GROUP MAINTENANCE AMERICA CORP, 424B3, 1997-10-22

GROUP MAINTENANCE AMERICA CORP
424B3, 1997-10-22
CONSTRUCTION - SPECIAL TRADE CONTRACTORS

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Filed Pursuant to Rule 424(b)(3)
Registration No. 333-34383

MACDONALD-MILLER INDUSTRIES, INC.
7717 DETROIT AVE. S.W.
SEATTLE, WASHINGTON 98106
(206) 763-9400
OCTOBER 20, 1997

Dear Shareholder:

A Special Meeting of Shareholders of MacDonald-Miller Industries, Inc. will
be held in the Service Training Room located at the offices of MacDonald-
Miller Industries, Inc., 7717 Detroit Ave. S.W., Seattle, Washington 98106 on
Monday, November 10, 1997 at 4:00 p.m., local time.

At the Special Meeting, you will be asked to consider and vote upon a
proposal (the "Merger Proposal") to approve and adopt an Agreement and Plan of
Merger (the "Merger Agreement") providing for the merger (the "Merger") of MMI
with and into a wholly owned subsidiary of Group Maintenance America Corp.
(the "Company"). Pursuant to the Merger Agreement, among other things, each
share of common stock of MMI ("MMI Common Stock") outstanding at the effective
time of the Merger will be converted into the right to receive cash and shares
of the Company's common stock, par value $0.001 per share. As a result of the
Merger, MMI will become a wholly owned subsidiary of the Company.

Business Advisory Services, Inc., the consultant retained by the MMI Board
of Directors to act as its financial advisor in connection with the Merger,
has rendered its opinion to the effect that the consideration to be received
by MMI shareholders pursuant to the Merger Agreement is fair from a financial
point of view. Business Advisory Services, Inc. is an independent consultant
that previously has provided evaluation services to MMI and the MMI Employee
Stock Ownership Plan and Trust for the years 1995 and 1996.

YOUR BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE MERGER AND THE
TRANSACTIONS RELATED THERETO AND HAS DETERMINED THAT THEY ARE IN THE BEST
INTERESTS OF MMI AND ITS SHAREHOLDERS. AFTER CAREFUL CONSIDERATION, YOUR BOARD
OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT SHAREHOLDERS VOTE FOR THE MERGER
PROPOSAL.

In the materials accompanying this letter, you will find a Notice of Special
Meeting of Shareholders, a Proxy Statement/Prospectus relating to the actions
to be taken by MMI shareholders at the Special Meeting and a proxy card. The
Proxy Statement/Prospectus more fully describes the proposed Merger.

ALL SHAREHOLDERS ARE INVITED TO ATTEND THE SPECIAL MEETING IN PERSON.
HOWEVER, WHETHER OR NOT YOU PLAN TO ATTEND THE SPECIAL MEETING, PLEASE
COMPLETE, SIGN, DATE AND RETURN YOUR PROXY IN THE ENCLOSED ENVELOPE. IF YOU
ATTEND THE SPECIAL MEETING, YOU MAY VOTE IN PERSON IF YOU WISH, EVEN THOUGH
YOU HAVE PREVIOUSLY RETURNED YOUR PROXY. IT IS IMPORTANT THAT YOUR SHARES BE
REPRESENTED AND VOTED AT THE SPECIAL MEETING.

Sincerely,

LOGO
[SIGNATURE OF FREDRIC J. SIGMUND
APPEARS HERE]
Fredric J. Sigmund
President and Chief Executive
Officer
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MACDONALD-MILLER INDUSTRIES, INC.
7717 DETROIT AVE. S.W.
SEATTLE, WASHINGTON 98106
(206) 763-9400

NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
TO BE HELD ON MONDAY, NOVEMBER 10, 1997

Notice is hereby given that a Special Meeting of Shareholders of MacDonald-
Miller Industries, Inc. ("MMI") will be held on Monday, November 10, 1997, at
4:00 p.m., local time, in the Service Training Room located at the offices of
MMI, 7717 Detroit Ave. S.W., Seattle, Washington 98106, for the following
purposes:

(1) To consider and vote upon a proposal (the "Merger Proposal") to approve
and adopt an Agreement and Plan of Merger, dated as of August 18, 1997
("Merger Agreement"), among MMI, Group Maintenance America Corp., a Texas
corporation (the "Company"), MacDonald-Miller Acquisition Corp., a
Washington corporation and a wholly owned subsidiary of the Company
("Merger Sub"), the principal shareholders of MMI and the trustee of the
MMI Employee Stock Ownership Plan and Trust, and the transactions
contemplated thereby, pursuant to which Merger Agreement, among other
things, (i) MMI will be merged with and into Merger Sub, following which
the surviving corporation will change its name to "MacDonald-Miller
Industries, Inc." and will be a wholly owned subsidiary of the Company
(the "Merger"); and (ii) as a result of the Merger, each share of common
stock of MMI ("MMI Common Stock") outstanding at the effective time of the
Merger (other than shares held in MMI's treasury or owned by the Company
or any subsidiary of the Company or MMI) will be converted into the right
to receive cash and shares of the Company's common stock, par value $0.001
("Company Common Stock").

(2) To transact such other business that may properly come before the Special
Meeting or any postponements or adjournments thereof.

Only shareholders of record at the close of business on September 15, 1997
are entitled to notice of and to vote at the Special Meeting, or at any
postponements or adjournments thereof. The affirmative vote of the holders of
two-thirds of the outstanding shares of MMI Common Stock is required for the
approval of the Merger Proposal.

Under the Washington Business Corporation Act ("WBCA"), shareholders of MMI
will be entitled to dissent from the proposed Merger and to demand payment in
cash of the appraised "fair value" of their shares of MMI Common Stock, if
they fully comply with the provisions of Chapter 23B.13 of the WBCA. A summary
of the rights of holders of MMI Common Stock and a copy of Chapter 23B.13 of
the WBCA are included in the accompanying Proxy Statement/Prospectus. See "The
Merger--Dissenters' Rights."

WHETHER OR NOT YOU EXPECT TO ATTEND THE SPECIAL MEETING IN PERSON, PLEASE
COMPLETE, DATE AND SIGN THE ENCLOSED PROXY AND RETURN IT WITHOUT DELAY IN THE
ENCLOSED ENVELOPE, WHICH REQUIRES NO ADDITIONAL POSTAGE IF MAILED IN THE
UNITED STATES. IF YOU ATTEND THE SPECIAL MEETING, YOU MAY THEN WITHDRAW YOUR
PROXY AND VOTE IN PERSON. YOUR PROXY CAN BE WITHDRAWN BY YOU AT ANY TIME
BEFORE IT IS VOTED.

Seattle, Washington
October 20, 1997
BY ORDER OF THE BOARD OF DIRECTORS,

LOGO
[SIGNATURE OF FREDRIC J. SIGMUND
APPEARS HERE]
Fredric J. Sigmund
President and Chief Executive
Officer

PLEASE DO NOT SEND IN ANY STOCK CERTIFICATES AT THIS TIME.

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GROUP MAINTENANCE AMERICA CORP.

AND

MACDONALD-MILLER INDUSTRIES, INC.

----------------

MACDONALD-MILLER INDUSTRIES, INC. PROXY STATEMENT

----------------

GROUP MAINTENANCE AMERICA CORP. PROSPECTUS

----------------

This Proxy Statement/Prospectus is being furnished to holders of common
stock ("MMI Common Stock") of MacDonald-Miller Industries, Inc., a Washington
corporation ("MMI"), in connection with the solicitation of proxies by the
Board of Directors of MMI (the "MMI Board") for use at the special meeting of
the shareholders of MMI (the "MMI Special Meeting") to be held at 4:00 p.m.,
local time, on Monday, November 10, 1997, or at any adjournments or
postponements thereof, for the purposes set forth herein and in the
accompanying Notice of Special Meeting of Shareholders. The MMI Special
Meeting will be held in the Service Training Room located at the offices of
MMI, 7717 Detroit Ave. S.W., Seattle, Washington 98106. MMI's telephone number
at that location is (206) 763-9400.

This Proxy Statement/Prospectus also constitutes a prospectus of Group
Maintenance America Corp., a Texas corporation (the "Company"), with respect
to up to 826,000 shares of the Company's common stock, par value $0.001 per
share ("Company Common Stock"), to be issued in connection with the merger
(the "Merger") of MMI with and into MacDonald-Miller Acquisition Corp., a
Washington corporation ("Merger Sub"), pursuant to the Agreement and Plan of
Merger, dated as of August 18, 1997 (the "Merger Agreement"), among the
Company, Merger Sub, MMI, the principal shareholders of MMI and the trustee of
the MMI Employee Stock Ownership Plan and Trust.

Pursuant to the Merger Agreement, among other things, each share of MMI
Common Stock outstanding at the effective time of the Merger will be converted
into the right to receive cash and shares of Company Common Stock. The
shareholders of MMI will receive aggregate consideration in the Merger equal
to $6.4 million in cash and that number of shares of Company Common Stock
which, when multiplied by the price at which the shares of Company Common
Stock are sold to the public pursuant to the Company's initial public offering
("IPO") to be undertaken in connection with, and as a condition to the
consummation of, the Merger, will be equal to $9.6 million. At the time of the
MMI Special Meeting, the shareholders of MMI will not know the actual number
of shares of Company Common Stock they will receive. The Company's
underwriters have estimated that the IPO price per share of Company Common
Stock will be between $13.00 and $15.00 (the "Estimated Range") and that
7,500,000 shares of Company Common Stock ("Size of the Offering") will be
offered in the IPO. Beginning on November 3, 1997, MMI Shareholders may obtain
information about any change in the Estimated Range or in the Size of the
Offering or other material information by calling MMI toll-free at 1-888-768-
4174. The Company estimates that five to ten days will elapse between the date
of the MMI Special Meeting and the effective time of the Merger. Presently,
there is no market for the Company Common Stock. The Company Common Stock has
been approved for listing on the New York Stock Exchange ("NYSE") under the
symbol "MAK".

THE ABOVE MATTERS ARE DISCUSSED IN DETAIL IN THIS PROXY STATEMENT/
PROSPECTUS. MMI SHAREHOLDERS ARE STRONGLY URGED TO READ AND CAREFULLY CONSIDER
THIS PROXY STATEMENT/PROSPECTUS IN ITS ENTIRETY, PARTICULARLY THE MATTERS
REFERRED TO UNDER "RISK FACTORS" BEGINNING ON PAGE 15.

THE SECURITIES TO BE ISSUED IN CONNECTION WITH THE MERGER HAVE NOT BEEN
APPROVED OR DISAPPROVED BY THE SECURITIES AND EXCHANGE COMMISSION (THE
"COMMISSION") OR ANY STATE SECURITIES COMMISSION NOR HAS THE COMMISSION
OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR
ADEQUACY OF THIS PROXY STATEMENT/PROSPECTUS. ANY REPRESENTATION TO
THE CONTRARY IS A CRIMINAL OFFENSE.

This Proxy Statement/Prospectus and the accompanying form of proxy are first
being mailed to shareholders of MMI on or about October 20, 1997.

THE DATE OF THIS PROXY STATEMENT/PROSPECTUS IS OCTOBER 20, 1997.
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TABLE OF CONTENTS
<TABLE>
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SUMMARY................................................................... 5
The Company............................................................. 5
MMI..................................................................... 7
Merger Sub.............................................................. 7
The MMI Special Meeting................................................. 7
The Merger.............................................................. 8
The Merger Agreement.................................................... 10
Risk Factors............................................................ 10
Summary Historical and Pro Forma Financial Information.................. 11
Comparative Per Share Data.............................................. 14
RISK FACTORS.............................................................. 15
Absence of Combined Operating History................................... 15
Dependence on Acquisitions for Growth................................... 15
Dependence on Additional Capital for Future Growth...................... 15
Exposure to Downturns in Housing Starts or New Commercial Construction.. 16
Fluctuation in Quarterly Operating Results.............................. 16
Availability of Technicians............................................. 16
Risks Associated with Development, Implementation, and Integration of
Operating Systems and Policies......................................... 17
Factors Affecting Internal Growth....................................... 17
Determination of IPO Price; Valuation of Acquisitions................... 17
Proceeds of IPO Payable for Existing Obligations and to Affiliates...... 18
Competition............................................................. 18
Dependence on Key Personnel............................................. 18
Regulation.............................................................. 18
Control by Existing Management and Stockholders......................... 19
Potential Effect of Shares Eligible for Future Sale on Price of Company
Common Stock........................................................... 19
Restrictions on Dividends; Dependence on Subsidiaries................... 20
No Market; Possible Volatibility of Stock Price......................... 20
Potential Anti-takeover Effect.......................................... 20
Certain Federal Income Tax Considerations............................... 20
Different Shareholder Rights............................................ 21
Uncertainty Concerning Cost Savings..................................... 21
Asset Encumbrance....................................................... 21
THE MMI SPECIAL MEETING................................................... 22
Time, Place and Date.................................................... 22
Purpose................................................................. 22
Record Date; Voting Rights.............................................. 22
Proxies, Revocation of Proxies.......................................... 22
THE MERGER................................................................ 24
General................................................................. 24
Effective Time.......................................................... 24
Terms of the Merger..................................................... 24
Background of the Merger................................................ 25
MMI's Reasons for the Merger; Recommendations of the MMI Board of
Directors.............................................................. 27
Opinion of MMI's Financial Advisor...................................... 29
Interests of Certain Persons in the Merger.............................. 32
Agreement to Vote....................................................... 32
Accounting Treatment.................................................... 32
Certain Federal Income Tax Considerations............................... 32
Regulatory Approvals.................................................... 34
Federal Securities Law Consequences..................................... 35
Stock Transfer Restriction Agreement.................................... 35
Dissenters' Rights...................................................... 36
Management and Operations Following the Merger.......................... 38
</TABLE>

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<TABLE>
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THE MERGER AGREEMENT...................................................... 39
Exchange of Share Certificates.......................................... 39
Business of MMI Pending the Merger...................................... 39
Conditions to the Merger................................................ 40
Termination; Amendment.................................................. 41
SELECTED HISTORICAL AND PRO FORMA FINANCIAL DATA.......................... 42
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
OPERATIONS............................................................... 45
Introduction............................................................ 45
Combined Results of Operations.......................................... 46
Liquidity and Capital Resources......................................... 48
Seasonal and Cyclical Nature of Business................................ 49
Inflation............................................................... 49
GroupMAC and Subsidiaries (formerly Airtron)............................ 49
MMI-Historical.......................................................... 51
MMI-Pro Forma........................................................... 53
Masters................................................................. 55
K&N..................................................................... 57
Other Residential Service Companies..................................... 59
Other Commercial Service Companies...................................... 61
INFORMATION REGARDING THE COMPANY......................................... 64
General................................................................. 64
Business................................................................ 65
Directors and Executive Officers........................................ 76
Executive Compensation.................................................. 79
Incentive Bonus Program................................................. 84
Related Party Transactions.............................................. 84
Security Ownership of Certain Beneficial Owners and Management.......... 86
THE ACQUISITIONS.......................................................... 88
INFORMATION REGARDING MMI................................................. 89
Business................................................................ 89
Directors and Executive Officers........................................ 89
Executive Compensation.................................................. 90
Related Party Transactions.............................................. 91
Security Ownership of Certain Beneficial Owners and Management.......... 92
DESCRIPTION OF COMPANY CAPITAL STOCK...................................... 93
General................................................................. 93
Preferred Stock......................................................... 93
Company Common Stock.................................................... 95
Statutory Business Combination Provision................................ 95
Certain Provisions of the Articles of Incorporation and Bylaws.......... 96
DESCRIPTION OF THE BANK CREDIT AGREEMENT.................................. 97
General................................................................. 97
Amortization; Prepayments............................................... 97
Security; Guarantees.................................................... 97
Interest Rates.......................................................... 97
Fees, Expenses and Costs; Credit Facilities............................. 97
Covenants............................................................... 98
Events of Default....................................................... 98
</TABLE>

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COMPARISON OF THE RIGHTS OF HOLDERS OF THE COMPANY COMMON STOCK AND MMI
COMMON STOCK............................................................. 99
General................................................................. 99
Mergers and Other Fundamental Transactions.............................. 99
Mergers Without Shareholder Approval.................................... 99
Appraisal Rights........................................................ 100
Amendments to Charter................................................... 100
Special Meetings of Shareholders........................................ 100
Cumulative Voting....................................................... 101
No Preemptive Rights.................................................... 101
Shareholder Action by Written Consent................................... 101
Newly Created Directorships............................................. 101
Removal of Directors.................................................... 101
Inspection of Books and Records......................................... 102
LEGAL MATTERS............................................................. 102
EXPERTS................................................................... 102
OTHER MATTERS............................................................. 102
AVAILABLE INFORMATION..................................................... 103
INDEX TO FINANCIAL STATEMENTS............................................. F-1
</TABLE>

ANNEX A AGREEMENT AND PLAN OF MERGER
ANNEX B OPINION OF BUSINESS ADVISORY SERVICES, INC.
ANNEX C CHAPTER 23B.13 OF THE WASHINGTON BUSINESS CORPORATION ACT

NO PERSONS HAVE BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATION OTHER THAN THOSE CONTAINED IN THIS PROXY STATEMENT/PROSPECTUS
IN CONNECTION WITH THE SOLICITATION OF PROXIES OR THE OFFERING OF SECURITIES
MADE HEREBY AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION MUST NOT
BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY, MMI OR ANY OTHER
PERSON. THIS PROXY STATEMENT/PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL,
OR A SOLICITATION OF AN OFFER TO BUY, ANY SECURITIES, OR THE SOLICITATION OF A
PROXY, IN ANY JURISDICTION TO OR FROM ANY PERSON TO WHOM IT IS NOT LAWFUL TO
MAKE ANY SUCH OFFER OR SOLICITATION IN SUCH JURISDICTION. NEITHER THE DELIVERY
OF THIS PROXY STATEMENT/PROSPECTUS NOR ANY DISTRIBUTION OF SECURITIES MADE
HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE AN IMPLICATION THAT THERE HAS
BEEN NO CHANGE IN THE AFFAIRS OF THE COMPANY OR MMI SINCE THE DATE HEREOF OR
THAT THE INFORMATION HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO ITS DATE.

THE INFORMATION CONTAINED HEREIN WITH RESPECT TO THE COMPANY, ITS
SUBSIDIARIES, PREDECESSORS AND COMPANIES TO BE ACQUIRED BY IT (OTHER THAN MMI)
HAS BEEN PROVIDED BY THE COMPANY. THE INFORMATION CONTAINED HEREIN WITH
RESPECT TO MMI AND ITS SUBSIDIARIES HAS BEEN PROVIDED BY MMI.

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SUMMARY

The Company has acquired 11 companies (the "Pre-IPO Companies") and has
entered into definitive agreements to acquire an additional 13 companies,
including MMI (the "IPO Acquisition Companies" and together with the Pre-IPO
Companies, the "GroupMAC Companies"), upon the closing of its IPO. The
following summary is qualified in its entirety by reference to, and should be
read in conjunction with, the more detailed information and the financial
statements, including the related notes thereto, appearing elsewhere in this
Proxy Statement/Prospectus. Unless the context otherwise requires, (i) the
"Company" or "GroupMAC" refers to Group Maintenance America Corp. and the
GroupMAC Companies, as well as to the business and operations of their
predecessors and (ii) "MMI" refers to MacDonald-Miller Industries, Inc. and its
consolidated subsidiaries. References to fiscal year financial information of
the Company refer to the fiscal year ended February 28 or 29 of the relevant
year or the respective fiscal year ends of the individual GroupMAC Companies,
and references to pro forma financial information of the Company or combined
financial information of any group of the GroupMAC Companies refer to a year
ending December 31 of the relevant year. After completion of the IPO, the
Company's fiscal year will be the calendar year.

THE COMPANY

The Company was founded in 1996 to create the leading nationwide provider of
heating, ventilation and air conditioning ("HVAC"), plumbing and electrical
services to residential and commercial customers. Since inception, the Company
has acquired 11 companies (the "Pre-IPO Companies") totaling $138.8 million in
combined 1996 revenues and has definitive agreements to acquire an additional
13 companies (the "IPO Acquisition Companies") upon the closing of its IPO.
After the IPO, the Company believes it will be one of the largest diversified
providers of HVAC, plumbing and electrical services in the United States with
operations in 37 cities in 21 states. The market for these diversified services
is approximately $100 billion. The Company's pro forma 1996 revenues and income
from operations were $307.5 million and $20.9 million, respectively, and
combined historical revenues of the GroupMAC Companies grew at an annual rate
of 14.3% from 1994 through 1996.

The Company offers a comprehensive range of services to residential and
commercial customers in both the new installation and the maintenance, repair
and replacement segments of the HVAC, plumbing and electrical service
industries. The Company's services include installing and maintaining,
repairing and replacing central air conditioning systems, furnaces, heat pumps
and plumbing and electrical systems. Approximately 74%, 23% and 3% of the
Company's pro forma 1996 revenues were derived from HVAC, plumbing and
electrical and other services, respectively. Approximately 59% of pro forma
1996 revenues were derived from residential services and 41% from commercial
services, while 54% of pro forma 1996 revenues were from the new installation
segment and 46% were from maintenance, repair and replacement services. Through
Callahan Roach and United Service Alliance, L.C. ("USA"), the Company also
provides consulting services and sells products to over 1,300 independent HVAC
and plumbing service companies. The Company believes that its broad service
offerings and geographic diversity provide several advantages, including the
ability to offer its customers a single source for a range of services, to
consolidate purchasing power with vendors, to capture business from customers
that operate on a regional and national basis, to mitigate the effects of
seasonality and to balance local or regional economic cycles.

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predictable nature of revenues associated with this segment and to target a
revenue mix of approximately 60% maintenance, repair and replacement and 40%
new installation over time. The Company derives considerable profits and
strategic value from its new installation business, as this segment generates a
database of potential customers for maintenance, repair and replacement
services. The higher volumes associated with consolidating a number of new
installation firms provide purchasing economies of scale that increase the
competitiveness of both the new installation and the maintenance, repair and
replacement segments.

The Company believes that growth through acquisition is important and that
profits can be maximized through the efficient integration of acquired
companies. In order to provide the Company with integration, internal training
and management development capabilities, the Company acquired two leading
national HVAC consulting organizations, Callahan Roach and USA, in July 1997.
Callahan Roach serves HVAC and plumbing service companies across the United
States in such areas as advertising, marketing, business valuation, pricing
strategies, management information systems, acquisition planning and
integration and general consulting. Callahan Roach maintains relationships with
over 1,200 HVAC and plumbing service companies, principally in the residential
market. The Company estimates that aggregate revenues for these Callahan Roach
customers are in excess of $2 billion annually. USA provides training and other
products and services to 105 independent commercial HVAC service companies
across the United States. The Company estimates that aggregate revenues for
these USA customers are in excess of $1 billion annually. Of the 24 GroupMAC
Companies, 12 were clients of Callahan Roach and/or USA prior to their
acquisition. The Company intends to utilize these complementary customer bases
to advance its national marketing strategies and believes that these companies
will be a source of future acquisition prospects.

Available industry data indicate that the Company's markets are large and
fragmented. The HVAC service market is estimated to be approximately $65
billion in annual revenue, with over 40,000 service providers. Approximately
$26 billion of the total is represented by the residential market, with the
commercial market representing the balance. The plumbing service market is
estimated to be $19 billion and the electrical service market is estimated to
be $16 billion. The plumbing and electrical service markets each has over
30,000 participants. The vast majority of participants in the HVAC, plumbing
and electrical service industries are small, owner-operated businesses with
limited financial resources and limited access to capital for expansion. The
Company believes there is a significant opportunity for a well-capitalized,
nationwide provider of these services to consolidate a large number of
independent companies.

The Company is implementing operating and acquisition strategies to maintain
and expand its position as a leading national provider of comprehensive HVAC,
plumbing and electrical services to the residential and commercial markets.

Key elements of the Company's operating strategy are to:

. achieve operating efficiencies through volume purchasing, the
implementation of "best practices" and the development of strong
internal training capabilities;

. operate on a decentralized basis to allow entrepreneurial management to
continue to capitalize on local market knowledge and existing customer
relationships;

. attract, develop and retain high quality technicians to assure superior
customer service; and

. establish national market coverage to provide full service to regional
and national accounts.

Key elements of the Company's acquisition strategy are to:

. acquire companies across multiple market segments to provide a balanced
mix of revenues and foster internal growth through cross-selling of
services;

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. expand geographically by acquiring core businesses in new markets and
"tucking in" smaller companies;

. utilize Company Common Stock to retain and provide incentives to the
management and employees of acquired companies; and

. leverage its industry reputation and relationships to make future
acquisitions.

The Company is a Texas corporation with its principal executive offices
located at 1800 West Loop South, Suite 1375, Houston, Texas 77027, and its
telephone number is (713) 626-4778.

MMI

MMI was founded in 1965 as MacDonald-Miller Company, Inc. offering HVAC
service, maintenance and design/build engineering. In 1986, the company
implemented a corporate restructuring and formed MMI as a holding company
providing financial and business services to MacDonald-Miller Company, Inc.,
which provided the design/build contracting services, and MacDonald-Miller
Service, Inc., which provided the service and maintenance operations.

MacDonald-Miller Company, Inc. is one of the major design/build contractors
in the Pacific Northwest, specializing in engineering, pre-construction
services, fabrication and installation of complex mechanical systems of all
types. MacDonald-Miller Service, Inc. is one of the largest HVAC service and
maintenance contractors in the Pacific Northwest, serving a diverse group of
customers from the Canadian border to central Oregon.

In connection with, but immediately prior to the consummation of, the Merger,
the business of MacDonald-Miller Residential Division will be segregated into a
new, wholly owned corporation, all of the stock of which will be distributed to
the shareholders of MMI. The remaining business of MMI, including the
businesses conducted by its subsidiaries, MacDonald-Miller Company, Inc. and
MacDonald-Miller Service, Inc., will be merged with and into Merger Sub.

MMI is headquartered in Seattle, Washington and has facilities in Seattle,
Washington and Portland, Oregon. The principal executive offices of MMI are
located at 7717 Detroit Ave. S.W., Seattle, Washington 98106 and its telephone
number is (206) 763-9400.

MERGER SUB

Merger Sub was recently organized by the Company for the purpose of effecting
the acquisition of MMI. It has no material assets and has not engaged in any
activities except in connection with the proposed Merger. The principal
executive offices of Merger Sub are located at 1800 West Loop South, Suite
1375, Houston, Texas 77027 and its telephone number is (713) 626-4778.

THE MMI SPECIAL MEETING

Time, Place and Date. The MMI Special Meeting will be held at 4:00 p.m.,
local time, on Monday, November 10, 1997 in the Service Training Room located
at the offices of MMI, 7717 Detroit Ave. S.W., Seattle, Washington 98106.

Purpose. At the MMI Special Meeting, shareholders will be asked to consider
and vote upon a proposal to adopt and approve the Merger Agreement and the
transactions contemplated thereby, including the Merger. A copy of the Merger
Agreement is attached to this Proxy Statement/Prospectus as Annex A. See "The
MMI Special Meeting--Purpose."

Record Date; Voting Rights. Holders of record of MMI Common Stock at the
close of business on September 15, 1997 (the "Record Date") will be entitled to
notice of, and to vote at, the MMI Special Meeting and at any adjournment or
postponement thereof. There were issued and outstanding 113,025 shares of

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MMI Common Stock as of the Record Date, held by approximately 213 shareholders
of record. Under the Washington Business Corporation Act ("WBCA"), the adoption
and approval of the Merger Agreement by the shareholders of MMI requires the
affirmative vote of the holders of at least two-thirds of the outstanding
shares of MMI Common Stock. As of the Record Date, 65,983 shares of MMI Common
Stock (approximately 58.4% of the shares of MMI Common Stock outstanding as of
the Record Date) were outstanding and entitled to be voted by the directors and
executive officers, and their affiliates, of MMI. See "The MMI Special
Meeting--Record Date; Voting Rights."

Fredric J. Sigmund, Steven C. Lovely, Gary S. Kuhlman, James A. MacDonald, B.
Joel Smith and Charles H. Orton (collectively, the "Principal Shareholders")
and certain other holders of MMI Common Stock, who beneficially own in the
aggregate 75,601 shares of MMI Common Stock (approximately 66.9% of the shares
of MMI Common Stock outstanding on the Record Date), have agreed to vote their
shares of MMI Common Stock, or to cause their shares of MMI Common Stock to be
voted, in favor of the Merger at the MMI Special Meeting. When these shares of
MMI Common Stock are voted at the MMI Special Meeting in favor of the adoption
and approval of the Merger Agreement and the transactions contemplated thereby,
the affirmative vote of additional shares of MMI Common Stock will not be
required to so adopt and approve the Merger Agreement and the transactions
contemplated thereby.

Holders of a majority of the shares of MMI Common Stock, represented in
person or by proxy, will constitute a quorum. Each holder will be entitled to
cast one vote for each share of MMI Common Stock held. See "The MMI Special
Meeting--Record Dates; Voting Rights."

THE MERGER

Terms of Merger. If the Merger is approved and consummated, each share of MMI
Common Stock outstanding at the date and time that the Merger becomes effective
(other than shares held in MMI's treasury or owned by any subsidiary of MMI)
will be converted into the right to receive cash and shares of Company Common
Stock. The number of shares of Company Common Stock to be issued for each share
of MMI Common Stock will be based, in part, upon the initial public offering
price (the "IPO Price") at which the shares of Company Common Stock are sold to
the public pursuant to the Company's IPO to be undertaken in connection with,
and as a condition to the consummation of, the Merger. In addition, the holders
of MMI Common Stock as of the date and time that the Merger becomes effective
will be entitled to additional consideration of two times the excess, if any,
of EBITDA (as defined in the Merger Agreement) over $2,613,012.80. Such
additional consideration, if any, will be payable on or before April 30, 1998,
and will be apportioned between cash and Company Common Stock in the same ratio
as in the Merger. Presently, there is no market for the Company Common Stock.
The Company Common Stock has been approved for listing on the NYSE under the
symbol "MAK".

MMI's Reasons for the Merger; Recommendations of the MMI Board of
Directors. After taking into consideration various factors, the MMI Board has
determined that the Merger is in the best interests of MMI and its
shareholders, and recommends adoption and approval of the Merger Agreement and
the transactions contemplated thereby. For a discussion of the factors
considered by the MMI Board in reaching its decisions to approve the Merger
Agreement and the transactions contemplated thereby, including the Merger, and
to recommend that the MMI shareholders vote FOR the proposal to adopt and
approve the Merger Agreement and the transactions contemplated thereby,
including the Merger, see "The Merger--MMI's Reasons for the Merger;
Recommendations of the MMI Board of Directors."

Opinion of MMI's Financial Advisor. Business Advisory Services, Inc.
("Business Advisory") has delivered its written opinion to the MMI Board to the
effect that, as of the date of its opinion, the consideration to be received by
the MMI shareholders pursuant to the Merger Agreement is fair to MMI
shareholders from a financial point of view. A copy of such opinion, which sets
forth the assumptions made, matters considered, and

8
<PAGE>

limits on the review undertaken by Business Advisory in arriving at its opinion
is attached to this Proxy Statement/Prospectus as Annex B, and should be read
in its entirety. See "The Merger--Opinion of MMI's Financial Advisor."

Interests of Certain Persons in the Merger. In considering the recommendation
of the MMI Board of Directors to approve and adopt the Merger Agreement and the
transactions contemplated thereby, including the Merger, MMI shareholders
should be aware that the executive officers of MMI and certain members of the
MMI Board have interests in the Merger that are in addition to the interests of
MMI shareholders generally, and that the members of the MMI Board having such
interests participated in the discussion, deliberation and voting of the MMI
Board with respect to the Merger Agreement. See "The Merger--Interests of
Certain Persons in the Merger."

. Fredric J. Sigmund, President, Chief Executive Officer and a director of
MMI, will become a director of the Company.

. MMI will enter into a new ten year renewable lease with F&V Investments,
a company owned by Mr. Sigmund, to replace the existing lease for MMI's
Seattle, Washington facility. The annual base rent to be paid under this
lease is approximately $475,000. The Company believes that the terms of
such lease are no less favorable to the Company than would be available
under a similar lease entered into on an arm's length basis.

. Each of the Principal Shareholders will enter into an employment
agreement with MMI which provides for an annual salary of $120,000 and a
bonus based on MMI's future performance. Each of the agreements is for a
three year term. In the event of a Principal Shareholder's death, such
Principal Shareholder's agreement will terminate. In the event of a
Principal Shareholder's disability, MMI will continue payment of
compensation during the first six month period of such disability to the
extent not covered by MMI's disability insurance policies. In the event a
Principal Shareholder's employment is terminated, such Principal
Shareholder will receive compensation for the periods described in the
agreement. In addition, generally, each Principal Shareholder has agreed
not to compete with MMI until the later to occur of (i) three years after
the date of the agreement or (ii) one year following such Principal
Shareholder's termination of employment.

Accounting Treatment. The Merger will be accounted for by the Company under
the purchase method of accounting in accordance with Accounting Principles
Board Opinion No. 16, "Business Combinations," as amended. See "The Merger--
Accounting Treatment."

Certain Federal Income Tax Considerations. The Merger is intended to
constitute a reorganization within the meaning of Section 368(a) of the
Internal Revenue Code of 1986, as amended (the "Code") so that no gain or loss
would be recognized by MMI shareholders with respect to the receipt of the
Company Common Stock in exchange for their shares of MMI Common Stock in the
Merger (except with respect to the cash portion of the Merger consideration to
be paid to the holders of MMI Common Stock). For a further discussion of
certain of the federal income tax consequences of the Merger, see "The Merger--
Certain Federal Income Tax Considerations."

Dissenters' Rights. Holders of MMI Common Stock are entitled to dissenters'
rights under Chapter 23B.13 of the WBCA in connection with the Merger. In order
to exercise their dissenters' rights to demand payment in cash for the
appraised "fair value" of their shares of MMI Common Stock, such shareholders
must comply fully with the provisions of Chapter 23B.13 of the WBCA, a copy of
which is attached as Appendix C to this Proxy Statement/Prospectus. See "The
Merger--Dissenters' Rights."

9
<PAGE>

THE MERGER AGREEMENT

Conditions to the Merger. Consummation of the Merger is subject to the
satisfaction of a number of conditions, including but not limited to the
delivery of certificates by each of the parties to the Merger Agreement to the
other parties with respect to the accuracy of the representations and
warranties of such parties, the performance, compliance with all covenants to
be performed and complied with by such parties, and the procurement of all of
the consents, approvals and waivers of third parties or any regulatory body or
authority by such parties, the delivery by the Principal Shareholders and MMI
to the Company and Merger Sub of a certificate as to the absence of any legal
action or proceeding against any of the parties arising by reason of the Merger
Agreement which is likely (i) to restrain, prohibit or invalidate the
consummation of the transactions contemplated by the Merger Agreement, and (ii)
to have a material adverse effect upon MMI or the Company, the completion by
the Company of its IPO and the making of any required filings under applicable
law and the expiration or termination of the required waiting periods. See "The
Merger Agreement--Conditions to the Merger."

Termination. The Merger Agreement may be terminated and the Merger may be
abandoned prior to its effectiveness either before or after its approval by the
shareholders of MMI under the circumstances specified in the Merger Agreement,
including (i) by the mutual written agreement of the Company and MMI, and (ii)
by either party if the Merger is not consummated by December 31, 1997.

Surrender of Certificates. Prior to the effectiveness of the Merger, the
Company will mail a letter of transmittal with instructions to all holders of
record of MMI Common Stock as of the Record Date for use in surrendering their
stock certificates in exchange for certificates representing the Company Common
Stock, the cash consideration and a cash payment in lieu of fractional shares.
Certificates should not be surrendered until the letter of transmittal is
received. In the event the Merger is not consummated for any reason, the
certificates representing the MMI Common Stock will be returned to the holders
thereof. See "The Merger Agreement--Exchange of Share Certificates."

Comparison of Stockholder Rights. See "Comparison of the Rights of Holders of
Company Common Stock and MMI Common Stock" for a summary of the material
differences between the rights of holders of the Company Common Stock and MMI
Common Stock.

RISK FACTORS

Shareholders should carefully consider the risk factors related to the
combined companies after the Merger. See "Risk Factors" beginning on page 15 of
this Proxy Statement/Prospectus.

10
<PAGE>

SUMMARY HISTORICAL AND PRO FORMA FINANCIAL INFORMATION

The Company has previously acquired the Pre-IPO Companies and will acquire
the IPO Acquisition Companies simultaneously with the closing of the IPO. The
first and largest acquisition made by the Company was that of Airtron, Inc.
("Airtron"). For accounting purposes, this transaction was accounted for as a
reverse acquisition, as if Airtron acquired the GroupMAC Parent (Group
Maintenance America Corp. parent only), because the former shareholders of
Airtron owned a majority of GroupMAC Parent's common stock upon consummation of
the transaction. As such, the summary historical financial data set forth below
as of and for the three-year period ended February 28, 1997 have been derived
from the financial statements of Airtron, which have been audited by KPMG Peat
Marwick LLP, independent public accountants. The Financial Statements of
GroupMAC Parent and the Pre-IPO Companies are included in the Financial
Statements from their respective dates of acquisition. The historical balance
sheet data as of June 30, 1997 include A-ABC Appliance, Inc. ("A-ABC") and A-1
Appliance & Air Conditioning, Inc. ("A-1" and, together with A-ABC, "A-ABC/A-
1"), Hallmark Air Conditioning, Inc. ("Hallmark") and K&N Plumbing, Heating and
Air Conditioning, Inc. ("K&N"), which were acquired effective June 1, 1997, and
Charlie Crawford, Inc. (d/b/a Charlie's Plumbing) ("Charlie's"), Costner
Brothers, Inc. ("Costner"), AA JARL, Inc. (d/b/a Jarrell Plumbing) ("Jarrell")
and the residential service assets of Way Service, Inc. ("Way Residential"),
which were acquired effective June 30, 1997.

The summary pro forma financial data of the Company as of and for the six
months ended June 30, 1996 and 1997 and the year ended December 31, 1996 are
derived from the Unaudited Pro Forma Combined Financial Statements of the
Company that appear elsewhere in this Proxy Statement/Prospectus. The pro forma
financial data listed below present certain information for the Company, as
adjusted for (i) the effects of the acquisitions of the GroupMAC Companies and
(ii) the effects of certain pro forma adjustments to the historical financial
statements of the GroupMAC Companies which are directly related to these
acquisitions. The pro forma as adjusted financial data give effect to
consummation of the IPO and the application of the net proceeds therefrom. The
pro forma financial data of the Company do not purport to represent what the
Company's results of operations or financial position actually would have been
had these events, in fact, occurred on the date or at the beginning of the
period indicated, nor are they intended to project the Company's results of
operations or financial position for any future date or period.

The data presented below should be read in conjunction with the Selected
Historical and Pro Forma Financial Data, Management's Discussion and Analysis
of Financial Condition and Results of Operations, the Financial Statements and
the related notes thereto and the Unaudited Pro Forma Combined Financial
Statements and the notes thereto included elsewhere herein.

11
<PAGE>

SUMMARY FINANCIAL DATA

(IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
PRO FORMA AS ADJUSTED
-------------------------------
FISCAL YEARS ENDED SIX MONTHS ENDED
FEBRUARY 28 OR 29, JUNE 30,
-------------------------- DECEMBER 31, --------------------
1995 1996 1997 1996(2) 1996(2) 1997(2)
------- ------- ------- ------------ -------- --------
<S> <C> <C> <C> <C> <C> <C>
INCOME STATEMENT
DATA(1):
Revenues................ $72,226 $73,765 $81,880 $307,507 $151,396 $157,941
Gross Profit............ 21,766 21,091 23,374 71,596 33,479 36,582
Selling, General and
Administrative
Expenses(3)............ 20,282(4) 17,615 19,811 48,953(5) 24,068 26,978(6)
Goodwill
Amortization(7)........ -- -- -- 1,891 946 946
------- ------- ------- -------- -------- --------
Income from Operations.. 1,484 3,476 3,563 20,752 8,465 8,658
Interest Income
(Expense), Net......... 76 68 89 154 39 181
Other Income, Net....... 140 246 256 297 240 508
------- ------- ------- -------- -------- --------
Income Before Income Tax
Provision.............. 1,700 3,790 3,908 21,203 8,744 9,347
Income Tax Provision.... 911 1,651 1,572 9,237 3,876 4,117
------- ------- ------- -------- -------- --------
Net Income.............. $ 789 $ 2,139 $ 2,336 $ 11,966 $ 4,868 $ 5,230
======= ======= ======= ======== ======== ========
Net Income Per Share.... $ .59 $ .24 $ .26
======== ======== ========
Weighted Average Shares
Outstanding(8)......... 20,159 20,159 20,159
======== ======== ========
OTHER DATA:
EBITDA(9)............... $ 1,853 $ 3,960 $ 4,027 $ 26,061 $ 11,132 $ 11,843
======= ======= ======= ======== ======== ========
</TABLE>

<TABLE>
<CAPTION>
JUNE 30, 1997
----------------------------------
PRO PRO FORMA
ACTUAL FORMA(2) AS ADJUSTED(2)
-------- -------- --------------
<S> <C> <C> <C>
BALANCE SHEET DATA:
Cash and Cash Equivalents.................... $ 5,875 $ 10,214 $ 9,457
Working Capital.............................. 7,425 (13,359) 29,303
Total Assets................................. 64,942 174,284 173,330
Total Debt................................... 31,045 46,022 2,107
Preferred Stock.............................. 17,121 19,271 --
Shareholders' Equity......................... (10,998) 25,468 118,618
</TABLE>
- -------
(1) Concurrent with the IPO, the Company intends to change its fiscal year end
from February 28 to December 31.
(2) Pro forma financial data give effect to the completed and pending
acquisitions that are described in Unaudited Pro Forma Combined Financial
Statements of the Company, as if they had occurred at January 1, 1996 for
the Income Statement Data and on June 30, 1997 for the Balance Sheet Data.
Pro forma as adjusted data give effect to a reduction in interest expense
as a result of reductions in indebtedness upon application of a portion of
the net proceeds to the Company from the IPO and the redemption of
preferred stock.
(3) Reflects a decrease of $11.1 million, $4.2 million and $5.2 million for the
year ended December 31, 1996, six months ended June 30, 1996 and 1997,
respectively, for pro forma reductions in salaries, bonuses and benefits to
former owners of the GroupMAC Companies to which they have agreed
prospectively. Also excludes non-recurring non-cash compensation expense of
$7.0 million related to the reverse acquisition of GroupMAC Parent during
the second quarter of 1997.
(4) Includes $2.4 million for compensation expense resulting from revaluation
of warrants.
(5) Includes $0.5 million of expenses for the formation and build-up of
corporate management and infrastructure.
(6) Includes $1.6 million of expenses for the formation and build-up of
corporate management and infrastructure.
(7) Consists of amortization recorded or to be recorded as a result of the
acquisition of GroupMAC Companies over a 40-year period and computed on the
basis described in the Notes to the Unaudited Pro Forma Combined Financial
Statements of the Company.
(8) Computed on a basis described in Note 4 of Notes to Unaudited Pro Forma
Combined Financial Statements of the Company.
(9) Represents earnings before interest, taxes, depreciation and amortization
(EBITDA). Based on its experience in the industry, the Company believes
that EBITDA is an important tool for measuring the performance of companies
in the industry (including potential acquisition targets) in several areas
such as liquidity, operating performance and leverage. In addition, lenders
use EBITDA as a criterion in evaluating companies in the industry and the
Company's financing arrangement contains covenants in which EBITDA is used
as a measure of financial performance. The EBITDA measure for the Company
may not be consistent with similarly titled measures for other companies.
EBITDA should not be considered by a shareholder of MMI Common Stock as an
alternative to operating or net income (as determined in accordance with
GAAP) as an indicator of the Company's performance or to cash flow from
operations (as determined in accordance with GAAP) as a measure of
liquidity. See the comparative historical statements of cash flows included
herein and "Management's Discussion of Financial Condition and Results of
Operations" and "--Liquidity and Capital Resources" for discussion of other
measures of performance determined in accordance with GAAP and the
Company's sources and applications of cash flow.

12
<PAGE>

SUMMARY INDIVIDUAL GROUPMAC COMPANIES FINANCIAL DATA
(IN THOUSANDS)
<TABLE>
<CAPTION>
SIX MONTHS ENDED
FISCAL YEAR(1) JUNE 30,
--------------------------- -----------------
1994 1995 1996 1996 1997
-------- -------- -------- -------- --------
<S> <C> <C> <C> <C> <C>
Group Maintenance America
Corp. and Subsidiaries
(Formerly Airtron)(2)
Revenues.................... $ 72,226 $ 73,765 $ 81,880 $ 37,127 $ 38,676
Gross Profit................ 21,766 21,091 23,374 10,209 10,863
Income from Operations...... 1,484 3,476 3,563 739 1,039
MMI(3)
Revenues.................... $ 39,534 $ 45,508 $ 66,059 $ 36,382 $ 38,836
Gross Profit................ 7,278 8,581 9,686 4,792 5,385
Income from Operations...... 1,190 1,243 2,054 1,086 1,597
Masters
Revenues.................... $ 30,327 $ 35,160 $ 39,826 $ 18,279 $ 19,318
Gross Profit................ 2,309 3,414 3,972 1,640 1,861
Income from Operations...... 645 1,041 1,488 631 664
K&N(2)
Revenues.................... $ 21,458 $ 22,709 $ 24,279 $ 11,893 $ 12,355
Gross Profit................ 2,615 2,359 3,574 1,460 1,693
Income from Operations...... 340 (119) 936 111 88
Other Residential Services (11
companies)(2)(4)
Revenues.................... $ 38,481 $ 43,216 $ 48,964 $ 23,255 $ 24,886
Gross Profit................ 13,084 15,679 18,336 8,493 10,087
Income from Operations...... 1,652 1,469 1,830 411 1,810
Other Commercial Services (9
companies)(4)
Revenues.................... $ 33,208 $ 38,476 $ 46,499 $ 24,460 $ 23,870
Gross Profit................ 9,434 10,863 12,654 6,885 6,693
Income from Operations...... 1,765 1,734 2,287 2,182 1,495
GroupMAC Parent(5)
Revenues.................... $ -- $ -- $ -- $ -- $ --
Gross Profit................ -- -- -- -- --
Income from Operations...... -- -- (724) -- (9,384)
Total
Revenues.................... $235,234 $258,834 $307,507 $151,396 $157,941
Gross Profit................ 56,486 61,987 71,596 33,479 36,582
Income (Loss) from
Operations................. 7,076 8,844 11,434 5,160 (2,691)
Pro Forma Income from
Operations................. 20,852 8,515 8,708
</TABLE>
- -------
(1) Several of the individual GroupMAC Companies have fiscal year ends that
differ from December 31, which is the year end all of the GroupMAC
Companies will use concurrent with the IPO.
(2) The operating results of A-ABC/A-1, Hallmark and K&N include the activity
of each of these companies for the six months ended June 30, 1997, although
these companies were acquired, for accounting purposes, by Airtron on June
1, 1997. A-ABC/A-1 and Hallmark results are included in the Other
Residential Services group. Airtron results include Airtron on a stand
alone basis without inclusion of the results of any acquired companies.
(3) The operating results of MMI are pro forma results giving effect to the
distribution of assets of the MacDonald-Miller Residential Division. See
the Unaudited Pro Forma Consolidated Financial Statements of MMI located
elsewhere in this Proxy Statement/Prospectus.
(4) The remainder of the GroupMAC Companies are classified by their primary
revenue generating category.
(5) GroupMAC Parent's operating results include the six months ended June 30,
1997, although the company was acquired, for accounting purposes, by
Airtron in May 1997. Includes non-recurring compensation expense of $7.0
million related to the reverse acquisition of the GroupMAC Parent.

13
<PAGE>

COMPARATIVE PER SHARE DATA

The following table sets forth certain historical per share data of the
Company and MMI and combined per share data on an unaudited pro forma basis
after giving effect to the Merger on the purchase method of accounting assuming
that 4.6217 shares of Company Common Stock are issued in exchange for each
share of MMI Common Stock in the Merger. This data should be read in
conjunction with the selected historical and pro forma financial data, the pro
forma combined condensed financial statements and the separate historical
consolidated financial statements of the Company and MMI, and notes thereto,
included elsewhere in this Proxy Statement/Prospectus. The unaudited pro forma
combined financial data are not indicative of the operating results that would
have been achieved had the transaction occurred at the beginning of the periods
presented and should not be construed as representative of future operations.
<TABLE>
<CAPTION>
THE COMPANY MMI
---------------------- ---------------------
COMBINED EQUIVALENT
PRO FORMA PRO
HISTORICAL AS ADJUSTED HISTORICAL FORMA(1)
---------- ----------- ---------- ----------
<S> <C> <C> <C> <C>
Book value per share:
June 30, 1997.................... $(1.26) $5.94 $42.67 $27.46
Earnings per common share:
Six months ended June 30, 1997... $ 0.05 $0.26 $ 7.44 $ 1.20
Last fiscal year end............. $ 0.45 $0.59 $ 3.28 $ 2.74
</TABLE>
- --------
(1) The Equivalent Pro Forma amounts represent the Combined Pro Forma amounts
as adjusted multiplied by the assumed exchange ratio of shares of MMI
Common Stock (4.6217 to 1) which assumes an IPO Price of $14.00. This
amount excludes the cash consideration paid in the Merger of $43.14 for
each share of MMI Common Stock. See "The Merger--Terms of the Merger."

Impact of Increase in IPO Price of $1.00 Per Share. A $1.00 increase in the
IPO price increases the Combined Pro Forma As Adjusted Book Value Per Share as
of June 30, 1997, the Combined Pro Forma As Adjusted Earnings Per Common Share
for the six months ended June 30, 1997 and the last fiscal year end by
approximately $0.056, $0.002 and $0.006, respectively. A $1.00 increase in the
IPO price also decreases the MMI Equivalent Pro Forma Book Value Per Share as
of June 30, 1997, the Equivalent Pro Forma Earnings Per Common Share for the
six months ended June 30, 1997 and the last fiscal year end by approximately
$(1.592), $(0.070) and $(0.159), respectively. In addition, such a change to
the IPO price would result in a decrease in the exchange ratio from 4.6217-1 to
4.3136-1.

Impact of Decrease in IPO Price of $1.00 Per Share. A $1.00 decrease in the
IPO price decreases the Combined Pro Forma As Adjusted Book Value Per Share as
of June 30, 1997, the Combined Pro Forma As Adjusted Earnings Per Common Share
for the six months ended June 30, 1997 and the last fiscal year end by
approximately $(0.063), $(0.003) and $(0.006), respectively. A $1.00 decrease
in the IPO price also increases the MMI Equivalent Pro Forma Book Value Per
Share as of June 30, 1997, the Equivalent Pro Forma Earnings Per Common Share
for the six months ended June 30, 1997 and the last fiscal year end by
approximately $1.800, $0.079 and $0.180, respectively. In addition, such a
change to the IPO price would result in an increase in the exchange ratio from
4.6217-1 to 4.9772-1.

Comparison of Market Data. There has previously been no public market for the
shares of Company Common Stock or MMI Common Stock. Consequently, there are no
relevant market data for the Company Common Stock or MMI Common Stock currently
available for comparative purposes.

Dividends. The Company and MMI have not declared or paid any cash dividends
on their respective capital stock since their respective incorporations and do
not, in the foreseeable future, intend to declare or pay any cash dividends.
Any future determination as to declaration and payment of cash dividends will
be made at the discretion of their respective Board of Directors. The Merger
Agreement also limits the ability of MMI to declare dividends.

14
<PAGE>

RISK FACTORS

The following risk factors should be considered carefully by the holders of
MMI Common Stock in evaluating whether to approve and adopt the Merger
Agreement and the transactions contemplated thereby, including the Merger, and
thereby become holders of Company Common Stock. These factors should be
considered in conjunction with the other information included in this Proxy
Statement/Prospectus. To the extent this Proxy Statement/Prospectus contains
certain forward-looking statements, actual results could differ materially
from those projected in the forward-looking statements as a result of any
number of factors, including the risk factors set forth below and elsewhere in
this Proxy Statement/Prospectus.

ABSENCE OF COMBINED OPERATING HISTORY

The Company has conducted limited operations to date. See "Information
Regarding the Company." Prior to their acquisition by the Company, the Pre-IPO
Companies operated as separate, independent businesses. Further, the IPO
Acquisition Companies, including MMI, have operated, and will continue to
operate prior to the closing of the IPO, as separate, independent businesses.
The Company will rely on the separate systems of the GroupMAC Companies for
the foreseeable future. There can be no assurance that the Company will be
able to integrate the operations of the GroupMAC Companies successfully or to
institute the necessary systems and procedures, including accounting and
financial reporting systems, to manage the combined enterprise on a profitable
basis. The Company's management group has been assembled only recently, and a
significant number of the Company's management group has not worked in the
HVAC, plumbing and electrical service industries prior to joining the Company.
There can be no assurance that the management group will be able to manage the
combined entity or to implement effectively the Company's operating strategy,
internal growth strategy and acquisition program. The pro forma and combined
historical financial results of the GroupMAC Companies cover periods when the
GroupMAC Companies were not under common control or management and may not be
indicative of the Company's future financial or operating results. The
inability of the Company to integrate and manage the GroupMAC Companies and
such additional businesses as the Company may acquire as a cohesive, efficient
enterprise or to eliminate unnecessary duplication may have a material adverse
effect on the business, financial condition and results of operations of the
Company.

DEPENDENCE ON ACQUISITIONS FOR GROWTH

The Company intends to grow primarily by acquiring residential and
commercial contracting businesses that install or maintain, repair and replace
HVAC, plumbing, electrical and other systems and equipment in existing homes
and commercial buildings and in homes and commercial buildings under
construction in its existing and new markets. The Company's acquisition
strategy presents risks that, singly or in any combination, could materially
adversely affect the Company's business, financial condition and results of
operations. These risks include the possibility of the adverse effect on
existing operations of the Company from the diversion of management attention
and resources to acquisitions, the possible loss of acquired customer bases
and key personnel, including service technicians and managers, possible
adverse effects on earnings resulting from amortization of goodwill created in
purchase transactions and the contingent and latent risks associated with the
past operations and other unanticipated problems arising in the acquired
businesses. The success of the Company's acquisition strategy will depend on
the extent to which it is able to acquire, successfully absorb and profitably
manage additional businesses, and no assurance can be given that the Company's
strategy will succeed. The increasing competition for suitable acquisition
targets could limit the Company's ability to locate suitable acquisition
targets and could increase the cost of purchasing such acquisition targets.
See "Information Regarding the Company--Business--Acquisition Strategy."

DEPENDENCE ON ADDITIONAL CAPITAL FOR FUTURE GROWTH

The Company historically has financed capital expenditures and acquisitions
primarily through the issuance of equity securities, secured bank borrowings
and internally generated cash flow. The timing, size and success of

15
<PAGE>

the Company's acquisition efforts and the associated capital commitments
cannot be readily predicted. The Company currently intends to finance future
acquisitions by using shares of Company Common Stock for all or a substantial
portion of the consideration to be paid. If the Company Common Stock does not
maintain a sufficient market value, or if potential acquisition candidates are
otherwise unwilling to accept Company Common Stock as part of the
consideration for the sale of their businesses, the Company may be required to
utilize more of its cash resources, if available, in order to initiate and
maintain its acquisition program. The Company will have little, if any, net
proceeds of its IPO remaining for future acquisitions and working capital
after payment of IPO expenses, any indebtedness incurred or assumed by the
Company and the cash portion of the purchase price for the IPO Acquisition
Companies. There can be no assurance the Company will be able to raise
sufficient capital at reasonable rates, if at all. If the Company does not
have sufficient cash resources, its growth could be limited unless it is able
to obtain additional capital through debt or equity financing. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations--Liquidity and Capital Resources."

EXPOSURE TO DOWNTURNS IN HOUSING STARTS OR NEW COMMERCIAL CONSTRUCTION

A substantial portion of the Company's business involves installation of
HVAC and/or plumbing systems in newly constructed residences and commercial
buildings. The extent to which the Company is able to maintain or increase
revenues from new installation services in the residential market will depend
on the levels of housing starts from time to time in the geographic markets in
which it operates and likely will reflect the cyclical nature of the housing
industry. The housing industry is affected significantly by changes in general
and local economic conditions, such as employment and income levels, the
availability and cost of financing for home buyers (including the continued
deductibility of mortgage interest in determining federal income tax),
consumer confidence and housing demand. The level of new commercial
installation services is similarly affected by fluctuations in the level of
new construction of commercial buildings in the markets in which the Company
operates, due to local economic conditions, changes in interest rates and
other similar factors. Downturns in the levels of housing starts and/or new
commercial construction could have a material adverse effect on the Company's
business, financial condition and results of operations. See "Management's
Discussion and Analysis of Financial Condition and Results of Operations--
Seasonal and Cyclical Nature of Business."

FLUCTUATION IN QUARTERLY OPERATING RESULTS

The Company's operations are subject to economic cycles and seasonal
variations. General and local economic conditions can cause fluctuations in
demand for the Company's services. Except in the Southeastern and Southwestern
United States, the demand for new installations of HVAC systems can be
substantially lower during the winter months. Demand for HVAC services,
especially in the residential sector, is generally higher in the second and
third calendar quarters. Commercial HVAC maintenance, repair and replacement
service is subject to seasonality as well. The Company expects that its
revenues and operating results generally will be lower in its first and fourth
calendar quarters. The HVAC, plumbing and electrical service industries are
also subject to fluctuations caused by periods of inclement weather. Prolonged
climate or weather conditions may cause unpredictable fluctuations in
operating results. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations--Seasonal and Cyclical Nature of
Business."

AVAILABILITY OF TECHNICIANS

The Company's ability to provide high-quality HVAC, plumbing and electrical
services on a timely basis requires an adequate supply of skilled technicians.
Accordingly, the Company's ability to increase its productivity and
profitability will be limited by its ability to employ, train and retain the
skilled technicians necessary to meet the Company's service requirements. From
time to time, there are shortages of qualified technicians, and there can be
no assurance that the Company will be able to maintain an adequate skilled
labor force necessary to operate efficiently, that the Company's labor
expenses will not increase as a result of a shortage in the supply of skilled
technicians or that the Company will not have to curtail its planned internal

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growth as a result of labor shortages. See "Information Regarding the
Company--Business--Centralized Support Services--Employee Screening, Training
and Development."

RISKS ASSOCIATED WITH DEVELOPMENT, IMPLEMENTATION, AND INTEGRATION OF
OPERATING SYSTEMS AND POLICIES

As a rapidly growing provider of HVAC, plumbing and electrical services, the
Company is faced with the development, implementation and integration of
Company-wide policies and systems related to its operations. The Company plans
to implement and integrate certain information and operating systems and
procedures for the GroupMAC Companies including, but not limited to,
accounting systems, employment and human resources policies, uniform
purchasing programs and certain centralized marketing programs. Each of the
GroupMAC Companies and companies to be acquired in the future may need to
modify certain systems and policies they have utilized historically to
implement the Company's systems and policies. As a result of the Company's
decentralized operating strategy, there can be no assurance that the Company's
operating systems and policies will be successfully implemented at the
subsidiary level or that the Company will be successful in monitoring the
performance of the subsidiaries. The Company may experience delays,
complications and expenses in implementing, integrating and operating such
systems, any of which could have a material adverse effect on the Company's
business, financial condition and results of operations. See "Information
Regarding the Company--Business--Operating Strategy."

FACTORS AFFECTING INTERNAL GROWTH

The Company's ability to increase the revenues of the GroupMAC Companies and
any subsequently acquired company will be affected by various factors,
including demand for HVAC, plumbing and electrical services, the level of new
construction, the Company's ability to expand the range of services offered to
customers of individual GroupMAC Companies and other acquired businesses, the
Company's ability to develop national accounts and other marketing programs in
order to attract new customers and the Company's ability to attract and retain
a sufficient number of qualified technicians and other necessary personnel.
Many of these factors are beyond the control of the Company, and there can be
no assurance that the Company's operating and internal growth strategies will
be successful or that it will be able to generate cash flow adequate for its
operation and to support internal growth. Furthermore, there can be no
assurance that management can integrate acquired companies and reduce overhead
expenses. See "Information Regarding the Company--Business--Operating
Strategy."

DETERMINATION OF IPO PRICE; VALUATION OF ACQUISITIONS

The initial public offering price for the shares of Company Common Stock to
be sold in the IPO will be the basis, in part, for determining the number of
shares of Company Common Stock to be received by holders of MMI Common Stock
in the Merger. This IPO Price will be determined based on negotiations between
the Company and the representatives of the Company's underwriters for the IPO
("Underwriters"), and the factors which will be considered in determining such
price include, in addition to prevailing market conditions, the expected
results of operations of the Company, estimates of the business potential and
earnings prospects of the Company and the economy as a whole. The valuation of
the Company has not been established on a company-by-company basis, and no
third party appraisals of the GroupMAC Companies were obtained by the Company
for purposes of the IPO nor has a fairness opinion been obtained on behalf of
the Company. A valuation of the Company determined solely by appraisal of the
individual GroupMAC Companies would likely result in a different valuation of
the Company than that reflected by the IPO Price. At the assumed initial
public offering price, the aggregate consideration related to the Pre-Offering
and Offering Acquisition Companies would be approximately $204.6 million,
which would consist of $123.7 million in common stock, $19.3 million in
preferred stock (valued at its redemption value of $1.00 per share) and $61.6
million in cash. There can be no assurance that the consideration paid or to
be paid by the Company for the GroupMAC Companies accurately reflects the
value of the assets of these companies or that the percentage of Company
Common Stock owned by the former owners of the GroupMAC Companies reflects the
value of the assets of the GroupMAC Companies.

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PROCEEDS OF IPO PAYABLE FOR EXISTING OBLIGATIONS AND TO AFFILIATES

The Company will use the net proceeds of the IPO to repay indebtedness
incurred to fund the cash portion of the consideration paid to acquire the
Pre-IPO Companies, to redeem warrants and preferred stock issued in connection
with the acquisition of the Pre-IPO Companies, to repay debt assumed and
certain obligations resulting from the acquisition of the GroupMAC Companies
and to fund the cash portion of the consideration to be paid to acquire the
IPO Acquisition Companies. Only a small portion, if any, of the net proceeds
of the IPO will be available to meet the Company's cash requirements following
the closing of the IPO. Some of the warrants and preferred stock redeemed with
the proceeds of the IPO and the stock or assets purchased with the proceeds of
the IPO are beneficially owned by individuals who are or who may become
directors of the Company and/or executive officers of GroupMAC Companies. See
"The Acquisitions" and "Information Regarding the Company--Related Party
Transactions."

COMPETITION

The HVAC, plumbing and electrical service industries are highly competitive
and are served principally by small, owner-operated private companies. Certain
of these smaller competitors have lower overhead cost structures and may be
able to provide their services at lower rates than the Company. The Company
believes the HVAC, plumbing and electrical service industries are subject to
rapid consolidation on both a national and a regional scale. Three companies
have completed initial public offerings, have begun consolidation efforts and
have entered into some of the Company's markets. Other companies, including
unregulated affiliates of electric and gas public utilities and HVAC equipment
manufacturers, may enter the industry. These consolidators and other entrants
may have greater financial resources and name recognition than the Company and
may be willing to pay higher prices than the Company for the same
opportunities. Consequently, the Company may encounter significant competition
in its efforts to achieve its growth objectives. See "Information Regarding
the Company--Business--Competition."

DEPENDENCE ON KEY PERSONNEL

The Company's operations depend on the continuing efforts of its executive
officers and the senior management of the GroupMAC Companies, and the Company
will depend on the senior management of significant businesses it acquires in
the future. The business of the Company could be affected adversely if any of
these persons does not continue in his or her management role with the Company
or an acquired business and the Company is unable to attract and retain
qualified replacements. See "Information Regarding the Company--Business--
Centralized Support Services--Employee Screening, Training and Development"
and "Management."

REGULATION

HVAC systems are subject to various environmental statutes and regulations,
including, but not limited to, (i) laws and regulations implementing the
federal Clean Air Act, as amended (the "Clean Air Act"), relating to minimum
energy efficiency standards of HVAC systems and the production, servicing and
disposal of certain ozone depleting refrigerants used in such systems and (ii)
the Comprehensive Environmental Response, Compensation and Liability Act
("CERCLA"), which can impose strict, joint and several liability on past and
present owners or operators of facilities at, from, or to which a release of
hazardous substances has occurred, on parties who generated hazardous
substances that were released at such facilities and on parties who arranged
for the transportation of hazardous substances to such facilities. In
connection with its entry into new markets, the Company may become subject to
compliance with additional regulations, and there can be no assurance that the
regulatory environment in which the Company operates will not change
significantly in the future. Various local, state and federal laws and
regulations, including, but not limited to, laws and regulations implementing
the Clean Air Act impose licensing standards on technicians who service
heating and air conditioning units. While the installers and technicians
employed by the Company are duly certified by applicable local, state and
federal agencies and have been able to meet or exceed such standards to date,
there can be no assurance that they will be able to meet future standards. In
some states, warranties provided for in the Company's service agreements

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<PAGE>

may be deemed insurance contracts by applicable state insurance regulatory
agencies thereby subjecting the Company and the service agreements to the
insurance laws and regulations of such state. See "Information Regarding the
Company--Business--Governmental Regulation and Environmental Matters."

CONTROL BY EXISTING MANAGEMENT AND STOCKHOLDERS

Upon the closing of the IPO, the executive officers, directors and certain
founding shareholders of the Company will beneficially own in the aggregate
approximately 28.2% of the outstanding Company Common Stock. Accordingly, such
persons will have substantial influence on the Company, which influence might
not be consistent with the interests of other shareholders, and on the outcome
of any matters submitted to the Company's shareholders for approval. In
addition, although there is no current agreement, understanding or arrangement
for these shareholders to act together on any matter, these shareholders may
have economic and business reasons to act together, and would be in a position
to execute significant influence over the affairs of the Company if they were
to act together in the future. If these persons were to act in concert, they
might, as a practical matter, be able to exercise control over the Company's
affairs, including the election of the entire Board of Directors and (subject
to Article Thirteen of the Texas Business Corporation Act (the "TBCA") which
applies to transactions between the Company and certain interested persons)
any matter submitted to a vote of shareholders. See "Information Regarding the
Company--Security Ownership of Certain Beneficial Owners and Management."

POTENTIAL EFFECT OF SHARES ELIGIBLE FOR FUTURE SALE ON PRICE OF COMPANY COMMON
STOCK

Upon the closing of the IPO, 19,961,706 shares of Company Common Stock will
be outstanding. The 643,064 shares to be issued in connection with the Merger
(assuming an IPO Price of $14.00 per share) and the 7,500,000 shares to be
sold in the IPO (other than shares that may be purchased by affiliates of the
Company) will be freely tradable. The remaining shares outstanding may be
resold publicly only following their effective registration under the
Securities Act of 1933, as amended (the "Securities Act") or pursuant to an
available exemption (such as provided by Rule 144 following a holding period
for previously unregistered shares) from the registration requirements of the
Securities Act. The holders of 3,575,586 shares of Common Stock have the right
(subject to minimum participation requirements) to require the Company to
register such shares pursuant to the Securities Act for the purpose of
allowing them to effect a public offering of all or a portion of such shares
(a "Demand Registration"), and such holders and substantially all of the other
holders of Common Stock outstanding on the date hereof also have the right to
require the Company to register their shares of Common Stock under the
Securities Act in connection with a public offering of Common Stock
contemplated by the Company (a "Piggyback Registration"). The number of Demand
Registrations that may be requested is limited, and the Company will not be
obligated to effect a Demand Registration within 60 days prior to the proposed
filing date of a registration statement relating to an offering by the Company
of its securities (with certain exceptions) or within 120 days after the
effective date of such a registration statement. Further, the Company may
delay a Demand Registration for up to 120 days if the Company determines that
such registration would be detrimental to the Company. In connection with a
Piggyback Registration involving an underwritten offering, the number of
shares to be registered by selling shareholders may be limited or eliminated
entirely if the managing underwriter determines marketing factors require a
limitation on the number of shares to be underwritten. The holders of Demand
Registration rights have agreed with the Company and the Underwriters not to
exercise their respective demand right for the two year period following the
offering except for Gordon A. Cain who has agreed not to exercise his demand
rights for one year. In addition, such holders and the holders of Common Stock
issued in connection with the acquisition of the GroupMAC Companies have
agreed with the Company that they generally will not sell, transfer or
otherwise dispose of any of their shares for one year following the date of
acquisition of such shares and for one additional year will limit sales to no
more than 36% of their holdings. Sales made pursuant to Rule 144 must comply
with its applicable volume limitations and other requirements. Commencing
October 24, 1997, 1,211,200 "restricted" shares of Common Stock will be
eligible for resale pursuant to Rule 144, subject to the volume, manner of
sale and other limitations thereof. The remaining "restricted" shares will
become eligible for resale pursuant to Rule 144 from time to time thereafter.

Upon the closing of the IPO, the Company also will have outstanding options
and warrants to purchase up to a total of 2,964,995 shares of Company Common
Stock, of which only warrants and options to purchase 709,994 shares will be
exercisable immediately after the closing of the IPO. The Company intends to
register all the shares subject to these options and warrants under the
Securities Act for public resale.

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<PAGE>

The Company intends to continue to acquire companies using Company Common
Stock as part of the consideration. Accordingly, the Company intends to
register 7,000,000 additional shares of Company Common Stock under the
Securities Act during the fourth quarter of 1997 for its use in connection
with future acquisitions. These shares generally will be freely tradable after
their issuance by persons not affiliated with the Company unless the Company
contractually restricts their resale.

The effect, if any, of the availability for sale, or sale, of the shares of
Company Common Stock eligible for future sale on the market price of the
Company Common Stock prevailing from time to time is unpredictable, and no
assurance can be given that the effect will not be adverse.

RESTRICTIONS ON DIVIDENDS; DEPENDENCE ON SUBSIDIARIES

The Company will conduct its operations through subsidiaries, including
substantially all of the Pre-IPO Companies and the IPO Acquisition Companies,
and is therefore dependent upon the cash flow of and the transfer of funds by
those subsidiaries to the Company in the form of loans, dividends or otherwise
to meet its financial obligations. Each GroupMAC Company and any future
subsidiary of the Company will be distinct legal entities and will have no
obligation, contingent or otherwise, to transfer funds to the Company. The
Company's ability to pay dividends on the Company Common Stock is restricted
by the terms of the $75 million bank credit facility (the "Bank Credit
Agreement") and could be restricted by the terms of subsequent financings and
subsequent series of preferred stock that may be issued in future
transactions. See "Description of Company Capital Stock" and "Description of
Company Capital Stock--Company Common Stock." Additionally, the ability of the
GroupMAC Companies to pay dividends to the Company is limited by the terms of
the Bank Credit Agreement. See "Description of Bank Credit Agreement."

NO MARKET; POSSIBLE VOLATILITY OF STOCK PRICE

There presently exists no public market for the Company Common Stock, and
the IPO Price of the shares to be sold in the IPO, which will be determined by
negotiation between the Company and representatives of the Underwriters, may
not be indicative of the price at which the Company Common Stock will trade
after the IPO. The Company Common Stock has been approved for listing on the
NYSE, subject to official notice of issuance, but no assurance can be given
that an active trading market for the Company Common Stock will develop or, if
it developed, that it will continue after the IPO. The market price of the
Company Common Stock after the IPO may be subject to significant fluctuations
from time to time in response to numerous factors, including variations in the
reported financial results of the Company and changing conditions in the
economy in general or in the Company's industry in particular. In addition,
stock markets generally experience significant price and volume volatility
from time to time which may affect the market price of the Company Common
Stock for reasons unrelated to the Company's performance.

POTENTIAL ANTI-TAKEOVER EFFECTS

Provisions of the Company's Articles of Incorporation and Bylaws and the
TBCA may have the effect of delaying, discouraging, inhibiting, preventing or
rendering more difficult an attempt to obtain control of the Company by means
of a tender offer, business combination, proxy contest or otherwise. These
provisions include the authorization in the Company's Articles of
Incorporation of preferred stock having such preferences, powers and relative,
participating, optional and other rights (including preferences over the
Company Common Stock respecting dividends, distributions and voting rights) as
the Board of Directors may determine, classification of the Board of
Directors, a TBCA restriction on the ability of shareholders to take actions
by written consent and a TBCA provision imposing restrictions on business
combinations with certain interested parties. See "Description of Company
Capital Stock."

CERTAIN FEDERAL INCOME TAX CONSIDERATIONS

Neither the Company nor MMI has requested or will request any ruling from
the Internal Revenue Service in connection with the Merger. Although the
Merger has been structured with the intention that it qualify as a

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<PAGE>

reorganization under Section 368(a) of the Code, qualification of the Merger
as a reorganization depends on compliance with certain technical requirements
of federal income tax law. If any such requirements are not satisfied, the
Merger will not be treated as a reorganization and material adverse tax
consequences will result to MMI and some or all of the holders of MMI Common
Stock. If the Merger is treated as a reorganization under Section 368(a) of
the Code, generally those persons who hold MMI Common Stock as capital assets
will recognize gain, but not loss, equal to the lesser of (1) the gain
realized or (2) the cash portion of the consideration received in the Merger.
The gain realized equals the fair market value of the consideration received
in the Merger minus the adjusted basis of the holder's MMI Common Stock
transferred in the Merger. If the Merger is treated as a taxable transaction,
generally those persons who hold MMI Common Stock as capital assets will
recognize capital gain or loss equal to the fair market value of the
consideration received in the Merger minus the adjusted basis of the holder's
MMI Common Stock transferred in the Merger. See "The Merger--Certain Federal
Income Tax Considerations."

DIFFERENT SHAREHOLDER RIGHTS

The Company is incorporated under the laws of the State of Texas. MMI is
incorporated under the laws of the State of Washington. If the Merger is
consummated, the MMI shareholders will become shareholders of the Company. As
shareholders of a Texas corporation, their rights will differ in certain
respects from those of shareholders of a Washington corporation. See
"Comparison of the Rights of Holders of the Company Common Stock and MMI
Common Stock."

UNCERTAINTY CONCERNING COST SAVINGS

The Company believes that the Merger will involve some cost savings. Upon
consummation of the Merger, the Company will seek to achieve these cost
savings, including any such savings arising from the integration of systems
and procedures and the increased bargaining power of a larger company. While
the Company will work diligently to achieve these goals, there can be no
assurance that any substantial cost savings will be achieved as a result of
the Merger.

ASSET ENCUMBRANCE

The obligations of the Company under the Bank Credit Agreement are secured
by a first priority security interest on the accounts receivable and inventory
of the Company and its material subsidiaries and all the capital stock of its
domestic subsidiaries. In addition, borrowings under the Bank Credit Agreement
will be guaranteed by the material GroupMAC Companies, and any future material
subsidiaries. If the Company becomes insolvent or is liquidated, or if there
were a breach of the restrictions in the Bank Credit Agreement so as to result
in a default thereunder, or if the Company were unable to repay its borrowings
thereunder, lenders under the Bank Credit Agreement could declare all amounts
outstanding thereunder to be due and payable and the obligations of the
lenders to make further extensions of credit could be terminated. The lenders
under the Bank Credit Agreement also would be entitled to proceed against the
collateral securing such indebtedness. Accordingly, such lenders would have a
prior claim on certain assets of the Company and its subsidiaries. See
"Description of Bank Credit Agreement."

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<PAGE>

THE MMI SPECIAL MEETING

TIME, PLACE AND DATE

The MMI Special Meeting will be held at 4:00 p.m., local time, on Monday,
November 10, 1997, in the Service Training Room located at the offices of MMI,
7717 Detroit Ave. S.W., Seattle, Washington 98106.

PURPOSE

At the MMI Special Meeting, shareholders of MMI will be asked to consider
and vote upon a proposal to adopt and approve the Merger Agreement and the
transactions contemplated thereby, including the Merger. A copy of the Merger
Agreement is attached to this Proxy Statement/Prospectus as Annex A.

RECORD DATE; VOTING RIGHTS

Shareholders of record at the close of business on the Record Date, will be
entitled to notice of and to vote at the MMI Special Meeting and at any
adjournment or postponement thereof. There were issued and outstanding 113,025
shares of MMI Common Stock as of the Record Date, held by approximately 213
shareholders of record.

Under the WBCA, the adoption and approval of the Merger Agreement by the
shareholders requires the affirmative vote of the holders of at least two-
thirds of the outstanding shares of MMI Common Stock. As of the Record Date,
65,983 shares of MMI Common Stock (approximately 58.4% of the shares
outstanding as of the Record Date) were outstanding and entitled to be voted
by the directors and executive officers, and their affiliates, of MMI.

The MacDonald-Miller Industries, Inc. Employee Stock Ownership Plan (the
"ESOP") is the holder of 56,937 shares of MMI Common Stock (approximately
50.4% of the outstanding MMI Common Stock); however, each participant in the
ESOP has the right to direct the voting of the shares attributable to the
accounts of such participant. Consequently, the Trustees of the ESOP will vote
the shares held by it only in accordance with directions received from the
participants in the ESOP.

The Principal Shareholders and Larry D. Boyer, Jack D. Cheetham, Michael D.
Gooden, Derrick R. Simonds, Robert A. Willis, Peter J. DeLaurenti, Stephen D.
Johnson, David E. McArdle, John B. Rozell and Mark D. Housman, have entered
into a Voting and Instruction Agreement with the Company, pursuant to which
such shareholders have agreed to vote their MMI Common Stock, or to cause
their shares of MMI Common Stock to be voted, in favor of the Merger. See "The
Merger--Agreement to Vote." These shareholders beneficially owned as of the
Record Date an aggregate of 75,601 shares of MMI Common Stock, constituting
approximately 66.9% of the shares of MMI Common Stock outstanding on the
Record Date. When these shares of MMI Common Stock are voted at the MMI
Special Meeting in favor of the adoption and approval of the Merger Agreement
and the transactions contemplated thereby, including the Merger, the
affirmative vote of additional shares of MMI Common Stock will not be required
to so adopt and approve the Merger Agreement and the transactions contemplated
thereby, including the Merger.

Holders of a majority of the shares entitled to vote at the MMI Special
Meeting, represented in person or by proxy, will constitute a quorum. Each
holder will be entitled to cast one vote for each share of MMI Common Stock
held.

PROXIES, REVOCATION OF PROXIES

Shares of MMI Common Stock represented by properly executed and unrevoked
proxies will be voted at the MMI Special Meeting in accordance with the
directions contained therein. If no direction is made in a properly executed
and unrevoked proxy, the shares of MMI Common Stock represented by such proxy
will be voted FOR the adoption and approval of the Merger Agreement, and the
transactions contemplated thereby. Any MMI shareholder is empowered to revoke
a proxy (except for the proxy contemplated in the Voting and Instruction
Agreement) at any time before its exercise. A proxy (except for the proxy
contemplated in the Voting

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<PAGE>

and Instruction Agreement) may be revoked by filing with the Secretary of MMI
a written revocation or a duly executed proxy bearing a later date. Any
written notice revoking a proxy should be sent to: MacDonald-Miller
Industries, Inc., 7717 Detroit Ave. S.W., Seattle, Washington 98106,
Attention: Secretary, hand delivered to the Secretary or sent to the Secretary
toll-free by facsimile to 1-888-329-4175, in all cases so as to be received
before the taking of the vote at the MMI Special Meeting. Any MMI shareholder
may attend the MMI Special Meeting and vote in person, whether or not he has
previously given a proxy.

MMI will bear the costs of soliciting proxies from MMI shareholders. In
addition to soliciting proxies by mail, directors, officers and employees of
MMI may solicit proxies by telephone, by courier service, by telegram or in
person, each without receiving additional compensation therefor. Arrangements
will also be made with brokerage firms and other custodians, nominees and
fiduciaries (collectively, "Fiduciaries") to forward solicitation materials to
the beneficial owners of shares of MMI Common Stock held of record by such
persons, and arrangements may be made with Fiduciaries to obtain authority to
sign proxies. MMI will reimburse such Fiduciaries for reasonable out-of-pocket
expenses incurred by them in connection therewith.

Shares represented at the meetings but not voted for or against a proposal,
such as abstentions or "broker non-votes," will be counted in determining a
quorum and will have the same effect as votes against the proposal. A "broker
non-vote" refers to shares represented at the MMI Special Meeting in person or
by proxy by a broker or nominee where such broker or nominee (i) has not
received voting instructions on a particular matter from the beneficial owners
or persons entitled to vote and (ii) does not have discretionary voting power
on such matter.

MMI SHAREHOLDERS SHOULD NOT SEND ANY STOCK CERTIFICATES WITH THEIR PROXY CARDS

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THE MERGER

GENERAL

The Merger Agreement provides for a business combination between the Company
and MMI in which MMI will be merged with and into a wholly owned subsidiary of
the Company, and the holders of MMI Common Stock would be issued shares of
Company Common Stock. Following the Merger, the surviving corporation will
change its name to "MacDonald-Miller Industries, Inc." and will be a wholly
owned subsidiary of the Company. The discussion in this Proxy
Statement/Prospectus of the Merger and the description of the principal terms
of the Merger are subject to and qualified in their entirety by reference to
the Merger Agreement, a copy of which is attached to this Proxy
Statement/Prospectus as Annex A.

EFFECTIVE TIME

If the Merger Agreement and the transactions contemplated thereby are
approved and adopted by the requisite vote of the shareholders of MMI and the
other conditions to the Merger are satisfied or waived (if permissible), the
Merger will be consummated and effected (the "Effective Time") at the time
Articles of Merger are filed with the Secretary of State of Washington or at
such later time as the parties to the Merger Agreement agree and specify in
such Articles of Merger. The Merger Agreement provides that the Company and
MMI will cause the Effective Time of the Merger to occur as promptly as
practicable following the satisfaction or, if permissible, waiver of all the
conditions set forth in the Merger Agreement. The Merger Agreement may be
terminated prior to the Effective Time by either the Company or MMI in certain
circumstances, whether before or after approval and adoption of the Merger by
the shareholders of MMI. See "The Merger Agreement--Termination; Amendment."

TERMS OF THE MERGER

If the Merger is approved and consummated, then at the Effective Time MMI
will be merged with and into Merger Sub, which will be the surviving
corporation. In the Merger, each share of MMI Common Stock outstanding at the
Effective Time (other than shares of MMI Common Stock held in MMI's treasury
or owned by any subsidiary of MMI) will be converted into the right to receive
(i) cash and (ii) shares of Company Common Stock (collectively, the "Merger
Consideration"). The Merger Consideration will be paid 40% in cash and 60% in
stock. In the aggregate, the Merger Consideration will be equal to $16,000,000
subject to adjustments based on working capital, long-term debt and certain
reductions in MMI expenses ("Total Consideration"), all as of the last day of
the month immediately preceding the Effective Time. The cash consideration to
be paid for one share of MMI Common Stock will be determined by multiplying
the Total Consideration by 40% and dividing the result by the number of shares
of MMI Common Stock to be outstanding immediately prior to the Effective Time
("Outstanding MMI Common Stock Number"). The number of shares of Company
Common Stock to be exchanged for one share of MMI Common Stock will be
determined by multiplying the Total Consideration by 60% and dividing the
result by the IPO Price, as set forth in an executed underwriting agreement
between the Company and its underwriters, and the number of shares of Company
Common Stock equal to the resulting number will be divided by the Outstanding
MMI Common Stock Number. In addition, the holders of MMI Common Stock as of
the Effective Time will be entitled to additional consideration of two times
the excess, if any, of EBITDA over $2,613,012.80. Such additional
consideration, if any, will be payable on or before April 30, 1998, and will
be apportioned between cash and Company Common Stock in the same ratio as in
the Merger. See "The Merger Agreement--Exchange of Share Certificates."

The Total Consideration will be determined based upon the balance sheet of
MMI as of the last day of the month immediately preceding the month in which
the closing of the Merger occurs (if such closing occurs on or after the 16th
day of the month), or the last day of the month next preceding the month
immediately preceding the month in which the closing of the Merger occurs (if
such closing occurs prior to the 16th day of the month). On a pro forma basis,
assuming the applicable balance sheet date was June 30, 1997, the Total
Consideration would have been $15,004,826 and the Outstanding MMI Common Stock
Number would have been 139,140

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<PAGE>

shares, assuming exercise of all exercisable options immediately prior to the
Merger. The Merger Consideration payable per share of MMI Common Stock would
have been approximately $43.14 in cash and, based upon an estimated IPO Price
of $14.00 per share, 4.6217 shares of Company Common Stock (subject to the
receipt of cash in lieu of any fractional shares of Company Common Stock), for
a total Merger Consideration of approximately $107.84 per share.

MMI shareholders should consider that there is presently no market for the
shares of Company Common Stock and the IPO Price will be determined based upon
negotiations between the Company and representatives of the Underwriters. See
"Risk Factors--Determination of IPO Price; Valuation of Acquisitions." In
addition, following completion of the IPO, there can be no assurance as to the
market price of the Company Common Stock and the market value of the Company
Common Stock that holders of MMI Common Stock will receive in the Merger may
increase or decrease following the Merger.

BACKGROUND OF THE MERGER

In early 1997, the MMI Board observed three trends in the competitive makeup
of the industry: (i) the continuing push by national and international
equipment and parts manufacturers (e.g. Trane, Carrier, Johnson Controls,
Honeywell, and others) into the market traditionally served by local/regional
HVAC contractors and service organizations; (ii) the acquisition of HVAC
contractors and service organizations by companies in or related to the
business of providing energy (e.g. electricity, gas and/or energy management
service companies); and (iii) the recent combining or consolidation of HVAC
contractors and service organizations into larger companies. At the time of
such observation, the MMI Board was aware of American Residential Services,
Inc. ("ARS") and Service Experts, Inc. ("Service Experts"), which were
publicly traded, Comfort Systems USA, Inc. ("Comfort Systems") and the
Company, which were preparing to become publicly traded, and Callahan Roach,
which was investigating the possibility of becoming publicly traded.

The MMI Board also observed changes taking place in the customer
environment, particularly in its HVAC service and maintenance business.
National chain accounts were continuing to make up a larger share of available
business opportunities, and consolidation activity was continuing at a high
level in the banking and property management industries, both trends resulting
in emphasis on centralized purchasing of services provided by MMI. Such
centralization of purchasing decision making was putting or potentially could
put current as well as potential MMI local and regional customer relationships
at risk.

In light of the aforementioned issues and with respect to the MMI Board's
ongoing effort to assure continuity of its business and its responsibility to
enhance shareholder value, the MMI Board made a decision in February 1997, to
actively investigate the possibilities presented by the then present active
consolidators. Representatives of the MMI Board attended the Air Conditioning
Contractors of America (ACCA) convention in Los Angeles, California and heard
presentations by and met with representatives of the Company, ARS and Comfort
Systems. There were no specifics pursued at that convention, but the MMI Board
believed that there was likely an opportunity for MMI in the industry
consolidation activity. Most certainly there was interest expressed by such
consolidators in MMI's HVAC service and maintenance business, with lesser
interest expressed in the larger HVAC construction component. Also in February
1997, representatives of the Company made a presentation to the Board of
Directors of USA in Chicago, Illinois. MMI had a minority ownership interest
in USA and representatives of the MMI Board were in attendance.

In an effort to become more knowledgeable about the consolidation process,
two members of the MMI Board, Fredric J. Sigmund and Charles H. Orton,
attended an education seminar sponsored by Fails Management Institute in
Denver, Colorado in mid-March 1997. It was, again, reported to the MMI Board
that there was a level of activity in industry consolidation that could
present significant opportunity for both MMI and its shareholders. In late
March 1997, the MMI Board arranged for a meeting with Al Roach, principal of
Callahan Roach, to further discuss industry consolidation and specifics
concerning each of the known consolidators. After considering information
about the various consolidators, the MMI Board decided at that mid-March 1997

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<PAGE>

meeting to have Mr. Roach arrange for an introduction of the MMI Board to the
Company. This decision was based upon: (i) the exposure representatives of the
MMI Board had to personnel from the Company, as well as ARS, Service Experts
and Comfort Systems; (ii) the timing of the MMI Board's investigation which
precluded actively pursuing Comfort Systems which was in its "quiet period;"
and (iii) the desire of the MMI Board to maximize potential returns as a
"founding company" in an organization that had not yet filed a registration
statement because, based on information the MMI Board learned during its
investigation of the consolidation trend, it was the MMI Board's belief that
the earnings multiple paid for pre-public offering acquisitions by the
consolidators was most often higher than the multiple paid in post-public
offering acquisitions. While a price for MMI had not been presented by any of
the consolidators, the range of multiples appeared to be from 6-7 times EBITDA
for founding-type companies, and in the range of 4-5 times EBITDA for post-
public offering acquisitions.

After approximately two months of studying the process involved in
consolidation and the general makeup of the then current participants, early-
April 1997 marked the beginning of a series of meetings between the MMI Board
and officers of the Company.

On April 4, 1997, a meeting was held in the Seattle, Washington offices of
MMI between representatives of the Company and the senior officers of MMI to
discuss MMI's interest in a potential merger transaction. These discussions
led to the Company's receipt and review of financial information and other
data concerning MMI and a subsequent meeting in Houston, Texas on May 22,
1997, at which a formal merger proposal was presented by the Company to three
members of the MMI Board, Fredric J. Sigmund, James MacDonald and Steven C.
Lovely. At that meeting, agreement was reached on the manner in which MMI and
the Company would control the risks, real and perceived, attendant to the new
construction component of MMI's commercial construction operations. MMI
focused its business around a balance of commercial new construction and
special services, including engineering services, tenant improvements,
retrofits, remodels, service and maintenance. A critical element of MMI's
business development is the continuing flow of new construction projects that
to a large degree feed the other components of its business, and which in turn
through development of long term client relationships, feed the new
construction activity. The merging of the MMI business process with the
Company was recognized as both an opportunity and a risk. Some companies
focused on the new HVAC/mechanical construction industry have struggled to
attain levels of performance necessary to attract and retain investor
interest. In part, that can be attributed to normal business cycles in the
domestic construction industry. At the same time, it can be partially
attributed to seeking and attaining growth through added volume, which
generally is accompanied by additional risk, or at least higher probability of
variances in operating performance. While MMI is not immune to industry
business cycles, it has developed a base of business, approximately 40 percent
of its total revenues, that are derived from special services related to the
new construction business, but not solely dependent thereon. MMI and the
Company agreed that the new construction component was necessary to the future
growth of service, maintenance and the other special services, but that a
process would be put in place that would involve a joint review of projects
with an estimated value in excess of 5 percent of MMI's preceding year's
revenues, so that there would be a continuing balance of new construction
versus special services within MMI, and so that the Company's shareholders
would not be unreasonably exposed to the risks associated with the new
construction market place. Negotiations continued over the next two weeks,
leading to a signed letter of intent of June 4, 1997. The Company then
conducted more intensive due diligence on the financial condition and
operations of MMI.

On June 23, 1997, the Company's legal counsel hand delivered a draft of the
Merger Agreement and exhibits to the senior officers of MMI and the MMI Board.
Following such delivery, the Company and the Company's legal counsel continued
their due diligence review of MMI.

Senior officers of the Company and MMI and each company's legal counsel held
numerous discussions regarding the drafts of the Merger Agreement and
exhibits. On August 15, 1997, the MMI Board approved the Merger and the Merger
Agreement. On August 16, 1997, the Company's Board of Directors and the Merger
Sub's Board of Directors and sole shareholder approved the Merger and the
Merger Agreement. The Merger Agreement was executed on August 18, 1997.

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<PAGE>

After the MMI Board began negotiating with the Company, it did not pursue,
nor seek out the existence of, other opportunities with other consolidators,
national equipment and parts manufacturers, or energy companies. It was the
assessment of the MMI Board that the respective business objectives and
cultures of MMI and the Company represented a "best case partnership" and that
the pursuit of other opportunities, while perhaps leading to a marginally
improved short term financial opportunity for MMI shareholders, would, of
necessity, delay a final decision in regard to the proposed merger with the
Company, and would most likely close the door on that merger and the potential
benefits of participating as a founding company in the Company's intended IPO.

In addition to the financial considerations, the MMI Board was continually
impressed by the Company's organization, including its officers, staff and the
organizations that the Company had acquired or would acquire contemporaneously
with the planned IPO. The MMI Board viewed the established corporate
leadership at the Company as a critical element in the merger decision and to
the continuing growth and success of MMI.

MMI'S REASONS FOR THE MERGER; RECOMMENDATIONS OF THE MMI BOARD OF DIRECTORS

The MMI Board had developed a strategic plan to build aggressively the
service, maintenance, retrofit and remodeling aspects of its business
(collectively, "Specialty Services"), so that the balance between its new
construction business ("New Construction") and these Specialty Services would
be approximately equal. The manner in which this balance is achieved is
through planned aggressive growth in the Special Services business and by
market driven growth in the New Construction business. The MMI Board believes
that such a balance provides stability to MMI's operations and that it allows
MMI to control the risks most often attributed to New Construction. Such risk
takes on two forms: financing risk and execution risk, each related directly
to the ease with which new construction volume can be increased through the
bidding process. While obtaining higher volumes of New Construction can be
driven by lowering prices, such lower prices generally result in lower
realizable margins and higher risk associated with that incremental volume.
The financing risk surfaces in the form of an organization's financial
resources (e.g. equity, working capital, trade credit, bank credit and surety
credit) being inadequate to finance a higher level of volume that is
reasonably easy to attain in the price driven New Construction bid market. The
execution risk can also be described as operating risk, and is centered on an
organization's capacity to execute the incremental volume with limited human
and productive resources.

While MMI has demonstrated a steady and successful growth rate, it has
become increasingly apparent that to continue its growth in the Special
Services arena at a rate that will match or keep pace with the opportunities
available in the very active Northwest New Construction market over the next
few years will require a measure of external growth through acquisition as
well as internal growth. The proposed Merger with the Company will provide the
resources and a platform for that external growth in the Special Services
arena. The focus on growth in that part of MMI's business is not intended to
downplay or disregard the opportunities for growth in the New Construction
portion of MMI's business, rather it is intended to promote the aforementioned
balance in MMI's business such that the risks generally attributed to the New
Construction business are controlled.

The MMI Board views the Merger with the Company as presenting an option for
external growth through acquisitions in the Specialty Services portion of its
business. Such options are presented due to the size of the Company, its
available financial resources and the attractiveness to potential acquirees in
becoming part of a company with a national as well as regional presence, and
publicly traded stock. MMI, in concert with the Company, will seek acquisition
opportunities to expand the Special Services part of its business,
particularly in the area of commercial service and maintenance. The type of
potential acquisitions will include: (i) relatively small companies that will
be "tucked in" to MMI's operations; (ii) companies of moderate size that will
maintain a significant market independence, but will be part of MMI's
responsibility as the Company's "platform company" in the Northwest HVAC
business; and (iii) larger companies that may, because of product focus (e.g.
electrical), may become part of the Company, but independent of MMI other than
having the underlying corporate relationship. In addition, the MMI Board
believed that by being one of the initial merger parties to form the GroupMAC
Companies, MMI could be in a position to influence the future direction and
operations of the Company.

27
<PAGE>

Another factor considered by the MMI Board was the realizable gain to the
MMI shareholders presented by the proposed Merger with the Company. The recent
valuation as of December 31, 1996, of the MMI Common Stock which was obtained
from an independent third party for purposes of the ESOP, was $42.05 per
share. If the Merger was consummated based upon MMI's balance sheet as of June
30, 1997, and assuming all outstanding options are exercised immediately prior
to the Merger, the total consideration to be received by the holders of MMI
Common Stock would be approximately $107.84 per share, or a premium of
approximately 157% over the most recent valuation amount. Such amount does not
include any additional consideration that may result from operating income and
an improved MMI balance sheet as of the Effective Date or the potential
additional consideration described in "The Merger--Terms of the Merger."

The MMI Board of Directors believes that the combination of the Company and
MMI will benefit MMI's shareholders by providing a consideration substantially
in excess of prior valuations of MMI Common Stock and a continuing interest in
a larger company. The material reasons for the MMI Board authorizing the
Merger are the following:

1. The Company is paying a significant premium over the most recent
valuation of MMI Common Stock. In addition, there is a potential benefit to
the MMI Shareholders due to the registration and liquidity of the Common
Stock.

2. Consolidation is occurring within the industry. The increased size,
financial strength and product and geographic diversification of the
Company will help MMI maintain a strong and growing market position and the
ability to provide large regional and national clients with a combination
of services from a single organization.

3. The Merger will increase MMI's opportunity for expansion in the
Northwest through acquisitions by the Company of complementary operations,
particularly companies engaged in Specialty Services.

4. The Merger provides MMI with greater access to capital for its growth
and provides liquidity for its business.

5. MMI will have access to, and be part of, the larger group of the
Company's contracting and service companies that will promote development
and implementation of industry "best practices" directed to improving the
performance of each operation, including MMI.

6. As part of a larger organization, MMI's personnel will have
opportunities for personal and professional growth in terms of education,
professional development and career advancement.

7. MMI will have access to more sophisticated business consulting and
planning resources.

8. The Merger will result in administrative efficiencies and cost savings
by eliminating certain overlapping expenses.

In addition to the issues favoring the Merger, the MMI Board undertook to
review the negative issues, as well. There were two specific issues that
attracted the attention of the MMI Board. First, there is the actual and
perceived "loss of independence" that accompanies becoming part of a larger
organization. While there is no question that becoming part of a large
organization takes away some independence and in some cases the flexibility of
local decision making, MMI had already begun an organizational evolution that
involves a large group of employees as shareholders and in the decision making
process in concert with MMI's executives. The MMI Board believes that the
positive aspects associated with becoming part of a large organization
outlined above, such as increased financial strength, product diversification
and opportunity for expansion, outweigh the perceived "loss of independence."

The second negative issue reviewed by the MMI Board was whether the Company
would be able to positively deal with a cyclical downturn in MMI's New
Construction business. The MMI Board is confident that the Company and MMI
have established a very clear set of New Construction parameters under which
both organizations will be able to operate into the foreseeable future, and
will promote the prosperity of New Construction in MMI and the Company as a
whole.

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<PAGE>

After taking into consideration all of the factors set forth above, the MMI
Board determined that the Merger was in the best interests of MMI and its
shareholders, and that MMI should proceed with the Merger at this time. The
potential individual interests of the officers and directors of MMI and the
Company, except for their interests as shareholders, were not considered by
the MMI Board in making this determination.

THE MMI BOARD OF DIRECTORS BELIEVES THAT THE MERGER IS FAIR TO AND IN THE
BEST INTERESTS OF MMI AND ITS SHAREHOLDERS. ACCORDINGLY, THE MMI BOARD OF
DIRECTORS HAS APPROVED THE MERGER AGREEMENT AND UNANIMOUSLY RECOMMENDS THAT
THE HOLDERS OF MMI COMMON STOCK VOTE FOR THE APPROVAL OF THE MERGER.

OPINION OF MMI'S FINANCIAL ADVISOR

MMI has engaged Business Advisory to render an opinion to the MMI Board of
Directors as to the fairness, from a financial point of view, to the holders
of the common stock of MMI of the consideration to be paid by the Company in
the Merger. Business Advisory is an independent professional services firm
providing business valuation, economic analysis and financial advisory
services, specializing in the appraisal and valuation of closely held
businesses. Business Advisory has extensive experience in the valuation of
business enterprises, fractional business interests, business equity,
intangible assets and debt securities. It provides fairness opinions in merger
and acquisition transactions, provides financial advice to buyers and sellers
of businesses, and provides valuations as to the fair market value of
securities for transactions, gift and estate tax purposes, recapitalizations
and ERISA compliance.

On August 19, 1997, Business Advisory delivered to the Board of Directors of
MMI a written opinion (the "Fairness Opinion") to the effect that as of the
date of the opinion and based upon the factors and assumptions stated therein,
that the consideration to be received by the holders of MMI Common Stock in
the Merger will be fair, from a financial point of view.

THE SUMMARY OF THE FAIRNESS OPINION SET FORTH IN THIS PROXY
STATEMENT/PROSPECTUS IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE FULL
TEXT OF SUCH OPINION, A COPY OF WHICH IS ATTACHED HERETO AS APPENDIX B.
HOLDERS OF MMI COMMON STOCK ARE URGED TO READ THE FAIRNESS OPINION IN ITS
ENTIRETY FOR FURTHER INFORMATION AS TO THE ASSUMPTIONS MADE, MATTERS
CONSIDERED AND OTHER ASPECTS OF THE REVIEW BY BUSINESS ADVISORY.

Business Advisory did not, and was not requested by the MMI Board to, make
any recommendations as to the form or amount of consideration to be paid to
the MMI shareholders in the Merger, which issues were resolved in arm's length
negotiations between MMI and the Company. Business Advisory did not
participate in these negotiations. Furthermore, Business Advisory was not
requested to, and did not, solicit third party indications of interest in
acquiring all or any part of MMI or investigate any alternative transactions
which might be available to MMI. No limitations were imposed by MMI on
Business Advisory with respect to the investigations made by Business Advisory
in arriving at its opinion.

In arriving at its opinion, Business Advisory (i) reviewed the letter of
intent dated June 3, 1997 between the Company and MMI and drafts of the Merger
Agreement and related documents, (ii) reviewed certain audited and unaudited
financial statements and business information relating to MMI, (iii) conducted
discussions with members of the senior management of MMI regarding financial
performance, current business operations and future prospects, and (iv)
reviewed public information with respect to certain other companies in lines
of business deemed to be generally comparable in whole or in part to the
businesses of MMI on both a control and minority interest basis. In addition
to the foregoing, Business Advisory reviewed such other financial studies and
analyses, has performed such other investigations and has taken into account
such other matters as Business Advisory deemed necessary and appropriate.

Business Advisory did not attribute any particular weight to any analysis or
factor considered by it, but rather made qualitative judgments as to the
significance and relevance of each analysis and factor. Business Advisory did
not form a conclusion as to whether any individual analysis or factor,
considered in isolation,

29
<PAGE>

supported or failed to support an opinion as to fairness. Rather, in reaching
its conclusion, Business Advisory considered the results of the analyses in
light of each other and ultimately reached its opinion based upon the results
of all analyses taken as a whole.

Accordingly, notwithstanding the separate factors summarized below, Business
Advisory believes that its analyses must be considered as a whole and that
selecting portions of its analyses without considering all analyses and
factors may create an incomplete view of the processes underlying its opinion.
In its analyses, Business Advisory made numerous assumptions with respect to
industry performance, business, economic, market and other matters. The
assumptions and estimates contained in Business Advisory's analyses are not
necessarily indicative of actual values or predictive of future results or
values which may be significantly more or less favorable than suggested by the
analyses. The following is a summary of the material factors considered and
primary financial analyses performed by Business Advisory in arriving at its
opinion of fairness.

Using publicly available information, Business Advisory analyzed, among
other things, selected transactions involving the acquisition of companies
involved in the construction and contracting industry with an emphasis on
companies providing mechanical and HVAC installation and service. The selected
transactions included 23 completed and pending acquisitions occurring during
1996 and 1997, including five completed acquisitions and seven pending
acquisitions by the Company, not including MMI. The selected transactions
represent companies whose operations were judged to be sufficiently similar to
MMI. These transactions were viewed as relevant for comparison to the business
of MMI and were not intended to represent a complete list of transactions.

Business Advisory reviewed the consideration paid in such transactions in
terms of the price paid for the common stock ("Equity Value") of such
transactions as a multiple of net income, sales and book value and the ratio
of market capitalization of the common stock plus interest-bearing debt, less
cash and cash equivalents to earnings before interest, taxes, depreciation and
amortization ("EBITDA"). This analysis indicated an implied Equity Value of
MMI of between $14.3 million and $21.8 million, or $102.77 to $156.68 per
share.

To provide additional data and comparative market information, Business
Advisory analyzed the market values of a group of publicly traded companies in
the construction and contracting industry. Business Advisory compared selected
operating and financial data of MMI to the corresponding data of the following
companies whose securities are publicly traded: Abrams Industries, Inc.,
Amelco Corporation, Comfort Systems USA, Inc., Gibbs Construction, Inc., KSW,
Inc. and Service Experts, Inc. Although Business Advisory used these companies
for comparison purposes, none of them are identical to MMI.

Business Advisory examined certain publicly available data for each company
including sales, earnings, book value and EBITDA. Business Advisory analyzed
the ratio of each company's share price to its sales per share, earnings per
share, book value per share and the ratio of the aggregate value of common
stock and interest bearing debt of each company to its EBITDA. This analysis
indicated an implied Equity Value of MMI of between $11.9 to $17.1 million, or
$85.53 to $122.90 per share.

Business Advisory performed discounted cash flow analyses based upon a
forecast provided by MMI. This forecast estimated, among other things, MMI's
total year 1997 and 1998 sales of $70.8 million and $67.9 million,
respectively, and pretax income of $2.7 million and $3.8 million,
respectively. Business Advisory discounted the forecasted cash flow available
to debt and equity holders using weighted average cost of capital as the
discount rate. The discount rates used ranged from 13% to 17%. To estimate the
residual value of MMI at the end of the forecast period, Business Advisory
used capitalization rates ranging from 9% to 13%. Business Advisory then
totaled the present values of the cash flows and residual values to arrive at
a range of value of MMI's invested capital, or value of interest bearing debt
and equity. Business Advisory then deducted MMI's interest bearing debt to
estimate a range of value of MMI's equity. This analysis indicated an implied
Equity Value of MMI of between $13.4 million to $21.8 million, or $96.31 to
$156.68 per share.

In arriving at its opinion of the relevant range of an implied Equity Value
under each of its valuation analyses, Business Advisory considered a wide
range of valuation data. These data included a range of transactions as well
as a variety of valuation measures (i.e., net income, sales, book value and
EBITDA). In

30
<PAGE>

arriving at its conclusion of the relevant ranges of implied Equity Value for
MMI set forth above, Business Advisory eliminated data points that were
extreme and, therefore, in the opinion of Business Advisory, less likely to be
representative of MMI's value.

The Equity Values implied by each measure utilized in each analysis,
including the Equity Values that were considered by Business Advisory to be
extreme, are as follows:

<TABLE>
<CAPTION>
ANALYSIS MEASURE EQUITY VALUE RANGE
-------- ------- ------------------
<S> <C> <C>
Selected Transactions Net Income $90.56-$118.59
Sales $237.17-$332.04
Book Value $125.77-$156.68
EBITDA $67.56-$102.77

Conclusion of analysis after eliminating extreme Equity Values: $102.77-
$156.68

<CAPTION>
ANALYSIS MEASURE EQUITY VALUE RANGE
-------- ------- ------------------
<S> <C> <C>
Comparable Companies Net Income $117.15-$142.30
Sales $85.53-$142.30
Book Value $75.46-$94.15
EBITDA $81.21-$122.90

Conclusion of analysis after eliminating extreme Equity Values: $85.53-
$122.90

<CAPTION>
ANALYSIS MEASURE EQUITY VALUE
-------- ------- ------------
<S> <C> <C>
Discounted Cash Flow Discount Rate = 15%;
Capitalization Rate = 11% $121.46
Discount Rate = 13%;
Capitalization Rate = 9% $156.68
Discount Rate = 17%;
Capitalization Rate = 13% $96.31
</TABLE>

Conclusion of analysis: $96.31-$156.68

Business Advisory's opinion was necessarily based upon the economic and
market conditions and other circumstances as they existed and could be
evaluated by Business Advisory as of the date of the Fairness Opinion.
Management of MMI does not expect to request Business Advisory to update its
Fairness Opinion.

In connection with its review, Business Advisory has relied upon the
accuracy and completeness of the financial and other information and
representations provided to it by MMI and its representatives and did not
attempt to independently verify such information. Business Advisory assumed
that any forecasts provided to it were prepared in good faith and on bases
reflecting the best currently available estimates and judgment of the
management of MMI relative to the expected future financial performance of MMI
and did not undertake any independent analysis to verify the reasonableness of
the assumptions underlying such forecasts.

Business Advisory is a regionally recognized valuation firm and was selected
by the MMI Board based upon Business Advisory's experience, reputation and
expertise. Business Advisory was selected through a process of investigations
by and interviews with members of the MMI Board and their advisors. For its
services as financial advisor to MMI in connection with the Merger, MMI has
agreed to pay Business Advisory a fee of approximately $40,000, plus out of
pocket expenses.

Business Advisory has had prior formal engagements with MMI. Since 1995,
Business Advisory has provided valuation services to the ESOP. In this
capacity, Business Advisory received fees for providing these services. Since
1995, aggregate fees paid to Business Advisory for these engagements were
approximately $35,000.

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<PAGE>

INTERESTS OF CERTAIN PERSONS IN THE MERGER

In considering the recommendation of the MMI Board to approve and adopt the
Merger Agreement and the transactions contemplated thereby, including the
Merger, MMI shareholders should be aware that the executive officers of MMI
and members of the MMI Board have interests in the Merger that are in addition
to the interests of MMI shareholders generally, and that the members of the
MMI Board having such interests participated in the discussion, deliberation
and voting of the MMI Board with respect to the Merger:

. Fredric J. Sigmund, President and Chief Executive Officer of MMI, will
become a director of the Company.

AGREEMENT TO VOTE

The Voting and Instruction Agreement provides, among other things, that each
Principal Shareholder and each of the other shareholders named therein shall
vote (or cause to be voted) during the time the Voting and Instruction
Agreement is in effect, the shares of MMI Common Stock held of record or
beneficially by such shareholder in favor of the Merger. In addition, the
Voting and Instruction Agreement provides that each Principal Shareholder and
each of the other shareholders named therein shall instruct the trustee (the
"Trustee") of the ESOP to vote the shares held by the Trustee in such
shareholder's account in favor of the Merger. Finally, each Principal
Shareholder and each of the other shareholders named therein has granted to,
and appointed, Merger Sub and certain officers of Merger Sub as each such
shareholder's irrevocable proxy and attorney-in-fact (with full power of
substitution) to vote their shares of MMI Common Stock in accordance with the
provisions of the Voting and Instruction Agreement.

ACCOUNTING TREATMENT

The Merger will be accounted for by the Company under the purchase method of
accounting in accordance with Accounting Principles Board Opinion No. 16,
"Business Combinations," as amended. Under this method of accounting, the
aggregate Merger consideration price will be allocated to MMI's assets and
liabilities based on their estimated fair values at the Effective Time, and
the results of operations of MMI will be included in the results of operations
of the Company only for periods subsequent to the Effective time.

CERTAIN FEDERAL INCOME TAX CONSIDERATIONS

The following discussion is the opinion of KPMG Peat Marwick LLP and
summarizes the material federal income tax considerations associated with the
Merger under the Code, to holders who hold shares of MMI Common Stock as
capital assets, the Company, Merger Sub and MMI. As it is not feasible to
describe all of the

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<PAGE>

tax consequences associated with the Merger, each shareholder should consult
his or her tax advisor with respect to the tax consequences of the Merger
applicable to his or her specific circumstances. In particular, the following
discussion does not address the potential tax consequences applicable to MMI
shareholders who are dealers in securities, who acquired their MMI Common
Stock through stock option or stock purchase programs or other employee plans
or otherwise as compensation, who are subject to special treatment under the
Code (such as insurance companies, tax-exempt organizations, financial
institutions, nonresident alien individuals or foreign entities) or who hold
shares of MMI Common Stock in a hedging transaction or as part of a straddle
or conversion transaction, nor any potential tax consequences applicable to
the holders of options or warrants to purchase MMI Common Stock assumed by the
Company in the Merger. The following summary, which is the opinion of KPMG
Peat Marwick LLP, is based on the Code, applicable Treasury Regulations,
judicial authority and administrative rulings and practice, all as of the date
hereof. There can be no assurance that future legislative, judicial or
administrative changes or interpretations will not adversely affect the
statements and conclusions set forth herein. Any such changes or
interpretations could be applied retroactively and could affect the tax
consequences of the Merger to MMI, the Company and their respective
shareholders. Furthermore, the following discussion addresses only certain
federal income tax matters and does not consider any state, local or foreign
tax consequences of the Merger or other transactions described in this Proxy
Statement/Prospectus.

Neither the Company nor MMI has requested or will request any ruling from
the Internal Revenue Service or an opinion of counsel in connection with the
Merger. However, the Merger has been structured with the intention that it
qualify as a reorganization under Section 368(a) of the Code. Qualification of
the Merger as a reorganization depends on compliance with certain technical
requirements of federal income tax law, including, among others, the
requirement that a continuity of proprietary interest be maintained by the
shareholders of the merged corporation. In order for this requirement to be
satisfied, the shareholders of MMI must not, pursuant to a plan or intention
existing at or prior to the Merger, dispose of so much of either (A) their
shares of MMI Common Stock in anticipation of the Merger or (B) the Company
Common Stock received pursuant to the Merger such that the holders of shares
of MMI Common Stock, as a group, would no longer have a significant equity
interest in the MMI business being conducted by the combined companies after
the Merger. It is the position of the Internal Revenue Service that the
continuity of interest requirement generally will be considered satisfied if
the shareholders of the merged corporation receive in the aggregate (and have
no plan to dispose of) stock of the acquiring corporation equal in value to at
least 50% of the value of all of the formerly outstanding stock of the
acquired corporation as of the effective date of the reorganization, and a
decision of the United States Supreme Court indicates that continuity of
interest in the range of 40% is sufficient.

The Merger Agreement provides that 60% of the consideration paid by the
Company to MMI shareholders in exchange for their MMI Common Stock pursuant to
the Merger will consist of Company Common Stock and 40% will consist of cash.
Furthermore, pursuant to the Merger Agreement, the Principal Shareholders are
obligated to give a representation that each such shareholder has no plan to
sell, transfer or otherwise dispose of or convey the Company Common Stock
received by it pursuant to the Merger. Satisfaction of the continuity of
interest requirement, however, depends in part on actions that may be taken by
MMI shareholders either before or after the consummation of the Merger over
which neither MMI nor the Company has any control. Accordingly, there can be
no assurance that the continuity of interest requirement will be satisfied
with respect to the Merger. If the continuity of interest requirement (or any
other requirement for reorganization treatment under the Code or Treasury
Regulations) is not satisfied, the Merger will not be treated as a
reorganization and material adverse tax consequences will result to MMI and
some or all of the holders of MMI Common Stock.

Tax Consequences to MMI Shareholders. Assuming the Merger is treated as a
reorganization under the Code, the following federal income tax consequences,
among others, generally will apply to MMI shareholders:

(i) The holders of MMI Common Stock will recognize gain, but not loss,
equal to the lesser of the (1) gain realized or (2) the cash portion of the
consideration received in the Merger. The gain realized equals the fair
market value of the total consideration received in the Merger minus the
adjusted basis of the holder's MMI Common Stock transferred to the Company
in the Merger. The gain recognized will qualify

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for sale or exchange treatment under Section 356(a)(2) of the Code,
resulting in capital gain, provided that the MMI Common Stock is a capital
asset in the hands of the holder. Notwithstanding the foregoing, the ESOP
will recognize no gain or loss on the receipt of the cash or shares of
Company Common Stock.

(ii) The basis of the Company Common Stock to be received by the holders
of MMI Common Stock will be equal to the basis of the MMI Common Stock to
be surrendered in the Merger decreased by the cash received in the Merger
and increased by the amount of gain recognized as a result of the Merger.

(iii) The holding period of the Company Common Stock received by each MMI
shareholder will include the period for which the MMI Common Stock
surrendered in exchange therefor was considered to be held, provided the
MMI Common Stock so surrendered is held as a capital asset at the Effective
Time.

(iv) The payment of cash in lieu of fractional share interests of Company
Common Stock will be treated for federal income tax purposes as if the
fractional shares were distributed as part of the exchange and then were
redeemed by the Company. These cash payments will be treated as having been
received as distributions in full payment in exchange for the shares
redeemed as provided in Section 302(b) of the Code. Provided the fractional
share interest is a capital asset in the hands of an exchanging
shareholder, the gain or loss will constitute capital gain or loss subject
to the provisions and limitations of Subchapter P of Chapter 1 of the Code.

(v) The holders of MMI Common Stock who exercise dissenter's rights in
the Merger and receive a cash payment for their shares will recognize gain
or loss equal to the cash received minus the adjusted basis of the holder's
MMI Common Stock transferred to the Company in the Merger. The gain or loss
recognized will qualify for sale or exchange treatment under Section 1001
of the Code, resulting in capital gain or loss, provided that the MMI
Common Stock is a capital asset in the hands of the holder.

Irrespective of the reorganization status of the Merger, a recipient of
shares of the Company Common Stock will recognize income if and to the extent
any such shares are considered to be received in exchange for services or
property (other than MMI Common Stock). All or a portion of such income may be
taxable as ordinary income. Gain also will be recognized if and to the extent
an MMI shareholder is treated as receiving (directly or indirectly)
consideration other than the Company Common Stock in exchange for his or her
MMI Common Stock.

Tax Consequences to the Company and MMI. Assuming the Merger is treated as a
reorganization under the Code, generally no gain or loss will be recognized by
the Company, Merger Sub or MMI as a result of the Merger. The Merger will not
have any tax consequences for the Company shareholders.

THE FOREGOING DISCUSSION IS FOR GENERAL INFORMATION ONLY AND IS NOT A COMPLETE
DESCRIPTION OF ALL POTENTIAL TAX CONSEQUENCES THAT MAY OCCUR AS A RESULT OF
THE MERGER. MMI SHAREHOLDERS SHOULD THEREFORE CONSULT THEIR TAX ADVISORS
REGARDING THE FEDERAL TAX CONSEQUENCES OF THE MERGER, THE HOLDING AND
DISPOSING OF COMPANY COMMON STOCK RECEIVED IN THE MERGER AND THE TAX
CONSEQUENCES OF THE MERGER ARISING UNDER THE LAWS OF ANY STATE, LOCAL OR OTHER
JURISDICTION.

REGULATORY APPROVALS

Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended
(the "HSR Act"), and the rules promulgated thereunder by the Federal Trade
Commission (the "FTC"), the Merger may not be consummated until notifications
have been given and certain information has been furnished to the FTC and the
Antitrust Division of the Department of Justice (the "Antitrust Division") and
specified waiting period requirements have been satisfied. At any time before
or after consummation of the Merger, the Antitrust Division or the FTC could
take such action under the antitrust laws as it deems necessary or desirable
in the public interest, including seeking to enjoin the consummation of the
Merger or seeking divestiture of substantial assets

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of the Company or MMI. As of the date of this Proxy Statement/Prospectus,
early termination of waiting periods under the HSR Act have been granted by
the FTC and the Antitrust Division. At any time before or after the Effective
Time of the Merger, any state could take such action under the antitrust laws
as it deems necessary or desirable in the public interest. Such action could
include seeking to enjoin the consummation of the Merger or seeking
divestiture of MMI or businesses of the Company or MMI. Private parties may
also seek to take legal action under the antitrust laws under certain
circumstances. See "The Merger Agreement--Conditions to the Merger." Based on
information available to them, the Company and MMI believe that the Merger
will be effected in compliance with federal and state antitrust laws. However,
there can be no assurance that a challenge to the consummation of the Merger
on antitrust grounds will not be made or that, if such a challenge were made,
the Company and MMI would prevail or would not be required to accept certain
conditions, possibly including certain divestitures, in order to consummate
the Merger.

Consummation of the Merger is conditioned upon the receipt of all material
governmental licenses, authorizations, consents, orders and approvals, subject
to waiver of such conditions, in accordance with the terms of the Merger
Agreement. The Company and MMI intend to pursue vigorously all required
regulatory approvals. However, there can be no assurance regarding the timing
of such approvals or that such approvals will, in fact, be obtained. See "The
Merger Agreement--Conditions to the Merger."

FEDERAL SECURITIES LAW CONSEQUENCES

All shares of the Company Common Stock received by MMI shareholders in the
Merger will be freely transferable, except that shares of the Company Common
Stock received by persons who are deemed to be "affiliates" (as such term is
defined under the Securities Act) of MMI are restricted pursuant to Rule 145
promulgated under the Securities Act, which will allow "affiliates" of MMI to
resell their Company Common Stock obtained in the Merger if they comply with
paragraphs (c), (e), (f) and (g) of Rule 144 pertaining to public information,
limits on amounts sold, the manner of such sales and restrictions on brokers'
transactions. In addition, the Principal Shareholders will be required to
enter into a Stock Transfer Restriction Agreement.

STOCK TRANSFER RESTRICTION AGREEMENT

The Stock Transfer Restriction Agreement into which the Principal
Shareholders will enter requires that, at any time that the Company is engaged
in an underwritten public offering of its securities, each shareholder who is
a party thereto shall refrain from making any disposition of Company Common
Stock on a securities exchange or in the over-the-counter or any other public
trading market for the period of time requested by the Company; provided,
however, that (i) the restrictions on the transfer of Company Common Stock
shall not limit any shareholder's right to sell Company Common Stock in the
same proportion as other shareholders of the Company who may have piggyback
registration rights pursuant to any registration rights or similar agreement
binding upon the Company and (ii) such restrictions are no more restrictive
than those imposed on the management of the Company. Additionally, the Stock
Transfer Restriction Agreement provides that, during the one-year period
following the date of such agreement (the "First Holding Period"), the
shareholder will not dispose of his or her shares of Company Common Stock
(subject to certain limited exceptions generally involving transfers to family
members and trusts). In addition to the foregoing restrictions, during the one
year period following the First Holding Period (the "Second Holding Period"),
no shareholder who is a party thereto may dispose of any Company Common Stock
in any calendar month in an amount greater than 3% of the number of shares of
Company Common Stock issued to such shareholder increasing cumulatively for
months in which less than 3% was sold. Finally, any shareholder who is a party
thereto shall provide five business days' notice to the Company prior to any
proposed disposition until the later of (i) the end of the one-year period
following the Second Holding Period, (ii) for as long as such shareholder is
an officer or director of the Company or any of its subsidiaries or (iii) the
date on which such shareholder ceases to hold the greater of 50,000 shares of
Company Common Stock or 20% of the number of shares originally issued to such
shareholder.

No shareholder who is a party thereto shall make a transfer of any Company
Common Stock if such action would constitute (i) a violation of any federal or
state securities law, (ii) a breach of any condition to any

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exemption from registration of the Company Common Stock under any such laws or
(iii) a breach of any undertaking or agreement of such shareholder entered
into pursuant to such laws or in connection with obtaining an exemption
thereunder.

The summary herein of the material provisions of the Stock Transfer
Restriction Agreement does not purport to be complete and is subject to, and
is qualified in its entirety by reference to, all of the provisions thereof,
the form of which is filed as an exhibit to the Registration Statement of
which this Proxy Statement/Prospectus is a part.

DISSENTERS' RIGHTS

Chapter 23B.13 (sections 23B.13.010 through 23B.13.310) of the WBCA entitles
any MMI shareholder who objects to the Merger and, who follows the procedures
prescribed by Chapter 23B.13, in lieu of receiving the consideration proposed
under the Merger, to receive cash equal to the "fair value" of such
shareholder's shares of MMI Common Stock, as appropriate. Set forth below is a
summary of the procedures relating to the exercise of such dissenters' rights.
This summary of the material provisions of Chapter 23B.13 of the WBCA does not
purport to be a complete statement of dissenters' rights and is qualified in
its entirety by reference to Chapter 23B.13 of the WBCA, which is reproduced
in full as Annex C attached to this Proxy Statement/Prospectus and to any
amendments to such provisions as may be adopted after the date of this Proxy
Statement/Prospectus.

ANY MMI SHAREHOLDER CONTEMPLATING THE POSSIBILITY OF DISSENTING FROM THE
MERGER SHOULD CAREFULLY REVIEW THE TEXT OF ANNEX C (PARTICULARLY THE SPECIFIED
PROCEDURAL STEPS REQUIRED TO PERFECT THE DISSENTERS' RIGHTS FOUND IN SECTIONS
23B.13.210 AND 23B.13.230, WHICH ARE COMPLEX) AND SHOULD ALSO CONSULT SUCH
SHAREHOLDER'S LEGAL COUNSEL. SUCH RIGHTS WILL BE LOST IF THE PROCEDURAL
REQUIREMENTS OF CHAPTER 23B.13 OF THE WBCA ARE NOT FULLY AND PRECISELY
SATISFIED.

The WBCA provides dissenters' rights for any shareholder of MMI who objects
to the Merger and who meets the requisite statutory requirements contained in
the WBCA. Under the WBCA, any MMI shareholder who (i) files with MMI written
notice of his or her intent to demand the fair value of his or her shares of
MMI Common Stock if the Merger is consummated and becomes effective, which
notice is filed with MMI before the vote is taken at the MMI Special Meeting
and (ii) does not vote his or her shares of MMI Common Stock at the Special
Meeting in favor of the proposal to approve the Merger, shall be entitled, if
the Merger is approved and effected, to receive a cash payment of the fair
value of such shareholder's shares of MMI Common Stock upon compliance with
the applicable statutory procedural requirements. A shareholder who does not
satisfy such requirements will not be entitled to payment for such
shareholder's shares of MMI Common Stock under the dissenters' rights
provisions of the WBCA and will be bound by the terms of the Merger Agreement.
In the event an MMI Shareholder has sent in a Proxy voting for the Merger and
wishes to revoke the Proxy or change such shareholder's vote, such shareholder
may do so by following the procedure set forth in "The MMI Special Meeting--
Proxies, Revocation of Proxies."

Any written notice of a MMI shareholder's intent to demand payment for such
shareholder's shares of MMI Common Stock if the Merger is consummated must be
filed with MMI at: 7717 Detroit Ave. S.W., Seattle, Washington 98106, or toll-
free by facsimile to 1-888-329-4175, prior to the vote on the Merger at the
MMI Special Meeting. A shareholder who votes for the Merger will have no
dissenters' rights. A shareholder who does not satisfy each of the
requirements of Chapter 23B.13.210(1) of the WBCA is not entitled to payment
for such shareholder's shares of MMI Common Stock under the dissenters' rights
provisions of the WBCA and will be bound by the terms of the Merger Agreement.

After the proposed Merger has been approved, MMI must send written notice
within ten days after the effective date of the approval to all shareholders
who have given written notice of their intent to demand the fair value of
their shares of MMI Common Stock and who have not voted in favor of the Merger
as described above. The notice will: (i) state the address where the demand
for payment and certificates must be sent and the date by which they must be
received, (ii) inform shareholders of any restrictions on transfer of
uncertificated shares that will apply after the demand for payment is
received, (iii) supply a form for demanding payment that includes the

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<PAGE>

date of the first announcement to news media or to shareholders of the terms
of the merger and that requires any shareholder asserting dissenters' right to
certify whether or not the shareholder acquired beneficial ownership of the
shares before that date, (iv) set a date by which the corporation must receive
the payment demand which shall be not fewer than 30 or more than 60 days after
the date of notice, and (v) attach a copy of the provisions of the WBCA set
forth in Annex C with a brief description of the procedures to be followed
under those provisions. A shareholder who has been sent such notice must
demand payment, certify whether the shareholder acquired beneficial ownership
of the shares before the date set forth in such notice for such purpose and
deposit the shareholder's certificates in accordance with the terms of such
notice. A shareholder who does not demand payment or deposit the shareholder's
certificates by the date set forth in such notice is not entitled to payment
for such shareholder's shares of MMI Common Stock under the dissenters' rights
provisions of the WBCA and will be bound by the terms of the Merger Agreement.
Prior to the Effective Time, a MMI shareholder exercising dissenters' rights
retains all other rights of a MMI shareholder. From and after the Effective
Time of the Merger, dissenting shareholders will no longer be entitled to any
rights of a MMI shareholder, including, but not limited to, the right to
receive notice of meetings, to vote at any meetings or to receive dividends,
and will only be entitled to any rights to appraisal as provided by the WBCA.
If any such holder of MMI Common Stock shall have failed to perfect or shall
have effectively withdrawn or lost such right, his or her shares of MMI Common
Stock shall thereupon be deemed to have been converted into the right to
receive the Merger Consideration.

Within 30 days of the Effective Time or receipt of a valid demand for
payment, whichever is later, MMI must remit to each dissenting shareholder who
complied with the requirements of the WBCA the amount MMI estimates to be the
fair value of such shareholder's shares of MMI Common Stock, plus interest
accrued from the Effective Time of the Merger to the date of payment. The
payment also must be accompanied by certain financial data relating to MMI or
MMI's estimate of the fair value of the shares and a description of the method
used to reach such estimate, an explanation of how the interest was calculated
and a copy of the applicable provisions of the WBCA with a brief description
of the procedures to be followed in demanding supplemental payment. The
dissenting shareholder may decline the offer and demand payment for the fair
value of the MMI Common Stock or accept the offer of payment and demand the
difference between the payment and the dissenter's estimate of the fair value
of the MMI Common Stock. Failure to make such demand within 30 days of MMI's
payment or offer of payment for the dissenting shareholder's shares entitles
the dissenting shareholder only to the amount offered. If MMI fails to
consummate the merger within 60 days of the deposit of the certificates by a
dissenting shareholder, it shall return all deposited certificates; however,
MMI may again give notice regarding the procedure to exercise dissenters'
rights and require deposit at a later time.

If MMI receives a demand from a dissenting shareholder to pay such
difference, it shall, within 60 days after receiving the demand, either pay to
the dissenting shareholder the amount demanded or agreed to by the dissenting
shareholder or file in court a petition requesting that the court determine
the fair value of the MMI Common Stock.

The court may appoint one or more appraisers to receive evidence and make
recommendations to the court on the amount of the fair value of the shares.
The court shall determine whether the dissenting shareholder has complied with
the requirements of Chapter 23B.13 of the WBCA and shall determine the fair
value of the shares, taking into account any and all factors the court finds
relevant, computed by any method or combination of methods that the court, in
its discretion, sees fit to use. The fair value of the shares as determined by
the court is binding on all dissenting shareholders who declined the offer by
MMI and demanded payment for the fair market value of the MMI Common Stock or
demanded the difference between the payment offered and the dissenter's
estimate of the fair value of the MMI Common Stock but whose demand remains
unsettled and may be less than, equal to or greater than the market price of
the Company Common Stock and cash to be issued to non-dissenting shareholders
for their shares of MMI Common Stock if the Merger is completed. If the court
determines that the fair value of the shares is in excess of the amount, if
any, remitted by MMI, then the court will enter a judgment for cash in favor
of such dissenting shareholders whose demand remains unsettled in an amount by
which the value determined by the court, plus interest, exceeds such amount
previously remitted. A dissenting shareholder who does not object to the offer
of payment by MMI will not receive such excess, if any.

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<PAGE>

A dissenting shareholder will not be liable to MMI if the amount, if any,
remitted to such shareholder exceeds the fair value of the shares, as
determined by the court, plus interest.

Costs of the court proceeding shall be determined by the court and assessed
against MMI, except that part or all of the costs may be assessed against any
dissenting shareholders whose actions in demanding supplemental payments are
found by the court to be arbitrary, vexatious or not in good faith.

If the court finds that MMI did not substantially comply with the relevant
provisions of the WBCA, the court may assess the fees and expenses, if any, of
attorneys or experts as the court deems equitable against MMI. Such fees and
expenses may also be assessed against any party in bringing the proceedings if
the court finds that such party has acted arbitrarily, vexatiously or not in
good faith, and may be awarded to a party injured by those actions. The court
may award, in its discretion, fees and expenses of an attorney for the
dissenting shareholders out of the amount awarded to such shareholders, if
any.

A shareholder of record may assert dissenters' rights as to fewer than all
of the shares registered in such shareholder's name only if he or she dissents
with respect to all shares beneficially owned by any one beneficial
shareholder and notifies MMI in writing of the name and address of each person
on whose behalf he or she asserts dissenters' rights. The rights of such a
partial dissenting shareholder are determined as if the shares as to which he
or she dissents and his or her other shares were registered in the names of
different shareholders.

MANAGEMENT AND OPERATIONS FOLLOWING THE MERGER

The business and operations presently conducted by MMI will be essentially
the business and operations to be conducted by Merger Sub as the surviving
corporation following effectiveness of the Merger. The officers and directors
of MMI will become the officers and directors of Merger Sub; however, Merger
Sub will be a wholly owned subsidiary of the Company and the shareholders of
MMI, who will become shareholders of the Company, will not have any direct
influence on the management of Merger Sub. In addition, Fredric J. Sigmund,
Chief Executive Officer of MMI, will become a director of the Company in
addition to becoming the Chief Executive Officer of Merger Sub. Consequently,
Mr. Sigmund will be required to devote a portion of his time to the business
and affairs of the Company.

In connection with, but immediately prior to the consummation of, the
Merger, the business of the MacDonald-Miller Residential Division will be
segregated into a new, wholly owned corporation, all of the stock of which
will be distributed to the shareholders of MMI. The remaining business of MMI,
including the businesses conducted by its subsidiaries, MacDonald-Miller
Company, Inc. and MacDonald-Miller Service, Inc., will be merged with and into
Merger Sub and, following the Merger, the business of MMI will be operated by
Merger Sub, which will change its name to "MacDonald-Miller Industries, Inc.,"
as a wholly owned subsidiary of the Company.

Although the Company expects to realize certain operating efficiencies and
expense savings as a result of the Merger, it does not presently intend to
consolidate any of the operations of MMI with those of the Company.
Consequently, following the Merger, Merger Sub will continue to maintain its
offices and facilities in Seattle, Washington and Portland, Oregon and will
continue to operate the former business of MMI (other than the Residential
division) without interruption.

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THE MERGER AGREEMENT

The following summarizes the material terms of the Merger Agreement, which
is attached hereto as Annex A and incorporated by reference herein.
Shareholders of MMI are urged to read the Merger Agreement in its entirety for
a more complete description of the terms of the Merger.

EXCHANGE OF SHARE CERTIFICATES

Prior to the Effective Time, the Company will send to each shareholder of
record of MMI as of the Record Date a Letter of Transmittal and other
transmittal materials for use in exchanging certificates of MMI Common Stock
for certificates of the Company Common Stock. The transmittal materials will
contain information and instructions with respect to the surrender of MMI
Common Stock certificates in exchange for new certificates representing the
Company Common Stock, the cash consideration and cash in payment for any
fractional shares resulting from the exchange. Certificates should not be
surrendered until the Letter of Transmittal is received. Pending delivery to
the Company of MMI Common Stock certificates, any dividends on the Company
Common Stock to be issued as a result of the Merger that are payable prior to
the delivery of such certificates will be held by the Company. Such dividends
will be paid, without interest, to the persons entitled thereto upon delivery
of such MMI Common Stock certificates to the Company. In the event the Merger
is not consummated for any reason, the certificates representing the MMI
Common Stock will be returned to the holders thereof.

Fractional shares of the Company Common Stock will not be issued in the
Merger. Instead, each shareholder of MMI who would otherwise be entitled to a
fractional share will receive cash equal to such fractional part of a share of
Company Common Stock multiplied by the IPO Price.

BUSINESS OF MMI PENDING THE MERGER

Pending the consummation of the Merger, except as expressly required or
permitted by the Merger Agreement or as otherwise consented to or approved in
advance by the Company in writing, the Principal Shareholders have agreed to
use reasonable efforts to cause MMI to, and MMI has agreed to, conduct its
operations according to its ordinary and usual course of business to preserve
substantially intact its business organization, keep available the services of
its officers and employees, and maintain its present relationships with
licensors, suppliers, distributors, customers and others having significant
business relationships with it. The Principal Shareholders have agreed to
cause representatives of MMI to confer with representatives of the Company to
keep it informed with respect to the general status of the on-going operations
of the business of MMI.

Without limiting the generality of the foregoing, and except as otherwise
contemplated herein, the Principal Shareholders have agreed to use reasonable
efforts to cause MMI to: (i) carry on its business in substantially the same
manner as heretofore carried on and not introduce any material new method of
management, operation or accounting, nor provide any new discounted services;
(ii) maintain its properties, facilities, equipment and other assets,
including those held under leases, in good working order, condition and
repair, ordinary wear and tear excepted; (iii) perform all of its obligations
under all debt and lease instruments and other agreements relating to or
affecting its business, assets, properties, equipment and rights, and pay all
vendors, suppliers, and other third parties (including mechanics and
materialmen) as and when their bills are due (in accordance with past
practice) and pay in full all payroll obligations when due; (iv) keep in full
force and effect its present insurance policies or other comparable insurance
coverage; (v) use its best efforts to maintain and preserve its business
organization intact, retain its present employees and maintain its
relationship with suppliers, customers and others having business relations
with MMI; (vi) refrain from effecting any change in the capital structure of
MMI; refrain from incurring any expenditures outside the normal course of
business, including any capital expenditures in excess of $50,000, without
prior written notification to the Company; (vii) refrain from starting or
acquiring any new businesses without the prior written consent of the Company;
(viii) maintain its present salaries and commission levels for all officers,
directors, employees or agents, except for the usual and customary merit
increases for employees; (ix) refrain from declaring or paying any bonuses,
fees, extraordinary commissions or any other unusual distributions to any
shareholder, directors, management, sales agents, employees or other personnel

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without prior written notification to the Company except for the payment of
certain bonuses and the granting of certain options in connection with the
Merger; (x) promptly notify the Company of the receipt by it or any Principal
Shareholder of any notice or claim, written or oral, of (a) default or breach
by MMI under, or of any termination (other than at the end of the stated term
thereof) or cancellation, or threat of termination (other than at end of the
stated term thereof) of cancellation, of any Company Contract (as defined in
the Merger Agreement), (b) any loss of, damage to or disposition of, any of
the properties, assets or the products of MMI of a value of $25,000 or more,
singly or in the aggregate (other than the sale or use of inventories in the
ordinary course of business), (c) any claim or litigation threatened or
instituted, or any other material adverse event or occurrence involving or
affecting MMI or any of its assets, properties, operations, businesses or
employees, and (d) any proposal made by any third party received by MMI or of
which any shareholder obtains knowledge in respect of any sale or other
disposition, direct or indirect, of the assets (other than the sale or use of
inventories in the ordinary course of business), businesses or outstanding
capital stock or other ownership or voting interests of MMI; (xi) comply with
and cause to be complied with all applicable laws, rules, regulations and
orders of all federal, state and local governments or governmental agencies
affecting or relating to MMI or its assets, properties, operations, businesses
or employees except where the failure to comply will not have a material
adverse effect; (xii) refrain from any sale, disposition, distribution or
encumbrance of any of its properties or assets and refrain from entering into
any agreement or commitment with respect to any such sale, disposition,
distribution or encumbrance (other than the sale or use of inventories in the
ordinary course of business); (xiii) refrain from any purchase or redemption
of any capital stock, Other Ownership Interest (as defined in the Merger
Agreement) or other voting interest of MMI and, except as provided in the
Merger Agreement or in connection with the Merger, refrain from issuing any
capital stock or Other Ownership Interest; (xiv) refrain from making any
change in any accounting principle, classification, policy or practice; (xv)
refrain from effecting any amendment to the certificate or articles of
incorporation or bylaws or other governing instruments of MMI; (xvi) refrain
from entering into or agreeing to enter into any merger or consolidation by
MMI with or into, and refrain from acquiring all or substantially all of the
assets, capital stock or business of, any person, corporation, partnership,
association or other business organization or division of any thereof; (xvii)
maintain its present debt and lease agreements and instruments (except those
that expire on their stated maturity or lease termination dates); refrain from
entering into any amendment thereto or new debt or lease agreements or
instruments; refrain from increasing any indebtedness for borrowed money
(other than financing of vehicles and equipment in the ordinary course of
business consistent with past practices) or issuing or selling any debt
securities or letters of credit; and refrain from making any payments of any
indebtedness or interest or other amounts thereon or with respect thereto
(other than regularly scheduled principal and interest payments and payments
of principal, interest and fees under revolving lines of credit); (xviii)
manage working capital in the ordinary course consistent with past practice
and refrain from introducing any new method of management or operation,
providing any new discounted services or products, discounting any receivables
(other than in non-material amounts consistent with past practices) or taking
any action to accelerate payment of any receivable prior to its due date; and
(xix) refrain from entering into any contract, lease, undertaking, commitment,
mortgage, indenture, note, security agreement, license or other agreement (a)
involving the receipt or expenditure of more than $50,000 over the term
thereof, (b) containing provisions calling for the sale or purchase of raw
materials, products or services at prices that vary from the market prices of
such raw materials, products or services generally prevailing in customary
third-party markets, (c) which include "take or pay", "meet or release", "most
favored nations" or similar pricing or delivery arrangements, (d) with any
officer, director, shareholder or affiliate of MMI, except as permitted in the
Merger Agreement, (e) requiring MMI to indemnify or hold harmless any other
person or entity, (f) evidencing any warranty obligation of MMI with respect
to goods, services or products sold or leased by it (other than warranties
given in the normal course of business containing substantially the same terms
as those presently in effect), or (g) imposing on MMI any confidentiality,
non-disclosure or non-compete obligation. The segregation and subsequent
spinoff of the MacDonald-Miller Residential Division from MMI will not violate
MMI's or the Principal Shareholder's convenants under the Merger Agreement.

CONDITIONS TO THE MERGER

Consummation of the Merger is subject to the satisfaction of various
conditions, including (i) the delivery of a certificate by each of the parties
to the Merger Agreement to the other parties as to the accuracy of the

40
<PAGE>

representations and warranties of such parties contained in the Merger
Agreement, (ii) the delivery by each of the parties to the other parties of
certificates as to the performance and compliance with all covenants of the
Merger Agreement to be performed or complied with by such parties, (iii) the
delivery by the Principal Shareholders and MMI to the Company and Merger Sub
of a certificate as to the absence of any legal action or proceeding against
MMI, the Company or Merger Sub arising by reason of the acquisition of MMI
pursuant to the Merger Agreement, which is likely (a) to restrain, prohibit or
invalidate the consummation of the transactions contemplated by the Merger
Agreement, (b) to have a material adverse effect upon MMI or (c) to have a
material adverse effect upon the Company after giving effect to the
consummations of the transactions contemplated by the Merger Agreement; (iv)
the delivery by MMI and the Principal Shareholders to the Company and Merger
Sub, and by the Company to the Principal Shareholders and MMI, of certificates
with respect to the procurement of all consents, approvals and waivers of
third parties or any regulatory body or authority required to be procured by
such parties; (v) the execution and delivery of all documents required to be
executed and delivered by the parties pursuant to the Merger Agreement; (vi)
the occurrence of no casualty, loss or damage on or prior to the Effective
Time to any of the properties or assets of MMI; (vii) the obtaining by MMI of
all such licenses and permits as are legally required for the continued
operation of the business after the Effective Time, except such licenses and
permits, the absence of which would not have a material adverse effect upon
MMI; (viii) since December 31, 1996, the occurrence of no event that in the
reasonable judgment of the Company adversely effects the properties, assets,
financial condition, results of operations, cash flows, business or prospects
of MMI; (ix) the completion by the Company of the IPO on terms acceptable to
it, and the receipt by the Company of the net proceeds thereof, (x) the
execution and delivery of all necessary director and shareholder resolutions,
waivers and consents required to consummate the transactions contemplated
under the Merger Agreement; and (xi) the making of all required filings, if
any, under the HSR Act with respect to the transactions contemplated by the
Merger Agreement and the expiration or termination of the waiting periods
thereunder (the FTC and the Antitrust Division have granted early termination
of the waiting periods required under the HSR Act). Such conditions to closing
under the Merger Agreement may be waived by MMI and the Principal
Shareholders. Any such action taken by MMI must be authorized by its Board of
Directors or its shareholders, depending on the action taken, as determined
under the Washington Business Corporation Act.

TERMINATION; AMENDMENT

The Merger Agreement may be terminated and the Merger may be abandoned prior
to the Effective Time either before or after its approval by the shareholders
of MMI, under the circumstances specified therein, including (i) by the
written agreement of MMI and the Company; (ii) by MMI, by written notice to
the Company, if the Closing shall have failed to occur by 5:00 p.m., Houston,
Texas time on December 31, 1997, but only if neither MMI nor any Principal
Shareholder has materially breached the Merger Agreement or has failed to
perform any of their respective obligations under the Merger Agreement; (iii)
by the Company, by written notice to MMI, if the Closing shall have failed to
occur by 5:00 p.m., Houston, Texas time on December 31, 1997, but only if
neither the Company nor Merger Sub has materially breached the Merger
Agreement or has failed to perform any of its obligations under the Merger
Agreement; (iv) by MMI, by written notice to the Company, if either the
Company or Merger Sub has breached the Merger Agreement or failed to perform
any of its obligations under the Merger Agreement; or (v) by the Company, by
written notice to MMI, if MMI or any Principal Shareholder has breached the
Merger Agreement or has failed to perform any of their respective obligations
under the Merger Agreement.

If the Merger Agreement is terminated as permitted thereunder, such
termination will be without liability of any party to any other party, except
that such termination will be without prejudice to any and all remedies the
parties may have against each other for breach of the Merger Agreement.

41
<PAGE>

SELECTED HISTORICAL AND PRO FORMA FINANCIAL DATA

The Company has previously acquired the Pre-IPO Companies and will acquire
the IPO Acquisition Companies simultaneously with the closing of its IPO. The
first and largest acquisition made by the Company was that of Airtron. For
accounting purposes, this transaction was accounted for as a reverse
acquisition, as if Airtron acquired the GroupMAC Parent, because the former
shareholders of Airtron owned a majority of GroupMAC Parent's Common Stock
upon consummation of the transaction. As such, the selected historical
financial data set forth below as of and for the three-year period ended
February 28, 1997 have been derived from the financial statements of Airtron,
which have been audited by KPMG Peat Marwick LLP, independent public
accountants. The financial statements of GroupMAC Parent and the Pre-IPO
Companies are included in the Financial Statements from their respective dates
of acquisition. The selected historical financial data set forth below as of
and for each of the four month periods ended June 30, 1996 and 1997 were
derived from the financial statements of Airtron. In addition to reflecting
the transaction discussed above, the historical balance sheet data as of June
30, 1997 include A-ABC/A-1, Hallmark and K&N, which were acquired effective
June 1, 1997, and Charlie's, Costner, Jarrell and the assets of Way
Residential, which were acquired effective June 30, 1997. The operations of
all of these companies have been included in the historical income statement
data from their respective dates of acquisition. In the opinion of the
Company's management, the selected historical financial data of the Company as
of and for the four months ended June 30, 1997 and 1996 include all adjusting
entries (consisting only of normal recurring adjustments) necessary to present
fairly the information set forth therein. The results of operations for the
four months ended June 30, 1997 should not be regarded as indicative of the
results that may be expected for the full year.

The selected pro forma financial data of the Company as of and for the six
months ended June 30, 1996 and 1997 and the year ended December 31, 1996 are
derived from the Unaudited Pro Forma Combined Financial Statements of the
Company that appear elsewhere in this Proxy Statement/Prospectus. The pro
forma financial data listed below present certain information for the Company,
as adjusted for (i) the effects of the acquisitions of the GroupMAC Companies
and (ii) the effects of certain pro forma adjustments to the historical
financial data statements of the GroupMAC Companies directly related to those
acquisitions. The pro forma as adjusted financial data give effect to the
consummation of the IPO and the application of the net proceeds therefrom, as
if they had all occurred on the first day of each respective period. The pro
forma financial data of the Company do not purport to represent what the
Company's results of operations or financial position actually would have been
had these events, in fact, occurred on the date or at the beginning of the
period indicated, nor are they intended to project the Company's results of
operations or financial position for any future date or period.

The selected pro forma financial data of MMI as of and for the six months
ended June 30, 1996 and 1997 and the year ended December 31, 1996 are derived
from the Unaudited Pro Forma Consolidated Financial Statements of MMI that
appear elsewhere in this Proxy Statement/Prospectus. The pro forma as adjusted
financial data give effect to the distribution of the net assets of MacDonald-
Miller Residential, a division of MacDonald-Miller Company, Inc. as if it had
occurred on the first day of each respective period. The pro forma financial
data of MMI do not purport to represent what MMI's results of operations or
financial position actually would have been had this event, in fact, occurred
on the date or at the beginning of the period indicated, nor are they intended
to project MMI's results of operations or financial position for any future
date or period.

The data presented below should be read in conjunction with Management's
Discussion and Analysis of Financial Condition and Results of Operations, the
Financial Statements and the related notes thereto, the Unaudited Pro Forma
Combined Financial Statements of the Company and the Unaudited Pro Forma
Consolidated Financial Statements of MMI and the notes thereto included
elsewhere herein.

42
<PAGE>

SELECTED FINANCIAL DATA OF THE COMPANY

(IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
PRO FORMA HISTORICAL PRO FORMA AS
FISCAL YEAR ENDED FEBRUARY 28 OR 29, AS ADJUSTED(2) FOUR MONTHS ENDED ADJUSTED SIX MONTHS
(1) YEAR ENDED JUNE 30, ENDED JUNE 30,
------------------------------------------ DECEMBER 31, ------------------- ----------------------
1993 1994 1995 1996 1997 1996 1996 1997(3) 1996(2) 1997(2)
------- ------- ------- ------- ------- -------------- ---------- ------- ----------- ----------
(UNAUDITED) (UNAUDITED) (UNAUDITED) (UNAUDITED)
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
INCOME STATEMENT
DATA:
Revenues......... $54,552 $66,281 $72,226 $73,765 $81,880 $307,507 $25,957 $31,086 $151,396 $157,941
Gross Profit..... 15,565 18,977 21,766 21,091 23,374 71,596 7,031 8,399 33,479 36,582
Selling, General
and
Administrative
Expenses(4)..... 12,648 15,760 20,282(5) 17,615 19,811 48,953(6) 5,461 13,136 24,068 26,978(7)
Goodwill
Amortization(8). -- -- -- -- -- 1,891 -- 31 946 946
------- ------- ------- ------- ------- -------- ------- ------- -------- --------
Income (Loss)
from Operations. 2,917 3,217 1,484 3,476 3,563 20,752 1,570 (4,768) 8,465 8,658
Interest Income
(Expense), Net.. 152 127 76 68 89 154 (17) (259) 39 181
Other Income,
Net............. 114 33 140 246 256 297 23 3 240 508
------- ------- ------- ------- ------- -------- ------- ------- -------- --------
Income (Loss)
Before Income
Tax Provision... 3,183 3,377 1,700 3,790 3,908 21,203 1,576 (5,024) 8,744 9,347
Income Tax
Provision....... 1,332 1,300 911 1,651 1,572 9,237 634 800 3,876 4,117
------- ------- ------- ------- ------- -------- ------- ------- -------- --------
Net Income
(Loss).......... $ 1,851 $ 2,077 $ 789 $ 2,139 $ 2,336 $11,966 $ 942 $(5,824) $ 4,868 $ 5,230
======= ======= ======= ======= ======= ======== ======= ======= ======== ========
Net Income (Loss)
Per Share....... $ .59 $ .24 $ .26
======== ======== ========
Weighted Average
Shares
Outstanding(9).. 20,159 20,159 20,159
======== ======== ========
OTHER DATA:
EBITDA(10)....... $ 3,074 $ 3,417 $ 1,853 $ 3,960 $ 4,027 $26,061 $ 1,665 $(4,570) $ 11,132 $ 11,843
======= ======= ======= ======= ======= ======== ======= ======= ======== ========
</TABLE>

<TABLE>
<CAPTION>
FISCAL YEAR ENDED FEBRUARY 28 OR 29, JUNE 30, 1997
--------------------------------------- -------------------------------------
PRO PRO FORMA
1993 1994 1995 1996 1997 ACTUAL(3) FORMA(2) AS ADJUSTED(2)
------- ------- ------- ------- ------- --------- ----------- --------------
(UNAUDITED) (UNAUDITED)
<S> <C> <C> <C> <C> <C> <C> <C> <C>
BALANCE SHEET DATA:
Cash and Cash
Equivalents............ $ 700 $ 186 $ 650 $ 1,774 $ 4,339 $ 5,875 $ 10,214 $ 9,457
Working Capital......... 3,633 3,473 4,561 3,285 6,337 7,425 (13,359) 29,303
Total Assets............ 12,438 15,221 23,528 28,282 27,153 64,942 174,284 173,330
Total Debt.............. -- -- -- -- 1,290 31,045 46,022 2,107
Preferred Stock......... -- -- -- -- -- 17,121 19,271 --
Shareholders' Equity.... 3,257 2,175 5,955 6,373 5,990 (10,998) 25,468 118,618
</TABLE>
- -------
(1) Concurrent with the IPO, the Company intends to change its fiscal year end
from February 28 to December 31.
(2) Pro forma financial data give effect to the completed and pending
acquisitions that are described in Unaudited Pro Forma Combined Financial
Statements of the Company, as if they had all occurred at the beginning of
each period presented. Such results are not necessarily indicative of the
results the Company would have obtained had these events actually occurred
on January 1, 1996 for the Income Statement Data or on June 30, 1997 for
the Balance Sheet Data. Pro forma as adjusted financial data give effect
to a reduction in interest expense as a result of reductions in
indebtedness upon application of a portion of the net proceeds to the
Company from the IPO and the redemption of preferred stock.
(3) The Company's acquisitions of the Pre-IPO Companies and Group Maintenance
America Corp. have been accounted for as purchases and, accordingly, the
operations of these acquired businesses are included in the financial data
from the effective date of their respective acquisition.
(4) Includes non-recurring non-cash compensation expense of $7.0 million
related to the reverse acquisition of GroupMAC Parent during the four
months ended June 30, 1997, which is excluded in the Pro Forma As Adjusted
Six Months Ended June 30, 1997. Reflects a decrease of $11.1 million, $4.2
million and $5.2 million for the Pro Forma As Adjusted year ended December
31, 1996, and the Pro Forma As Adjusted six months ended June 30, 1996 and
1997, respectively, for pro forma reductions in salaries, bonuses and
benefits to former owners of the GroupMAC Companies to which they have
agreed prospectively.
(5) Includes $2.4 million for compensation expense resulting from revaluation
of warrants.
(6) Includes $0.5 million of expenses for the formation and build-up of
corporate management and infrastructure.
(7) Includes $1.6 million of expenses for the formation and build-up of
corporate management and infrastructure.
(8) Consists of amortization recorded or to be recorded, as a result of the
acquisition of GroupMAC Companies, over a 40-year period and computed on
the basis described in the Notes to the Unaudited Pro Forma Combined
Financial Statements of the Company.
(9) Computed on a basis described in Note 4 of Notes to Unaudited Pro Forma
Combined Financial Statements of the Company.
(10) Represents earnings before interest, taxes, depreciation and amortization
("EBITDA"). Based on its experience in the industry, the Company believes
that EBITDA is an important tool for measuring the performance of
companies in the industry (including potential acquisition targets) in
several areas such as liquidity, operating performance and leverage. In
addition, lenders use EBITDA as a criterion in evaluating companies in
the industry and the Company's financing arrangement contains covenants
in which EBITDA is used as a measure of financial performance. The EBITDA
measure for the Company may not be consistent with similarly titled
measures for other companies. EBITDA should not be considered by a
shareholder of MMI Common Stock as an alternative to operating or net
income (as determined in accordance with GAAP) as an indicator of the
Company's performance or to cash flow from operations (as determined in
accordance with GAAP) as a measure of liquidity. See the comparative
historical statements of cash flows included herein and "Management's
Discussion of Financial Condition and Results of Operations" and "--
Liquidity and Capital Resources" for discussion of other measures of
performance determined in accordance with GAAP and the Company's sources
and applications of cash flow.

43
<PAGE>

SELECTED FINANCIAL DATA OF MMI

(IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
PRO FORMA HISTORICAL PRO FORMA AS
AS ADJUSTED(1) SIX MONTHS ENDED ADJUSTED SIX MONTHS
DECEMBER 31, YEAR ENDED JUNE 30, ENDED JUNE 30,
------------------------------------------- DECEMBER 31, ----------------------- -------------------
1992 1993 1994 1995 1996 1996 1996 1997 1996(1) 1997(1)
------- ------- ------- ------- ------- -------------- ----------- ----------- ----------- -------
(UNAUDITED) (UNAUDITED) (UNAUDITED)
----------- ----------- -----------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
CONSOLIDATED INCOME
STATEMENT DATA:
Revenues........... $45,265 $40,328 $42,807 $50,372 $71,598 $66,059 $38,980 $41,973 $36,382 $38,836
Gross Profit....... 7,920 8,497 8,055 9,660 10,024 9,686 4,678 5,885 4,792 5,385
Selling, General
and Administrative
Expenses.......... 7,256 8,015 7,238 8,652 8,785 7,632 4,283 4,279 3,706 3,788
Goodwill Amortiza-
tion.............. -- -- -- -- -- -- -- -- -- --
------- ------- ------- ------- ------- ------- ------- ------- ------- -------
Income from Opera-
tions............. 664 482 817 1,008 1,239 2,054 395 1,606 1,086 1,597
Interest Income
(Expense), Net.... (307) (411) (295) (405) (593) (520) (275) (258) (244) (214)
Other Income, Net.. 45 43 2 52 (4) 8 87 185 67 167
------- ------- ------- ------- ------- ------- ------- ------- ------- -------
Income Before In-
come Tax Provi-
sion.............. 402 114 524 655 642 1,542 207 1,533 909 1,550
Income Tax Provi-
sion.............. 160 42 202 266 257 574 93 569 347 569
------- ------- ------- ------- ------- ------- ------- ------- ------- -------
Net Income......... $ 242 $ 72 $ 322 $ 389 $ 385 $ 968 $ 114 $ 964 $ 562 $ 981
======= ======= ======= ======= ======= ======= ======= ======= ======= =======
Net Income Per
Share............. $ 8.26 $ 7.57
======= =======
Weighted Average
Shares
Outstanding....... 117 130
======= =======
OTHER DATA:
EBITDA(2).......... $ 940 $ 755 $ 1,102 $ 1,364 $ 1,656 $ 2,440 $ 681 $ 2,022 $ 1,332 $ 1,974
======= ======= ======= ======= ======= ======= ======= ======= ======= =======
</TABLE>

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30, 1997
---------------------------------- ------------------------
PRO PRO FORMA
1992 1993 1994 1995 1996 ACTUAL FORMA AS ADJUSTED
------ ------ ------ ------ ------ ------ ----- -----------
<S> <C> <C> <C> <C> <C> <C> <C> <C>
CONSOLIDATED BALANCE
SHEET DATA:
Cash and Cash
Equivalents............ $ 6 $ 11 $ 32 $ -- $ -- $ -- $-- $ --
Working Capital......... 1,396 2,006 1,807 2,229 2,325 3,256 -- 2,990
Total Assets............ 11,793 10,333 10,949 15,213 19,319 20,851 -- 19,952
Total Debt.............. 3,107 2,137 2,349 3,672 6,280 5,630 -- 5,630
Preferred Stock......... -- -- -- -- -- -- -- --
Shareholders' Equity.... 2,435 2,525 2,823 3,317 3,795 4,823 -- 4,362
</TABLE>
- -------
(1) Pro forma financial data give effect to the divestiture by MMI of the
MacDonald-Miller Residential Division.
(2) Represents earnings before interest, taxes, depreciation and amortization
("EBITDA"). Based on its experience in the industry, the Company believes
that EBITDA is an important tool for measuring the performance of
companies in the industry in several areas such as liquidity, operating
performance and leverage. The EBITDA measure for MMI may not be consistent
with similarly titled measures for other companies. EBITDA should not be
considered by a shareholder of MMI Common Stock as an alternative to
operating or net income (as determinined in accordance with GAAP) as an
indicator of MMI's performance or to cash flow from operations (as
determined in accordance with GAAP) as a measure of liquidity. See the
comparative historical statements of cash flows included herein.

44
<PAGE>

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
AND RESULTS OF OPERATIONS

The following discussion should be read in conjunction with the historical
financial statements and related notes of the Company, all financial
statements of the GroupMAC Companies presented herein and Selected Historical
and Pro Forma Financial Data included elsewhere in this Proxy
Statement/Prospectus.

INTRODUCTION

The Company's revenues are derived from providing new installation services
and maintenance, repair and replacement services for HVAC, plumbing,
electrical and other systems to residential and commercial customers.
Approximately 54% of the company's pro forma combined 1996 revenues of $307.5
million were derived from new installation services and 46% were attributable
to maintenance, repair and replacement services. Maintenance, repair and
replacement revenues are recognized as the services are performed, except for
service contract revenue which is recognized ratably over the life of the
contract. Revenues from fixed price installation and retro-fit contracts are
generally accounted for on a percentage-of-completion basis, using the cost-
to-cost method.

Cost of services consists primarily of components, parts and supplies
related to the Company's new installation and maintenance, repair and
replacement services, salaries and benefits of service and installation
technicians, subcontracted services, depreciation, fuel and other vehicle
expenses and equipment rentals. Selling, general and administrative expenses
consist primarily of compensation and related benefits for owners,
administrative salaries and benefits, advertising, office rent and utilities,
communications and professional fees. Certain owners and certain key employees
of the GroupMAC Companies have agreed to reductions totaling $11.1 million in
fiscal 1996 in their compensation and related benefits in connection with
their acquisition by the Company, which have been reflected as a pro forma
adjustment in the Unaudited Pro Forma Combined Statement of Operations. Such
reductions in salaries, bonuses and benefits are in accordance with the terms
of employment agreements.

The Company's diversified business mix is reflected to varying degrees in
its gross margins. The Company's businesses performing primarily maintenance,
repair and replacement services in the residential markets tend to have higher
gross margins, averaging 37.4% for fiscal 1996. The combined gross margin for
GroupMAC Companies providing primarily maintenance, repair and replacement
services in the commercial markets during fiscal 1996 was 27.2%. On the
average, GroupMAC Companies primarily engaged in residential new installation
services have lower gross margins. Such companies' combined gross margin for
fiscal 1996 was 21.2%. The company primarily providing HVAC services in the
residential new installation market had a gross margin of 28.5%; which was
somewhat offset by the companies providing primarily plumbing service to this
market at gross margins ranging from 10.0% to 14.7%. Future consolidated gross
margins may vary depending on, among other things, shifts in the business mix
within the GroupMAC Companies as well as the impact of future acquisitions on
the business mix.

The Company believes that it will, and in certain cases has already begun
to, realize savings from (i) greater volume discounts from suppliers of
components, parts and supplies; (ii) consolidation of insurance and bonding
programs; (iii) other general and administrative expenses such as training and
advertising; and (iv) the Company's ability to borrow at lower interest rates
than most, if not all, of the GroupMAC Companies. Offsetting these savings
will be costs related to the Company's new corporate management, costs
associated with being a public company and integration costs.

The Company recorded a non-recurring, non-cash compensation charge of
$206,000 during the fourth quarter of 1996 relating to certain shares of
Common Stock sold to management, representing the difference between the
amount paid for the shares and the estimated fair value of the shares on the
date of sale. This non-recurring compensation charge is not included in the
Pro Forma Combined Financial Statements.

45
<PAGE>

As a result of the acquisition of the GroupMAC Companies, $75.7 million,
representing the excess of the fair value of the consideration paid over the
fair value of the net assets to be acquired, will be recorded as goodwill on
the Company's balance sheet. Goodwill will be amortized as a non-cash charge
to the income statement over a 40-year period. The pro forma impact of this
amortization expense, which is substantially non-deductible for tax purposes,
is $1.9 million per year on an after-tax basis.

COMBINED RESULTS OF OPERATIONS

The combined results of operations of the GroupMAC Companies for the periods
presented do not represent combined results of operations presented in
accordance with generally accepted accounting principles, but are only a
summation of the revenues, cost of services and selling, general and
administrative expenses of the individual GroupMAC Companies on an historical
basis. The combined results of operations assume that each of the GroupMAC
Companies was combined from the beginning of each period presented. The
combined results also exclude the effect of pro forma adjustments and may not
be comparable to, and may not be indicative of, the Company's post-combination
results of operations because (i) the GroupMAC Companies were not under common
control or management during the periods presented; (ii) the Company will
incur incremental costs for its corporate management and the costs of being a
public company; (iii) the Company will use the purchase method to record the
acquisitions of the GroupMAC Companies at different points in time, resulting
in the recording of goodwill that will be amortized over 40 years; and (iv)
the combined data does not reflect the potential benefits and cost savings the
Company expects to realize when operating as a combined entity.

The following table sets forth certain unaudited combined financial data for
the periods indicated (dollars in thousands).

<TABLE>
<CAPTION>
FISCAL YEAR(1) SIX MONTHS ENDED JUNE 30,
---------------------------------------------- -------------------------------
1994 1995 1996 1996 1997
-------------- -------------- -------------- -------------- ---------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Revenues................ $235,234 100.0% $258,834 100.0% $307,507 100.0% $151,396 100.0% $157,941 100.0%
Cost of Services........ 178,748 76.0 196,847 76.1 235,911 76.7 117,917 77.9 121,359 76.8
-------- ----- -------- ----- -------- ----- -------- ----- -------- -----
Gross Profit............ 56,486 24.0 61,987 23.9 71,596 23.3 33,479 22.1 36,582 23.2
Selling, General and Ad-
ministrative
Expenses............... 49,410 21.0 53,143 20.5 60,162 19.6 28,319 18.7 39,273 24.9
-------- ----- -------- ----- -------- ----- -------- ----- -------- -----
Income (Loss) from Oper-
ations................. 7,076 3.0 8,844 3.4 11,434 3.7 5,160 3.4 (2,691) (1.7)
</TABLE>
- --------
(1) Several of the individual GroupMAC Companies have fiscal year ends that
differ from December 31, which is the year end all of the GroupMAC
Companies will use concurrent with the IPO.

Unaudited Six Months Ended June 30, 1997 Compared to Unaudited Six Months
Ended June 30, 1996

Revenues. Revenues increased $6.5 million, or 4.3%, from $151.4 million for
the six months ended June 30, 1996 to $157.9 million for the six months ended
June 30, 1997. The increase in revenues was primarily volume driven and was
attributable to continuing strength in the Seattle, Washington and Portland,
Oregon commercial markets with respect to MMI, increased market penetration in
certain Ohio markets by Airtron, incremental business from existing customers
at Masters and incremental service agreements secured by Linford. Of the 24
GroupMAC Companies, 18 reported an increase in revenues from the six month
period ended June 30, 1996 to the corresponding period in 1997.

Gross Profit. Gross profit increased $3.1 million, or 9.3%, from $33.5
million for the six months ended June 30, 1996 to $36.6 million for the six
months ended June 30, 1997. Gross margin increased from 22.1% to 23.2% from
the six month period ended June 30, 1996 to the corresponding period in 1997.
The increase in gross profit was primarily attributable to the overall revenue
increase coupled with lower material costs at Airtron, an increase in higher
margin special project and tenant improvement work at MMI and an increase in
higher margin replacement sales at Willis.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $11.0 million, or 38.9%, from $28.3 million
for the six months ended June 30, 1996 to $39.3 million for the six months
ended June 30, 1997. The increase was primarily attributable to (i) a non-
recurring, non-cash

46
<PAGE>

compensation expense of $7.0 million related to the reverse acquisition of
GroupMac Parent, (ii) $844,000 of the increase is due to additional
compensation paid to owners of the individual companies and (iii) $2.4 million
related to the formation and build-up of the corporate management
infrastructure necessary to build the Company through acquisitions and manage
the consolidated GroupMAC Companies. As a percentage of revenues, selling,
general and administrative expenses increased from 18.7% to 24.9% from the six
month period ended June 30, 1996 compared to the corresponding period in 1997.

Unaudited Fiscal Year 1996 Compared to Unaudited Fiscal Year 1995

Revenues. Revenues increased $48.7 million, or 18.9%, from $258.8 million in
fiscal 1995 to $307.5 million for fiscal 1996. The increase in revenues was
primarily volume driven and was attributable to an increase in all sectors of
MMI's business, particularly contracted "design and build" projects,
retrofits, remodeling and technical services; increased residential HVAC new
installation revenue at Airtron; and increased residential HVAC and plumbing
installation revenues at Masters. Additionally, other companies providing
primarily commercial services increased revenues by $8.0 million, or 20.8%,
for the period and companies providing primarily residential services
increased revenues by $5.8 million or 13.4% for the period. Of the 24 GroupMAC
Companies, 22 reported an increase in revenues from fiscal 1995 to 1996, most
of which were due to increases in volume.

Gross Profit. Gross profit increased $9.6 million, or 15.5%, from $62.0
million in fiscal 1995 to $71.6 million in fiscal 1996. Gross margin declined
slightly from 23.9% to 23.3% from fiscal 1995 to fiscal 1996. Approximately
54% of the increase in gross profit was attributable to increased sales volume
at Airtron, Masters and K&N at consistent or slightly higher gross margins
between the periods coupled with an increase in sales volume at MMI, although
at lower gross margins. The decline in gross margin at MMI largely resulted
from a higher mix of larger contracts that typically have lower margins. The
remaining residential and commercial service companies contributed 28% and
19%, respectively, to the increase in gross profit which resulted from both
volume increases and, in the residential services group, margin increases.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $7.1 million, or 13.4%, from $53.1 million
in fiscal 1995 to $60.2 million in fiscal 1996. Approximately $2.7 million of
the increase was due to additional compensation paid to owners of the
individual businesses, $724,000 was due to the formation and building of the
corporate management infrastructure and the remainder was due to an overall
build-up of administrative infrastructure to manage and control the
significant growth at various companies. As a percentage of revenues, selling,
general and administrative expenses decreased from 20.5% to 19.6% from fiscal
1995 to fiscal 1996.

Unaudited Fiscal Year 1995 Compared to Unaudited Fiscal Year 1994

Revenues. Revenues increased $23.6 million, or 10.0%, from $235.2 million in
fiscal 1994 to $258.8 million in fiscal 1995. The increase in revenues was
primarily attributable to higher volumes in each sector of MMI's business,
particularly in "design and build" projects, retrofits and remodeling;
increased market penetration and additional revenues from existing customers
at Masters; incremental revenues from the purchase of A-1 by A-ABC during
fiscal 1994; a higher volume of "design and build" work at Yale; increased
market share captured at Airtron and the start-up of two new offices in
Austin, Texas and Las Vegas, Nevada by K&N.

Gross Profit. Gross profit increased $5.5 million, or 9.7%, from $56.5
million in fiscal 1994 to $62.0 million in fiscal 1995. The increase in gross
profit was primarily attributable to the higher sales volumes at MMI, Masters,
A-ABC/A-1, Yale, Airtron and K&N. Gross margin remained fairly consistent at
24.0% in fiscal 1994 and 23.9% in fiscal 1995.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $3.7 million, or 7.6%, from $49.4 million in
fiscal 1994 to $53.1 million in fiscal 1995. The increase in selling, general
and administrative expense was largely due to a $2.2 million increase in
compensation paid to owners of the individual businesses. As a percentage of
revenues, selling, general and administrative expenses decreased from 21.0% to
20.5%.

47
<PAGE>

LIQUIDITY AND CAPITAL RESOURCES

Historically, the operations and growth of the GroupMAC Companies have been
financed through internally generated working capital and borrowings from
commercial banks or other lenders. These borrowings are generally secured by
substantially all of the assets of the respective GroupMAC Companies, as well
as personal guarantees of the respective owners. With respect to the Pre-IPO
Companies, a substantial portion of their existing indebtedness was repaid and
refinanced through the Company's borrowing facility immediately following the
closing of each of the transactions. The Company believes that $12.4 million
of the net proceeds of the IPO will be used to repay debt assumed and certain
obligations resulting from the acquisition of the GroupMAC Companies.

In May 1997, the Company entered into a $35 million credit agreement (as
modified to date, the "Original Credit Agreement") with a group of banks
providing for secured facilities consisting of an 18 month revolving credit
line of $3 million, a six-year term loan of $20 million used in connection
with the acquisition of Airtron, and a $12 million term loan facility, having
a final maturity six years after the date of the Original Credit Agreement,
which was used to acquire the Pre-IPO Companies. All of the Company's loan
obligations bear interest at the prime rate. The Original Credit Agreement
contains covenants which, among other matters, restrict or limit the ability
of the Company to pay dividends, incur indebtedness, make capital expenditures
and repurchase capital stock. The Company must also maintain (i) a minimum
level of net worth (deficit) of ($10,111,467) plus 100% of any increase in net
worth resulting from the issuance of any capital stock plus 75% of
consolidated after tax income (adjusted semi-annually), (ii) a ratio of
indebtedness to earnings before interest, taxes, depreciation and amortization
not greater than 3.0 to 1.0, (iii) a ratio of indebtedness to net worth of
3.25 to 1.0 (decreasing to 2.60 in 1998 and 1.50 in 1999) and (iv) a fixed
charge coverage ratio of at least 1.25 to 1.0. As of the date hereof, the
Company is in compliance with these requirements. As of September 30, 1997,
available borrowing capacity under the Original Credit Agreement was $3.0
million.

The Company has received a commitment from Texas Commerce Bank National
Association to provide a new credit facility with an initial borrowing
capacity of up to $75 million upon completion of the Offering and is currently
negotiating the definitive documentation for such facility. There is no
assurance, however, that such facility will be in place prior to the closing
of the Offering. Under the Bank Credit Agreement, the Company must maintain
(i) a minimum level of net worth equal to the net worth at the closing date of
the facility less $750,000 plus 100% of the net proceeds of any equity issued
plus 75% of cumulative net income after the closing date, (ii) a ratio of
indebtedness to earnings before interest, taxes, depreciation and amortization
of less than 2.5 to 1.0, (iii) a ratio of indebtedness to capitalization of
not greater than 55%, (iv) a fixed charge coverage ratio of at least 1.20 to
1.0 and (v) a positive tangible net worth. If such financial covenants were in
place on the date hereof and assuming the Offering and the Acquisitions had
been completed, the Company would be in compliance with those covenants. For
additional information about the proposed terms of this credit facility, see
"Description of Bank Credit Agreement." Management expects to repay all
amounts outstanding under the Original Credit Agreement with net proceeds of
the IPO. The Company may also utilize proceeds of the IPO to pay additional
amounts, if any, due to the former owners of the IPO Acquisition Companies
under working capital adjustments to the purchase prices.

Prior to the closing of the IPO, certain of the IPO Acquisition Companies
that are S corporations may distribute cash and certain non-operating assets
to their shareholders in an amount not to exceed the balances of their
respective accumulated adjustment accounts. In addition, several former owners
of the GroupMAC Companies have the ability to receive additional amounts of
purchase price, payable in cash and Common Stock in 1998, contingent upon the
occurrence of future events. The Company's best estimate of this amount is
approximately $5 million, payable in a combination of cash and shares of
Common Stock.

The Company's primary requirements for capital (other than those related to
acquisitions) consist of purchasing vehicles, inventory and supplies used in
the operation of the business. During fiscal 1996 and the six months ended
June 30, 1997, capital expenditures aggregated $4.0 million and $2.4 million,
respectively.

48
<PAGE>

The Company anticipates that its cash flow from operations will provide cash
in excess of the Company's normal working capital needs, debt service
requirements and planned capital expenditures for property and equipment.

The Company intends to pursue aggressively acquisition opportunities and to
fund future acquisitions through a combination of operating cash flow,
borrowings under the Bank Credit Agreement and issuance of Company Common
Stock.

SEASONAL AND CYCLICAL NATURE OF BUSINESS

The HVAC industry is subject to seasonal variations. Specifically, the
demand for new installations is generally lower during the winter months due
to reduced construction activities during inclement weather and less use of
air conditioning during the colder months. Demand for HVAC services is
generally higher in the second and third quarters. Accordingly, the Company
expects its revenues and operating results generally will be lower in the
first and fourth quarters. Historically, the construction industry has been
highly cyclical. As a result, the Company's volume of business may be
adversely affected by declines in new installation projects in various
geographic regions of the United States. See "Risk Factors--Exposure to
Downturns in Housing Starts or New Commercial Construction" and "--Fluctuation
in Quarterly Operating Results."

INFLATION

Inflation did not have a significant effect on the results of operations of
the GroupMAC Companies for 1994, 1995, 1996 or the six months ended June 30,
1997.

GROUPMAC AND SUBSIDIARIES (FORMERLY AIRTRON)

Airtron was founded in 1970 and custom designs, installs, maintains and
repairs HVAC systems in new and existing homes and businesses from 14
locations in six states. Airtron's revenues for fiscal 1996 were $81.9 million
and income from operations was $3.6 million. Airtron derived 81% of its 1996
revenues from new installation services and 19% from maintenance, repair and
replacement services. Airtron is headquartered in Dayton, Ohio and has its
facilities in New Port Richey and Clearwater, Florida, Indianapolis, Indiana,
Wichita, Kansas, Louisville and Erlanger, Kentucky, Cincinnati, Cleveland,
Columbus and Dayton, Ohio, and Austin, Dallas, Houston and San Antonio, Texas.
Airtron acquired GroupMAC in May 1997 and acquired A-ABC/A-1, Charlie's,
Costner, Hallmark, Jarrell and K&N and the assets of Way Residential in June
1997.

RESULTS OF OPERATIONS--GROUPMAC AND SUBSIDIARIES (FORMERLY AIRTRON)

The following table sets forth certain financial data for the periods
indicated. For comparative purposes, for the six month period ended June 30,
1997, the "Historical Airtron" column excludes the effects of the acquisitions
in May and June 1997. The "GroupMAC and Subsidiaries" column reflects the
consolidated operations of Airtron and such companies from their respective
dates of acquisition (dollars in thousands):

<TABLE>
<CAPTION>
FISCAL YEAR ENDED FEBRUARY 28 OR 29, SIX MONTHS ENDED JUNE 30,
------------------------------------------- --------------------------------------------
HISTORICAL GROUPMAC AND
AIRTRON SUBSIDIARIES
------------- --------------
1995 1996 1997 1996 1997 1997
------------- ------------- ------------- ------------- ------------- --------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Revenues................ $72,226 100.0% $73,765 100.0% $81,880 100.0% $37,127 100.0% $38,676 100.0% $42,844 100.0%
Cost of Services........ 50,460 69.9 52,674 71.4 58,506 71.5 26,918 72.5 27,813 71.9 30,920 72.2
------- ----- ------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Gross Profit............ 21,766 30.1 21,091 28.6 23,374 28.5 10,209 27.5 10,863 28.1 11,924 27.8
Selling, General and
Administrative
Expenses............... 20,282 28.0 17,615 23.9 19,811 24.1 9,470 25.5 9,824 25.4 18,056 42.1
------- ----- ------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Income from Operations.. 1,484 2.1 3,476 4.7 3,563 4.4 739 2.0 1,039 2.7 (6,132) (14.3)
</TABLE>

49
<PAGE>

Unaudited Six Months Ended June 30, 1997 Compared to Unaudited Six Months
Ended June 30, 1996

Revenues. Revenues for Historical Airtron increased $1.6 million, or 4.3%,
from $37.1 million for the six months ended June 30, 1996 to $38.7 million for
the six months ended June 30, 1997. Revenues for GroupMAC and Subsidiaries
increased $5.7 million, or 15.4%, from $37.1 million for the six months ended
June 30, 1996 to $42.8 million for the six months ended June 30, 1997. The
increase in revenues with respect to historical Airtron comparisons was
attributable to Airtron's market penetration in the Columbus, Ohio and Dayton,
Ohio markets. The increase in revenues for GroupMAC and Subsidiaries resulted
from the above-mentioned growth in Historical Airtron and the inclusion of
$4.1 million in revenues from the acquisitions completed during the period.

Gross Profit. Gross profit for Historical Airtron increased $655,000, or
6.4%, from $10.2 million for the six months ended June 30, 1996 to $10.9
million for the six months ended June 30, 1997. Gross margin increased
slightly from 27.5% to 28.1% for the six-month periods ending June 30, 1996
and 1997, respectively. The gross margin increase with respect to Historical
Airtron was primarily due to a reduction in material costs, partially offset
by increased labor costs. Gross profit for GroupMAC and Subsidiaries increased
$1.7 million, or 16.7%, from $10.2 million to $11.9 million. As a percentage
of revenues, gross margin increased from 27.5% to 27.8%. The margin increase
resulted from increased gross margin at Historical Airtron partially offset by
somewhat lower gross margin from K&N.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses for Historical Airtron increased $354,000, or 3.7%,
from $9.5 million for the six months ended June 30, 1996 to $9.8 million for
the six months ended June 30, 1997. The overall increase in selling, general
and administrative expenses was primarily due to an increase in compensation,
professional fees and office rent partially offset by a decline in selling
expenses. As a percentage of revenues, selling, general and administrative
expenses remained relatively constant at 25.5% and 25.4% for the six month
periods ending June 30, 1996 and 1997, respectively. Selling, general and
administrative expenses for GroupMAC and Subsidiaries increased $8.6 million,
or 90.5%, from $9.5 million for the six months ended June 30, 1996 to $18.1
million for the six months ended June 30, 1997. This increase resulted from
(i) a non-recurring, non-cash compensation expense of $7.0 million related to
the reverse acquisition of GroupMac Parent and (ii) increased expenses for
Historical Airtron and the inclusion of $1.3 million of selling, general and
administrative expenses related to the companies acquired during the period.
As a percentage of revenues, selling, general and administrative expenses
increased from 25.5% to 42.1% for the six months ended June 30, 1996 and 1997,
respectively, as a result of the inclusion of two months of the corporate
overhead expenses of GroupMAC Parent and higher selling, general and
administrative expenses as a percentage of revenues for the companies acquired
during the period and the non-recurring, non-cash compensation expense
discussed above.

Year Ended February 28, 1997 Compared to Year Ended February 29, 1996

Revenues. Revenues increased $8.1 million, or 11.0%, from $73.8 million for
the year ended February 29, 1996 to $81.9 million for the year ended February
28, 1997. The increase in revenues was attributable to increased market
penetration in new residential construction in the Indianapolis, Indiana and
Dallas, Texas markets, resulting in a larger volume of new home starts.

Gross Profit. Gross profit increased $2.3 million, or 10.9%, from $21.1
million for the year ended February 29, 1996 to $23.4 million for the year
ended February 28, 1997. Gross margin remained relatively constant at 28.6%
and 28.5% for the years ending February 29, 1996 and February 28, 1997,
respectively.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $2.2 million, or 12.5%, from $17.6 million
for the year ended February 29, 1996 to $19.8 million for the year ended
February 28, 1997. Such increase was primarily attributable to an increase in
compensation, vehicle leases and professional fees of the Company. As a
percentage of revenues, selling, general and administrative expenses remained
relatively constant at 23.9% and 24.1% for the years ending February 29, 1996
and February 28, 1997, respectively.

50
<PAGE>

Year Ended February 29, 1996 Compared to Year Ended February 28, 1995

Revenues. Revenues increased $1.6 million, or 2.2%, from $72.2 million for
the year ended February 28, 1995 to $73.8 million for the year ended February
29, 1996. The increase in revenues was attributable to increased sales volume
from new residential construction through the capture of additional market
share in the Indianapolis, Indiana and Dallas, Texas markets.

Gross Profit. Gross profit decreased $675,000, or 3.1%, from $21.8 million
for the year ended February 28, 1995 to $21.1 million for the year ended
February 29, 1996. Gross margin declined from 30.1% to 28.6%. The decrease in
gross profits was primarily attributable to higher material costs.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses decreased $2.7 million, or 13.3%, from $20.3 million
for the year ended February 28, 1995 to $17.6 million for the year ended
February 29, 1996. As a percentage of revenues, selling, general and
administrative expenses decreased from 28.0% to 23.9% due to a significantly
higher non-cash compensation charge in fiscal 1995 to accrue for the change in
market value of stock appreciation rights and warrants.

LIQUIDITY AND CAPITAL RESOURCES--GROUPMAC AND SUBSIDIARIES (FORMERLY AIRTRON)

From March 1, 1994 through the six months ended June 30, 1997, Historical
Airtron generated a net $9.7 million from operating activities. Net income,
depreciation, deferred taxes and non-cash compensation generated $12.4 million
and changes in asset and liability accounts utilized a net $2.7 million,
principally due to a $3.3 million increase in accounts receivable partially
offset by increases in accounts payable and accrued expenses.

Cash used in investment activities by Historical Airtron from March 1, 1994
through the six months ended June 30, 1997, was primarily attributable to
purchases of property and equipment of $1.0 million and was partially offset
by proceeds from sales of property and equipment. Cash used in financing
activities by Historical Airtron was primarily attributable to purchases of
stock and warrants from selling shareholders totaling $5.5 million.

Historical Airtron had working capital of $7.1 million as of June 30, 1997
and no long-term debt outstanding. GroupMAC and Subsidiaries had working
capital of $7.4 million as of June 30, 1997 and had outstanding long-term debt
of $26.5 million, which primarily resulted from the financing of the
acquisitions of GroupMAC Parent, A-ABC/A-1, Hallmark, K&N, Costner, Charlie's,
Jarrell and Way. See "Combined Results of Operations--Liquidity and Capital
Resources."

MMI-HISTORICAL

MMI was founded in 1965 and provides a full range of HVAC system services to
commercial, industrial and residential customers in the Northwestern United
States including design and engineering; fabrication and installation of sheet
metal, piping, plumbing and controls; and HVAC service and maintenance. MMI's
revenues for fiscal 1996 were $71.6 million and income from operations was
$1.2 million. MMI derived 55% of its 1996 revenues from maintenance, repair
and replacement services, 38% from new installation services, and 7% from
residential heating and air conditioning. MMI is headquartered in Seattle,
Washington and has facilities in Seattle and Redmond, Washington, and
Portland, Oregon. See "Information Regarding MMI."

51
<PAGE>

RESULTS OF OPERATIONS-MMI-HISTORICAL

The following table sets forth certain financial data for the periods
indicated (dollars in thousands).

<TABLE>
<CAPTION>
FISCAL YEAR ENDED DECEMBER 31, SIX MONTHS ENDED JUNE 30,
----------------------------------------- ---------------------------
1994 1995 1996 1996 1997
------------- ------------- ------------- ------------- -------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Revenues................ 42,807 100.0% 50,372 100.0% 71,598 100.0% 38,980 100.0% 41,973 100.0%
Cost of Services........ 34,752 81.2% 40,712 80.8% 61,574 86.0% 34,302 88.0% 36,088 86.0%
------ ------ ------ ------ ------ ------ ------ ------ ------ ------
Gross Profit............ 8,055 18.8% 9,660 19.2% 10,024 14.0% 4,678 12.0% 5,885 14.0%
Selling, General and
Administrative
Expenses............... 7,238 16.9% 8,652 17.2% 8,785 12.3% 4,283 11.0% 4,279 10.2%
------ ------ ------ ------ ------ ------ ------ ------ ------ ------
Income from Operations.. 817 1.9% 1,008 2.0% 1,239 1.7% 395 1.0% 1,606 3.8%
</TABLE>

Unaudited Six Months Ended June 30, 1997 Compared to Unaudited Six Months
Ended June 30, 1996

Revenues. Revenues increased $3 million or 7.7% from $39 million for the six
months ended June 30, 1996 to $42 million for the six months ended June 30,
1997. The increase in revenue was attributable to continuing strength in the
company's Northwest commercial markets, principally Seattle, Washington and
Portland, Oregon, including a $20 million contract with a large software
company to be completed in 1997, a 32% increase in revenues from the company's
Special Projects and Tenant Improvement operations, a 9% increase in revenues
from the company's Commercial Service operations, and a 21% increase from the
company's residential HVAC operation.

Gross Profit. Gross Profit increased $1.2 million or 25.5% from $4.7 million
for the six months ended June 30, 1996 to $5.9 million for the six months
ended June 30, 1997. Gross margin increased from 12.0% for the first six
months of 1996 to 14.0% for the same period of 1997. The gross profit increase
is attributable principally to higher volume and realized margins in the
company's Special Projects and Tenant Improvement, and Commercial Service
operations.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses remained the same at $4.3 million for the six months
ended June 30, 1996 to the six months ended June 30, 1997. As a percentage of
revenues, selling, general and administrative expenses decreased marginally
from 11% for the first six months of 1996, to 10.2% for the same period of
1997.

Year Ended December 31, 1996 Compared to Year Ended December 31, 1995

Revenues. Revenues increased $21.2 million, or 42% from $50.4 million for
the year ended December 31, 1995 to $71.6 million for the year ended December
31, 1996. The increase in revenues was attributable to a 15% or $1.6 million
increase in revenues from Service and Maintenance operations, a 23% or $2.0
million increase in revenues from the company's Special Projects and Tenant
Improvement operations, a 14% or $.7 million increase in revenues from
Residential operations, with the remaining $17 million increase attributable
to contracted design and build projects, HVAC system retrofits and remodels,
lighting energy retrofits and technical services, representing a revenue
increase of 65.4% over 1995 from those sources, with the increase being
primarily volume driven and directly related to the company's effort to
increase its market presence in the Seattle, Washington and Portland, Oregon
metropolitan areas, and fueled by continuing strength of commercial activity
in the Northwest.

Gross Profit. Gross profit increased $.3 million, or 3.1%, from $9.7 million
for the year ended December 31, 1995 to $10.0 million for the year ended
December 31, 1996. Gross margin decreased from 19.2% to 14.0% due to the
acceptance and performance of certain lower margin projects and increased
direct costs related to the rapid revenue growth experienced in 1996.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $.1 million, or 1.1%, from $8.7 million for
the year ended December 31, 1995 to $8.8 million for the year ended

52
<PAGE>

December 31, 1996. This increase was directly attributable to incremental
costs incurred to implement a job cost and accounting software conversion and
other management information systems processes and infrastructure. As a
percentage of revenues, selling, general and administrative expenses decreased
from 17.2% to 12.3% due to the increased revenue levels.

Year Ended December 31, 1995 Compared to Year Ended December 31, 1994

Revenues. Revenues increased $7.6 million, or 17.8%, from $42.8 million for
the year ended December 31, 1994 to $50.4 million for the year ended December
31, 1995. The increase in revenues was attributable to a $1.1 million or 10.5%
increase in revenues from Service and Maintenance operations, a $1.8 million
or 27.8% increase in revenues from the company's Special Projects and Tenant
Improvement operations, a $1.6 million or 48.6% increase in revenues from the
company's Residential HVAC operations, and a $3.1 million or 12.6% increase in
revenues from installation operations, including design and build projects,
retrofits and remodeling. The broad-based increase in revenues was primarily
volume driven and attributable to generally increasing activity in the
company's principal Seattle-area market, and a continuing effort focused on
increasing the underlying base of service and maintenance business.

Gross Profit. Gross profit increased $1.6 million, or 19.8%, from $8.1
million for the year ended December 31, 1994 to $9.7 million for the year
ended December 31, 1995. Gross margin increased slightly from 18.8% to 19.2%
for the years ending December 31, 1994 and 1995, respectively.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $1.5 million, or 20.8%, from $7.2 million
for the year ended December 31, 1994 to $8.7 million for the year ended
December 31, 1995. This increase was attributable generally to the higher
level of revenues and approximately $.2 million relating to the initial stages
of the aforementioned job cost and accounting software conversion and other
management information system processes and infrastructure that continued into
1996. As a percentage of revenues, selling, general and administrative
expenses increased from 16.9% to 17.2% for the years ending 1994 and 1995,
respectively.

LIQUIDITY AND CAPITAL RESOURCES--MMI-HISTORICAL

From January 1, 1994 through the six months ended June 30, 1997, MMI
utilized a net $1.2 million from operations, generated principally from net
income plus depreciation and amortization, and short term bank financing
directed to support the growth in operating revenues and the related
investment in property and equipment. Net income and depreciation generated
$3.3 million and changes in asset and liability accounts utilized a net $4.5
million, principally due to an $8.2 million increase in accounts receivable
partially offset by corresponding increases in accounts payable and accrued
expenses.

Net cash used in investment activities was primarily attributable to
equipment and to real estate held for investment.

Net cash provided by financing activities was primarily attributable to the
issuance and redemption of common stock, long term bank financing related to
capital expenditures and real estate held for investment and short term bank
financing utilized to increase working capital.

As of June 30, 1997, MMI had working capital of $3.3 million and $.7 million
of long-term debt outstanding.

MMI-PRO FORMA

In connection with and immediately prior to the Merger, MMI will distribute
the net assets of MacDonald-Miller Residential, a division of MacDonald-Miller
Company, Inc., in a tax-free distribution followed by the acquisition of
MacDonald-Miller Residential by certain shareholders of MMI. The following is
a discussion and

53
<PAGE>

analysis of the financial condition and results of operations of MMI as if the
distribution had been completed as of December 31, 1993. See the MacDonald-
Miller Industries, Inc. Unaudited Pro Forma Consolidated Financial Statements
located elsewhere in this Proxy Statement/Prospectus.

RESULTS OF OPERATIONS--MMI-PRO FORMA

The following table sets forth certain financial data for the periods
indicated (dollars in thousands).

<TABLE>
<CAPTION>
FISCAL YEAR ENDED DECEMBER 31, SIX MONTHS ENDED JUNE 30,
------------------------------------------- ----------------------------
1994 1995 1996 1996 1997
------------- ------------- ------------- ------------- -------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Revenues................ $39,534 100.0% $45,508 100.0% $66,059 100.0% $36,382 100.0% $38,836 100.0%
Cost of Services........ 32,256 81.6 36,927 81.1 56,373 85.3 31,590 86.8 33,451 86.1
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Gross Profit............ 7,278 18.4 8,581 18.9 9,686 14.7 4,792 13.2 5,385 13.9
Selling, General and
Administrative
Expenses............... 6,088 15.4 7,338 16.1 7,632 11.6 3,706 10.2 3,788 9.8
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Income from Operations.. 1,190 3.0 1,243 2.8 2,054 3.1 1,086 3.0 1,597 4.1
</TABLE>

Six Months Ended June 30, 1997 Compared to Unaudited Six Months Ended June
30, 1996

Revenues. Revenues increased $2.4 million, or 6.6%, from $36.4 million for
the six months ended June 30, 1996 to $38.8 million for the six months ended
June 30, 1997. The increase in revenues was attributable to continuing
strength in the company's Northwest commercial markets, principally Seattle,
Washington and Portland, Oregon, including a $20 million contract with a large
software company to be completed in 1997, a 32% increase in revenues from the
company's Special Projects and Tenant Improvement operations, and a 9%
increase in revenues from the company's Commercial Service operations.

Gross Profit. Gross Profit increased $593,000, or 12.4%, from $4.8 million
for the six months ended June 30, 1996 to $5.4 million for the six months
ended June 30, 1997. Gross margin increased from 13.2% for the first six
months of 1996 to 13.9% for the same period of 1997. The gross profit increase
was attributable principally to higher volume and realized gross margins in
the MacDonald-Miller's Special Projects and Tenant Improvement operations.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $82,000, or 2.2%, from $3.7 million for the
six months ended June 30, 1996 to $3.8 million for the six months ended June
30, 1997. Both the dollar and percentage of revenue changes were attributable
to the higher revenue levels in 1997 compared to 1996. As a percentage of
revenues, selling, general and administrative expenses decreased slightly from
10.2% for the six months of 1996 to 9.8% for the same period of 1997.

Year Ended December 31, 1996 Compared to Year Ended December 31, 1995

Revenues. Revenues increased $20.6 million, or 45.3%, from $45.5 million for
the year ended December 31, 1995 to $66.1 million for the year ended December
31, 1996. The increase in revenues was attributable to a 15%, or $1.6 million,
increase in revenues from Service and Maintenance operations, and a 23%, or
$2.0 million, increase in revenues from the company's Special Projects and
Tenant Improvement operations. The $17 million balance of the increase was
attributable to contracted design and build projects, HVAC system retrofits
and remodels, lighting energy retrofits and technical services, together
representing a revenue increase of 65.4% over 1995. This increase was
primarily volume driven and directly related to the company's effort to
increase its market presence in the Seattle, Washington and Portland, Oregon
metropolitan areas and was fueled by continued strength of commercial activity
in the Northwest.

Gross Profit. Gross profit increased $1.1 million, or 12.8%, from $8.6
million for the year ended December 31, 1995 to $9.7 million for the year
ended December 31, 1996. Gross margin decreased from 18.9% to 14.7% due to the
acceptance of certain lower margin projects and increased direct costs related
to the rapid revenue growth experienced in 1996.

54
<PAGE>

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $294,000, or 4.0%, from $7.3 million for the
year ended December 31, 1995 to $7.6 million for the year ended December 31,
1996. The increase in these expenses was directly attributable to incremental
costs incurred to implement a job cost and accounting software conversion and
other management information systems processes and infrastructure. As a
percentage of revenues, selling, general and administrative expenses decreased
from 16.2% to 11.6% due to the increased revenue levels.

Year Ended December 31, 1995 Compared to Year Ended December 31, 1994

Revenues. Revenues increased $6.0 million, or 15.2%, from $39.5 million for
the year ended December 31, 1994 to $45.5 million for the year ended December
31, 1995. The increase in revenues was attributable to a $1.2 million, or
10.5%, increase in revenues from Service and Maintenance operations, a $1.9
million, or 27.8%, increase in revenues from the company's Special Projects
and Tenant Improvement operations, and a $2.9 million, or 12.6%, increase in
revenues from installation operations, including design and build projects,
retrofits and remodeling. The broad-based increase in revenues was primarily
volume driven and attributable to generally increasing activity in the Seattle
area, the Company's principal market, and continued efforts to increase the
underlying base of service and maintenance business.

Gross Profit. Gross profit increased $1.3 million, or 17.8%, from $7.3
million for the year ended December 31, 1994 to $8.6 million for the year
ended December 31, 1995. Gross margin increased from 18.4% to 18.9% for the
years ending December 31, 1994 and 1995, respectively.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $1.2 million, or 19.7%, from $6.1 million
for the year ended December 31, 1994 to $7.3 million for the year ended
December 31, 1995. The increase was attributable generally to the higher level
of revenues and an approximate $200,000 increase relating to the initial
stages of the aforementioned job cost and accounting software conversion and
other management information system processes and infrastructure that
continued into 1996. As a percentage of revenues, selling, general and
administrative expenses increased from 15.4% to 16.1% for the years ending
1994 and 1995, respectively.

LIQUIDITY AND CAPITAL RESOURCES--MMI-PRO FORMA

From January 1, 1994 through the six months ended June 30, 1997, MMI
utilized a net $315,000 from operating activities. Net income and depreciation
generated $4.1 million and changes in asset and liability accounts utilized a
net $4.4 million, principally due to a $7.7 million increase in accounts
receivable partially offset by corresponding increases in accounts payable and
accrued expenses.

Net cash used in investment activities of $2.6 million was primarily
attributable to equipment and to real estate held for investment.

Net cash provided by financing activities of $2.9 million was primarily
attributable to the issuance and redemptions of common stock, long-term bank
financing related to capital expenditures and real estate held for investment
and short-term bank financing utilized to increase working capital.

As of June 30, 1997, MMI had working capital of $3.0 million and $708,000 of
long-term debt outstanding.

MASTERS

Masters, Inc. ("Masters") was founded in 1986 and provides HVAC and plumbing
services in the Washington, D.C. area. Masters' revenues for fiscal 1996 were
$39.8 million and income from operations for fiscal 1996 was $1.5 million.
Masters derived 100% of its 1996 revenues from new installation services.
Masters is headquartered in Gaithersburg, Maryland and has its facilities in
Gaithersburg and Chantilly, Virginia.

55
<PAGE>

RESULTS OF OPERATIONS--MASTERS

The following table sets forth certain financial data for the periods
indicated (dollars in thousands).

<TABLE>
<CAPTION>
FISCAL YEAR ENDED DECEMBER 31, SIX MONTHS ENDED JUNE 30,
------------------------------------------- ----------------------------
1994 1995 1996 1996 1997
------------- ------------- ------------- ------------- -------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Revenues................ $30,327 100.0% $35,160 100.0% $39,826 100.0% $18,279 100.0% $19,318 100.0%
Cost of Services........ 28,018 92.4 31,746 90.3 35,854 90.0 16,639 91.0 17,457 90.4
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Gross Profit............ 2,309 7.6 3,414 9.7 3,972 10.0 1,640 9.0 1,861 9.6
Selling, General and
Administrative
Expenses............... 1,664 5.5 2,373 6.7 2,484 6.3 1,009 5.5 1,197 6.2
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Income from Operations.. 645 2.1 1,041 3.0 1,488 3.7 631 3.5 664 3.4
</TABLE>

Six Months Ended June 30, 1997 Compared to Unaudited Six Months Ended June
30, 1996

Revenues. Revenues increased $1.0 million, or 5.5%, from $18.3 million for
the six months ended June 30, 1996 to $19.3 million for the six months ended
June 30, 1997. The increase in revenues was primarily attributable to an
additional volume of housing starts generated from existing customers.

Gross Profit. Gross profit increased $221,000, or 13.8%, from $1.6 million
for the six months ended June 30, 1996 to $1.9 million for the six months
ended June 30, 1997. Gross margin increased from 9.0% for the six months ended
June 30, 1996 to 9.6% for the six months ended June 30, 1997. The increase was
primarily attributable to a higher mix of fire sprinkler installations that
typically produce higher margins.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $188,000, or 18.8%, from $1.0 million for
the six months ended June 30, 1996 to $1.2 million for the six months ended
June 30, 1997. The increase in selling, general and administrative expenses
was primarily due to staff additions to keep pace with the growth of the
company, increased bad debts and an increase in professional fees. As a
percentage of revenues, selling, general and administrative expenses increased
from 5.5% to 6.2% over the respective periods.

Year Ended December 31, 1996 Compared to Year Ended December 31, 1995

Revenues. Revenues increased $4.6 million, or 13.1%, from $35.2 million for
the year ended December 31, 1995 to $39.8 million for the year ended December
31, 1996. The increase was attributable to an additional volume of housing
starts generated from existing customers and increased market penetration.

Gross Profit. Gross profit increased $558,000, or 16.4%, from $3.4 million
for the year ended December 31, 1995 to $4.0 million for the year ended
December 31, 1996. Gross margins increased slightly from 9.7% to 10.0% for the
years ending 1995 and 1996, respectively.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $111,000, or 4.6%, from $2.4 million for the
year ended December 31, 1995 to $2.5 million for the year ended December 31,
1996. As a percentage of revenues, selling, general and administrative
expenses decreased from 6.7% to 6.3% over the same period. This decrease was
primarily attributable to the net increase in revenue and the relatively fixed
nature of these expenses.

Year Ended December 31, 1995 Compared to Year Ended December 31, 1994

Revenues. Revenues increased $4.9 million, or 16.2%, from $30.3 million for
the year ended December 31, 1994 to $35.2 million for the year ended December
31, 1995. The increase was attributable to an additional volume of housing
starts generated from existing customers, increased market penetration and a
greater volume of HVAC new installations resulting from management efforts to
further expand this service line.

56
<PAGE>

Gross Profit. Gross profit increased $1.1 million, or 47.8%, from $2.3
million for the year ended December 31, 1994 to $3.4 million for the year
ended December 31, 1995. Gross margin increased from 7.6% to 9.7% due to a
greater volume of higher margin HVAC new installations coupled with margin
expansion in plumbing new installations from more efficient production.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $709,000, or 41.7%, from $1.7 million for
the year ended December 31, 1994 to $2.4 million for the year ended December
31, 1995. As a percentage of revenues, selling, general and administrative
expenses increased from 5.5% to 6.7% due to an increase in bad debt expense,
an increase in personnel necessary to effectively manage the Company's rapid
growth and the addition of an executive incentive program.

LIQUIDITY AND CAPITAL RESOURCES--MASTERS

From January 1, 1994 through the six months ended June 30, 1997, Masters
generated $4.2 million in cash from operating activities. Net cash used in
investment activities was primarily attributable to capital expenditures of
$1.8 million. Net cash used in financing activities was primarily attributable
to $2.1 million in dividends paid to the shareholder.

Masters had working capital of $4.0 million as of June 30, 1997 and $765,000
of long-term debt outstanding.

K&N

K&N was founded in 1978 and provides plumbing services to the residential
new construction market in the Dallas, Fort Worth and Austin, Texas and Las
Vegas, Nevada markets. K&N also designs, sells, installs and services HVAC
systems in Dallas and Fort Worth. K&N's revenues for fiscal 1996 were $24.3
million and income from operations was $936,000. K&N derived 89% of its 1996
revenues from new installation services and 11% from maintenance, repair and
replacement services. K&N is headquartered in Arlington, Texas and has
facilities in Arlington and Austin, Texas and Las Vegas, Nevada.

RESULTS OF OPERATIONS--K&N

The following table sets forth certain unaudited financial data for the
periods indicated (dollars in thousands).

<TABLE>
<CAPTION>
FISCAL YEAR ENDED MARCH 31, SIX MONTHS ENDED JUNE 30,
-------------------------------------------- ----------------------------
1995 1996 1997 1996 1997(1)
------------- -------------- ------------- ------------- -------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Revenues................ $21,458 100.0% $22,709 100.0% $24,279 100.0% $11,893 100.0% $12,355 100.0%
Cost of Services........ 18,843 87.8 20,350 89.6 20,705 85.3 10,433 87.7 10,662 86.3
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Gross Profit............ 2,615 12.2 2,359 10.4 3,574 14.7 1,460 12.3 1,693 13.7
Selling, General and
Administrative
Expenses............... 2,275 10.6 2,478 10.9 2,638 10.8 1,349 11.4 1,605 13.0
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Income from Operations.. 340 1.6 (119) (0.5) 936 3.9 111 .9 88 .7
</TABLE>
- --------
(1) The operating results of K&N represent six months of activity, even though
K&N was acquired, for accounting purposes, by Airtron on June 1, 1997.

Unaudited Six Months Ended June 30, 1997 Compared to Unaudited Six Months
Ended June 30, 1996

Revenues. Revenues increased $462,000, or 3.9%, from $11.9 million for the
six months ended June 30, 1996 to $12.4 million for the six months ended June
30, 1997. The increase in revenues was attributable to a higher volume of new
home construction in the Austin and Las Vegas markets.

Gross Profit. Gross profit increased $233,000, or 15.5%, from $1.5 million
for the six months ended June 30, 1996 to $1.7 million for the six months
ended June 30, 1997. Gross margin increased from 12.3% to 13.7% due to
increases in operational efficiency.

57
<PAGE>

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $256,000, or 19.7%, from $1.3 million for
the six months ended June 30, 1996 to $1.6 million for the six months ended
June 30, 1997. The increase in selling, general and administrative expenses
was primarily attributable to additional owners' compensation expense. As a
percentage of revenues, selling, general and administrative expenses increased
from 11.4% to 13.0% for 1996 and 1997 respectively.

Year Ended March 31, 1997 Compared to Unaudited Year Ended March 31, 1996

Revenues. Revenues increased $1.6 million, or 7.0%, from $22.7 million for
the year ended March 31, 1996 to $24.3 million for the year ended March 31,
1997. The increase in revenues was primarily volume driven and attributable to
the expansion of the Company's customer base to include several new home
builders in the Austin and Las Vegas markets.

Gross Profit. Gross profit increased $1.2 million, or 50.0%, from $2.4
million for the year ended March 31, 1996 to $3.6 million for the year ended
March 31, 1997. The increase was due to a decline in production labor and
material costs for start ups in Austin, Texas and Las Vegas, Nevada, and the
savings from the closing during fiscal 1996 of an unsuccessful operation in
Palmdale, California. Gross margin increased from 10.4% to 14.7% for the years
ending March 31, 1996 and 1997, respectively.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $160,000, or 6.4%, from $2.5 million for the
year ended March 31, 1996 to $2.6 million for the year ended March 31, 1997.
As a percentage of revenues, selling, general and administrative expenses
remained relatively constant at 10.9% and 10.8% for the years ending March 31,
1996 and 1997, respectively.

Unaudited Year Ended March 31, 1996 Compared to Unaudited Year Ended March
31, 1995

Revenues. Revenues increased $1.2 million, or 5.6%, from $21.5 million for
the year ended March 31, 1995 to $22.7 million for the year ended March 31,
1996. The increase in revenues was attributable to the new operating
facilities in Austin, Texas and Las Vegas, Nevada and a higher level of new
home construction in the Dallas and Fort Worth metropolitan area.

Gross Profit. Gross profit decreased $256,000, or 9.8%, from $2.6 million
for the year ended March 31, 1995 to $2.4 million for the year ended March 31,
1996. Gross margin decreased from 12.2% to 10.4% for the years ending March
31, 1995 and 1996, respectively. The gross margin decline was primarily
attributable to aggressive pricing and start-up labor costs for the two new
divisions in Austin, Texas and Las Vegas, Nevada.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $203,000, or 8.8% from $2.3 million for the
year ended March 31, 1995 to $2.5 million for the year ended March 31, 1996.
The increase in selling, general and administrative expenses was primarily
attributable to incremental costs relating to the closing of the Palmdale,
California operation and the implementation of a new management information
system. As a percentage of revenues, selling, general and administrative
expenses increased slightly from 10.6% to 10.9%.

LIQUIDITY AND CAPITAL RESOURCES--K&N

From April 1, 1994 through the six months ended June 30, 1997, K&N utilized
$269,000 in cash from operating activities, essentially funding its working
capital needs from operations.

Net cash used in investment activities from April 1994 through June 30, 1997
was attributable to capital expenditures of $2.2 million, primarily relating
to the consolidation of offices in the Dallas-Fort Worth metropolitan area,
the start up of the Austin, Texas and Las Vegas, Nevada operations and fleet
expansion. Financing activities generated a net increase of $2.4 million from
the issuance of long-term debt and net borrowings from shareholders. The funds
were utilized to finance the capital expenditures noted above and for working
capital.

As of June 30, 1997, K&N had working capital of $731,000 and $291,000 of
long-term debt outstanding.

58
<PAGE>

OTHER RESIDENTIAL SERVICE COMPANIES

Pre-IPO Companies

A-ABC and A-1, founded in 1976 and 1994, respectively, provide maintenance,
repair and replacement services for HVAC equipment, as well as home
appliances, to residential customers in the Dallas and Garland, Texas areas.
A-ABC also offers plumbing repair and replacement services. Combined revenues
for fiscal 1996 totaled $8.5 million and combined income from operations
totaled $333,000. A-ABC and A-1 are headquartered in Dallas, Texas.

Callahan Roach and its affiliates provide training and consulting services,
marketing products and pricing programs nationally to over 1,300 independent
service companies, manufacturers and associations. Callahan Roach's revenues
for fiscal 1996 were $1.9 million and income from operations for fiscal 1996
was $8,257. Callahan Roach, founded in 1989, is headquartered in Colorado
Springs, Colorado and has facilities in Atlanta, Georgia, Dublin, Ohio and
Colorado Springs, Colorado.

Costner was founded in 1985 and provides HVAC maintenance, repair and
replacement services to residential customers in the Rock Hill, South Carolina
and Charlotte, North Carolina areas. Costner's revenues for fiscal 1996 were
$3.0 million, and income from operations was $7,487. Costner is headquartered
in Rock Hill, South Carolina.

Hallmark was founded in 1951 and provides HVAC maintenance, repair and
replacement services to residential customers in the Houston and San Antonio,
Texas areas. Hallmark's revenues for fiscal 1996 were $6.5 million, and income
from operations was $8,749. Hallmark is headquartered in Houston, Texas and
has facilities in Houston and San Antonio, Texas.

Jarrell was founded in 1959 and provides plumbing repair services to
residential customers in the Houston, Texas area. Jarrell's revenues for the
fiscal year ended February 28, 1997 were $1.2 million and it had income from
operations of $34,547 during that year. Jarrell is headquartered in Houston,
Texas.

Way Residential was founded in 1977 and provides HVAC services to
residential customers in Houston, Texas. Way Residential's revenues for fiscal
1996 were $659,000 and income from operations was $123,000. Way Residential's
operations have been combined with Hallmark's operations.

IPO Acquisition Companies

Central Carolina Air Conditioning Company ("Central Carolina") was founded
in 1967 and provides HVAC maintenance, repair and replacement services to
residential and commercial customers in the Greensboro and Winston Salem,
North Carolina areas. Central Carolina's revenues for fiscal 1996 were $8.2
million and income from operations was $381,000. In addition, Central Carolina
has deferred $967,000 of service contract revenues due to five-year extended
service contracts. Other GroupMAC Companies typically do not have extended
service contracts in excess of one year. Central Carolina is headquartered in
Greensboro, North Carolina.

Evans Services, Inc. ("Evans") was founded in 1901 and provides plumbing and
HVAC services to residential customers in the Birmingham, Alabama area. Evans'
revenues for fiscal 1996 were $2.3 million and income from operations was
$86,000. Evans is headquartered in Birmingham, Alabama.

Paul E. Smith Co., Inc. ("Paul E. Smith") was founded in 1967 and installs
and maintains, repairs and replaces plumbing systems in new and existing
residences in the Indianapolis, Indiana area. Paul E. Smith's revenues for
fiscal 1996 were $5.6 million and income from operations was $297,000. Paul E.
Smith is headquartered in Indianapolis, Indiana.

Van's Comfortemp Air Conditioning, Inc. ("Van's") was founded in 1965 and
provides HVAC services to residential and light commercial customers in the
Palm Beach-Ft. Lauderdale, Florida area. Van's revenues for fiscal 1996 were
$4.3 million and income from operations was $7,000. Van's is headquartered in
Delray Beach, Florida.

59
<PAGE>

Willis Refrigeration, Air Conditioning & Heating, Inc. ("Willis") was
founded in 1954 and installs, maintains and repairs HVAC systems in new and
existing residences in the greater Cincinnati and northern Kentucky areas.
Willis' revenues for fiscal 1996 were $6.8 million and income from operations
was $542,000 Willis is headquartered in Cincinnati, Ohio.

RESULTS OF OPERATIONS--OTHER RESIDENTIAL SERVICE COMPANIES

The GroupMAC Companies included in the Other Residential Services Companies
derive a majority of their revenues from residential new installation and
maintenance, repair and replacement services. In the aggregate, these 11
companies derived 84% of their revenue in fiscal 1996 from residential
services and 16% from light commercial service. The following table sets forth
certain unaudited financial data for the periods indicated (dollars in
thousands).

<TABLE>
<CAPTION>
FISCAL YEAR(1) SIX MONTHS ENDED JUNE 30,
------------------------------------------- ----------------------------
1994 1995 1996 1996 1997(2)
------------- ------------- ------------- ------------- -------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Revenues................ $38,481 100.0% $43,216 100.0% $48,964 100.0% $23,255 100.0% $24,886 100.0%
Cost of Services........ 25,397 66.0 27,537 63.7 30,628 62.6 14,762 63.5 14,799 59.5
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Gross Profit............ 13,084 34.0 15,679 36.3 18,336 37.4 8,493 36.5 10,087 40.5
Selling, General and
Administrative
Expenses............... 11,432 29.7 14,210 32.9 16,506 33.7 8,082 34.7 8,277 33.2
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Income from Operations.. 1,652 4.3 1,469 3.4 1,830 3.7 411 1.8 1,810 7.3
</TABLE>
- --------
(1) Several of the individual GroupMAC Companies have fiscal year ends that
differ from December 31, which is the year end all of the GroupMAC
Companies will use concurrent with the IPO.
(2) The operating results of the Other Residential Service Companies,
including Hallmark and A-ABC/A-1, represent six months of activity, even
though Hallmark and A-ABC/A-1 were acquired, for accounting purposes, by
Airtron on June 1, 1997.

Unaudited Six Months Ended June 30, 1997 Compared to Unaudited Six Months
Ended June 30, 1996

Revenues. Revenues increased $1.6 million, or 6.9%, from $23.3 million for
the six months ended June 30, 1996 to $24.9 million for the six months ended
June 30, 1997. The increase in revenues was primarily volume driven and
attributable to expansion of Central Carolina's commercial service and
replacement business, an increase in replacement sales at Willis and the
occurrence of a significant light commercial job at Jarrell.

Gross Profit. Gross profit increased $1.6 million, or 18.8%, from $8.5
million for the six months ended June 30, 1996 to $10.1 million for the six
months ended June 30, 1997. Gross margin increased from 36.5% to 40.5% from
the six month period ended June 30, 1996 to the corresponding period in 1997.
The increase in gross margin was attributable to higher margins at Central
Carolina from operational efficiencies and from increased higher margin
replacement sales at Willis.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $196,000, or 2.4%, from $8.1 million for the
six months ended June 30, 1996 to $8.3 million for the six months ended June
30, 1997. As a percentage of revenues, selling, general and administrative
expenses decreased from 34.7% to 33.2% for the six month period ended June 30,
1996 compared to the corresponding period in 1997.

Unaudited Fiscal 1996 Compared to Unaudited Fiscal 1995

Revenues. Revenues increased $5.8 million, or 13.4%, from $43.2 million in
fiscal 1995 to $49.0 million in fiscal 1996. The increase in revenues was
primarily volume driven and attributable to the continued internal expansion
of HVAC services to an appliance company acquired by A-ABC in late 1994, an
acquisition made during early 1996 by Hallmark of an operation in San Antonio
and an aggressive advertising campaign at Costner. Also, revenues increased
significantly at Van's and Willis due to a higher level of replacement sales.

60
<PAGE>

Gross Profit. Gross profit increased $2.6 million, or 16.6%, from $15.7
million in fiscal 1995 to $18.3 million in fiscal 1996. The increase in gross
profit was attributable to the continued internal expansion of HVAC services
at A-1, which was acquired by A-ABC in 1994, an acquisition by Hallmark of a
high margin operation in San Antonio and revenue increases at Costner and
other higher margin companies. Gross margin increased from 36.3% to 37.4% for
fiscal 1995 and 1996, respectively.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $2.3 million, or 16.2%, from $14.2 million
in fiscal 1995 to $16.5 million in fiscal 1996. The increase in selling,
general and administrative expenses was mainly due to the acquisition of an
operation in San Antonio by Hallmark during the period, a higher level of
spending on advertising at Costner and an increase in owner compensation among
all of the residential service companies of $129,000. As a percentage of
revenues, selling, general and administrative expenses increased from 32.9% to
33.7% for fiscal 1995 and 1996, respectively.

Unaudited Fiscal 1995 Compared to Unaudited Fiscal 1994

Revenues. Revenues increased $4.7 million, or 12.2%, from $38.5 million in
fiscal 1994 to $43.2 million in fiscal 1995. The increase in revenues was
primarily volume driven and attributable to incremental revenues from an
acquisition made by A-ABC in late 1994, the expansion of the customer base at
Central Carolina to include the commercial sector and an increased emphasis on
the selling of service agreements and a higher level of replacement revenues
at Van's.

Gross Profit. Gross profit increased $2.6 million, or 19.8%, from $13.1
million in fiscal 1994 to $15.7 million in fiscal 1995. The increase in gross
profits was primarily attributable to the expanded revenue volumes. Gross
margin increased from 34.0% to 36.3% for fiscal years 1994 and 1995,
respectively.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $2.8 million, or 24.6%, from $11.4 million
in fiscal 1994 to $14.2 million in fiscal 1995. As a percentage of revenues,
selling, general and administrative expenses increased from 29.7% to 32.9% due
to incremental overhead at the company acquired in late 1994 by A-ABC,
incremental owners' compensation of $378,000 across the residential service
companies and an overall increase in infrastructure to keep pace with the
internal growth at each company within the group.

OTHER COMMERCIAL SERVICE COMPANIES

Pre-IPO Companies

Charlie's was founded in 1979 and provides plumbing maintenance, repair and
replacement services to commercial and residential customers in the Houston,
Texas area and specializes in the high-rise condominium market in Houston.
Charlie's revenues for fiscal 1996 were $3.1 million, and income from
operations was $65,000. Charlie's is headquartered in South Houston, Texas.

Sibley Services, Incorporated ("Sibley") was founded in 1974 and provides
HVAC and refrigeration maintenance, repair and replacement services to
commercial and industrial customers in the greater Memphis, Tennessee area
which includes northern Mississippi and northeast Arkansas. Sibley also offers
design and build services, including facility automation. Sibley's revenues
for fiscal 1996 were $7.0 million and income from operations was $130,018.
Sibley is headquartered in Memphis, Tennessee.

USA was founded in 1988 and provides marketing products and training
materials to over 100 member companies across the country. USA's revenues for
fiscal 1996 were $763,000 and income from operations was $33,000. USA is
headquartered in Lakewood, Colorado.

IPO Acquisition Companies

All Service Electric, Inc. ("All Service") was founded in 1990 and provides
electrical contracting services (including new installation and repair
services) primarily to commercial customers in the Jacksonville, Florida area.
All Service's revenues for fiscal 1996 were $2.8 million and income from
operations was $687,000. All Service is headquartered in Jacksonville,
Florida.

61
<PAGE>

Arkansas Mechanical Services, Inc. ("Arkansas Mechanical") was founded in
1988 and provides HVAC maintenance, repair and replacement services to
commercial and industrial customers in the greater Little Rock and
Fayetteville, Arkansas areas. Arkansas Mechanical also provides engineering
services for retrofit upgrades and replacements. Arkansas Mechanical's
revenues were $3.3 million and income from operations was $325,000. Arkansas
Mechanical is headquartered in North Little Rock, Arkansas and has facilities
in the North Little Rock and Fayetteville, Arkansas areas.

Linford Service Company ("Linford") was founded in 1960 and provides HVAC
maintenance, repair and replacement to commercial customers throughout
California. Linford's revenues for fiscal 1996 were $11.3 million and the loss
from operations was $267. Linford is headquartered in Oakland, California and
has facilities in Oakland, Ontario, Sacramento, San Diego and San Jose,
California.

Mechanical Services, Inc. ("Mechanical") was founded in 1993 and provides
design and build, engineering and installation services in the mechanical
trades industry in the Little Rock and Fayetteville, Arkansas areas.
Mechanical Services' revenues for fiscal 1996 were $2.9 million and income
from operations was $56,000. Mechanical Services is headquartered in North
Little Rock, Arkansas and has facilities in North Little Rock and
Fayetteville, Arkansas.

Southeast Mechanical Service, Inc. ("Southeast Mechanical") was founded in
1979 and provides HVAC maintenance, repair and replacement services in the
Miami and Fort Lauderdale, Florida areas. Southeast Mechanical's revenues for
fiscal 1996 were $5.3 million and income from operations was $585,000.
Southeast Mechanical is headquartered in Hollywood, Florida.

Yale Incorporated ("Yale") was founded in 1939 and provides HVAC services to
commercial customers throughout Minnesota. Yale's revenues for fiscal 1996
were $10.1 million and income from operations was $405,000. Yale is
headquartered in Minneapolis, Minnesota.

RESULTS OF OPERATIONS--OTHER COMMERCIAL SERVICE COMPANIES

The GroupMAC Companies included in the Other Commercial Services Companies
derive a majority of their revenues from commercial new installation and
maintenance, repair and replacement services. In the aggregate, these nine
companies derive 96% of their revenue from commercial services and 4% of their
revenues from residential services. The following table sets forth certain
unaudited financial data for the periods indicated (dollars in thousands).

<TABLE>
<CAPTION>
FISCAL YEAR(1) SIX MONTHS ENDED JUNE 30,
------------------------------------------- ----------------------------
1994 1995 1996 1996 1997
------------- ------------- ------------- ------------- -------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Revenues................ $33,208 100.0% $38,476 100.0% $46,499 100.0% $24,460 100.0% $23,870 100.0%
Cost of Services........ 23,774 71.6 27,613 71.8 33,845 72.8 17,575 71.9 17,177 72.0
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Gross Profit............ 9,434 28.4 10,863 28.2 12,654 27.2 6,885 28.1 6,693 28.0
Selling, General and
Administrative
Expenses............... 7,669 23.1 9,129 23.7 10,367 22.3 4,703 19.2 5,198 21.7
------- ----- ------- ----- ------- ----- ------- ----- ------- -----
Income from Operations.. 1,765 5.3 1,734 4.5 2,287 4.9 2,182 8.9 1,495 6.3
</TABLE>
- --------
(1) Several of the individual GroupMAC Companies have fiscal year ends that
differ from December 31, which is the year end all of the GroupMAC
Companies will use concurrent with the IPO.

Unaudited Six Months Ended June 30, 1997 Compared to Unaudited Six Months
Ended June 30, 1996

Revenues. Revenues declined $590,000, or 2.4%, from $24.5 million for the
six months ended June 30, 1996 to $23.9 million for the six months ended June
30, 1997. The decrease in revenues was primarily volume driven and
attributable to a $2.0 million decline in revenues at Sibley which resulted
from an internal decision to discontinue a large, low margin customer
relationship. Such decline was offset by growth at Linford from incremental
service agreements and at Mechanical Services from incremental "design and
build" project work.

62
<PAGE>

Gross Profit. Gross profit declined $192,000, or 2.9%, from $6.9 million for
the six months ended June 30, 1996 to $6.7 million for the six months ended
June 30, 1997. The decline in gross profit primarily resulted from the
discontinuance of the customer relationship discussed above. Gross margin
remained consistent at 28.1% and 28.0% for the six month periods ended June
30, 1996 and 1997, respectively.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $494,000, or 10.6%, from $4.7 million for
the six months ended June 30, 1996 to $5.2 million for the six months ended
June 30, 1997. The increase in selling, general and administrative expenses
was primarily attributable to incremental owners' compensation and additional
personnel to support the growth in sales at Linford and an intentional shift
in business mix at Yale toward higher margin service contract work. As a
percentage of revenues, selling, general and administrative expenses increased
from 19.2% to 21.7% over the six month periods ended June 30, 1996 and 1997,
respectively.

Unaudited Fiscal 1996 Compared to Unaudited Fiscal 1995

Revenues. Revenues increased $8.0 million, or 20.8%, from $38.5 million in
fiscal 1995 to $46.5 million in fiscal 1996. The increase in revenues was
primarily volume driven and attributable to incremental service agreements at
Linford, incremental design and build projects at Mechanical Services and an
increase in maintenance, repair and replacement sales at Southeast Mechanical
and Sibley Services.

Gross Profit. Gross profit increased $1.8 million, or 16.5%, from $10.9
million in fiscal 1995 to $12.7 million in fiscal 1996. The largest factor
impacting the increase in gross profit was volume growth in revenues at
Linford, although the growth was at slightly lower margins. Additionally,
significant increases in gross profit were due to rapid service revenue growth
combined with margin expansion at All Service and Yale. Gross margin decreased
slightly from 28.2% to 27.2% between fiscal 1995 and fiscal 1996.

Selling, General and Administrative Expense. Selling, general and
administrative expenses increased $1.3 million, or 14.3%, from $9.1 million in
fiscal 1995 to $10.4 million in fiscal 1996. The overall increase in selling,
general and administrative expenses was due to the expansion and relocation of
facilities as well as an increase in administrative and sales personnel at
Linford. As a percentage of revenues, selling, general and administrative
expenses decreased slightly from 23.7% to 22.3% in fiscal 1996.

Unaudited Fiscal 1995 Compared to Unaudited Fiscal 1994

Revenues. Revenues increased $5.3 million, or 16.0%, from $33.2 million in
fiscal 1994 to $38.5 million in fiscal 1995. The increase in revenues was
primarily volume driven and attributable to an increase in design and build
jobs at Yale and Mechanical and an increase in service agreement volumes at
Linford.

Gross Profit. Gross profit increased $1.5 million, or 16.0%, from $9.4
million in fiscal 1994 to $10.9 million in fiscal 1995. The increase in gross
profit was primarily attributable to a $2.0 million increase in revenues at
Linford at slightly higher margins, volume increases at Yale and Mechanical
and gross margin expansion at Charlie's and Arkansas Mechanical. As a
percentage of revenues, gross margin declined slightly from 28.4% in fiscal
1994 to 28.2% in fiscal 1995.

Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased $1.4 million, or 18.2%, from $7.7 million in
fiscal 1994 to $9.1 million in fiscal 1995. As a percentage of revenues,
selling, general and administrative expenses increased from 23.1% to 23.7% due
primarily to an increase in owners' compensation of $503,000 and personnel
additions necessary to adequately manage the revenue growth at Linford.

63
<PAGE>

INFORMATION REGARDING THE COMPANY

GENERAL

The Company was founded in 1996 to create the leading nationwide provider of
HVAC, plumbing and electrical services to residential and commercial
customers. The Company has completed the purchase of 11 Pre-IPO Companies and
has definitive agreements to acquire an additional 13 IPO Acquisition
Companies, including MMI, upon the closing of its IPO. The initial
capitalization of the Company was provided through private equity capital and
a $35 million acquisition and working capital borrowing facility. This initial
financing allowed the Company to acquire the Pre-IPO Companies, including
Airtron, a residential HVAC service company with new installation and
maintenance, repair and replacement services in 14 cities in six states. The
Company believes Airtron, with revenues in fiscal 1996 of $81.9 million, was
the largest independent residential HVAC service company in the United States.
The combined 1996 revenue of the Pre-IPO Companies was $138.8 million. With
the purchase of the 13 IPO Acquisition Companies, the Company will have
approximately 2,860 employees at operations in 37 cities in 21 states, with
combined 1996 revenues of $307.5 million, and will be among the largest
providers of HVAC, plumbing and electrical services in the United States.

For a description of the transactions pursuant to which the businesses of
the Pre-IPO Companies were acquired and the IPO Acquisition Companies will be
acquired, see "The Acquisitions." The GroupMAC Companies are described below.

<TABLE>
<CAPTION>
1996 REVENUES YEAR
PRE-IPO COMPANIES: ($ IN 000'S)(1) FOUNDED HEADQUARTERS SITE PRIMARY SERVICES
- ------------------ --------------- ------- --------------------- ---------------------------------------------
<S> <C> <C> <C> <C>
Airtron(2)....... $81,880 1970 Dayton, OH Residential & Commercial HVAC
K&N(2)........... 24,279 1978 Arlington, TX Residential Plumbing & HVAC
A-ABC/A-1(2)..... 8,546 1976 Dallas, TX Residential HVAC & Plumbing
Sibley........... 6,962 1974 Memphis, TN Commercial HVAC
Hallmark(2)...... 6,516 1951 Houston, TX Residential & Commercial HVAC
Charlie's........ 3,058 1979 Houston, TX Commercial & Residential Plumbing
Costner.......... 3,042 1985 Rock Hill, SC Residential HVAC & Electrical
Callahan 1,867 1989 Colorado Springs, CO
Roach(2)(3)..... Residential Training, Products & Publications
Jarrell.......... 1,236 1957 Houston, TX Residential Plumbing
USA.............. 763 1988 Lakewood, CO Commercial Training & Member Services
Way Residential.. 659 1977 Houston, TX Residential HVAC
--------
Total........... $138,808
--------
IPO ACQUISITION COMPANIES:
- ----------------------------
MMI(2)........... $ 66,059 1965 Seattle, WA Commercial HVAC, Plumbing & Electrical
Masters(2)....... 39,826 1986 Gaithersburg, MD Residential Plumbing & HVAC
Linford(2)....... 11,305 1960 Oakland, CA Commercial HVAC
Yale............. 10,065 1939 Minneapolis, MN Commercial HVAC
Central
Carolina(2)..... 8,161 1967 Greensboro, NC Residential & Commercial HVAC
Willis........... 6,781 1954 Cincinnati, OH Residential HVAC
Paul E. Smith.... 5,573 1967 Indianapolis, IN Residential Plumbing
Southeast
Mechanical...... 5,282 1979 Hollywood, FL Commercial HVAC
Van's............ 4,289 1965 Delray Beach, FL Residential HVAC
Arkansas
Mechanical(2)... 3,337 1988 North Little Rock, AR Commercial HVAC
Mechanical(2).... 2,900 1993 North Little Rock, AR Commercial HVAC
All Service...... 2,826 1990 Jacksonville, FL Commercial & Residential Electrical
Evans............ 2,295 1901 Birmingham, AL Residential Plumbing & HVAC
--------
Total........... $168,699
--------
Pro Forma
Combined........ $307,507
========
<CAPTION>
SOURCE OF 1996 REVENUES
-------------------------
MAINTENANCE,
NEW REPAIR AND
PRE-IPO COMPANIES: INSTALLATION REPLACEMENT
- ------------------ ------------ ------------
<S> <C> <C> <C>
Airtron(2)....... 81% 19%
K&N(2)........... 89% 11%
A-ABC/A-1(2)..... 0% 100%
Sibley........... 0% 100%
Hallmark(2)...... 0% 100%
Charlie's........ 0% 100%
Costner.......... 0% 100%
Callahan N/A N/A
Roach(2)(3).....
Jarrell.......... 0% 100%
USA.............. N/A N/A
Way Residential.. 0% 100%
Total...........
IPO ACQUISITION COMPANIES:
- -----------------------------------
MMI(2)........... 41% 59%
Masters(2)....... 100% 0%
Linford(2)....... 0% 100%
Yale............. 28% 72%
Central
Carolina(2)..... 17% 83%
Willis........... 59% 41%
Paul E. Smith.... 61% 39%
Southeast
Mechanical...... 0% 100%
Van's............ 4% 96%
Arkansas
Mechanical(2)... 0% 100%
Mechanical(2).... 14% 86%
All Service...... 14% 86%
Evans............ 0% 100%
Total...........
Pro Forma
Combined........ 54% 46%
============ ============
</TABLE>
- -------
(1) Several of the individual GroupMAC Companies have fiscal year ends that
differ from December 31, which is the year end all of the GroupMAC
Companies will use concurrent with the IPO.
(2) Operates through multiple locations.
(3) Includes Callahan/Roach Products & Publications, Inc. ("CRPP") and
Callahan/Roach & Associates ("CRA" and, together with CRPP, "Callahan
Roach").

The consideration paid or to be paid by the Company for each GroupMAC
Company was the result of arm's-length negotiations between representatives of
the Company and representatives of that company and was based generally on the
Company's evaluation of such company's operating results, assets and
capitalization. Certain shareholders and key managers of the GroupMAC
Companies were required to enter into employment agreements containing, among
other things, confidentiality and non-competition provisions.

64
<PAGE>

BUSINESS

GENERAL

The Company offers a comprehensive range of services to residential and
commercial customers in both the new installation and the maintenance, repair
and replacement segments of the HVAC, plumbing and electrical service
industries. The Company's services include installing and maintaining,
repairing and replacing central air conditioning systems, furnaces, heat pumps
and plumbing and electrical systems. Approximately 74%, 23% and 3% of the
Company's pro forma 1996 revenues were derived from HVAC, plumbing and
electrical and other services, respectively. Approximately 59% of pro forma
1996 revenues were derived from residential services and 41% from commercial
services, while 54% of pro forma 1996 revenues were from the new installation
segment and 46% were from the maintenance, repair and replacement services.
Through Callahan Roach and USA, the Company also provides consulting services
and sells products to over 1,300 independent HVAC and plumbing service
companies. The Company believes that its broad service offering and geographic
diversity provide several advantages, including the ability to offer its
commercial and residential customers a single source for a range of services,
to consolidate purchasing power with vendors, to capture business from
customers that operate on a regional and national basis, to mitigate the
effects of seasonality and to balance local or regional economic cycles.

The Company believes that it can maximize its long-term growth and
profitability by participating in both the new installation and the
maintenance, repair and replacement segments of the HVAC, plumbing and
electrical service industries. The new installation business is generally
characterized by higher volume sales to homebuilders, commercial developers
and other large customers. The maintenance, repair and replacement business
generally produces higher margins from services provided to a broader customer
base. The Company intends to focus on growing its maintenance, repair and
replacement business, to capitalize on the higher margins and the more
predictable nature of revenues associated with this segment and to target a
revenue mix of approximately 60% maintenance, repair and replacement and 40%
new installation over time. The Company derives considerable profits and
strategic value from its new installation business, as this segment generates
a database of potential customers for maintenance, repair and replacement
services. The higher volumes associated with consolidating a number of new
installation firms provide purchasing economies of scale that increase the
competitiveness of both the new installation and the maintenance, repair and
replacement segments.

INDUSTRY OVERVIEW

Based on available industry data, the Company believes the HVAC, plumbing
and electrical service industries in the United States represent a market with
annual revenues of approximately $100 billion. The HVAC service industry is
believed to generate approximately $65 billion in annual revenues, the
plumbing service industry generates approximately $19 billion in annual
revenues and the electrical service industry generates approximately $16
billion in annual revenues. The Company also believes these industries are
highly fragmented with over 100,000 businesses, consisting predominantly of
small, owner-operated companies focusing on a single local geographic area and
providing a limited range of services. The Company believes that the majority
of owners in its industry have limited access to adequate capital for
modernization, training and expansion and limited opportunities for liquidity
in their business. As a result of this fragmentation, three publicly traded
consolidators have emerged in these markets. The combined revenues of these
consolidators and the Company represent less than 2% of the revenues for the
HVAC, plumbing and electrical markets.

Growth in the HVAC service industry is affected by a number of factors,
particularly (i) the aging of the installed base of equipment, (ii) the
increasing efficiency, sophistication and complexity of HVAC systems and (iii)
the increasing restrictions on the use of refrigerants commonly used in older
HVAC systems. These factors also mitigate the effect on the HVAC service
industry of economic cycles inherent in the traditional construction industry.
An aging installed base has also positively affected growth in the plumbing
service industry. Industry sources report that 75% of the kitchen market and
65% of the bath market now consist of remodeling rather than

65
<PAGE>

new construction. Growth in electrical services is closely tied to the new
construction markets, although the retrofitting of existing structures is
driven by increased demand for computer networks and other modernization.

The HVAC, plumbing and electrical service industries can be broadly divided
into the new installation segment and the maintenance, repair and replacement
segment. The new installation segment includes the installation of HVAC,
plumbing and electrical systems in new homes and commercial buildings for
contractors, builders, developers and other users. The maintenance, repair and
replacement segment includes the maintenance, repair, replacement and
reconfiguration of existing systems in residential homes and commercial
buildings. In the HVAC industry, the new installation segment represents
approximately 34% of industry revenues, while the maintenance, repair and
replacement segment represents 66% of industry revenues.

The Company believes significant opportunities are available to a well
capitalized, national company employing professionally trained, customer-
oriented service technicians and providing a full complement of high quality
residential and commercial services in an industry that has been characterized
by inconsistent quality, reliability and pricing. In addition, the increasing
complexity of HVAC systems has led to a need for better trained technicians to
install, monitor and service these systems. The cost of recruiting, training
and retaining a sufficient number of qualified technicians makes it more
difficult for smaller HVAC companies to expand their businesses. The Company
also believes the highly fragmented nature of the residential and commercial
service industries will provide it with significant opportunities to
consolidate a large number of existing residential and commercial service
businesses.

OPERATING STRATEGY

The goal of the Company's operating strategy is to increase the revenues and
profitability of the GroupMAC Companies and subsequently acquired businesses,
while maintaining the highest level of service to its customers. The key
elements of the Company's operating strategy are as follows:

ACHIEVE OPERATING EFFICIENCIES. The Company intends to pursue significant
cost savings through the consolidation of purchasing power and to obtain
additional operating efficiencies through the implementation of a variety
of "best practices." It expects to achieve substantial purchasing economies
in the areas of equipment and supplies, service vehicles (including fuel
and maintenance), insurance and benefits, marketing and advertising, long
distance services and a variety of professional services. Callahan Roach
and USA, leading providers of integration, training and business consulting
services to the HVAC industry, will assist the Company in identifying and
refining its best practices and implementing such practices across the
GroupMAC Companies and future acquisitions through a systematic program of
training and consulting. In addition, the Company has recently established
a Council of Presidents consisting of the key operating management of
acquired companies, which will meet regularly to facilitate the sharing of
operating practices, synergies and strategies across the Company.

OPERATE ON A DECENTRALIZED BASIS. The Company intends to retain the
managers of the businesses it acquires, allow them to maintain substantial
responsibility for the day-to-day operations, profitability and growth of
those businesses and provide them with incentives based upon performance.
This will allow the Company to capitalize on the local market knowledge and
customer relationships at each acquired company. The Company believes that
the operating autonomy provided by this decentralized structure, together
with the implementation of reporting systems and financial controls at the
corporate level, will give it a competitive advantage in growing market
share and in attracting additional acquisition candidates.

ATTRACT, DEVELOP AND RETAIN HIGH QUALITY TECHNICIANS. The Company
believes operational success in this industry results from attracting and
retaining a highly trained and motivated workforce in order to deliver
consistently high-quality service at a fair price and to reduce re-work and
other costs. The Company's strategy is to become the employer of choice in
its industry by offering to its employees and managers a market-leading
combination of training, compensation and employee benefits, career
development opportunities and an equity participation in the Company's
success. Over time, the Company intends to develop an internal technical
training program to enhance the skill level of its employees.

66
<PAGE>

ESTABLISH NATIONAL MARKET COVERAGE. The Company intends to expand its
existing relationships with home builders, commercial real estate
developers and property managers and other enterprises by offering
comprehensive HVAC, plumbing and electrical new installation and
maintenance, repair and replacement services on a national or regional
basis. The Company believes that significant demand exists from these
customers to utilize the services of a single company capable of providing
these services and that the GroupMAC Companies' many geographic locations
allow it to respond to this demand. Many of the GroupMAC Companies already
provide local or regional coverage to companies with nationwide operations.
In addition, the Company plans to utilize the customer bases of Callahan
Roach and USA, which are nationwide in scope, to establish an affiliate
network to market services on a national basis.

The Company began to implement its operating strategy following its
acquisition of the Pre-IPO Companies and has already entered into negotiations
with vendors in the areas of equipment and supplies, service vehicles,
casualty insurance, employee benefits, fuel supply arrangements, Yellow Pages
advertising, business forms and uniforms. Callahan Roach personnel have
conducted field visits with the GroupMAC Companies to assess each company's
operating strengths and weaknesses and to identify operating best practices
for use throughout the organization and are currently developing customized
training programs for the management and staff personnel of these companies.
Based on a study of the GroupMAC Companies' existing benefit plans, the
Company intends to implement a program that will preserve or enhance the
overall level of benefits resulting in projected cost savings to the Company.
The Compensation Committee has approved the issuance, after the IPO, of up to
1,976,734 stock options covering all eligible employees of the GroupMAC
Companies. In preparation for creation of a national account marketing
program, the Company is conducting a study of the national and regional
companies currently serviced by one or more of the GroupMAC Companies.

ACQUISITION STRATEGY

The Company's acquisition program is designed to enhance its position in
existing markets and to expand its operations into new markets. The key
elements of the Company's acquisition strategy are as follows:

ACQUIRE COMPANIES ACROSS MULTIPLE MARKET SEGMENTS. The Company intends to
acquire profitable businesses with well-developed market positions that are
engaged in the new installation and the maintenance, repair and replacement
segments of the HVAC, plumbing and electrical service industries in order
to develop synergies from the combined operations. For example, the Company
believes that new installation companies can be successfully teamed with
companies providing maintenance, repair and replacement services in the
same geographical markets, providing the latter with a new source of
service customers (purchasers of new homes) before these customers have a
chance to develop service relationships with other competitors. Likewise,
the combination of two or more companies providing complementary services
within a geographical market will enable the Company to offer to the
combined customer bases a wider range of services from a single supplier.

EXPAND GEOGRAPHIC PRESENCE. In new geographic markets, the Company will
target for acquisition one or more of the leading local or regional
companies in each market segment. Important criteria for these acquisition
candidates will be a reputation as a high quality provider and superior
operational management and systems. Once the Company has entered a market
it will seek to acquire other high quality service providers operating
within the region in order to expand its market penetration and the range
of services it offers in that market. The Company will also pursue "tuck
in" acquisitions of smaller companies whose customer bases, operating
assets and service personnel can be incorporated into the Company's
existing operations without a significant increase in selling, general and
administrative costs.

RETAIN AND PROVIDE INCENTIVES TO EXISTING MANAGEMENT. The Company will
seek acquisitions of successful companies whose senior managers will remain
as employees of the Company and continue to operate their respective
businesses on a local level. The Company intends to motivate these managers
and align their interests with those of the Company by utilizing Company
Common Stock as a significant portion of the purchase consideration, by
establishing a key manager stock option plan for their benefit and by

67
<PAGE>

implementing a cash bonus plan that rewards managers and key employees for
improvement in after-tax earnings that exceeds the cost of capital
employed.

LEVERAGE INDUSTRY REPUTATION AND CONTACTS. The Company intends to utilize
existing industry relationships established by its acquired companies and
Company management, as well as the industry-wide contacts of Callahan Roach
and USA, to develop a broad base of potential acquisitions. The Company
believes that its ability to acquire additional high quality companies will
be influenced by the level of success enjoyed by companies that have
previously joined with the Company, as well as the continuing efforts of
the Company and its operating subsidiaries to maintain a high profile in
the industry. The Company intends to remain actively involved in industry
organizations on the local and national level, working with independent
companies to support issues of interest to the Company and its operating
subsidiaries.

The Company began implementing the above strategies with the acquisition of
Airtron in May 1997 and has since acquired 8 other companies providing both
new installation and maintenance, repair and replacement services in the
residential and commercial HVAC, plumbing and electrical markets. The Pre-IPO
Companies have combined fiscal 1996 revenues of $138.8 million. After the
acquisition of the 13 IPO Acquisition Companies, the Company will have
operations in 37 cities in 21 states with combined 1996 revenues of $307.5
million. The Company will have two or more companies offering complementary
services in four geographical markets (Houston, Dallas, Austin and
Indianapolis). Within certain of its markets (Dallas, Houston, San Antonio and
Cincinnati), the Company has acquired or is acquiring at the IPO companies
with a primary focus on maintenance, repair and replacement services to
augment its new installation businesses in these areas.

BEST PRACTICES

The Company believes that one of the most significant competitive advantages
of a consolidation company is its ability to identify the best marketing,
sales and operating practices within individual acquired companies and to
spread those best practices across all of its operating locations. The key to
successful implementation is having a disciplined approach to identifying the
desired practices, developing the procedures and related training to ensure
these practices are understood and implemented properly in the field
locations, and measuring systematically the operating performance of the
companies against benchmarks or standards to ensure that the practices are
effective.

The Company believes it enjoys a distinct competitive advantage in this area
resulting from its purchase of Callahan Roach and USA in July 1997. These two
organizations provide the Company with professional level capabilities in the
areas of integration, training and management development for both the
residential and commercial segments of its business. The Company intends to
utilize the expertise of these two industry-recognized GroupMAC Companies in
developing, implementing and monitoring its best practices. Both of these
organizations have extensive industry-wide experience from which to draw best
practices, in addition to the ideas and procedures that come from existing
GroupMAC Companies and future acquisitions. The Company believes that this
expertise, and the exploitation of best practices in this manner, will enable
the Company to accelerate the integration of acquired companies.

Callahan Roach serves HVAC and plumbing contractors across the United States
in such areas as advertising, marketing, business valuation, pricing
strategies, management information services, acquisition planning and
integration and general consulting. It provides the Customer Assurance
Pricing(TM) models to over 1,300 HVAC and plumbing service companies. Callahan
Roach has been an industry leader in the development and commercialization of
this flat rate pricing best practice known as Customer Assurance Pricing(TM),
successfully marketing it to over 2,800 independent contractors across the
United States. Callahan Roach has developed and is currently field testing a
flat rate pricing software product (derived from its manual Customer Assurance
Pricing(TM) systems) that will run on hand-held computers for use by sales and
service personnel in the field. USA provides training and other products and
services to a network of 105 independent service companies focused on

68
<PAGE>

maintenance, repair and replacement of commercial HVAC systems. The Company
believes that its acquisition of USA adds significant commercial HVAC
expertise to complement the residential HVAC and plumbing expertise provided
by Callahan Roach.

In order to ensure that best practices are shared among each of the
individual GroupMAC Companies, the Company has created a Council of Presidents
composed of the president or senior executive of each of the GroupMAC
Companies. The Council will meet on a regular basis, as well as divide into
smaller working committees, to share operating practices and develop
additional means to improve the overall performance of the Company and the
individual GroupMAC Companies. Best practices that result from the work of the
Council will be included in the training and monitoring programs developed and
disseminated through Callahan Roach and USA.

SERVICES PROVIDED

The Company provides a broad variety of maintenance, repair and replacement
services for HVAC, plumbing, electrical and other systems to both residential
and commercial customers. These services include preventive maintenance
(periodic checkups, cleaning and filter change-outs); emergency repairs; and
the replacement (in conjunction with the retrofitting or remodeling of a
residence or commercial building, or as a result of an emergency repair
request) of HVAC systems and associated parts, plumbing fixtures, pipes, water
feed and sewer lines, water heaters, softeners, filters and controls, and
electrical control systems, wiring, data cabling, switches and panels. The
Company also acts as a subcontractor for a variety of national, regional and
local residential home builders in the installation of HVAC, plumbing,
electrical and other systems in new residential construction, as well as
designing and installing HVAC, plumbing, electrical and other systems on
behalf of owners or general contractors in commercial buildings. In a few of
its operating locations, the Company provides certain specialized services,
including repair of home appliances, duct cleaning, installation and repair of
fireplaces, installation of fire sprinkler systems and the provision of
technical facilities management services to commercial building owners or
building managers. In connection with both its new installation business and
its maintenance, repair and replacement services, the Company sells a wide
range of HVAC, plumbing and electrical equipment, parts and supplies.

The following table shows the approximate percentages of the revenues of the
combined GroupMAC Companies during fiscal 1996 represented by new installation
services and maintenance, repair and replacement services, respectively.

<TABLE>
<CAPTION>
ELECTRICAL
HVAC PLUMBING & OTHER TOTAL
---- -------- ---------- -----
<S> <C> <C> <C> <C>
Residential Services:
New Installation............................... 26% 16% --% 42%
Maintenance, Repair and Replacement............ 13% 2% 2% 17%
--- --- --- ---
Total Residential............................ 39% 18% 2% 59%
Commercial Services:
New Installation............................... 10% 2% --% 12%
Maintenance, Repair and Replacement............ 25% 3% 1% 29%
--- --- --- ---
Total Commercial............................. 35% 5% 1% 41%
</TABLE>

The Company intends to make additional acquisitions across the three main
technical disciplines (HVAC, plumbing and electrical) within the residential
and commercial markets. The Company's long term objective is to develop
maintenance, repair and replacement capabilities (both residential and
commercial) in the top 100 markets within the United States, while offering
new installation services across a more limited range of markets where new
construction in the residential and/or commercial sectors is expected to out-
pace the national average over the long term. Over time, this objective is
expected to shift the revenues of the Company to an increased percentage of
service revenue. See "--Operating Strategy" and "--Acquisition Strategy."

69
<PAGE>

FIELD OPERATIONS

The Company's field operations are conducted out of the individual operating
locations of the various GroupMAC Companies. Typically, the GroupMAC Companies
specialize in one of the technical disciplines in either the residential or
commercial market. However, a few of the GroupMAC Companies that operate
principally in the residential new installation or residential maintenance,
repair and replacement markets also engage to a limited extent in projects or
service work for "light commercial" customers (i.e., smaller commercial
buildings where systems are similar in design to residential systems). In
addition, six of the GroupMAC Companies offer services in more than one
technical discipline. The Company permits the GroupMAC Companies to function
in a largely autonomous manner in delivering products and services to their
respective markets. The Company believes this flexible operating strategy
improves each location's ability to respond quickly to opportunities and
competition.

New Installation

New installation service in the residential market begins with the home
builder providing architectural plans or mechanical drawings for the
particular type or types of residences within the tract to be developed, and
requesting a bid or contract proposal for the work (often broken into phases
within the tract). Company personnel analyze the plans and drawings and
estimate the equipment, materials and parts and the direct and supervisory
labor required for the project. The company delivers a written bid or
negotiates the written agreement for the job. In HVAC installations, a portion
of the required air ducts are fabricated and pre-assembled with other
components in the company's own facilities prior to delivery to the job site.
Other equipment and materials for the particular project are ordered from
manufacturers, distributors or other suppliers for delivery in time for the
scheduled onsite construction work. The installation work is coordinated by
the company's field supervisors along with the builder's construction
supervisors. Draw payments for the project are generally obtained within 30
days of completing the installation, at which time any mechanics' and
materialmen's liens securing such payments are released. Interim payments are
often obtained to cover labor and materials costs on larger installation
projects. During 1996, the GroupMAC Companies were involved in the
installation of approximately 18,000 HVAC systems and 6,500 plumbing systems
in new residences.

Commercial new installation work begins with a design request from the owner
or general contractor. Initial meetings with the parties allow the contractor
to prepare preliminary and then more detailed design specifications,
engineering drawings and cost estimates. Once a project is awarded, it is
conducted in pre-agreed phases and progress billings are rendered to the owner
for payment, less a retainage. Actual field work (ordering of equipment and
materials, fabrication or assembly of certain components, delivery of such
materials and components to the job site, scheduling of work crews with the
necessary skills, and inspection and quality control) is coordinated in these
same phases. During 1996, the GroupMAC Companies were involved in the
installation of approximately 480 HVAC systems and 95 plumbing systems in new
commercial facilities. The Company has established a policy to review and
approve any new installation project by a GroupMAC Company which exceeds 5% of
the projected annual revenue of that GroupMAC Company.

Substantially all the equipment and component parts the Company sells or
installs are purchased from manufacturers and other outside suppliers. The
Company is not materially dependent on any of these outside sources.

Maintenance, Repair and Replacement

The GroupMAC Companies engaged in maintenance, repair and replacement
services use specialized systems to log service orders, schedule service
calls, identify and ready the necessary repair parts or equipment, track the
work order, provide information for communication with the service technicians
and customers, and prepare accurate invoices. Service histories and specific
product information are generally accessible to the dispatcher in a database
that may be searched by customer name or address. Maintenance, repair and
replacement service calls are initiated when a customer requests emergency
repair service or the Company calls the client to

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schedule periodic service agreement maintenance. Service technicians are
scheduled for the call or routed to the customer's residence or business by
the dispatcher via a scheduling board or daily work sheet (for non-emergency
service) or through cellular telephone, pager or radio. Service personnel work
out of the Company's service vehicles, which carry an inventory of equipment,
tools, parts and supplies needed to complete the typical variety of jobs. The
technician assigned to a service call travels to the residence or business,
interviews the customer, diagnoses the problem, prepares and discusses a price
quotation, performs the work and often collects payment from the customer.
Service technicians of GroupMAC Companies that are existing clients of
Callahan Roach carry a Customer Assurance Pricing(TM) manual which lists labor
and equipment parts required to fulfill certain tasks and the associated
prices. This manual is custom generated for each company from a database
containing over 15,000 different repair operations and which is updated for
price changes periodically. This "flat rate pricing" strategy allows the
Company to monitor margins and labor productivity at the point of sale, while
increasing the level of customer satisfaction by demonstrating greater
fairness and objectivity in pricing. Payment for maintenance, repair and
replacement services not covered by a warranty or service contract is
generally requested in cash or by check or credit card at the service
location. During fiscal 1996, the GroupMAC Companies performed approximately
150,000 service calls for periodic maintenance under existing service
contracts, and approximately 175,000 emergency or other service calls.

A portion of the Company's service work is done to satisfy factory
warranties. For such services, the Company is generally compensated by the
manufacturer responsible for the defective equipment under warranty. The
Company attempts to enter into service contracts whereby the customer pays an
annual or semi-annual fee for periodic diagnostic services. The customers
under service contracts receive specific discounts from standard prices for
repair and replacement service.

CENTRALIZED SUPPORT SERVICES

The Company provides certain management, financial, accounting and
logistical support services for all of the GroupMAC Companies, including the
following:

Purchasing

The Company believes it will be able to structure volume purchasing
arrangements or otherwise achieve purchasing economies of scale in the
following areas: (i) HVAC, plumbing and electrical equipment, parts and
supplies, (ii) purchase or lease and maintenance of service vehicles, (iii)
casualty and liability insurance, (iv) health insurance and related benefits,
(v) retirement benefits administration, (vi) office equipment, (vii) marketing
and advertising (including Yellow Pages), (viii) long distance services and
(ix) a variety of accounting, financial management, marketing and legal
services. The principal manufacturers or suppliers of the products sold by the
Company include Carrier Air Conditioning, Inc., The Trane Company, Lennox
Industries, Inc., Goodman Manufacturing Corp. and Ferguson Enterprises, Inc.
Each GroupMAC Company will have the opportunity to order products from the
manufacturers or distributors at the discounted rate negotiated by the Company
and therefore, benefit from the Company's purchasing power while maintaining
existing supplier relationships.

Management Information Systems

With limited exceptions, the Company intends to continue to operate for the
near-term with the existing accounting and other computer systems currently in
place at the various GroupMAC Companies. The Company will, however, cause each
of the GroupMAC Companies to adopt a uniform chart of accounts and to
standardize their budgeting process and reports so that results among the
GroupMAC Companies more easily can be compared and integrated. In addition,
where a GroupMAC Company or a future acquired company has a system in place
that is inadequate for its existing or near term needs, the Company will begin
the migration to a standard that will allow for greater consistency (and a
longer term change to a Company-wide, integrated system). The Company has
implemented regular financial and operational "flash reports" and other
mechanisms to allow for management control and oversight. The Company will
utilize this information to establish and monitor performance of individual
GroupMAC Companies against operating benchmarks and ratios.

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Employee Screening, Training and Development

The Company is committed to providing the highest level of customer service
through the development of a highly trained workforce. Prior to employment,
the Company makes an assessment of the technical competence level of all
potential new employees, confirms background references and conducts criminal
and driving record checks. In addition, all employees of the Company are
subject to random drug testing. Once hired, employees of the Company are
required to complete a progressive training program to advance their technical
competencies and to ensure that they understand and follow the Company's
safety practices and other internal policies. Both technical and customer
service personnel are given intensive training in customer communication,
sales and problem-solving skills.

The Company also conducts a detailed internal evaluation of each acquired
company's strengths, weaknesses and compliance with recognized industry or
Company "best practices," and then designs a training program to develop and
enhance the communication, sales, management and other relevant skills of its
employees and management to bring about continuous improvement in these areas.
The Company acquired Callahan Roach and USA in part for their professional
training and consulting capabilities and intends to implement their market-
leading training programs within the GroupMAC Companies.

Advertising and Marketing

The Company intends to capitalize on cross-marketing and business
development opportunities that it believes will be available to the Company as
a national provider of comprehensive residential and commercial HVAC, plumbing
and electrical services. The Company will leverage the diverse technical and
marketing strengths of individual GroupMAC Companies to expand the overall
penetration of services within those local markets in which two or more
GroupMAC Companies are located. Eventually, the Company intends to offer
comprehensive services from all of its operating locations.

The GroupMAC Companies use both general advertising and a direct sales force
to market their residential and commercial services (both new installation and
repair services) in their respective geographic markets. The Company is
developing a marketing and advertising program to establish a national brand
identity while preserving and enhancing the value of the unique and long-
standing trade names and customer identification enjoyed by the individual
GroupMAC Companies. The GroupMAC logo and identifying marks will be featured
on service trucks, marketing materials and advertising of the GroupMAC
Companies, but in a manner that does not detract from the local brand. The
Company proposes to develop (initially for the GroupMAC Companies, but
ultimately for delivery to the market through licensed affiliates developed by
Callahan Roach and USA) market-leading warranty and service programs for the
residential and commercial markets, as well as an aggressive national account
sales program focused on national and large regional home builders, as well as
major corporations, governmental and private institutions, real estate
investment trusts, real estate management firms and other multi-location
commercial property owners and managers. In 1996, advertising and marketing
expenditures represented 0.9% of the Company's combined revenue.

PROPERTIES AND VEHICLES

The Company operates a fleet of approximately 1,580 owned or leased service
trucks, vans and support vehicles. It believes these vehicles generally are
well-maintained, ordinary wear and tear excepted, and adequate for the
Company's current operations.

The Company has a total of 54 facilities, one of which it owns and 53 of
which are under leases with remaining terms ranging from four months to 15
years from the date hereof on terms the Company believes to be commercially
reasonable. The aggregate of the leased or owned space at the Company's
facilities is approximately 600,000 square feet. A majority of the Company's
facilities are leased from certain former shareholders (or entities controlled
by certain former shareholders) of the GroupMAC Companies. None of these

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leases expire prior to 2000. The provisions of the leases are on terms the
Company believes to be at least as favorable to the Company as could have been
negotiated by the Company with unaffiliated third parties. The Company
believes the owned and leased facilities are adequate to serve its current
level of operations.

The Company believes that it has generally satisfactory title to the
property owned by it, subject to the liens for current taxes, liens incident
to minor encumbrances and easements and restrictions that do not materially
detract from the value of such property or the interests therein or the use of
such property in its business.

COMPETITION

The market for HVAC, plumbing and electrical services is highly competitive.
The Company believes that the principal competitive factors in the residential
and commercial services industry are (i) timeliness, reliability and quality
of services provided, (ii) range of services offered, (iii) market share and
visibility and (iv) price. The Company believes its strategy of creating a
leading national provider of comprehensive services directly addresses these
factors. The ability of the Company to employ, train and retain highly
motivated service technicians to provide quality services should be enhanced
by its ability to utilize professionally managed recruiting and training
programs. In addition, the Company expects to offer compensation, health and
savings benefits that are more comprehensive than most offered in the
industry, including a stock option plan for all employees. Service quality
should be enhanced by the implementation and continuous reinforcement of best
practices across the GroupMAC Companies. Competitive pricing is possible
through purchasing economies and other cost saving opportunities that exist
across each of the service lines offered and from productivity improvements.

Most of the Company's competitors are small, owner-operated companies that
typically operate in a single market. Certain of these smaller competitors may
have lower overhead cost structures and may be able to provide their services
at lower rates. Moreover, many homeowners have traditionally relied on
individual persons or small repair service firms with whom they have long-
established relationships for a variety of home repairs. There is currently a
limited number of public companies focused on providing residential or
commercial services in some of the same service lines provided by the Company.

In addition, there are a number of national retail chains that sell a
variety of plumbing fixtures and equipment, and HVAC equipment for residential
use and offer, either directly or through various subcontractors,
installation, warranty and repair services. Other companies or trade groups
engage in franchising their names and marketing programs in some service
lines. In the future, competition may be encountered from, among others, HVAC
equipment manufacturers, the unregulated business segments of regulated gas
and electric utilities or from newly deregulated utilities entering into
various residential service areas. Certain of the Company's competitors and
potential competitors have greater financial resources than the Company to
finance residential services acquisition and development opportunities, to pay
higher prices for the same opportunities or to develop and support their own
residential services operations if they decide to enter the field.

EMPLOYEES

As of August 1, 1997, the Company and the GroupMAC Companies had
approximately 2,860 full and part-time employees, approximately 1,825 of which
are installation/service technicians. In the course of performing installation
work, the Company may utilize the services of subcontractors. Approximately
500 employees (in five of the commercial GroupMAC Companies) are members of
the Bridge, Structural and Ornamental Iron Workers, Construction Building
Material, Ice and Coal Drivers, Helpers and Inside Employees, Mechanical
Contractors, Mechanical Services, Pipe-fitters, Plumbing and Pipe-fitters and
Sheet Metal Workers, Air Conditioning Contractors, Stationary Engineers and
Electrical Contractors unions, and work under collective bargaining
agreements. Two of such agreements recently expired and are now on a year-to-
year basis and may be renegotiated after either side gives the requisite
notice (90 days in one case and 120 days in the other). The other collective
bargaining agreements have expiration dates between April 30, 1998 and August
16, 2000. Employees at K&N's operations in Las Vegas, Nevada, are currently
being solicited to join a union, from time to time, other operating locations
of the Company may experience union organizing efforts. The Company believes
its relationship with its employees is satisfactory.

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<PAGE>

LEGAL PROCEEDINGS

The Company and its subsidiaries are parties to various legal proceedings,
most of which pertain to contract installation, service and employee matters
arising in the ordinary course of business. Although no assurance can be
given, the Company believes that the outcome of these proceedings,
individually and in the aggregate, will not have a material adverse effect on
its financial condition or results of operations.

GOVERNMENTAL REGULATION AND ENVIRONMENTAL MATTERS

Many aspects of the Company's operations are subject to various federal,
state and local laws and regulations, including, among others, (i) permitting
and licensing requirements applicable to service technicians in their
respective trades, (ii) building, HVAC, plumbing and electrical codes and
zoning ordinances, (iii) laws and regulations relating to consumer protection,
including laws and regulations governing service contracts for residential
services, and (iv) laws and regulations relating to worker safety and
protection of human health and the environment. In Florida, warranties
provided for in the Company's service agreements subject the Company and such
agreements to that state's insurance laws and regulations. Specifically, the
Company is required to maintain funds on deposit with the Florida Office of
Insurance Commissioner and Treasurer, the amount of which is not material to
the Company's business. The Company is in compliance with these deposit
requirements.

The Company believes it has all required permits and licenses to conduct its
operations and is in substantial compliance with applicable regulatory
requirements relating to its operations. Failure of the Company to comply with
the applicable regulations could result in substantial fines or revocation of
the Company's operating permits.

A large number of state and local regulations governing the residential
services trades require various permits and licenses to be held by
individuals. In some cases, a required permit or license held by a single
individual may be sufficient to authorize specified activities for all the
Company's service technicians who work in the geographic area covered by the
permit or licenses.

The Company's operations are subject to numerous federal, state and local
environmental laws and regulations, including those governing vehicle
emissions and the use and handling of refrigerants. These laws are
administered by the United States Environmental Protection Agency, the Coast
Guard, the Department of Transportation and various state and local
governmental agencies. The technical requirements of these laws and
regulations are becoming increasingly complex, stringent and expensive.
Federal and state environmental laws include statutes intended to allocate the
cost of remedying contamination among specifically identified parties. CERCLA
(or "Superfund") can impose strict, joint and several liability on past and
present owners or operators of facilities at, from, or to which a release of
hazardous substances has occurred, on parties who generated hazardous
substances that were released at such facilities and on parties who arranged
for the transportation of hazardous substances to such facilities. A majority
of states have adopted "Superfund" statutes comparable to, and in some cases
more stringent than, CERCLA. If the Company were to be found to be a
responsible party under CERCLA or a similar state statute, the Company could
be held liable for all investigative and remedial costs associated with
addressing such contamination, even though the releases were caused by a prior
owner or operator or third party. In addition, claims alleging personal injury
or property damage may be brought against the Company as a result of alleged
exposure to hazardous substances resulting from the Company's operations.

Prior to entering into the agreements relating to the acquisition of the
GroupMAC Companies, the Company evaluated the properties owned or leased by
such companies and in some cases engaged an independent environmental
consulting firm to conduct or review assessments of environmental conditions
at certain of those properties. No material environmental problems were
discovered in these reviews, and the Company is not otherwise aware of any
actual or potential environmental liabilities that would be material to the
Company. There can be no assurance that all such liabilities have been
identified, that such liabilities will not occur in the future, that a party
could not assert a material claim against the Company with respect to such
liabilities, or that the Company would be required or able to answer for such
claim.

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The Company's operations are subject to federal, state and local laws and
regulations protecting the health and safety of workers. These laws are
administered by the federal Occupational Safety & Health Administration and
state and local health and safety governmental agencies. The Company's
operations are subject to the Clean Air Act, Title VI of which governs air
emissions and imposes specific requirements on the use and handling of
substances known or suspected to cause or contribute significantly to harmful
effects on the stratospherical ozone layer, such as chlorofluorocarbons and
certain other refrigerants ("CFCs"). Clean Air Act regulations require the
certification of service technicians involved in the service or repair of
systems, equipment and appliances containing these refrigerants and also
regulate the containment and recycling of these refrigerants. These
requirements have increased the Company's training expenses and expenditures
for containment and recycling equipment. The Clean Air Act is intended
ultimately to eliminate the use of CFCs in the United States and require
alternative refrigerants to be used in replacement HVAC systems. The
implementation of the Clean Air Act restrictions has also increased the cost
of CFCs in recent years and is expected to continue to increase such costs in
the future. As a result, the number of conversions of existing HVAC systems
that use CFCs to systems using alternative refrigerants is expected to
increase.

The Company's operations in certain geographic regions are subject to laws
that will, over the next few years, require specified percentages of vehicles
in large vehicle fleets to use "alternative fuels," such as compressed natural
gas or propane, and meet reduced emissions standards. The Company does not
anticipate that the cost of fleet conversion that may be required under
current laws will be material. Future costs of compliance with these laws will
be dependent upon the number of vehicles purchased in the future for use in
the covered geographic regions, as well as the number and size of future
business acquisitions by the Company in these regions. The Company cannot
determine to what extent its future operations and earnings may be affected by
new regulations or changes in existing regulations relating to vehicle
emissions.

Capital expenditures related to environmental matters during fiscal 1996
were not material. The Company does not currently anticipate any material
adverse effect on its business or consolidated financial position as a result
of future compliance with existing environmental laws and regulations
controlling the discharge of materials into the environment. Future events,
however, such as changes in existing laws and regulations or their
interpretation, more vigorous enforcement policies of regulatory agencies or
stricter or different interpretations of existing laws and regulations may
require additional expenditures by the Company which may be material.

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DIRECTORS AND EXECUTIVE OFFICERS

The following table sets forth certain information concerning the directors
and executive officers of the Company upon completion of the IPO.

<TABLE>
<CAPTION>
NAME AGE POSITION
---- --- --------
<S> <C> <C>
James P. Norris............. 58 Chairman of the Board; Director
J. Patrick Millinor, Jr..... 52 Chief Executive Officer; Director
Donald L. Luke.............. 60 President and Chief Operating Officer; Director
William Michael Callahan.... 51 Executive Vice President-Training, Technology
and Field Support
Chester J. Jachimiec........ 42 Executive Vice President-Acquisitions; Director
Alfred R. Roach, Jr......... 53 Executive Vice President-Marketing, Sales and
Product Support
Richard S. Rouse............ 51 Executive Vice President-Corporate Development
and Administration; Director
Randolph W. Bryant.......... 46 Senior Vice President, General Counsel and
Secretary
Darren B. Miller............ 37 Senior Vice President and Chief Financial
Officer
James D. Jennings........... 55 President and Chief Executive Officer of
Airtron; Director
Timothy Johnston............ 41 Senior Vice President of Airtron; Director
John M. Sullivan............ 61 Director
James D. Weaver............. 48 Director
Ronald D. Bryant............ 50 Director
David L. Henninger.......... 53 Director
Andrew Jeffrey Kelly........ 43 Director
Thomas B. McDade............ 74 Director
Lucian Morrison............. 60 Director
Fredric Sigmund............. 56 Director
</TABLE>

JAMES P. NORRIS became a Director and Chairman of the Board of the Company
in June 1997. From 1969 to May 1997, he served as Executive Vice President of
Air Conditioning Contractors of America ("ACCA"), an industry trade
association based in Washington, D.C.

J. PATRICK MILLINOR, JR. became a Director and Chief Executive Officer of
the Company upon its formation in 1997. From April 1997 to August 1997, he
served as President of the Company. From October 1996 through April 1997, he
served as Chief Executive Officer of the Company's predecessor, GroupMAC
Management Co. ("Management Co."). From September 1994 to October 1996, Mr.
Millinor worked directly for Gordon Cain, a major stockholder in the Company,
assisting in the formation and management of Agennix Incorporated and Lexicon
Genetics, two biotechnology companies. From March 1993 to September 1994, he
served as Chief Executive Officer of UltrAir, Inc., a start-up passenger
airline. From October 1992 to March 1993, he served as Chief Financial Officer
of UltrAir, Inc. From 1991 to 1992, he served as Chief Financial Officer of
Lifeco Travel Services, a travel management company. From 1986 to 1991, Mr.
Millinor served as Chief Operating Officer and Senior Vice President,
respectively, of Commonwealth Savings Association and Bank United. From 1979
to 1986, Mr. Millinor was a partner with KPMG Peat Marwick LLP. He currently
serves as a director of Agennix Incorporated, Haelan Health(R) Corporation and
Lexicon Genetics.

DONALD L. LUKE became a Director and President and Chief Operating Officer
of the Company in August 1997. From November 1996 to July 1997, he served as
Chairman of Arriva Air International, Inc. a start-up commercial air cargo
business. From September 1996 to August 1997, he served as a consultant to
Batteries Batteries, Inc., a consolidator of specialty battery distribution
companies which completed its initial public offering in April 1996. From 1995
to September 1996, he served as President, Chief Executive Officer and
Director of Batteries Batteries, Inc. From 1991 to 1995, Mr. Luke served as
President and Chief Executive Officer of Miracle Ear New York City. From 1989
to 1991, he served as President and Chief Executive Officer

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of Senior Service Corporation. From 1988 to 1989, he served as Chairman and
Chief Executive Officer of Cuisinarts, Inc. From 1987 to 1988, he served as
President and Chief Operating Officer of Aetmedia, Inc. From 1981 to 1987, he
served as President and Chief Operating Officer and a director of Chemlawn
Services Corporation. He is currently the Chief Executive Officer of CTW, Inc.
a privately held acquisitions and management company, and a partner in
McFarland Grossman Capital Ventures, L.C., a consolidator of fastener
distribution companies.

WILLIAM MICHAEL CALLAHAN became Executive Vice President-Training,
Technology and Field Support of the Company in August 1997. From 1989 to July
1997, Mr. Callahan was a partner in Callahan Roach & Associates. From 1972 to
1989, Mr. Callahan served as President of Capital City Heating & Cooling, a
company he founded. In 1988, Mr. Callahan served as President of ACCA.

CHESTER J. JACHIMIEC became a Director and Executive Vice President-
Acquisitions of the Company upon its formation in 1997. From October 1996 to
April 1997, he served as Executive Vice President-Acquisitions at the
Company's predecessor, Management Co. From February 1994 to October 1996, Mr.
Jachimiec served as the Director of Acquisitions & Investments for Tenneco
Energy. From 1990 to 1994, he was an investor in or consultant to various
private ventures engaged in natural gas gathering, processing and exploration
as well as computer software development. Prior to 1990, Mr. Jachimiec
practiced securities law and public accounting with several professional
firms.

ALFRED R. ROACH, JR. became Executive Vice President-Marketing, Sales and
Product Support of the Company in August 1997. From 1989 to July 1997, Mr.
Roach was a partner in Callahan Roach & Associates. From 1986 to 1989, he
served as President and General Counsel of Service America Corporation, an
HVAC franchise company. From 1970 to 1986, Mr. Roach engaged in the private
practice of law.

RICHARD S. ROUSE became a Director and Executive Vice President-Corporate
Development and Administration of the Company upon its formation in 1997. From
October 1996 to April 1997, he served as Executive Vice President-Corporate
Development and Administration of the Company's predecessor, Management Co.
From July 1994 to July 1996, Mr. Rouse served as Vice President and General
Manager of Southcoast Services, a privately held landfill operating company.
From 1992 to 1994, he served as Vice President and General Manager of SWS, an
industrial services company. From 1990 to 1991, he was a co-founder and Senior
Vice President-Corporate Development for Republic Waste Industries, Inc. From
1984 to 1990, he was Marketing Manager of Lubripac, a blender and packager of
lubricants and specialty chemicals. Prior to 1984, Mr. Rouse served in various
marketing and management capacities with the Exxon Chemical Company.

RANDOLPH W. BRYANT became Senior Vice President, General Counsel and
Secretary of the Company upon its formation in 1997. From December 1996 to
April 1997, Mr. Bryant served as Associate General Counsel of El Paso Natural
Gas Company. From 1984 to 1996, he was an attorney with Tenneco Inc. and
Tenneco Energy Inc., last serving as Associate General Counsel.

DARREN B. MILLER became Senior Vice President and Chief Financial Officer of
the Company upon its formation in 1997. From October 1996 to April 1997, he
served as Senior Vice President and Chief Financial Officer of the Company's
predecessor, Management Co. From 1989 to 1996, Mr. Miller served in several
capacities at Allwaste, Inc., a consolidator of industrial service companies,
including Vice President-Treasurer and Controller from 1995 to 1996. Prior to
1989, he was employed in the audit practice of Arthur Andersen LLP.

JAMES D. JENNINGS became a Director of the Company in May 1997 in connection
with the acquisition of Airtron. Since 1985, Mr. Jennings has served as
President, Chief Executive Officer and a director of Airtron. Prior to 1985,
Mr. Jennings was employed by Airtron in various other capacities.

TIMOTHY JOHNSTON became a Director of the Company in May 1997 in connection
with the acquisition of Airtron. Since 1995, Mr. Johnston has served as a
Senior Vice President of Airtron. Mr. Johnston has served as

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Secretary/Treasurer of Airtron since 1991 and as Chief Financial Officer of
Airtron since 1988. Prior to 1987, Mr. Johnston was employed by Airtron in
various other capacities.

JOHN M. SULLIVAN became a Director of the Company upon its formation in
1997. From October 1996 to April 1997, he served as a Director of the
Company's predecessor, Management Co. Since 1994, Mr. Sullivan has been
engaged as an independent financial and tax consultant. From 1992 through
1994, he was an International Tax Director for General Motors Corporation.
Prior to 1992, Mr. Sullivan was a tax partner with Arthur Andersen LLP. He
currently serves as a director of Atlantic Coast Airlines, Inc.

JAMES D. WEAVER became a Director of the Company upon its formation in 1997.
From October 1996 to April 1997, he served as a Director at the Company's
predecessor, Management Co. Mr. Weaver has been the President of the Gordon
and Mary Cain Foundation, a nonprofit organization, since 1988 and the
Director of the Good Samaritan Foundation, a nonprofit organization, since
1986.

RONALD D. BRYANT will become a Director upon consummation of the IPO. He
founded Masters in 1986 and has served as its president since that time and
will continue in that capacity after consummation of the IPO.

DAVID L. HENNINGER will become a Director upon consummation of the IPO. He
acquired Van's in 1975, has served as its president since that time and will
continue in that capacity after consummation of the IPO.

ANDREW JEFFREY KELLY will become a Director upon consummation of the IPO. He
founded K&N in 1979, has served as its president since that time and will
continue in that capacity after consummation of the IPO.

THOMAS B. MCDADE will become a Director upon consummation of the IPO. He has
been engaged in consulting and managing his personal investments since 1985.
From 1957 to 1985, he was employed by Texas Commerce Bancshares, last serving
in the capacity of Vice Chairman. He has been Chairman of the Board of
TransTexas Gas Corp. since 1993. He served as a director and trustee of eleven
registered investment companies from 1985 to 1995 for which John Hancock Funds
serves as investment advisor in Boston, Massachusetts. He currently serves as
a director of Bankers Trust Co. of the Southwest, TransAmerican Energy Corp.
and TransAmerican Refining Corp.

LUCIAN MORRISON will become a Director upon consummation of the IPO. He has
been engaged as a trustee and consultant with respect to trust, estate,
probate and qualified plan matters since 1992. From 1979 until 1990, he served
as Chief Executive Officer of Heritage Trust Company. From 1990 through 1991,
he served as Chief Fiduciary Officer of Northern Trust Company.

FREDRIC SIGMUND will become a Director upon consummation of the IPO. Since
1986, he has served as Chief Executive Officer of MMI. Prior to that time, he
served as the President and Chief Executive Officer of MacDonald-Miller
Company, Inc. from 1974 to 1986 and in various other capacities with
MacDonald-Miller Company, Inc. from 1967 to 1974.

Effective upon the consummation of the IPO, the Board of Directors of the
Company will consist of 15 members divided into three classes of five
directors serving staggered three-year terms expiring at the annual meeting of
shareholders in 1998, 1999 and 2000, respectively. At each annual meeting of
shareholders, one class of directors will be elected for a full term of three
years to succeed the class of directors whose terms are expiring.

COMMITTEES OF THE BOARD OF DIRECTORS

The Board of Directors has established three committees--the Audit
Committee, the Compensation Committee and the Acquisition Committee. Pursuant
to resolutions of the Board, these committees have the following described
responsibilities and authority.

The Audit Committee has the responsibility, among other things, of (i)
recommending the selection of the Company's independent public accountants,
(ii) reviewing and approving the scope of the independent public accountants'
audit activity and extent of non-audit services, (iii) reviewing with
management and such

78
<PAGE>

independent public accountants the adequacy of the Company's basic accounting
system and the effectiveness of the Company's internal audit plan and
activities, (iv) reviewing with management and the independent public
accountants the Company's financial statements and exercising general
oversight of the Company's financial reporting process and (v) reviewing with
the Company litigation and other legal matters that may affect the Company's
financial condition, and monitoring compliance with the Company's business
ethics and other policies. As of the date of this Proxy Statement/Prospectus,
no members have been appointed to the Audit Committee.

The Compensation Committee has the responsibility, among other things, of
(i) establishing the salary rates of officers and employees of the Company and
its subsidiaries, (ii) examining periodically the compensation structure of
the Company and (iii) supervising the welfare and pension plans and
compensation plans of the Company. The members of the Compensation Committee
are Messrs. Sullivan (Chair) and Weaver.

The Acquisition Committee has the authority to approve the terms and
conditions of acquisitions by the Company of businesses having less than $40
million of revenues and $20 million of assets, including the authority to
approve the issuance of debt and equity securities of the Company in
connection with such acquisitions, provided that the consideration paid by the
Company for each such business is less than $20 million. The members of the
Acquisition Committee are Messrs. Millinor (Chair), Jachimiec and Rouse.

The Company's Board may also establish other committees.

DIRECTOR COMPENSATION

In October 1996, the Company granted to each of Messrs. Sullivan and Weaver
options to purchase 10,000 shares of Company Common Stock at a price of $3.08
per share. Between the grant of such options and the date of this Proxy
Statement/Prospectus, directors of the Company have not received compensation
for their services as directors nor have they received compensation for
attending the Company's board meetings. After the IPO, the Company intends to
grant to directors of the Company who are not employees of the Company or its
subsidiaries an option to purchase 4,000 shares of Company Common Stock at a
purchase price per share equal to the fair market value of one share of
Company Common Stock on the date of grant. Such options will remain in effect
for five years after the date of grant and 800 shares of each such grant will
become exercisable each year. If a director ceases to serve in such capacity
because of his death, disability or retirement, the options granted to that
director will become exercisable for a one-year period. Each director also
will be reimbursed for travel expenses incurred for each meeting of the Board
or for each Board Committee meeting attended.

EXECUTIVE COMPENSATION

The Company did not conduct any operations other than activities related to
the acquisition of the GroupMAC Companies prior to May 2, 1997 and did not pay
any compensation prior to October 1996. The Company anticipates that during
1997 its most highly compensated executive officers (the "Named Executive
Officers") and their annualized base salaries will be: Mr. Norris--$150,000;
Mr. Millinor--$150,000; Mr. Luke--$150,000; Mr. Jennings--$150,000; Mr.
Johnston--$150,000; Mr. Callahan--$150,000; and Mr. Roach--$150,000. Pursuant
to the terms of their employment agreements with the Company, the annual base
salaries of each of the Named Executive Officers named above are subject to
upward adjustment effective one year from the effective date of the employment
agreement. The effective dates of the employment agreements of the Named
Executive Officers are as follows: Mr. Millinor, October 24, 1996; Messrs.
Jennings and Johnston, April 30, 1997; Mr. Norris, June 1, 1997; and Messrs.
Luke, Callahan and Roach, August 1, 1997. Each of the Named Executive Officers
is eligible to earn additional performance based incentive compensation for
1997. None of the executive officers is expected to receive perquisites the
value of which exceeded the lesser of $50,000 or 10% of the salary and bonus
of such executive.

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<PAGE>

OPTION GRANTS

The following table sets forth the number of options to purchase shares of
Company Common Stock that have been granted to the Named Executive Officers
since the formation of the Company:
<TABLE>
<CAPTION>

POTENTIAL
REALIZABLE VALUE
AT ASSUMED
INDIVIDUAL GRANTS ANNUAL RATES OF
--------------------- STOCK PRICE
OPTIONS % OF TOTAL EXERCISE APPRECIATION FOR
GRANTED OPTIONS PRICE OPTION TERM(3)
(NO. OF GRANTED TO PER ----------------
SHARES)(1) EMPLOYEES(2) SHARE EXPIRATION DATE 5% 10%
---------- ------------ -------- ---------------- ------- --------
<S> <C> <C> <C> <C> <C> <C>
James P. Norris......... 28,000 7.4% $3.08 June 1, 2007 $54,236 $137,444
J. Patrick Millinor,
Jr..................... 50,000 13.2 3.08 October 24, 2006 96,850 245,436
Donald L. Luke.......... 14,000 3.7 3.08 August 1, 2007 27,118 68,722
James D. Jennings....... -- -- -- -- -- --
Timothy Johnston........ -- -- -- -- -- --
W. Michael Callahan..... -- -- -- -- -- --
Alfred R. Roach, Jr..... -- -- -- -- -- --
</TABLE>
- --------
(1) The options reported in this column consist of Non-Qualified Options
granted under Stock Option Agreements between the Company and each of the
Named Executive Officers. The options will become exercisable on each of
the first, second and third anniversaries of the date of grant with
respect to one-third of the shares subject to the option. In the case of
Mr. Millinor's options, the three annual vesting periods are accelerated
in the event the closing price of the Company Common Stock over ten
consecutive trading days exceeds $17.50, $22.50 and $27.50 per share,
respectively.
(2) Based on outstanding options to purchase an aggregate of 378,800 shares of
Company Common Stock.
(3) The dollar amounts under these columns are the result of calculations at
the 5% and 10% appreciation rates set by the Securities and Exchange
Commission (the "Commission") and, therefore, are not intended to forecast
possible future appreciation, if any, in the price of the Company Common
Stock. In order to realize the potential values set forth in the 5% and
10% columns of this table, the per share price of the Company Common Stock
would be $5.02 and $7.99, respectively, or 63% and 159% respectively,
above the base exercise price. Because the Company Common Stock is not
publicly traded prior to the IPO, these amounts were calculated based on
the assumption that the fair market value of one share of Company Common
Stock on the date of grant was equal to the exercise price.

The following table sets forth the number of options to purchase shares of
Company Common Stock held, as of August 1, 1997, by the Named Executive
Officers.

<TABLE>
<CAPTION>
NUMBER OF SECURITIES
UNDERLYING UNEXERCISED VALUE OF UNEXERCISED
OPTIONS AT IN-THE-MONEY OPTIONS AT
AUGUST 1, 1997 AUGUST 1, 1997(1)
----------------------- -----------------------
NOT NOT
NAME EXERCISABLE EXERCISABLE EXERCISABLE EXERCISABLE
---- ----------- ----------- ----------- -----------
<S> <C> <C> <C> <C>
James P. Norris................. -- 28,000 -- $305,760
J. Patrick Millinor, Jr......... -- 50,000 -- 546,000
Donald L. Luke.................. -- 14,000 -- 152,880
James D. Jennings............... -- -- -- --
Timothy Johnston................ -- -- -- --
W. Michael Callahan............. -- -- -- --
Alfred R. Roach, Jr............. -- -- -- --
</TABLE>
- --------
(1) Based on an estimated IPO Price of $14.00 per share.

EMPLOYMENT AGREEMENTS

In 1997, Mr. Norris entered into an employment agreement with the Company
which provides for an annual base salary of $150,000 and an annual cash bonus
depending on the actual annual performance of the Company.

80
<PAGE>

The agreement expires on June 1, 2000. In the event of Mr. Norris' death, the
agreement will terminate. In the event of Mr. Norris' disability, the Company
will continue payment of compensation during the first 12 month period of such
disability to the extent not covered by the Company's disability insurance
policies. In the event his employment is terminated, Mr. Norris will receive
compensation for the periods described in the agreement. In addition, Mr.
Norris has agreed not to compete with the Company during the six-month period
following his termination of employment.

In 1996, Mr. Millinor entered into an employment agreement with the Company
which provides for an annual base salary of $150,000 and an annual cash bonus
of up to 100% of Mr. Millinor's annual base salary depending on the actual
annual performance of the Company. The agreement expires on October 24, 1999.
In the event of Mr. Millinor's death, the agreement will terminate. In the
event of Mr. Millinor's disability, the Company will continue payment of
compensation during the first 12 month period of such disability to the extent
not covered by the Company's disability insurance policies. In the event his
employment is terminated, Mr. Millinor will receive compensation for the
periods described in the agreement. In addition, Mr. Millinor has agreed not
to compete with the Company during the six-month period following his
termination of employment.

In 1997, Mr. Luke entered into an employment agreement with the Company
which provides for an annual base salary of $150,000 and an annual cash bonus
depending on the actual annual performance of the Company. The agreement
expires on August 1, 2000. In the event of Mr. Luke's death, the agreement
will terminate. In the event of Mr. Luke's disability, the Company will
continue payment of compensation during the first 12 month period of such
disability to the extent not covered by the Company's disability insurance
policies. In the event his employment is terminated, Mr. Luke will receive
compensation for the periods described in the agreement. In addition, Mr. Luke
has agreed not to compete with the Company during the six-month period
following his termination of employment.

In 1997, Mr. Jennings entered into an employment agreement with Airtron
which provides for an annual base salary of $150,000. Mr. Jennings also
participates in the Airtron incentive bonus plan (which provides him an award
equal to 3.55% of Airtron's EBITDA before corporate bonus, not to exceed
$366,000 annually). The agreement expires on April 30, 2000. In the event of
Mr. Jennings' death, the agreement will terminate. In the event of Mr.
Jennings' disability, Airtron will continue payment of compensation during the
first six month period of such disability to the extent not covered by
Airtron's disability insurance policies. In the event his employment is
terminated, Mr. Jennings will receive compensation for the periods described
in the agreement. In addition, Mr. Jennings has agreed not to compete with
Airtron until the later to occur of (i) April 30, 2002 or (ii) one year
following his termination of employment.

In 1997, Mr. Johnston entered into an employment agreement with Airtron
which provides for an annual base salary of $150,000. Mr. Johnston also
participates in the Airtron incentive bonus plans (which provides him an award
equal to 1.50% of Airtron's EBITDA before corporate bonus, not to exceed
$154,000 annually). The agreement expires on April 30, 2000. In the event of
Mr. Johnston's death, the agreement will terminate. In the event of Mr.
Johnston's disability, Airtron will continue payment of compensation during
the first six month period of such disability to the extent not covered by
Airtron's disability insurance policies. In the event his employment is
terminated, Mr. Johnston will receive compensation for the periods described
in the agreement. In addition, Mr. Johnston has agreed not to compete with
Airtron until the later to occur of (i) April 30, 2002 or (ii) one year
following his termination of employment.

In 1997, Mr. Callahan entered into an employment agreement with the Company
which provides for an annual base salary of $150,000 and an annual cash bonus
depending on the actual annual performance of the Company. The agreement
expires on August 1, 2000. In the event of Mr. Callahan's death, the agreement
will terminate. In the event of Mr. Callahan's disability, the Company will
continue payment of compensation during the first 12 month period of such
disability to the extent not covered by the Company's disability insurance
policies. In the event his employment is terminated, Mr. Callahan will receive
compensation for the periods described in the agreement. In addition, Mr.
Callahan has agreed not to compete with the Company during the six-month
period following his termination of employment.

81
<PAGE>

In 1997, Mr. Roach entered into an employment agreement with the Company
which provides for an annual base salary of $150,000 and an annual cash bonus
depending on the actual annual performance of the Company. The agreement
expires on August 1, 2000. In the event of Mr. Roach's death, the agreement
will terminate. In the event of Mr. Roach's disability, the Company will
continue payment of compensation during the first 12 month period of such
disability to the extent not covered by the Company's disability insurance
policies. In the event his employment is terminated, Mr. Roach will receive
compensation for the periods described in the agreement. In addition, Mr.
Roach has agreed not to compete with the Company during the six-month period
following his termination of employment.

Each of the foregoing employment agreements, except the employment
agreements applicable to Messrs. Jennings and Johnston, grants the executive
certain rights in the event of a change in control of the Company. Under the
terms of each agreement, the Company must pay the executive an amount equal to
twelve months compensation at the executive's current salary and provide
benefits to the executive for twelve months if the Company terminates the
executive's employment without "cause." In addition, if an executive's
employment terminates within six months after a sale of all or substantially
all of the assets of the Company or a merger, consolidation, liquidation or
reorganization of the Company, the Company shall pay the executive an amount
equal to three times the executive's severance benefits otherwise available
under the employment agreement.

STOCK AWARDS PLAN

The Group Maintenance America Corp. 1997 Stock Awards Plan (the "Stock
Awards Plan") was adopted by the Company's Board of Directors to further
promote and align the interests of Directors, key employees and other persons
providing services to the Company with those of its shareholders. Pursuant to
this plan and a stock option plan for non-management employees, the Company
intends to grant options to purchase up to 1,976,734 shares of Company Common
Stock upon consummation of the IPO at an exercise price equal to the IPO
Price.

Purpose. The purpose of the Stock Awards Plan is to promote the long-term
success of the Company and its subsidiaries for the benefit of the Company's
shareholders by encouraging its officers, employees, Directors and consultants
to have meaningful investments in the Company so that, as shareholders
themselves, those individuals will be more likely to represent the views and
interests of other shareholders and by providing incentives to such
individuals for continued services. The Company believes that the possibility
of participation under the Stock Awards Plan will provide this group of
individuals with an incentive to perform more effectively and will assist the
Company and its subsidiaries in attracting and retaining people of outstanding
training, experience and ability.

Term. The Stock Awards Plan will expire on June 30, 2007.

Administration. The Stock Awards Plan is administered by the Compensation
Committee of the Board of Directors (the "Committee"), which has exclusive
authority to make all interpretations and determinations affecting the Stock
Awards Plan. The Committee has the power to determine which officers,
employees, Directors and consultants will receive an award, the time or times
when such award will be made, the type of award and the number of shares of
Company Common Stock to be issued under an award or the value of an award.

Participation. All officers, key employees, Directors and consultants of the
Company and its subsidiaries are eligible to participate in the Stock Awards
Plan, subject to the discretion of the Committee. Participants in the Stock
Awards Plan are also eligible to participate in other incentive plans of the
Company.

Shares Available for Awards. The number of shares of Company Common Stock
that may be issued under the Stock Awards Plan may not exceed 9% of the number
of shares outstanding (determined quarterly), subject to adjustment for
corporate transactions and changes that affect the Company, its shares or
share status. The number of shares of Company Common Stock that may be issued
to employees of the GroupMAC Companies

82
<PAGE>

and companies acquired in the future under the Stock Awards Plan and the stock
option plan for non-management employees will equal 12% of the number of
shares outstanding (determined quarterly), subject to adjustment for corporate
transactions and changes that affect the Company, its shares or share status.
Such shares may consist in whole or in part of authorized and unissued shares
or treasury shares. If an award lapses or is terminated or settled in cash in
lieu of Company Common Stock, the shares of Company Common Stock previously
covered by such awards will be available for future awards under the Stock
Awards Plan.

Awards. The Stock Awards Plan permits grants of the following types of
awards: (i) options, including incentive stock options ("ISOs"), non-qualified
stock options, and reload stock options; (ii) stock appreciation rights
("SARs"); (iii) restricted stock; (iv) performance awards; (v) phantom stock
awards; or (vi) any combination thereof. Under the Stock Awards Plan, ISOs,
non-qualified stock options and SARs may not vest in less than six months from
the award date; provided, however, that the Committee may, in its sole
discretion, shorten or terminate restrictions with respect to an award. Upon
the occurrence of a change of control of the Company, all outstanding awards
under the Stock Awards Plan shall immediately vest and become exercisable.

Stock Options. The Stock Awards Plan provides that the option price pursuant
to which Company Common Stock may be purchased will be determined by the
Committee, provided that the option price of an ISO will not be less than 100%
of the fair market value of a share of Company Common Stock on the date of
grant. The term of each option will be fixed by the Committee. Payment of the
option price may be made in cash, through the delivery of shares of Company
Common Stock having a fair market value on the exercise date equal to the
option exercise price or such other method as may be permitted by the
Committee.

In conjunction with non-qualified stock options awarded under the Stock
Awards Plan or otherwise, the Committee may award an additional option to
purchase a number of shares of Common Stock as determined by the Committee if
a holder exercises all or part of an original option within five years of the
date of grant of the original option. The additional option is deemed to be
granted upon delivery of payment upon exercise of the original option without
further action by the Committee (a "Reload Option"). Reload Options are
subject to all of the terms and conditions of stock options generally, except
that their term ends upon termination of the stock options with respect to
which they are granted.

Stock Appreciation Rights. The Committee may award SARs either separately as
an additional right (the "Additional Right SAR") or in conjunction with a
stock option as an alternative right (the "Alternative Right SAR"). The
exercise of a stock option granted in conjunction with an Alternative Right
SAR terminates the Alternative Right SAR to the extent of the shares acquired
upon exercise of the award. Conversely, the exercise of an Alternative Right
SAR terminates the associated stock option to the extent of the shares with
respect to which such right is exercised. The exercise of an Additional Right
SAR has no effect on the exercisability of any other award and the exercise of
any other award has no effect on the exercisability of an Additional Right
SAR.

Upon the exercise of an SAR, the participant will receive an amount equal to
the excess of the fair market value of a share of Common Stock on the date the
SAR is exercised over the award price. The award price for SARs will be
determined by the Committee, provided that the award price will not be less
than 100% of the fair market value of a share of Company Common Stock on the
date such award was made. For purposes of the limitation on the aggregate
number of shares of Company Common Stock that may be issued under the Stock
Awards Plan, only the number of shares actually issued in connection with the
exercise of an SAR is to be considered.

Restricted Stock. The Committee may make awards of restricted Company Common
Stock on such terms, conditions and restrictions (which may include, but are
not limited to, continuous employment with the Company, achievement of
specific business objectives, and other measurements of individual, business
unit or Company performance), as it determines. Such terms and conditions may
include the manner in which such restricted stock is held, the extent to which
the holder of such stock has rights of a shareholder and the circumstances
under which such shares will be forfeited. None of the shares subject to a
restricted stock award

83
<PAGE>

may be assigned, transferred, pledged or sold by the participant until the
termination or earlier lapse of restrictions relating thereto.

Performance Awards. The Committee may make awards of performance awards,
which are based on future performance of the officer, employee, Director or
consultant, the Company or any business unit in which he is employed or
providing services to during the performance period. The Committee will
establish the performance measures applicable to such performance prior to the
beginning of the performance period but subject to such later revisions as the
Committee may deem appropriate to reflect significant unforeseen events or
changes.

Phantom Stock. Phantom stock awards are awards of Company Common Stock or
rights to receive amounts equal to stock appreciation over a specified period
of time. The Committee may make awards of phantom stock on such terms,
conditions and restrictions as it determines. Such terms and conditions may
include the manner in which such phantom stock is held and the circumstances
under which such units will be forfeited. Phantom stock is an award unit
having a value equivalent to the fair market value of one share of Company
Common Stock, the value of which fluctuates with that of the Company Common
Stock from which such unit derives its value. Each phantom stock award will
have a maximum value established by the Committee at the time of the award.

Settlement of Awards. At the Committee's discretion, awards may be settled
in cash, shares of Common Stock, other awards, or in combinations thereof. The
Committee may also require or permit participants to defer the issuance or
vesting of shares or the settlement of awards in cash. The Committee may also
provide that deferred settlements include the payment or crediting of interest
on the deferral amounts or the payment or crediting of dividend equivalents on
deferred settlements denominated in shares of Company Common Stock. The
Committee may determine the manner in which federal, state or local tax
withholding obligations of the Company will be satisfied including, but not
limited to, the reduction in the amount of stock or cash to be delivered or
paid to the participant or reimbursement by the participant in cash or with
shares of Company Common Stock, at the fair market value on the settlement
date.

INCENTIVE BONUS PROGRAM

The Company has implemented a cash bonus program for the key employees of
its subsidiaries under which awards will be determined based upon the
performance of each subsidiary. The size of the bonus pool will be equal to a
defined percentage of the amount by which the subsidiary's after-tax net
operating profit (as defined) less a charge for capital allocated to the
subsidiary exceeds a similar calculation of the previous year's results. A
certain percentage of earned bonuses are carried over to the following year
for retention purposes and to promote long-term goal achievement. Messrs.
Jennings and Johnston participate in such program in 1997. Messrs. Bryant,
Henninger, Kelly and Sigmund will participate in 1998.

RELATED PARTY TRANSACTIONS

Airtron leases its headquarters offices in Dayton, Ohio and its operating
facilities in Cincinnati and Cleveland, Ohio, Indianapolis, Indiana,
Clearwater, Florida, Dallas, Houston and San Antonio, Texas and Wichita,
Kansas from entities controlled by certain former shareholders of Airtron,
including Messrs. Jennings, Johnston, Seifring and Wilkerson. None of these
leases expire prior to 2008. The aggregate annual base rent to be paid under
these leases is approximately $678,500 with annual increases based on the
consumer price index. The Company believes that the terms of such leases are
no less favorable to the Company than could have been negotiated by the
Company with unaffiliated third parties available under similar leases entered
into on an arm's-length basis.

In the Company's acquisition of Airtron, Mr. Jennings received $3,729,653,
together with 848,074 shares of Company Common Stock and 2,711,344 shares of
Series A preferred stock, par value $0.001 per share, of the Company and Mr.
Johnston received $1,393,474, together with 330,764 shares of Company Common
Stock and

84
<PAGE>

1,057,473 shares of Series A Preferred Stock. Also in the Airtron acquisition,
Richard M. Siefring, a holder of more than 5% of the outstanding Company
Common Stock, received $4,345,177, together with 985,431 shares of Company
Common Stock and 3,150,484 shares of Series A Preferred Stock, and Dale M.
Wilkerson, another holder of more than 5% of the outstanding Company Common
Stock, received, together with his spouse, $3,244,206, together with 739,744
shares of Company Common Stock and 2,365,007 shares of Series A Preferred
Stock. All of such shares of preferred stock will be redeemed at a redemption
price of $1.00 per share out of the net proceeds of the IPO.

In the Company's acquisition of CRPP, each of Messrs. Callahan and Roach
received consideration in the form of 18,400 shares of Company Common Stock
and 230,000 shares of Series H Preferred Stock. In the Company's acquisition
of CRA, each of Messrs. Callahan and Roach received $500,000, together with
250,000 shares of Series H Preferred Stock. All of such shares of preferred
stock will be redeemed at a redemption price of $1.00 per share out of the net
proceeds of the IPO. Each of them may receive additional cash of $500,000,
25,629 shares of Company Common Stock and warrants to purchase 257,000 shares
of Company Common Stock at $17.50 per share depending on the occurrence of
certain events.

In the Company's acquisition of K&N, Andrew Jeffrey Kelly, who will become a
director of the Company, received $1,568,000, together with 403,111 shares of
Company Common Stock and 1,568,000 shares of Series D Preferred Stock. All of
such shares of preferred stock will be redeemed at a redemption price of $1.00
per share out of the net proceeds of the IPO. Mr. Kelly may receive contingent
consideration based on the operating results of K&N for the 15 month period
ended June 30, 1998. The Company estimates that such payments will be
$640,000. K&N entered into a new five year renewable lease with Sigma
Management, a company owned by Mr. Kelly, to replace the existing lease for
the Company's Arlington, Texas facility. The annual base rent to be paid under
this lease is approximately $94,800. The Company believes that the terms of
such lease are no less favorable to the Company than could have been
negotiated by the Company with unaffiliated third parties.

In the Company's pending acquisition of MMI, Fredric J. Sigmund, who will
become a director of the Company, will receive approximately $1,752,564 and
187,775 shares of Company Common Stock. Mr. Sigmund may receive a portion of
the contingent consideration payable to the former shareholders of MMI based
on the operating results of MMI for the 12 month period ended December 31,
1997. The Company estimates that such payments will be approximately $425,000.
MMI will enter into a new ten year renewable lease with F&V Investments, a
company owned by Mr. Sigmund, to replace the existing lease for MMI's Seattle,
Washington facility. The annual base rent to be paid under this lease is
approximately $475,000. The Company believes that the terms of such lease are
no less favorable to the Company than could have been negotiated by the
Company with unaffiliated third parties.

In the Company's pending acquisition of Masters, Ronald D. Bryant, who will
become a director of the Company, will receive approximately $6,254,000 and
464,921 shares of Company Common Stock. Additionally, Masters will enter into
a new six year renewable lease with Mr. Bryant to replace the existing lease
for Masters' Gaithersburg, Maryland facility. The annual base rent to be paid
under this lease is approximately $233,700, with annual increases of 4%. The
Company believes that the terms of such lease are no less favorable to the
Company than could have been negotiated by the Company with unaffiliated third
parties.

In the Company's pending acquisition of Van's, David L. Henninger, who will
become a director of the Company, will receive, together with his spouse,
approximately $1,559,125 and 113,033 shares of Company Common Stock.
Additionally, Van's will enter into a new five-year renewable lease with Mr.
Henninger to replace the existing lease for Van's Delray Beach, Florida
facility. The initial annual base rent to be paid under this lease is
approximately $69,000 with annual increases of 3%. The Company believes that
the terms of such lease are no less favorable to the Company than could have
been negotiated by the Company with unaffiliated third parties.

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<PAGE>

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth, as of the date of this Proxy
Statement/Prospectus, certain information known by the Company with respect to
the ownership of shares of Company Common Stock as to (i) all persons who are
expected to be the beneficial owners of 5% or more of the outstanding shares
of Company Common Stock upon consummation of the IPO, (ii) each director and
each person who has consented to be named as a director (the "named
directors"), (iii) each Named Executive Officer, and (iv) all executive
officers and directors of the Company as a group. Unless otherwise indicated,
each of the following persons may be deemed to have sole voting and
dispositive power with respect to such shares. Information set forth in the
table with respect to beneficial ownership of the Company Common Stock has
been provided to the Company by such holders. Unless otherwise indicated, each
person's address is c/o the Company's principal executive offices at 1800 West
Loop South, Suite 1375, Houston, Texas 77027.

<TABLE>
<CAPTION>
PERCENT OF
AMOUNT AND OUTSTANDING
NATURE OF COMMON STOCK
BENEFICIAL ------------
NAME AND ADDRESS OF OWNERSHIP OF BEFORE AFTER
BENEFICIAL OWNER COMMON STOCK(1) IPO IPO
------------------- --------------- ------ -----
<S> <C> <C> <C>
James P. Norris......... -- -- --
J. Patrick Millinor,
Jr..................... 236,812(2) 2.5% 1.2%
Donald L. Luke.......... -- -- --
Chester J. Jachimiec.... 147,333(3) 1.6% *
Richard S. Rouse........ 125,933(4) 1.3% *
William Michael
Callahan............... 18,400(5) * *
Alfred R. Roach, Jr..... 18,400(5) * *
John M. Sullivan........ 112,050(6) 1.2% *
James D. Weaver......... 96,500(7) 1.0% *
James D. Jennings....... 653,872(8) 6.9% 3.3%
Timothy Johnston........ 330,764(8) 3.5% 1.7%
Ronald D. Bryant........ 464,921(9) -- 2.3%
David L. Henninger...... 113,033(9) -- *
Andrew Jeffrey Kelly.... 403,111 4.2% 2.0%
Thomas B. McDade........ -- -- --
Lucian Morrison......... 2,000 * *
Fredric Sigmund......... 187,775(9)(10) -- *

National City Bank
Dayton, as Trustee of
the Airtron, Inc.
Savings and Profit
Sharing Plan........... 639,074 6.7% 3.2%
c/o Mr. David Smeltzer
6 North Main Street
Dayton, Ohio 45412
Richard M. Siefring..... 985,431(8) 10.4% 4.9%
7813 N. Dixie Drive
Dayton, Ohio 45414
Dale M. Wilkerson....... 527,969(8) 5.6% 2.6%
7813 N. Dixie Drive
Dayton, Ohio 45414
Gordon A. Cain.......... 2,417,950 25.5% 12.1%
Eight Greenway Plaza,
Suite 702
Houston, Texas 77046
All executive officers
and named directors of
the Company as a group
(19 persons)........... 2,992,904 31.2% 14.9%
</TABLE>

86
<PAGE>

- --------
* Beneficially owns less than 1% of the outstanding shares of Company Common
Stock.
(1) The numbers shown do not include an aggregate of 171,333 options or
warrants to purchase Company Common Stock held by such individuals which
are not exercisable within 60 days.
(2) Includes 16,667 shares subject to options exercisable on December 31,
1997.
(3) Includes 16,000 shares held in each of the Paula Ann Jachimiec Trust and
the Sarah Elizabeth Jachimiec Trust of which Mr. Jachimiec is trustee. Mr.
Jachimiec disclaims beneficial ownership of such shares. Includes 15,333
shares subject to options exercisable on December 31, 1997.
(4) Includes 13,333 shares subject to options exercisable on December 31,
1997.
(5) Does not include warrants to purchase 257,000 shares of Common Stock at
$17.50 per share or 25,629 shares of Common Stock that may be issued upon
the occurrence of certain events. See "Related Party Transactions."
(6) Includes 82,050 shares for which Mr. Sullivan has a limited power of
attorney to vote and exercise investment powers until revoked by the
actual owners.
(7) Includes 10,000 shares subject to currently exercisable options.
(8) Includes shares held in employee benefit plans (Jennings--195,728 shares;
Johnston--285,334 shares; and Wilkerson--383,484 shares).
(9) All shares will be issued upon the completion of the Offering.
(10) Includes shares held by employee stock option plans.

87
<PAGE>

THE ACQUISITIONS

The Company entered into exchange agreements with shareholders of the Pre-
IPO Companies (other than Jarrell) and merger agreements with the shareholders
of Jarrell and the IPO Acquisition Companies. With respect to the Pre-IPO
Companies, the Company paid, and with respect to the IPO Acquisition Companies
the Company will pay, an agreed value for all the issued and outstanding
capital stock of each GroupMAC Company based generally on the Company's
evaluation of the operating results and capitalization of such company. In
some cases, the shareholders of a company have the opportunity to receive
additional amounts of purchase price contingent upon the occurrence of future
events. Shareholders of several Pre-IPO Companies also received preferred
stock which will be redeemed for cash (at a redemption price equal to $1.00
per share) with a portion of the proceeds of the IPO.

The following table sets forth for each GroupMAC Company, as of the date of
its acquisition, the consideration paid or to be paid to its shareholders (i)
in cash, (ii) in Company Common Stock, (iii) in Preferred Stock and (iv) in
assumed debt.

<TABLE>
<CAPTION>
SHARES OF SHARES OF
COMMON PREFERRED ASSUMED
CASH(1)(4) STOCK(1)(4) STOCK(1)(5) DEBT
----------- ----------- ----------- -----------
<S> <C> <C> <C> <C>
PRE-IPO COMPANIES:
Airtron..................... $20,848,637 4,652,140 14,873,133 $ 1,289,927
A-ABC/A-1................... 1,886,000 359,302 -- 947,937
Charlie's................... 1,502,502 157,256 -- 112,741
CRPP(2)..................... 450,000 192,123 550,000(2) 78,236
CRA (asset purchase)(2)..... 2,000,000 -- 500,000 --
Costner(2)(3)............... 501,290 65,536 100,000 193,755
Hallmark.................... 2,080,794 105,687 580,000 338,398
Jarrell..................... 150,000 12,698 -- 26,654
K&N(2)...................... 1,568,000 403,111 1,568,000 1,498,995
Sibley(2)................... 1,201,873 62,001 664,691 376,368
USA (asset purchase)........ 435,779 49,804 435,771 100,000
Way Residential (asset
purchase)(2)(3)............ 16,500 6,428 -- --
----------- --------- ---------- -----------
32,641,375 6,066,086 19,271,595 4,963,011
----------- --------- ---------- -----------
IPO ACQUISITION
COMPANIES:(3)
All Service................. 2,311,570 201,804 -- 8,830
Arkansas Mechanical......... 2,121,000 151,500 -- 692,997
Central Carolina............ 3,637,952 281,508 -- 979
Evans....................... 1,167,391 101,915 -- --
Linford(2).................. 651,000 126,037 -- 114,000
MMI(2)...................... 6,001,931 643,064 -- 5,624,398
Masters..................... 6,605,457 491,076 -- 1,834,709
Mechanical.................. 109,000 7,786 -- --
Paul E. Smith............... -- 217,062 -- 325,000
Southeast Mechanical........ 2,149,000 153,571 -- 355,980
Van's....................... 1,559,125 113,034 -- 340,000
Willis...................... 2,257,000 241,786 -- 220,731
Yale........................ 2,215,000 158,214 -- 420,045
----------- --------- ---------- -----------
30,785,426 2,888,357 -- 9,937,669
----------- --------- ---------- -----------
S Corporation Distribu-
tions(4)................... (1,856,250) (119,554) -- --
----------- --------- ---------- -----------
Total................... $61,570,551 8,834,889 19,271,595 $14,900,680
=========== ========= ========== ===========
</TABLE>
- --------
(1) Subject to post-closing adjustments.
(2) The former shareholders of these GroupMac Companies may receive additional
consideration in the form of cash, Company Common Stock or warrants for
Company Common Stock based on the occurance of future events.
(3) The shares of Company Common Stock to be issued are based on an estimated
IPO Price of $14.00 per share.
(4) The cash and Company Common Stock consideration is presented before
anticipated Subchapter S distributions.
(5) Includes 1,713,622 warrants for Preferred Stock.

88
<PAGE>

INFORMATION REGARDING MMI

BUSINESS

MMI was founded in 1965 as MacDonald-Miller Company, Inc. It began as a
company offering HVAC service, maintenance and design/build engineering. In
1968, the company entered the contracting business when it started its sheet
metal operations, and in 1971, it added plumbing and piping services to its
capabilities. MMI's philosophy from the outset was to operate differently than
most other companies by involving employees in management, introducing
concepts such as Management Empowerment and Customer Satisfaction as key
philosophies.

In 1986, the company implemented a corporate restructuring and formed MMI as
a holding company which provided financial and business services to MacDonald-
Miller Company, Inc., which provided the design/build contracting services,
and MacDonald-Miller Service, Inc., which provided the service and maintenance
operations. In 1993, MacDonald-Miller Residential was created as a separate
division of MacDonald-Miller Company, Inc.

MacDonald-Miller Company, Inc. has grown to become one of the major
design/build contractors in the Pacific Northwest. It specializes in a
"cradle-to-grave" philosophy that includes engineering, pre-construction
services, fabrication and installation of complex mechanical systems of all
types. The services offered by MacDonald-Miller Company, Inc. include the
following divisions: Lighting Retrofit Division, Controls Division,
Test/Balancing/Commissioning Division, and a Special Project and Tenant
Improvement Group (which MMI believes to be the largest of its kind in the
Northwest).

MacDonald-Miller Service, Inc. has grown to become one of the largest HVAC
service and maintenance contractors in the Pacific Northwest. It serves a
diverse group of customers from the Canadian border to central Oregon and
provides a full spectrum of specialized mechanical services.

In addition to MMI's main offices which are located in Seattle, Washington,
MMI has a Service and Construction Sub-Office located in Portland, Oregon. In
addition, the Residential Division is located in Redmond, Washington. All
major sheet metal and piping fabrication is done in the Seattle location and
shipped to Portland for installation. The Residential Division does its own
sheet metal fabrication in its Redmond location, with support from the main
fabrication shop in Seattle.

DIRECTORS AND EXECUTIVE OFFICERS

The following table sets forth certain information concerning the directors
and executive officers of the Company, all of whom are expected to serve in
the same capacities for the surviving corporation following the Merger.

<TABLE>
<CAPTION>
NAME AGE POSITION
---- --- --------
<S> <C> <C>
Fredric J. Sigmund.......... 56 President and Chief Executive Officer, Director
James A. MacDonald, Jr...... 53 Chief Financial Officer and Director
Steven C. Lovely............ 53 President of MacDonald-Miller Company, Inc. and
Director
B. Joel Smith............... 45 Executive Vice President of MacDonald-Miller
Company, Inc. and Director
Gary S. Kuhlman............. 48 President of MacDonald-Miller Service, Inc. and
Director
Charles H. Orton............ 50 Executive Vice President--Sales/Marketing of
MacDonald-Miller Service, Inc. and Director
</TABLE>

89
<PAGE>

FREDRIC J. SIGMUND is presently the President and Chief Executive Officer
and a director of MMI and has served in such capacities since 1986. Prior to
that time, he served as the President and Chief Executive Officer of
MacDonald-Miller Company, Inc. from 1974 to 1986 and in various other
capacities with MacDonald-Miller Company, Inc. from 1967 to 1974.

JAMES A. MACDONALD, JR. currently serves as the Chief Financial Officer and
a director of MMI and has served in such capacities since 1986. He had
previously served as the Chief Financial Officer of MacDonald-Miller Company,
Inc. from 1983 to 1986.

STEVEN C. LOVELY is the President of MacDonald-Miller Company, Inc. and has
served in such capacity since 1986. He is also a director of MMI and has
served as a director since 1986.

B. JOEL SMITH is the Executive Vice President of MacDonald-Miller Company,
Inc. and has served in such capacity since 1986. He is also a director of MMI
and has served as a director since 1986.

GARY S. KUHLMAN is and has been the President of MacDonald-Miller Service,
Inc. since 1986 and previously has served in various capacities with
MacDonald-Miller Service, Inc. since 1983. He is also a director of MMI and
has served as a director since 1986.

CHARLES H. ORTON is and has been the Executive Vice President--
Sales/Marketing, Accounting & Branch Operations of MacDonald-Miller Service,
Inc. since 1986. Prior to that date, he also served as Sales Manager of
MacDonald-Miller Service, Inc. since 1984. He is also a director of MMI and
has served as a director since 1986.

EXECUTIVE COMPENSATION

The following table shows compensation paid by MMI during the fiscal years
indicated to the Chief Executive Officer and the five other executive officers
("Named MMI Executive Officers") of MMI:

SUMMARY COMPENSATION TABLE

<TABLE>
<CAPTION>
ANNUAL COMPENSATION
--------------------------------
NAME AND PRINCIPAL FISCAL OTHER ANNUAL ALL OTHER
POSITION YEAR SALARY BONUS COMPENSATION(1) COMPENSATION
------------------ ------ -------- ------- --------------- ------------
<S> <C> <C> <C> <C> <C>
Fredric J. Sigmund....... 1994 $138,916 $ 0 -- $7,540(2)
President and Chief
Executive Officer 1995 151,737 0 -- 7,540(2)
1996 151,653 0 $15,000 7,540(2)
James A. MacDonald, Jr... 1994 $105,188 $25,000 -- --
Chief Financial Officer 1995 106,239 72,906 -- 71,017(3)
1996 110,290 31,641 9,120 --
Steven C. Lovely......... 1994 $107,377 $25,000 -- --
President--MacDonald-
Miller Company, Inc. 1995 107,082 82,906 -- 71,017(3)
1996 101,640 31,641 22,620 --
B. Joel Smith............ 1994 $106,740 $25,000 -- --
Executive Vice
President-- 1995 108,212 82,906 -- 71,017(3)
MacDonald-Miller
Company, Inc. 1996 107,809 31,641 15,396 --
Gary S. Kuhlman.......... 1994 $107,922 $25,000 -- --
President--MacDonald-
Miller Service, Inc. 1995 107,312 72,906 -- --
1996 104,978 31,641 -- --
Charles H. Orton......... 1994 $105,218 $25,000 -- --
Vice President--
MacDonald-Miller
Service, Inc. 1995 104,208 72,906 -- 71,017(3)
1996 102,085 31,641 18,132 --
</TABLE>

90
<PAGE>

- --------
(1) Represents amounts paid to such officers in consideration for such
officers' agreement to provide joint and several guaranties of certain of
MMI's obligations.
(2) Represents the amount of premiums paid by MMI on behalf of Mr. Sigmund for
a reverse split dollar life insurance policy.
(3) Represents the amounts of deferred compensation allocable to each
participant's account, for the period indicated, in MMI's Executive
Management Incentive Compensation Plan. Such amounts are subject to
reduction or elimination in the event of future operating losses of MMI.

OPTIONS

No options to purchase shares of MMI Common Stock were granted to the Named
MMI Executive Officers during the 1996 fiscal year. The following table sets
forth information with respect to the value realized upon each exercise of
options to purchase shares of MMI Common Stock by the Named MMI Executive
Officers during the 1996 fiscal year and the value of unexercised options held
as of the end of such fiscal year, by the Named MMI Executive Officers. All of
these options are expected to be exercised by the holders thereof immediately
prior to the consummation of the Merger.

<TABLE>
<CAPTION>
NUMBER OF SECURITIES VALUE OF UNEXERCISED
UNDERLYING UNEXERCISED IN-THE-MONEY OPTIONS AT
OPTIONS AT DECEMBER 31, 1996
DECEMBER 31, 1996 ($)(1)
----------------------- -----------------------
NUMBER OF
SHARES VALUE
ACQUIRED ON REALIZED NOT NOT
NAME EXERCISE ($)(1) EXERCISABLE EXERCISABLE EXERCISABLE EXERCISABLE
- ---- ----------- -------- ----------- ----------- ----------- -----------
<S> <C> <C> <C> <C> <C> <C>
Fredric J. Sigmund...... 0 0 0 0 0 0
James A. MacDonald, Jr.. 555 12,238 1,110 1,115 24,478 24,586
Steven C. Lovely........ 611 13,473 1,222 1,223 26,945 26,967
B. Joel Smith........... 611 13,473 1,222 1,223 26,945 26,967
Gary S. Kuhlman......... 500 11,025 1,000 1,000 22,050 22,050
Charles H. Orton........ 500 11,025 1,000 1,000 22,050 22,050
</TABLE>
- --------
(1) The value has been determined based upon the difference between the
exercise price of the options ($20.00 in all cases) and the fair market
value of the shares acquired upon exercise, or underlying such options, as
of December 31, 1996. Because there is no public market for the shares of
MMI Common Stock, the fair market value has been determined based upon an
independent, third party valuation of such shares obtained for purposes of
the ESOP. At December 31, 1996, such valuation was $42.05 per share.

RELATED PARTY TRANSACTIONS

MMI leases its facility in Seattle, Washington from F&V Investments, a
company owned by Fredric J. Sigmund, the President and Chief Executive Officer
of MMI pursuant to a lease expiring in 2003. MMI believes that the terms of
such lease are no less favorable to MMI than would be available under a
similar lease entered into on an arm's length basis.

Upon consummation of the Merger, MMI will enter into a new ten year
renewable lease with F&V Investments to replace the existing lease for MMI's
Seattle, Washington facility. The annual base rent to be paid under this lease
is approximately $475,000. MMI believes that the terms of this lease are no
less favorable to MMI than would be available under a similar lease entered
into on an arm's length basis.

Also upon consummation of the Merger, each of the Principal Shareholders
will enter into an employment agreement with MMI which provides for an annual
salary of $120,000 and a bonus based on MMI's future performance. Each of the
agreements is for a three year term. In the event of a Principal Shareholder's
death, such Principal Shareholder's agreement will terminate. In the event of
a Principal Shareholder's disability, MMI will continue payment of
compensation during the first six month period of such disability to the
extent not

91
<PAGE>

covered by MMI's disability insurance policies. In the event a Principal
Shareholder's employment is terminated, such Principal Shareholder will
receive compensation for the periods described in the agreement. In addition,
generally, each Principal Shareholder has agreed not to compete with MMI until
the later to occur of (i) three years after the date of the agreement or (ii)
one year following such Principal Shareholder's termination of employment.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth, as of the date of this Proxy
Statement/Prospectus, certain information known by MMI with respect to the
ownership of shares of MMI Common Stock as to (i) all persons who are the
beneficial owners of 5% or more of the outstanding shares of MMI Common Stock,
(ii) each director and each Named MMI Executive Officer, and (iii) all
executive officers and directors of MMI as a group. Unless otherwise
indicated, each of the following persons may be deemed to have sole voting and
dispositive power with respect to such shares. Information set forth in the
table with respect to beneficial ownership of MMI's Common Stock has been
provided to MMI by such holders. Each person's address is c/o MMI's principal
executive offices at 7717 Detroit Ave. S.W., Seattle, Washington 98106.

<TABLE>
<CAPTION>
AMOUNT AND
NATURE OF PERCENT OF
BENEFICIAL OUTSTANDING
OWNERSHIP OF COMMON
NAME AND ADDRESS OF BENEFICIAL OWNER COMMON STOCK(1) STOCK
------------------------------------ --------------- -----------
<S> <C> <C>
The MacDonald-Miller Industries, Inc. Employee
Stock Ownership
Plan and Trust................................ 56,937(2) 40.9%
Fredric J. Sigmund............................. 40,634(3)(4) 29.2
B. Joel Smith.................................. 12,916(3)(4)(5) 9.3
Steven C. Lovely............................... 11,780(3)(4)(5) 8.5
James A. MacDonald, Jr......................... 10,134(3)(4)(5) 7.3
Charles H. Orton............................... 7,542(3)(4)(5) 6.9
Gary S. Kuhlman................................ 7,092(3)(4)(5) 5.1
All executive officers and directors of MMI as
a group (6 in number)......................... 92,098(3)(4)(5) 66.2
</TABLE>
- --------
(1) Based on 139,140 shares of MMI Common Stock outstanding as of the
Effective Time.
(2) Pursuant to the terms of the ESOP, the participants in the ESOP have the
power to direct the voting of shares held by the ESOP that are
attributable to such participants. The Trustees of the ESOP are the
directors of MMI, Messrs. Sigmund, Smith, Lovely, MacDonald, Orton and
Kuhlman. For purposes of this table, only the shares attributable to such
individuals as participants in the ESOP have been included in the number
of shares beneficially owned by such persons. See note (3) below.
(3) Includes shares owned by the ESOP for which each individual has the power
to direct the voting. The number of shares so beneficially owned by each
executive officer and director of MMI is as follows: Sigmund--6,606
shares; Smith--2,791 shares; Lovely--1,655 shares; MacDonald--1,134
shares; Orton--1,667 shares; and Kuhlman--1,067 shares.
(4) Includes bonus shares issued to and beneficially owned by each executive
officer and director of MMI as follows: Sigmund--1,500 shares; Smith--
3,000 shares; Lovely--3,000 shares; MacDonald--3,000 shares; Orton--3,000
shares; and Kuhlman--1,500 shares.
(5) Includes options to purchase shares of MMI Common Stock. In connection
with the Merger, the MMI Board has accelerated the vesting and
exercisability of all outstanding options, subject to the consummation of
the Merger. Consequently, for purposes of this table, the holders of such
options are deemed to beneficially own the shares underlying all such
options. The number of shares so beneficially owned by each such executive
officer and director of MMI is as follows: Smith--2,445 shares; Lovely--
2,445 shares; MacDonald--2,225 shares; Orton--2,000 shares; and Kuhlman--
2,000 shares.

92
<PAGE>

DESCRIPTION OF COMPANY CAPITAL STOCK

GENERAL

Under the Company's Articles of Incorporation, as amended (the "Articles"),
the Company has authority to issue 150,000,000 shares of capital stock,
consisting of 50,000,000 shares of Preferred Stock, par value $0.001 per share
("Preferred Stock"), and 100,000,000 shares of Company Common Stock, par value
$0.001 per share. As of the date of this Prospectus, the Company had
outstanding 9,486,396 shares of Company Common Stock and 17,557,973 shares of
Preferred Stock (13,159,511 shares of Series A Preferred Stock, 100,000 shares
of Series C Preferred Stock, 1,568,000 shares of Series D Preferred Stock,
580,000 shares of Series E Preferred Stock, 664,691 shares of Series F
Preferred Stock, 500,000 shares of Series H Preferred Stock, 435,771 shares of
Series I Preferred Stock and 550,000 shares of Series G Preferred Stock). The
Company expects that all of the outstanding Preferred Stock and warrants for
1,713,622 shares of Series A Preferred Stock will be redeemed at a price of
$1.00 per share out of the net proceeds of the IPO, although there can be no
assurance that such redemption will be fully effected. If and when so
redeemed, all such shares of Preferred Stock will be authorized and subject to
reissuance by the Company.

The following summary description of the material features of the capital
stock of the Company is intended as a summary only and is qualified in its
entirety by reference to the Articles, a copy of which has been filed as an
exhibit to the Registration Statement of which this Proxy Statement/Prospectus
is a part.

PREFERRED STOCK

The Articles authorize the issuance of Preferred Stock in one or more series
having designations, rights and preferences determined from time to time by
the Board of Directors. Accordingly, the Board of Directors is empowered,
without approval of holders of Company Common Stock, to issue Preferred Stock
with dividends, liquidation, conversion, voting or other rights that could
adversely affect the voting power or other rights of the holders of the
Company Common Stock. In the event of issuance, the Preferred Stock could be
used, under certain circumstances, as a method of discouraging, delaying or
preventing a change in control of the Company. Although the Company has no
present intention to issue any additional shares of its Preferred Stock, there
can be no assurance that it will not do so in the future.

The following paragraphs in this section describe the Series A Preferred
Stock. The rights, preferences and designations of the Series B, C, D, E, F,
G, H and I Preferred Stock are virtually the same as those of the Series A
Preferred Stock.

The Series A Preferred Stock ranks prior to the Company Common Stock and any
other class of stock of the Company expressly made junior to the Series A
Preferred Stock with respect to rights upon liquidation, dissolution or
winding up. The Series A Preferred Stock will rank on a parity with any other
series of Preferred Stock whose terms provide that such series ranks on a
parity with the Series A Preferred Stock and will, after being approved by
holders of a majority of the Series A Preferred Stock, rank junior to any
series of Preferred Stock whose terms provide that such series ranks senior to
the Series A Preferred Stock.

Dividends

In the event that Company Common Stock is not publicly traded by June 30,
1999, the holders of record of shares of Series A Preferred Stock shall be
entitled to be paid dividends (which shall accrue commencing July 1, 1999) out
of funds of the Company available for the payment of dividends subject to
applicable laws and any agreements to which the Company is a party, at the
annual rate of $0.08 per whole share, and no more, payable semi-annually on
the first day of January and July in each year (each a "Dividend Payment
Date"), beginning on January 1, 2000.

Such dividends shall be payable in cash or, in the event such payment in
cash is prohibited by any loan agreement, indenture, mortgage, note, security
agreement, deed of trust, guaranty or other instrument evidencing, securing or
guaranteeing indebtedness for borrowed money (collectively, "Debt Agreements"
and individually

93
<PAGE>

a "Debt Agreement"), in lieu of payment in cash of all or any portion of any
dividend otherwise payable, such dividends may be paid, at the option of the
Board of Directors, and if permitted by the Debt Agreements then in effect, in
duly authorized, fully paid and nonassessable shares of Series A Preferred
Stock (the "Additional Shares"). If the Board of Directors determines to pay
all or any portion of a dividend in Additional Shares, the number of such
Additional Shares issuable by the Company shall be one whole share of Series A
Preferred Stock for each $1.00 of dividend declared. No fractional shares of
Series A Preferred Stock shall be issued as a dividend payment; provided,
however, that the cash amount determined by multiplying such fraction of a
share by $1.00 shall cumulate as described in the next paragraph.

If at any time dividends with respect to the shares of Series A Preferred
Stock are not paid in full whether in cash, Additional Shares or any
combination thereof (the "Omitted Dividends"), the Series A Preferred Stock
shall cumulate such dividend and accrue additional dividends as though such
Omitted Dividends had been paid in Additional Shares and such Additional
Shares had thereafter accrued dividends in accordance with the terms of the
Series A Preferred Stock (the "Cumulative Dividends"). Such Cumulative
Dividends shall be fully cumulative (whether or not earned or declared) and
shall be deemed to constitute accrued and unpaid dividends for all purposes
even if such additional dividends are not specifically mentioned in any
particular context.

Dividends will be payable to the holders of record of the Series A Preferred
Stock appearing on the stock books of the Company on such record dates as may
be declared by the Board of Directors, not more than 60 days nor less than 10
days before a Dividend Payment Date. Dividends on account of arrears for any
past dividend periods for which dividends were payable may be declared and
paid at any time, without reference to any regular Dividend Payment Date, to
holders of record on a date not more than 60 days nor less than 10 days before
the payment date thereof.

If any shares of Series A Preferred Stock are outstanding on or after June
30, 1999, the Company thereafter (a) will not declare or pay or set apart for
payment any dividends or make any other distribution on any junior securities
and (b) will not redeem, purchase or otherwise acquire for value, or set apart
money for any sinking or other analogous fund for the redemption or purchase
of, any shares of junior securities, unless all accrued but unpaid dividends
with respect to the Series A Preferred Stock shall have been paid by the
Company; provided, however, that the foregoing shall not prohibit (1) the
payment or declaration and setting aside of a dividend payable in junior
securities or a redemption, purchase or acquisition of junior securities with
shares of junior securities or (2) a redemption, purchase or acquisition of
junior securities from any terminated employee of the Company or any of its
affiliated corporations. No dividend will be declared or paid or set apart for
payment on any security on parity with the Series A Preferred Stock for any
dividend period, unless at the same time a dividend for the same dividend
period, determined ratably in proportion to the respective aggregate dividends
otherwise payable with respect thereto, shall be paid or declared and set
apart for payment (in cash and/or Additional Shares, as provided above) on the
Series A Preferred Stock.

Liquidation Preference

In the event of any liquidation, dissolution or winding up of the Company,
whether voluntary or involuntary, holders of Series A Preferred Stock then
issued and outstanding will be entitled to payment of $1.00 per share out of
the available assets of the Company, in preference to the holders of the
Company Common Stock or any other class or series of stock ranking junior to
such Series A Preferred Stock upon liquidation, dissolution or winding up.

Redemption

The Series A Preferred Stock is redeemable at the option of the Company at
any time and from time to time, in whole or part, at a redemption price of
$1.00 per share. If the Company chooses to redeem less than all of the
outstanding shares of the Series A Preferred Stock, the redemption must be
effected on a pro rata basis. The Series A Preferred Stock must be redeemed in
full effective upon the closing of an initial public offering of Company
Common Stock.

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<PAGE>

Voting Rights

Initially, there are no voting rights except for those mandatorily required
by law; however, in the event that Company Common Stock is not publicly traded
by June 30, 1999, the Series A Preferred Stock shall have a .14286 vote on all
Company matters (including the election of directors).

COMPANY COMMON STOCK

Voting Rights. Holders of Company Common Stock are entitled to one vote for
each share on all matters on which shareholders generally are entitled to
vote, including elections of directors. Upon consummation of the IPO, the
Board of Directors will be classified into three classes of five directors,
with the term of each class expiring on a staggered basis. The classification
of the Board of Directors may make it more difficult to change the composition
of the Board of Directors and thereby may discourage or make more difficult an
attempt by a person or group to obtain control of the Company. The Articles do
not provide for cumulative voting for the election of directors. Holders of
Company Common Stock have no preemptive, subscription, redemption or
conversion rights.

Dividends. Subject to the preferential rights of any outstanding Preferred
Stock that may be created by the Board of Directors under the Articles, or
that may remain outstanding after the IPO, dividends may be paid to holders of
Company Common Stock when, as and if declared by the Board of Directors out of
funds legally available for such purpose. The declaration and payment of
dividends on Company Common Stock could be restricted by the terms of any
Preferred Stock issued. Under the TBCA, dividends may be paid by the Company
out of "surplus" (as defined under Article 1.02 of the TBCA) or, if there is
no surplus, out of net profits for the fiscal year in which the dividends are
declared and/or the preceding fiscal year. On a pro forma basis, at June 30,
1997, the Company had surplus of approximately $21 million (on a book value
basis) for the payment of dividends, and the Company will also be able to pay
dividends out of any net profits for the current and/or prior fiscal year, if
any. However, the Company does not intend to pay dividends at the present
time. See "Summary--Comparative Per Share Data--Dividends" and "Description of
Bank Credit Agreement."

Liquidation. In the event of the dissolution or winding up of the Company,
after payment or provision for payment of debts and other liabilities of the
Company and any other series or class of the Company's stock hereafter issued
that ranks senior as to liquidation rights to the Company Common Stock, the
holders of Company Common Stock will be entitled to receive pro rata all
remaining assets of the Company available to such holders. All outstanding
shares of Company Common Stock are, and the shares of Company Common Stock to
be issued in connection with the Merger will be, duly and validly issued,
fully paid and nonassessable.

Miscellaneous. There is no established public trading market for the Company
Common Stock. The Company Common Stock has been approved for listing on the
New York Stock Exchange.

The transfer agent and registrar for the Company Common Stock is ChaseMellon
Shareholder Services, L.L.C.

STATUTORY BUSINESS COMBINATION PROVISION

The Company is subject to Article 13 of the TBCA ("Article 13") which, with
certain exceptions, prohibits a Texas corporation from engaging in a "business
combination" (as defined in Article 13) with any shareholder who is a
beneficial owner of 20% or more of the corporation's outstanding stock for a
period of three years after such shareholder's acquisition of a 20% ownership,
unless: (i) the board of directors of the corporation approves the transaction
or the shareholder's acquisition of shares prior to the acquisition or (ii)
two-thirds of the unaffiliated shareholders of the corporation approve the
transaction at a shareholders' meeting. Shares that are issuable, but have not
yet been issued, pursuant to options, conversion or exchange rights or other
agreements are not considered outstanding for purposes of Article 13.

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CERTAIN PROVISIONS OF THE ARTICLES OF INCORPORATION AND BYLAWS

The Articles contain a "fair price" provision which generally requires that
certain mergers, business combinations and similar transactions constituting a
"Business Transaction" with a "Related Person" (generally the beneficial owner
of at least 10 percent of the Company's voting stock) be approved by the
holders of at least 80 percent of the Company's voting stock, unless (i) the
transaction is approved by at least 80 percent of the "Continuing Directors"
of the Company, who constitute a majority of the entire board, (ii) the
transaction occurs more than five years after the last acquisition of the
Company voting stock by the Related Person or (iii) certain "fair price" and
procedural requirements are satisfied. The Articles define "Business
Transaction" as (i) any merger or consolidation involving the Company or a
subsidiary of the Company, (ii) any sale, lease, exchange, transfer or other
disposition (in one transaction or a series of transactions), including
without limitation a mortgage or any other security device, of all or any
substantial part of the assets either of the Company or of a subsidiary of the
Company, (iii) any sale, lease, exchange, transfer or other disposition of all
or any substantial part of the assets of an entity to the Company or a
subsidiary of the Company, (iv) the issuance, sale, exchange, transfer or
other disposition by the Company or a subsidiary of the Company of any
securities of the Company or any subsidiary of the Company, (v) any
recapitalization or reclassification of the Company's securities (including
without limitation, any reverse stock split) or other transaction that would
have the effect of increasing the voting power of a Related Person, (vi) any
liquidation, spinoff, splitoff, splitup or dissolution of the Company, and
(vii) any agreement, contract or other arrangement providing for any of the
transactions described in this definition of Business Transaction. "Continuing
Director" is defined to mean a director who either was a member of the Board
of Directors of the Company prior to the time such Related Person became a
Related Person or who subsequently became a director of the Company and whose
election, or nomination for election by the Company's shareholders, was
approved by a vote of at least 80 percent of the Continuing Directors then on
the Board of Directors, either by a specific vote or by approval of the proxy
statement issued by the Company on behalf of the Board of Directors in which
such person is named as nominee for director, without an objection to such
nomination; provided, however, that in no event shall a director be considered
a "Continuing Director" if such director is a Related Person and the Business
Transaction to be voted upon is with such Related Person or is one in which
such Related Person otherwise has an interest (except proportionately as a
shareholder of the Company).

In accordance with the Company's Bylaws, a shareholder of the Company may
nominate persons for election to the Board of the Company if the shareholder
submits such nomination, together with certain related information required by
the Company's Bylaws, in writing to the Secretary of the Company not less than
50 days nor more than 75 days prior to the date of any annual meeting of
shareholders.

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DESCRIPTION OF THE BANK CREDIT AGREEMENT

GENERAL

In connection with this Offering, the Company expects to enter into a credit
agreement (the "Bank Credit Agreement") with lenders (the "Lenders") and Texas
Commerce Bank National Association, as Agent (the "Agent"). The Agent has
committed to provide, or arrange for a syndicate of Lenders to provide, the
Company, subject to certain terms and conditions, the entire $75 million
principal amount of the revolving credit facility described below. The
following description summarizes the material provisions the Company currently
expects will be included in the Bank Credit Agreement. The following
description does not purport to be complete and is subject to, and is
qualified in its entirety by reference to, the provisions of the Bank Credit
Agreement, which have yet to be fully negotiated.

AMORTIZATION; PREPAYMENTS

Loans under the Bank Credit Agreement may be prepaid at any time without
premium or penalty in reasonable minimum amounts. Prepayments of Eurodollar
borrowings on any day other than the last day of an interest period will be
required to be accompanied by a payment to the Lenders of various costs,
expenses or losses, if any, incurred as a result of such prepayment. The
amount available under the Bank Credit Agreement will be payable in full on
its maturity date.

SECURITY; GUARANTEES

Borrowings under the Bank Credit Agreement will be guaranteed by the
Company's Material subsidiaries (as defined in the Bank Credit Agreement),
including future Material subsidiaries. The obligations of the Company under
the Bank Credit Agreement and the obligations under the guarantees will be
secured by a first priority lien on the accounts receivable and inventory of
the Company and its Material subsidiaries, including any future subsidiaries,
and by a pledge of stock of its domestic subsidiaries.

INTEREST RATES

Loans under the Bank Credit Agreement will bear interest at a rate per annum
at the Company's option, of either (i) the Alternate Base Rate (which is equal
to the greater of the Federal Funds Effective Rate (as defined in the Bank
Credit Agreement) plus .5% or the Prime Rate (as defined in the Bank Credit
Agreement) plus a margin depending on the ratio of indebtedness for borrowed
money to Adjusted EBITDA (as defined in the Bank Credit Agreement), or (ii)
the Eurodollar Rate (as defined in the Bank Credit Agreement) plus a margin,
depending on the ratio of indebtedness for borrowed money to Adjusted EBITDA.

FEES, EXPENSES AND COSTS; CREDIT FACILITIES

The terms of the Bank Credit Agreement will require the Company to pay the
following fees in connection with the maintenance of loans under the Bank
Credit Agreement: (i) commitment fees to be paid to the Lenders in amounts
between .25% and .375% per annum with respect to the unused commitments under
the Bank Credit Agreement depending on the ratio of indebtedness for borrowed
money to Adjusted EBITDA, payable quarterly in arrears until such time as such
facility is terminated; and (ii) administration fees payable annually to the
Agent. In addition, the Company will pay various underwriting and arrangement
fees and closing costs in connection with the origination and syndication of
the Bank Credit Agreement.

The Company will also be required to reimburse the Agent for all reasonable
out-of-pocket costs and expenses incurred in the preparation, documentation
and administration of the Bank Credit Agreement and to reimburse the Lenders
for all reasonable costs and expenses incurred in connection with the
enforcement of their rights in connection with a default or the enforcement of
the Bank Credit Agreement. The Company will

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indemnify the Agent and the Lenders and their respective officers, directors,
shareholders, employees, agents and attorneys against certain costs, expenses
(including fees and disbursements of counsel) and liabilities arising out of
or relating to the Bank Credit Agreement and the transactions contemplated
thereby. The Lenders also will be entitled to be reimbursed for certain
reserve requirements and increases therein, changes in law and circumstances,
taxes (other than on overall net income), capital adequacy, and consequential
costs. Further, the inability to determine Eurodollar Rates or the possible
future illegality of the Eurodollar Rate option will result in such rate
option being unavailable.

COVENANTS

The Bank Credit Agreement will contain substantial restrictive covenants
limiting the ability of the Company and its subsidiaries to: (i) incur
Indebtedness (as defined in the Bank Credit Agreement), including contractual
contingent obligations; (ii) pay certain debt after default; (iii) create or
allow to exist liens or other encumbrances; (iv) transfer assets except for
sales and other transfers of inventory or surplus, immaterial or obsolete
assets in the ordinary course of business; (v) enter into mergers,
consolidations and asset dispositions of all or substantially all of its
properties; (vi) make investments; (vii) extend credit to any entity; (viii)
sell, transfer or otherwise dispose of any class of stock or the voting rights
of any subsidiary of the Company; (ix) enter into transactions with related
parties other than on an arm's-length basis on terms no less favorable to the
Company than those available from third parties; (x) amend certain agreements;
(xi) make any material change in the nature of the business conducted by the
Company; (xii) pay dividends or redeem shares of capital stock; and (xiii)
make capital expenditures.

In addition, the Bank Credit Agreement will contain covenants that, among
other things and with certain exceptions, will require the Company and its
subsidiaries to: (i) maintain the existence, qualification and good standing
of the Company and its subsidiaries; (ii) comply in all material respects with
all material applicable laws; (iii) maintain material properties, rights and
franchises; (iv) deliver certain financial and other information; (v) maintain
specified insurance; (vi) pay taxes; and (vii) notify the Lenders of any
default under the Loan Documents (as defined in the Bank Credit Agreement) and
of certain other material events.

Under the Bank Credit Agreement, the Company will be required to satisfy
certain financial covenants and tests, including (i) a fixed charge coverage
ratio of not less than 1.20 to 1.0; (ii) a minimum tangible net worth that is
positive; (iii) a ratio of total indebtedness for borrowed money to
Capitalization of not greater than 55%; and (iv) a minimum Consolidated Net
Worth (as defined in the Bank Credit Agreement) equal to the net worth at the
closing of the Bank Credit Agreement less $750,000 plus 100% of the net
proceeds of any equity issued plus 75% of cumulative net income after the
closing date. Changes in generally accepted accounting principles that
materially affect financial covenants may result in modifications to the
financial covenants with the view to placing the covenants on the same
economic basis as before the change in generally accepted accounting
principles.

EVENTS OF DEFAULT

Events of Default under the Bank Credit Agreement will include, subject to
certain applicable notice and grace periods, the following: (i) a default in
the payment when due of any principal, interest, fees or other amount under
the Bank Credit Agreement; (ii) a default by the Company under any debt
instrument in excess of $500,000, or the occurrence of any event or condition
that enables the holder of such debt to accelerate the maturity thereof; (iii)
any material breach of any representation, warranty or statement in, or
failure to perform any duty or covenant under the Bank Credit Agreement or any
of the Loan Documents; (iv) commencement of voluntary or involuntary
bankruptcy, insolvency or similar proceedings by or against the Company or any
Material subsidiary; (v) any judgment or order in excess of $500,000 net of
confirmed insurance remaining undischarged or unstayed for longer than certain
periods; and (vi) a Change of Control (as defined in the Bank Credit
Agreement).

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COMPARISON OF THE RIGHTS OF HOLDERS OF
THE COMPANY COMMON STOCK AND MMI COMMON STOCK

GENERAL

As a consequence of the Merger, former holders of MMI Common Stock will
become shareholders of the Company and the rights of all such former MMI
shareholders will thereafter be governed by the Company's Articles, the
Company's Bylaws and the Texas Business Corporation Act (the "TBCA"). The
Principal Shareholders will also be subject to the Stock Transfer Restriction
Agreement referred to under "The Merger--Federal Securities Law Consequences."
The rights of the holders of MMI Common Stock currently are governed by the
MMI Articles of Incorporation, the MMI Bylaws and the Washington Business
Corporation Act (the "WBCA"). The following summary, which does not purport to
be a complete statement of the general differences among the rights of the
shareholders of the Company and MMI, sets forth the material differences
between the Company Articles and the MMI Articles of Incorporation, the
Company Bylaws and the MMI Bylaws and the TBCA and the WBCA. The summary is
qualified by reference to the full text of each of such documents and the TBCA
and the WBCA.

MERGERS AND OTHER FUNDAMENTAL TRANSACTIONS

Texas law generally requires that a merger, consolidation, sale of all or
substantially all of the assets or dissolution of a corporation be approved by
the holders of at least two-thirds of the outstanding shares entitled to vote,
unless the corporation's articles of incorporation provide otherwise. The
Articles of the Company contain no such provision and, thus, such actions
require approval by the affirmative vote of holders of at least two-thirds of
the outstanding shares entitled to vote thereon. Under Washington law, a plan
of merger to be authorized must be approved by each voting group entitled to
vote separately on the plan by two-thirds of all the votes entitled to be cast
on the plan by that voting group, unless the articles of incorporation provide
for approval by a lesser vote or for a lesser vote by separate voting groups,
so long as the vote provided for each voting group entitled to vote separately
on the plan of merger is not less than a majority of all the votes entitled to
be cast on the plan of merger by that voting group (the MMI Articles of
Incorporation do not allow a lesser number).

MERGERS WITHOUT SHAREHOLDER APPROVAL

Under Article 5.03 of the TBCA, unless the articles of incorporation
otherwise require (the Company Articles do not require otherwise), action by
the shareholders of a corporation on a plan of merger will not be required if:
(i) the corporation is the sole surviving corporation in the merger; (ii) the
articles of incorporation of the corporation following the merger will not
differ from its articles of incorporation before the merger; (iii) each
shareholder of the corporation prior to the merger will hold the same number
of shares, with identical designations, preferences, limitations and relative
rights, immediately after the merger as it held prior to the merger; (iv) the
voting power of the number of voting shares outstanding immediately after the
merger, plus the voting power of the number of voting shares issuable as a
result of the merger, will not exceed by more than 20% the voting power of the
number of voting shares of the corporation outstanding immediately before the
merger; (v) the number of participating shares outstanding immediately after
the merger, plus the number of participating shares issued as a result of the
merger, will not exceed by more than 20% the total number of participating
shares of the corporation outstanding immediately before the merger; and (vi)
the board of directors of the corporation adopts a resolution approving the
plan of merger. Additionally, no vote of shareholders is required for the
merger of a Texas corporation with a corporation in which it holds at least
90% of the outstanding shares of each class and series of such corporation.

Unless the articles of incorporation otherwise provide (the MMI Articles of
Incorporation do not provide otherwise), Washington law permits a corporation
to consummate a merger in which a corporation is the surviving corporation
without approval of the shareholders of the surviving corporation if (i) the
articles of incorporation of the surviving corporation will not differ from
its articles of incorporation before the merger; (ii)

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each shareholder of the surviving corporation whose shares were outstanding
immediately before the effective date of the merger will hold the same number
of shares, with identical designations, preferences, limitations, and relative
rights, immediately after the merger; (iii) the number of voting shares
outstanding immediately after the merger, plus the number of voting shares
issuable as a result of the merger, either by the conversion of securities
issued pursuant to the merger or the exercise of rights and warrants issued
pursuant to the merger, will not exceed the total number of voting shares of
the surviving corporation authorized by its articles of incorporation
immediately before the merger; and (iv) the number of participating shares
outstanding immediately after the merger, plus the number of participating
shares issuable as a result of the merger, either by the conversion of
securities issued pursuant to the merger or the exercise of rights and
warrants issued pursuant to the merger, will not exceed the total number of
participating shares authorized by its articles of incorporation immediately
before the merger.

APPRAISAL RIGHTS

Article 5.11 of the TBCA provides for appraisal rights in the case of a plan
of merger or exchange or a sale of all or substantially all of the
corporation's assets where shareholder approval is required. No appraisal
rights are available for a plan of merger or plan of exchange if (i) the
shares of the corporation held by the shareholder are listed on a national
securities exchange or held of record by at least 2,000 holders and (ii) the
shareholder is not required to accept any consideration other than (a) shares
of a corporation that will be listed on a national securities exchange or will
be held of record by at least 2,000 holders and (b) cash in lieu of fractional
shares.

Section 23B.13.020 of the WBCA provides for appraisal or dissenters' rights
only in the case of a statutory merger (i) if shareholder approval is required
for the merger or the shareholder is entitled to vote on the merger or (ii) if
the corporation is a subsidiary that is merged with its parent. Shareholders
are entitled to appraisal rights upon a sale of all or substantially all of
the assets of the corporation not made in the usual and regular course of its
business under Texas law and Washington law.

AMENDMENTS TO CHARTER

Article 4.02 of the TBCA provides that an amendment to a corporation's
articles of incorporation must be approved by the board of directors and by
the affirmative vote of holders of at least two-thirds of the outstanding
shares entitled to vote, unless the corporation's articles of incorporation
provide otherwise. The Articles of the Company contain no such provision and,
thus, the requirements of Article 4.02 of the TBCA control. Section 23B.10.030
of the WBCA provides that an amendment to a corporation's certificate of
incorporation must be approved by the board of directors and by the
affirmative vote of each voting group entitled to vote thereon by two-thirds,
or, in the case of a public company, a majority of all of the votes entitled
to be cast by that voting group. The articles of incorporation of a
corporation other than a public company may provide for a lesser vote, so long
as the vote provided for each voting group entitled to vote separately on the
amendment is not less than a majority of all votes entitled to be cast on the
amendment by that voting group.

SPECIAL MEETINGS OF SHAREHOLDERS

The Company Bylaws provide that a special meeting of the shareholders may be
called by the President of the Company, the Company Board of Directors, the
holders of at least 50% of the shares outstanding and entitled to vote at such
meeting or such other persons as may be authorized by the Company Articles.
The MMI Bylaws provide that a special meeting of the shareholders may be
called by the President or by a majority of the Board of Directors and shall
be called by the President at the written request of shareholders owning not
less than one-tenth (1/10) of the entire capital stock of MMI issued and
outstanding and entitled to vote.

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CUMULATIVE VOTING

Holders of Company Common Stock have no right to vote cumulatively in the
election of directors. Holders of MMI Common Stock do have the right to vote
cumulatively.

NO PREEMPTIVE RIGHTS

No holder of any class of capital stock of the Company or MMI has a
preemptive right to subscribe to any or all additional issues of the stock of
the Company or MMI.

SHAREHOLDER ACTION BY WRITTEN CONSENT

Article 9.10 of the TBCA provides that shareholders may act without a
meeting only by the unanimous written consent of all shareholders, unless the
articles of incorporation otherwise provide. The Company Articles do not
otherwise provide. Under Section 23B.07.040 of the WBCA, shareholders may,
unless otherwise provided in the articles of incorporation (the MMI Articles
of Incorporation do not provide otherwise), act without a meeting by written
consent of holders of outstanding stock representing the number of shares
necessary to take such action at a meeting at which all shares entitled to
vote were present and voted.

NEWLY CREATED DIRECTORSHIPS

Under Article 2.34 of the TBCA and the Company Bylaws, newly created
directorships resulting from any increase in the number of directors may be
filled by the affirmative vote of a majority of the directors then in office
for a term of office continuing only until the next election of one or more
directors by the shareholders entitled to vote thereon, provided that the
Board of Directors may not fill more than two such directorships during the
period between any two successive annual meetings of shareholders.
Alternatively, such newly created directorships may be filled by election at
an annual or special meeting of the shareholders called for that purpose.

Section 23B.08.100 of the WBCA provides that unless the articles of
incorporation state otherwise, if a vacancy occurs on a board of directors,
including a vacancy resulting from an increase in the number of directors (i)
the shareholders may fill the vacancy; (ii) the board of directors may fill
the vacancy; or (iii) if the directors in office constitute fewer than a
quorum of the board, they may fill the vacancy by the affirmative vote of a
majority of all the directors in office. If the vacant office was held by a
director elected by holders of one or more authorized classes or series of
shares, only the holders of those classes or series of shares are entitled to
vote to fill the vacancy.

REMOVAL OF DIRECTORS

Under Article 2.32 of the TBCA, directors of a corporation are elected to
serve until the next annual meeting of shareholders, and until their
successors shall have been elected and qualified, and any director or the
entire board of directors may be removed in accordance with provisions of the
corporation's articles of incorporation or bylaws. The Company Bylaws provide
that directors may be removed only for cause by the holders of a majority of
the shares entitled to vote in the election of directors.

Under Section 23B.08.080 of the WBCA, any director or the entire board of
directors may be removed, with or without cause, by the holders of a majority
of the shares entitled to vote at an election of directors, unless the
articles of incorporation otherwise provide. If a director is elected by
holders of one or more authorized classes or series of shares, only the
holders of those classes or series of shares may participate in the vote to
remove the director. In the case of a corporation having cumulative voting,
such as MMI, if less than the entire board is to be removed, no director may
be removed without cause if the votes cast against such director's removal
would be sufficient to elect such director if then cumulatively voted at an
election of the entire board of directors.

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INSPECTION OF BOOKS AND RECORDS

The TBCA provides that a person who has been a shareholder of a corporation
for at least six months or is the holder of at least 5% of the outstanding
shares of a corporation, may for any proper purpose upon written demand,
inspect the books and records of the corporation and make extracts therefrom.

The WBCA provides that any record owner of shares of a corporation may, for
any proper purpose upon five days prior written demand, examine and copy,
during regular business hours, the books and records of the corporation.

LEGAL MATTERS

The legality of the issuance of the shares of the Company Common Stock to be
issued in connection with the Merger will be passed upon for the Company by
Bracewell & Patterson, L.L.P., Houston, Texas.

EXPERTS

The financial statements of Group Maintenance America Corp. (GroupMAC
Parent), Group Maintenance America Corp. and Subsidiaries (formerly Airtron,
Inc.), K&N Plumbing, Heating and Air Conditioning, Inc., A-ABC Appliance, Inc.
and A-1 Appliance & Air Conditioning, Inc., Arkansas Mechanical Services, Inc.
and Mechanical Services, Inc., Callahan Roach Products and Publications, Inc.,
Central Carolina Air Conditioning Company, Hallmark Air Conditioning, Inc. and
Subsidiary, Sibley Services, Incorporated, Southeast Mechanical Service, Inc.,
Willis Refrigeration, Air Conditioning & Heating, Inc., and Yale, Inc., to the
extent and for the periods indicated in their reports, have been included
herein and in the registration statement in reliance upon the reports of KPMG
Peat Marwick LLP, independent certified public accountants, appearing
elsewhere herein, and upon the authority of said firm as experts in accounting
and auditing.

The financial statements of Masters, Inc. as of December 31, 1995, December
31, 1996 and June 30, 1997, and for each of the three years in the period
ended December 31, 1996 and for the six month period ended June 30, 1997
included in this proxy statement/prospectus have been audited by Deloitte &
Touche LLP, independent auditors, as stated in their report appearing herein,
and have been so included in reliance upon the reports of such firm given upon
their authority as experts in accounting and auditing.

The financial statements and schedules of MMI included in this Proxy
Statement/Prospectus and elsewhere in the Registration Statement, to the
extent and for the periods indicated in their reports, have been audited by
Moss Adams LLP, independent public accountants, and are included herein in
reliance upon the authority of said firm as experts in accounting and auditing
in giving said reports.

OTHER MATTERS

MMI's Board does not intend to bring any matters before the Meetings other
than those specifically set forth in the Notice of Special Meeting and it does
not know of any matters to be brought before the MMI Special Meeting by
others. If any other matters properly come before the MMI Special Meeting, it
is the intention of the persons named in the accompanying proxies to vote such
proxies in accordance with the judgment of the MMI Board.

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AVAILABLE INFORMATION

The Company has filed with the Commission a Registration Statement (which
term encompasses any and all amendments thereto) under the Securities Act with
respect to the Common Stock offered hereby. This Proxy Statement/Prospectus,
which is filed as part of the Registration Statement, does not contain all the
information set forth in the Registration Statement and the exhibits and
schedules thereto, certain items of which were omitted in accordance with the
rules and regulations of the Commission. Statements made in this Proxy
Statement/Prospectus concerning the contents of any contract, agreement or
other document referred to are summaries of the terms of such contract,
agreement or other document and are not necessarily complete. With respect to
each such contract, agreement or other document filed as an exhibit to the
Registration Statement, reference is hereby made to the exhibit for a more
complete description of the matter involved, and each such statement shall be
deemed qualified in its entirety by such reference. For further information
with respect to the Company, reference is hereby made to the Registration
Statement and such exhibits and schedules filed as a part thereof, which may
be inspected, without charge, at the public reference facilities maintained by
the Commission at Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C.
20549, and at the following regional offices of the Commission: 7 World Trade
Center, Suite 1300, New York, New York 10048; and Citicorp Center, 500 West
Madison Street, Suite 1400, Chicago, Illinois 60661. Copies of all or any
portion of the Registration Statement may be obtained from the Public
Reference facilities of the Commission, upon payment of the prescribed fees.
The Registration Statement is also available on the Internet at the
Commission's World Wide Web site at http://www.sec.gov.

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INDEX TO FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
PAGE
----
<S> <C>
MACDONALD-MILLER INDUSTRIES, INC. UNAUDITED PRO FORMA CONSOLIDATED
FINANCIAL STATEMENTS
Introduction to Unaudited Pro Forma Consolidated Financial Statements.. F-4
Unaudited Pro Forma Consolidated Balance Sheet......................... F-5
Unaudited Pro Forma Consolidated Statement of Operations............... F-6
Notes to Unaudited Pro Forma Consolidated Financial Statements......... F-7
GROUP MAINTENANCE AMERICA CORP. UNAUDITED PRO FORMA COMBINED FINANCIAL
STATEMENTS
Introduction to Unaudited Pro Forma Combined Financial Statements...... F-8
Unaudited Pro Forma Combined Balance Sheet............................. F-10
Unaudited Pro Forma Combined Statements of Operations.................. F-12
Notes to Unaudited Pro Forma Combined Financial Statements............. F-18
HISTORICAL FINANCIAL STATEMENTS
GROUP MAINTENANCE AMERICA CORP. (GROUPMAC PARENT)
Report of Independent Public Accountants............................... F-23
Balance Sheets......................................................... F-24
Statements of Operations............................................... F-25
Statements of Shareholders' Equity..................................... F-26
Statements of Cash Flows............................................... F-27
Notes to Financial Statements.......................................... F-28
GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)
Report of Independent Public Accountants............................... F-33
Consolidated Balance Sheets............................................ F-34
Consolidated Statements of Operations.................................. F-35
Consolidated Statements of Shareholders' Equity........................ F-36
Consolidated Statements of Cash Flows.................................. F-37
Notes to Consolidated Financial Statements............................. F-38
MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES
Report of Independent Public Accountants............................... F-50
Consolidated Balance Sheets............................................ F-51
Consolidated Statements of Operations.................................. F-52
Consolidated Statements of Shareholders' Equity........................ F-53
Consolidated Statements of Cash Flows.................................. F-54
Notes to Consolidated Financial Statements............................. F-55
MASTERS, INC.
Report of Independent Public Accountants............................... F-65
Balance Sheets......................................................... F-66
Statements of Operations............................................... F-67
Statements of Shareholders' Equity..................................... F-68
Statements of Cash Flows............................................... F-69
Notes to Financial Statements.......................................... F-70
</TABLE>

F-1
<PAGE>

<TABLE>
<CAPTION>
PAGE
-----
<S> <C>
K&N PLUMBING, HEATING AND AIR CONDITIONING, INC.
Report of Independent Public Accountants................................ F-77
Balance Sheet........................................................... F-78
Statement of Operations................................................. F-79
Statement of Shareholders' Equity....................................... F-80
Statement of Cash Flows................................................. F-81
Notes to Financial Statements........................................... F-82
A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.
Report of Independent Public Accountants................................ F-87
Combined Balance Sheets................................................. F-88
Combined Statements of Operations....................................... F-89
Combined Statements of Shareholders' Equity............................. F-90
Combined Statements of Cash Flows....................................... F-91
Notes to Combined Financial Statements.................................. F-92
ARKANSAS MECHANICAL SERVICES, INC. AND MECHANICAL
SERVICES, INC.
Report of Independent Public Accountants................................ F-97
Combined Balance Sheets................................................. F-98
Combined Statements of Operations....................................... F-99
Combined Statements of Shareholders' Equity............................. F-100
Combined Statements of Cash Flows....................................... F-101
Notes to Combined Financial Statements.................................. F-102
CALLAHAN ROACH PRODUCTS AND PUBLICATIONS, INC.
Report of Independent Public Accountants................................ F-108
Balance Sheets.......................................................... F-109
Statements of Operations................................................ F-110
Statements of Shareholders' Equity...................................... F-111
Statements of Cash Flows................................................ F-112
Notes to Financial Statements........................................... F-113
CENTRAL CAROLINA AIR CONDITIONING COMPANY
Report of Independent Public Accountants................................ F-116
Balance Sheets.......................................................... F-117
Statements of Operations................................................ F-118
Statements of Shareholders' Equity...................................... F-119
Statements of Cash Flows................................................ F-120
Notes to Financial Statements........................................... F-121
HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY
Report of Independent Public Accountants................................ F-126
Consolidated Balance Sheets............................................. F-127
Consolidated Statements of Operations................................... F-128
Consolidated Statements of Shareholders' Equity......................... F-129
Consolidated Statements of Cash Flows................................... F-130
Notes to Consolidated Financial Statements.............................. F-131
</TABLE>

F-2
<PAGE>

<TABLE>
<CAPTION>
PAGE
-----
<S> <C>
SIBLEY SERVICES, INCORPORATED
Report of Independent Public Accountants................................ F-137
Balance Sheets.......................................................... F-138
Statements of Operations................................................ F-139
Statements of Shareholders' Equity...................................... F-140
Statements of Cash Flows................................................ F-141
Notes to Financial Statements........................................... F-142
SOUTHEAST MECHANICAL SERVICE, INC.
Report of Independent Public Accountants................................ F-148
Balance Sheets.......................................................... F-149
Statements of Operations................................................ F-150
Statements of Shareholders' Equity...................................... F-151
Statements of Cash Flows................................................ F-152
Notes to Financial Statements........................................... F-153
WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.
Report of Independent Public Accountants................................ F-157
Balance Sheets.......................................................... F-158
Statements of Operations................................................ F-159
Statements of Shareholders' Equity...................................... F-160
Statements of Cash Flows................................................ F-161
Notes to Financial Statements........................................... F-162
YALE INCORPORATED
Report of Independent Public Accountants................................ F-167
Balance Sheets.......................................................... F-168
Statements of Operations................................................ F-169
Statements of Shareholders' Equity...................................... F-170
Statements of Cash Flows................................................ F-171
Notes to Financial Statements........................................... F-172
</TABLE>

F-3
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC.

UNAUDITED PRO FORMA CONSOLIDATED

FINANCIAL STATEMENTS

On June 4, 1997, MacDonald-Miller Industries, Inc. ("MMI") signed a letter
of intent with Group Maintenance America Corp. ("GroupMAC" or the "Company"),
whereby GroupMAC would acquire MMI in a merger transaction for a combination
of cash and common shares of GroupMAC concurrent with the consummation of the
initial public offering of the common stock of GroupMAC, subject to certain
conditions, including the negotiation of definitive agreements and approval by
directors of both companies. Prior to the planned acquisition, MMI will
distribute the net assets of MacDonald-Miller Residential ("MMR") (a division
of MacDonald-Miller Company, Inc.) in a tax-free distribution followed by the
acquisition of MMR by certain shareholders of MMI.

The accompanying pro forma consolidated unaudited financial statement
schedules have been prepared on the basis that the distribution of the net
assets of MMR had been completed as of December 31, 1993. Effects of
adjustments related to the distribution have been accounted for as a reduction
in shareholder's equity.

Amounts due from affiliate in the accompanying pro forma ending balance
sheet represent the allocation of bank borrowings attributed to MMR and are
expected to be remitted to MMI at the completion of the planned acquisition as
separate financing of the division is established.

F-4
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC.

UNAUDITED PRO FORMA CONSOLIDATED BALANCE SHEET

JUNE 30, 1997

<TABLE>
<CAPTION>
MACDONALD- MACDONALD-
MILLER INDUSTRIES, MILLER PRO FORMA AS
INC. RESIDENTIAL PRO FORMA ADJ'S ADJUSTED
------------------ ----------- --------------- ------------
<S> <C> <C> <C> <C>
ASSETS
------
CURRENT ASSETS:
Cash and cash
equivalents........... $ -- $ -- $ -- $ --
Receivables, less
allowance for doubtful
accounts of $158,221,
$8,568 and $149,653,
respectively:
Trade................. 15,448,095 719,805 -- 14,728,290
Related parties and
employees............ 679,277 6,870 -- 672,407
Unconsolidated
affiliate............ -- (437,940) 49,940 388,000
Inventories............ 1,044,667 230,574 -- 814,093
Costs and estimated
earnings in excess in
excess of
billings on uncom-
pleted contracts...... 1,117,506 102,038 -- 1,015,468
Prepaid expenses....... 73,781 10,378 -- 63,403
Income taxes refund-
able.................. -- -- -- --
----------- --------- -------- -----------
Total current assets. 18,363,326 631,725 49,940 17,681,661
----------- --------- -------- -----------
PROPERTY AND EQUIPMENT,
net.................... 1,744,972 189,649 -- 1,555,323
----------- --------- -------- -----------
OTHER NONCURRENT ASSETS:
Real estate held for
investment............ 411,066 -- -- 411,066
Other assets........... 113,026 5,503 -- 107,523
Deferred income taxes.. 196,000 -- -- 196,000
----------- --------- -------- -----------
720,092 5,503 -- 714,589
----------- --------- -------- -----------
Total assets......... $20,828,390 $ 826,877 $ 49,940 $19,951,573
=========== ========= ======== ===========
LIABILITIES AND SHAREHOLDERS' EQUITY
------------------------------------
CURRENT LIABILITIES:
Current maturities of
long-term debt........ $ 96,000 $ -- $ -- $ 96,000
Accounts payable....... 5,472,131 230,250 -- 5,241,881
Notes payable:
Bank.................. 4,790,113 -- -- 4,790,113
Stockholders and
related parties...... 35,340 -- -- 35,340
Accrued expenses....... 2,602,335 185,587 -- 2,416,748
Income taxes payable... 396,001 -- -- 396,001
Billings in excess of
costs and estimated
earning on uncompleted
contracts............. 1,715,783 -- -- 1,715,783
----------- --------- -------- -----------
Total current
liabilities......... 15,107,703 415,837 -- 14,691,866
----------- --------- -------- -----------
LONG-TERM DEBT, net of
current maturities..... 708,285 -- -- 708,285
----------- --------- -------- -----------
DEFERRED COMPENSATION... 189,848 -- -- 189,848
----------- --------- -------- -----------
COMMITMENTS AND
CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock, no par
value; 150,000 shares
authorized............ 355,133 -- -- 355,133
Retained earnings...... 4,467,421 411,040 (49,940) 4,006,441
----------- --------- -------- -----------
Total shareholders'
equity.............. 4,822,554 411,040 (49,940) 4,361,574
----------- --------- -------- -----------
Total liabilities and
shareholders'
equity.............. $20,828,390 $ 826,877 $(49,940) $19,951,573
=========== ========= ======== ===========
</TABLE>

The accompanying notes are an integral part of these unaudited pro forma
consolidated financial statements.

F-5
<PAGE>

MACDONALD MILLER INDUSTRIES, INC.

UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
TWELVE MONTHS ENDED DECEMBER 31,
----------------------------------------------
1996
----------------------------------------------
MACDONALD-
MILLER MACDONALD- PRO PRO
INDUSTRIES, MILLER FORMA FORMA AS
INC. RESIDENTAL ADJ ADJUSTED
----------- ---------- -------- -----------
<S> <C> <C> <C> <C>
REVENUES.......... $71,597,840 $5,538,882 $ -- $66,058,958
COST OF SERVICES.. 61,573,569 5,200,636 -- 56,372,933
----------- ---------- -------- -----------
GROSS PROFIT.... 10,024,271 338,246 -- 9,686,025
----------- ---------- -------- -----------
SELLING, GENERAL
AND ADMINISTRATIVE
EXPENSES.......... 8,785,314 1,154,371 (908) 7,631,851
----------- ---------- -------- -----------
INCOME FROM
OPERATIONS...... 1,238,957 (816,125) 908 2,054,174
OTHER INCOME (EX-
PENSE)
Interest expense. (593,039) (73,370) 173 (519,842)
Interest income.. -- -- -- --
Other............ (4,200) (12,126) -- 7,926
----------- ---------- -------- -----------
(597,239) (85,496) 173 (511,916)
INCOME BEFORE
INCOME TAX PRO-
VISION.......... 641,718 (901,621) 1,081 1,542,258
INCOME TAX PROVI-
SION.............. 257,000 (342,600) 25,600 574,000
----------- ---------- -------- -----------
NET INCOME........ $ 384,718 $ (559,021) $(24,519) $ 968,258
=========== ========== ======== ===========
PRO FORMA NET
INCOME PER SHARE.. $ 8.26
SHARES USED IN
COMPUTING PRO
FORMA NET INCOME
PER SHARE......... 117,277
<CAPTION>
SIX MONTHS ENDED JUNE 30,
--------------------------------------------------------------------------------------------------------
1996 1997
------------------------------------------------- ------------------------------------------------------
MACDONALD-
MILLER MACDONALD- MACDONALD- MACDOANLD-
INDUSTRIES, MILLER PRO FORMA PRO FORMA AS MILLER MILLER PRO FORMA PRO FORMA AS
INC. RESIDENTIAL ADJ ADJUSTED INDUSTRIES, INC. RESIDENTIAL ADJ ADJUSTED
------------ ------------ --------- ------------- ---------------- ------------ ---------- -------------
<S> <C> <C> <C> <C> <C> <C> <C> <C>
REVENUES.......... $38,979,761 $2,597,456 $-- $36,382,305 $41,972,630 $3,136,968 $ -- $38,835,662
COST OF SERVICES.. 34,302,006 2,711,811 -- 31,590,195 36,087,411 2,636,387 -- 33,451,024
------------ ------------ --------- ------------- ---------------- ------------ ---------- -------------
GROSS PROFIT.... 4,677,755 (114,355) -- 4,792,110 5,885,219 500,581 -- 5,384,638
------------ ------------ --------- ------------- ---------------- ------------ ---------- -------------
SELLING, GENERAL
AND ADMINISTRATIVE
EXPENSES.......... 4,282,720 577,026 -- 3,705,694 4,279,274 465,052 26,400 3,787,822
------------ ------------ --------- ------------- ---------------- ------------ ---------- -------------
INCOME FROM
OPERATIONS...... 395,035 (691,381) -- 1,086,416 1,605,945 35,529 (26,400) 1,596,816
OTHER INCOME (EX-
PENSE)
Interest expense. (275,518) (31,383) -- (244,135) (258,159) (24,328) (19,450) (214,381)
Interest income.. -- -- -- -- -- -- -- --
Other............ 87,110 20,359 -- 66,751 185,180 17,971 -- 167,209
------------ ------------ --------- ------------- ---------------- ------------ ---------- -------------
(188,408) (11,024) -- (177,384) (72,979) (6,357) (19,450) (47,172)
INCOME BEFORE
INCOME TAX PRO-
VISION.......... 206,627 (702,405) -- 909,032 1,532,966 29,172 (45,850) 1,549,644
INCOME TAX PROVI-
SION.............. 92,859 (254,200) -- 347,059 569,001 -- -- 569,001
------------ ------------ --------- ------------- ---------------- ------------ ---------- -------------
NET INCOME........ $ 113,768 $ (448,205) $-- $ 561,973 $ 963,965 $ 29,172 $(45,850) $ 980,643
============ ============ ========= ============= ================ ============ ========== =============
PRO FORMA NET
INCOME PER SHARE.. $ 7.57
SHARES USED IN
COMPUTING PRO
FORMA NET INCOME
PER SHARE......... 129,583
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-6
<PAGE>

MACDONALD MILLER INDUSTRIES, INC.

NOTES TO UNAUDITED PRO FORMA

CONSOLIDATED FINANCIAL STATEMENTS

1. ADJUSTMENTS RELATED TO THE PRO FORMA BALANCE SHEET

The pro forma balance sheet reflects the effects of adjustments related to
the unconsolidated affiliate as a reduction in the note payable to MMI and an
increase in retained earnings.

2. ADJUSTMENTS RELATED TO THE PRO FORMA INCOME STATEMENT

The adjustments related to the pro forma income statement consist of
allocations from MMI to MMR related to ESOP expense, depreciation expense,
general liability insurance, labor & industry refund, rent allocation,
corporate overhead expense and interest expense.

F-7
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

UNAUDITED PRO FORMA COMBINED
FINANCIAL STATEMENTS

The following unaudited pro forma combined financial statements give effect
to the acquisitions by Group Maintenance America Corp. ("GroupMAC"), of 11
companies acquired to date ("the Pre-Offering Companies") and 13 additional
companies for which definitive agreements have been signed (the "Offering
Acquisition Companies" and together with the Pre-Offering Companies, the
"GroupMAC Companies") as follows:

<TABLE>
<CAPTION>
DATE
COMPANY ACQUIRED
------- -----------
<S> <C>
Airtron, Inc....................................................... 5/2/97
A-ABC Appliance, Inc. and A-1 Appliance & Air Conditioning, Inc.... 6/1/97
Hallmark Air Conditioning, Inc..................................... 6/1/97
K&N Plumbing, Heating and Air Conditioning, Inc.................... 6/1/97
Way Residential.................................................... 6/30/97
AA JARL, Inc. (d/b/a "Jarrell Plumbing")........................... 6/30/97
Charlie Crawford, Inc. (d/b/a "Charlie's Plumbing")................ 6/30/97
Costner Brothers, Inc.............................................. 6/30/97
Callahan Roach Products & Publications, Inc. & Callahan Roach &
Associates........................................................ 7/1/97
Sibley Services, Incorporated...................................... 7/1/97
United Service Alliance, L.C....................................... 7/31/97
All Service Electric, Inc.......................................... At offering
Arkansas Mechanical Services, Inc.................................. At offering
Central Carolina Air Conditioning Company.......................... At offering
Evans Services, Inc................................................ At offering
Linford Service Company............................................ At offering
MacDonald-Miller Industries, Inc................................... At offering
Masters, Inc....................................................... At offering
Mechanical Services, Inc........................................... At offering
Paul E. Smith Co., Inc............................................. At offering
Southeast Mechanical Service, Inc.................................. At offering
Van's Comfortemp Air Conditioning, Inc............................. At offering
Willis Refrigeration, Air Conditioning & Heating, Inc.............. At offering
Yale Incorporated.................................................. At offering
</TABLE>

All of the acquisitions have been or will be accounted for utilizing the
purchase method of accounting. The pending acquisitions, which are all
evidenced by signed definitive agreements, are expected to occur at or
immediately following the closing of the Company's initial public offering,
with Airtron, Inc. ("Airtron") as the acquirer for financial accounting
purposes. These unaudited pro forma combined financial statements are based on
the historical financial statements of the acquired companies and estimates
and assumptions set forth below and in the notes to the unaudited pro forma
combined financial statements.

The unaudited pro forma combined balance sheets combine the historical
consolidated balance sheet of the Company and the balance sheets of the
acquisitions completed subsequent to June 30, 1997 with the balance sheets of
the pending acquisitions, as if these acquisitions had occurred on June 30,
1997. The accompanying unaudited pro forma statements of operations of the
Company combine the historical statements of operations of GroupMAC and the
statements of operations of the completed and pending acquisitions as if such
acquisitions had occurred on January 1, 1996.

F-8
<PAGE>

GroupMAC has preliminarily analyzed the savings that it expects to realize
from reductions in salaries and certain benefits to the owners. To the extent
the owners of the GroupMAC Companies have agreed prospectively to reductions
in salary, bonuses and benefits, these reductions have been reflected in the
pro forma combined statements of operations. With respect to other potential
cost savings, GroupMAC cannot fully quantify these savings until completion of
the combination of the GroupMAC Companies. It is anticipated that these
savings will be partially offset by costs related to GroupMAC's new corporate
management and by the costs associated with being a public company. However,
because these savings and costs cannot be accurately quantified at this time,
they have not been included in the pro forma combined financial information of
GroupMAC.

The pro forma adjustments are based on preliminary estimates, available
information and certain assumptions that management deems appropriate and may
be revised as additional information becomes available. The pending
acquisitions are subject to certain working capital and long-term debt
adjustments, of which an estimate is reflected in the pro forma adjustments.
The pro forma combined financial data do not purport to represent what
GroupMAC's financial position or results of operations would actually have
been if such transactions had in fact occurred on those dates and are not
necessarily representative of GroupMAC's financial position or results of
operations for any future period. Since the pending and completed acquisitions
have not historically been under common control or management, historical pro
forma combined results may not be indicative of or comparable to future
performance. The unaudited pro forma combined financial statements should be
read in conjunction with other financial statements and notes thereto included
elsewhere in this prospectus. See "Risk Factors" included elsewhere herein.

F-9
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

UNAUDITED PRO FORMA COMBINED BALANCE SHEET

JUNE 30, 1997

(IN THOUSANDS)

<TABLE>
<CAPTION>
GROUPMAC AND MACDONALD- OTHER RESIDENTIAL OTHER COMMERCIAL PRO FORMA PRO FORMA
ASSETS SUBSIDIARIES MILLER MASTERS SERVICE COMPANIES SERVICE COMPANIES COMBINED ADJUSTMENTS COMBINED
- ------ ------------ ---------- ------- ----------------- ----------------- -------- ----------- ---------
<S> <C> <C> <C> <C> <C> <C> <C> <C>
CURRENT ASSETS:
Cash and cash
equivalents...... $ 5,875 $ -- $ 637 $ 1,792 $ 446 $ 8,750 $ 1,464 $ 10,214
Accounts receiv-
able--
Trade, net of al-
lowance.......... 14,940 14,728 6,270 2,921 7,576 46,435 -- 46,435
Other............ 418 388 343 18 4 1,171 -- 1,171
Due from related
parties.......... -- 673 246 215 74 1,208 (1,208) --
Inventories...... 4,935 814 622 1,060 1,327 8,758 -- 8,758
Costs and esti-
mated earnings in
excess of bill-
ings on uncom-
pleted contracts. 43 1,016 1,420 214 387 3,080 -- 3,080
Refundable income
taxes............ 577 -- -- -- -- 577 -- 577
Deferred tax as-
set.............. 1,607 -- -- 230 -- 1,837 -- 1,837
Prepaid expenses
and other current
assets........... 718 63 71 311 373 1,536 -- 1,536
-------- ------- ------- ------- ------- -------- -------- --------
Total current
assets.......... 29,113 17,682 9,609 6,761 10,187 73,352 256 73,608
PROPERTY AND
EQUIPMENT, net.... 4,721 1,555 610 2,266 2,148 11,300 (206) 11,094
GOODWILL, net..... 18,318 -- -- -- 591 18,909 56,761 75,670
DEFERRED TAX AS-
SETS.............. 10,120 196 -- -- -- 10,316 -- 10,316
OTHER NONCURRENT
ASSETS............ 2,670 519 674 1,383 9 5,255 (1,659) 3,596
-------- ------- ------- ------- ------- -------- -------- --------
Total assets.... $ 64,942 $19,952 $10,893 $10,410 $12,935 $119,132 $ 55,152 $174,284
======== ======= ======= ======= ======= ======== ======== ========
<CAPTION>
LIABILITIES AND SHAREHOLDERS'
EQUITY:
- -----------------------------
CURRENT
LIABILITIES:
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Accounts payable
and accrued ex-
penses........... $ 11,551 $ 7,659 $ 3,312 $ 1,915 $ 4,528 $ 28,965 $ 207 $ 29,172
Short-term debt,
including current
maturities....... 4,577 4,886 1,070 727 1,256 12,516 2,092 14,608
Billings in
excess of costs
and estimated
earnings on
uncompleted
contracts........ 1,781 1,716 851 39 317 4,704 -- 4,704
Liability for
warranty costs... 854 -- -- 55 -- 909 -- 909
Deferred service
revenue.......... 1,153 -- -- 1,209 332 2,694 -- 2,694
Income taxes
payable.......... 495 396 -- 345 -- 1,236 -- 1,236
Deferred tax
liabilities...... -- -- -- 26 32 58 1,506 1,564
Other current
liabilities...... 740 -- 395 27 -- 1,162 -- 1,162
Due to
shareholders/affiliates. 537 35 -- 41 748 1,361 29,557 30,918
-------- ------- ------- ------- ------- -------- -------- --------
Total current
liabilities..... 21,688 14,692 5,628 4,384 7,213 53,605 33,362 86,967
LONG-TERM DEBT,
net of current
maturities........ 26,434 708 765 739 817 29,463 1,903 31,366
LEASE OBLIGATIONS. 34 -- -- -- 14 48 -- 48
DEFERRED SERVICE
REVENUE........... 145 -- -- 204 -- 349 -- 349
DEFERRED TAX LIA-
BILITY............ -- -- -- 156 17 173 113 286
DEFERRED COMPENSA-
TION.............. -- 190 -- 372 -- 562 (562) --
DUE TO SHAREHOLD-
ERS............... 9,745 -- -- -- -- 9,745 -- 9,745
OTHER LONG-TERM
LIABILITIES....... 773 -- -- 11 -- 784 -- 784
REDEEMABLE PRE-
FERRED STOCK AND
RELATED WARRANTS.. 17,121 -- -- -- -- 17,121 2,150 19,271
SHAREHOLDERS' EQ-
UITY (DEFICIT)
Common stock..... 9 355 5 52 502 923 (911) 12
Additional paid-
in capital....... 23,687 -- -- 41 107 23,835 36,315 60,150
Retained earnings
(deficit)........ (34,694) 4,007 4,495 4,451 4,417 (17,324) (17,370) (34,694)
Treasury stock... -- -- -- -- (152) (152) 152 --
-------- ------- ------- ------- ------- -------- -------- --------
Total sharehold-
ers' equity
(deficit)....... (10,998) 4,362 4,500 4,544 4,874 7,282 18,186 25,468
-------- ------- ------- ------- ------- -------- -------- --------
Total liabili-
ties and share-
holders' equity
(deficit)....... $ 64,942 $19,952 $10,893 $10,410 $12,935 $119,132 $ 55,152 $174,284
======== ======= ======= ======= ======= ======== ======== ========
<CAPTION>
OFFERING PRO FORMA
ASSETS ADJUSTMENTS AS ADJUSTED
- ------ ----------- -----------
<S> <C> <C>
CURRENT ASSETS:
Cash and cash
equivalents...... $ (757) $ 9,457
Accounts receiv-
able--
Trade, net of al-
lowance.......... -- 46,435
Other............ -- 1,171
Due from related
parties.......... -- --
Inventories...... -- 8,758
Costs and esti-
mated earnings in
excess of bill-
ings on uncom-
pleted contracts. -- 3,080
Refundable income
taxes............ -- 577
Deferred tax as-
set.............. -- 1,837
Prepaid expenses
and other current
assets........... -- 1,536
----------- -----------
Total current
assets.......... (757) 72,851
PROPERTY AND
EQUIPMENT, net.... -- 11,094
GOODWILL, net..... -- 75,670
DEFERRED TAX AS-
SETS.............. -- 10,316
OTHER NONCURRENT
ASSETS............ (197) 3,399
----------- -----------
Total assets.... $ (954) $173,330
=========== ===========
<CAPTION>
LIABILITIES AND SHAREHOLDERS'
EQUITY:
- -----------------------------
CURRENT
LIABILITIES:
<S> <C> <C>
Accounts payable
and accrued ex-
penses........... $ -- $ 29,172
Short-term debt,
including current
maturities....... (12,501) 2,107
Billings in
excess of costs
and estimated
earnings on
uncompleted
contracts........ -- 4,704
Liability for
warranty costs... -- 909
Deferred service
revenue.......... -- 2,694
Income taxes
payable.......... -- 1,236
Deferred tax
liabilities...... -- 1,564
Other current
liabilities...... -- 1,162
Due to
shareholders/affiliates. (30,918) --
----------- -----------
Total current
liabilities..... (43,419) 43,548
LONG-TERM DEBT,
net of current
maturities........ (31,366) --
LEASE OBLIGATIONS. (48) --
DEFERRED SERVICE
REVENUE........... -- 349
DEFERRED TAX LIA-
BILITY............ -- 286
DEFERRED COMPENSA-
TION.............. -- --
DUE TO SHAREHOLD-
ERS............... -- 9,745
OTHER LONG-TERM
LIABILITIES....... -- 784
REDEEMABLE PRE-
FERRED STOCK AND
RELATED WARRANTS.. (19,271) --
SHAREHOLDERS' EQ-
UITY (DEFICIT)
Common stock..... 8 20
Additional paid-
in capital....... 93,142 153,292
Retained earnings
(deficit)........ -- (34,694)
Treasury stock... -- --
----------- -----------
Total sharehold-
ers' equity
(deficit)....... 93,150 118,618
----------- -----------
Total liabili-
ties and share-
holders' equity
(deficit)....... $ (954) $173,330
=========== ===========
</TABLE>

The accompanying notes are an integral part of these unaudited pro forma
combined financial statements.

F-10
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

UNAUDITED PRO FORMA COMBINED BALANCE SHEET

JUNE 30, 1997

(IN THOUSANDS)

<TABLE>
<CAPTION>
OTHER RESIDENTIAL SERVICE COMPANIES
----------------------------------------------------
CENTRAL OTHER TOTAL OTHER
ASSETS CAROLINA WILLIS CRPP COMPANIES RESIDENTIAL COMPANIES
------ -------- ------ ---- --------- ---------------------
<S> <C> <C> <C> <C> <C>
CURRENT ASSETS:
Cash and cash
equivalents....... $ 457 $ 788 $106 $ 441 $ 1,792
Accounts receiv-
able--
Trade, net of
allowance........ 868 1,391 -- 662 2,921
Other............ -- -- -- 18 18
Due from related
parties........... 175 -- -- 40 215
Inventories....... 246 194 47 573 1,060
Costs and esti-
mated earnings in
excess of bill-
ings on
uncompleted con-
tracts............ 168 -- -- 46 214
Refundable income
taxes............. -- -- -- -- --
Deferred tax as-
set............... -- 230 -- -- 230
Prepaid expenses
and other current
assets............ 220 10 -- 81 311
------ ------ ---- ------ -------
Total current
assets.......... 2,134 2,613 153 1,861 6,761
PROPERTY AND
EQUIPMENT, net.... 675 512 118 961 2,266
GOODWILL, net..... -- -- -- -- --
DEFERRED TAX AS-
SETS.............. -- -- -- -- --
OTHER NONCURRENT
ASSETS............ 39 360 -- 984 1,383
------ ------ ---- ------ -------
Total assets.... $2,848 $3,485 $271 $3,806 $10,410
====== ====== ==== ====== =======
<CAPTION>
LIABILITIES AND
SHAREHOLDERS'
EQUITY
---------------
<S> <C> <C> <C> <C> <C>
CURRENT LIABILI-
TIES:
Accounts payable
and accrued ex-
penses............ $ 508 $ 381 $ 90 $ 936 $ 1,915
Short-term debt,
including current
maturities........ 1 221 61 444 727
Billings in ex-
cess of costs and
estimated earn-
ings on
uncompleted con-
tracts............ 39 -- -- -- 39
Liability for
warranty costs.... -- -- -- 55 55
Deferred service
revenue........... 763 229 -- 217 1,209
Income taxes pay-
able.............. -- 284 14 47 345
Deferred tax lia-
bilities.......... -- -- -- 26 26
Other current li-
abilities......... -- -- -- 27 27
Due to related
parties........... -- -- -- 41 41
------ ------ ---- ------ -------
Total current
liabilities..... 1,311 1,115 165 1,793 4,384
LONG-TERM DEBT,
net of current ma-
turities.......... -- -- 18 721 739
LEASE OBLIGATIONS. -- -- -- -- --
DEFERRED SERVICE
REVENUE........... 204 -- -- -- 204
DEFERRED TAX LIA-
BILITY............ -- 147 9 -- 156
DEFERRED COMPENSA-
TION.............. 61 -- -- 311 372
DUE TO SHAREHOLD-
ERS............... -- -- -- -- --
OTHER LONG-TERM
LIABILITIES....... -- -- -- 11 11
REDEEMABLE PRE-
FERRED STOCK AND
RELATED WARRANTS.. -- -- -- -- --
SHAREHOLDERS' EQ-
UITY (DEFICIT)
Common stock...... 20 4 1 27 52
Additional paid-
in capital........ 23 -- -- 18 41
Retained earnings
(deficit)......... 1,229 2,219 78 925 4,451
Treasury stock.... -- -- -- -- --
------ ------ ---- ------ -------
Total sharehold-
ers' equity
(deficit)....... 1,272 2,223 79 970 4,544
------ ------ ---- ------ -------
Total liabili-
ties and share-
holders' equity
(deficit)....... $2,848 $3,485 $271 $3,806 $10,410
====== ====== ==== ====== =======
<CAPTION>
OTHER COMMERCIAL SERVICE COMPANIES
-------------------------------------------------------------------
ARKANSAS SOUTHEAST OTHER TOTAL OTHER
ASSETS YALE SIBLEY MECHANICAL MECHANICAL COMPANIES COMMERCIAL COMPANIES
------ ------ ------- ---------- ---------- --------- --------------------
<S> <C> <C> <C> <C> <C> <C>
CURRENT ASSETS:
Cash and cash
equivalents....... $ 94 $ 41 $ 20 $ 74 $ 217 $ 446
Accounts receiv-
able--
Trade, net of
allowance........ 1,554 635 1,338 936 3,113 7,576
Other............ -- -- -- -- 4 4
Due from related
parties........... -- 13 18 43 -- 74
Inventories....... 89 126 76 64 972 1,327
Costs and esti-
mated earnings in
excess of bill-
ings on
uncompleted con-
tracts............ 295 55 36 1 -- 387
Refundable income
taxes............. -- -- -- -- -- --
Deferred tax as-
set............... -- -- -- -- -- --
Prepaid expenses
and other current
assets............ 45 244 11 36 37 373
------ ------- ---------- ---------- --------- --------------------
Total current
assets.......... 2,077 1,114 1,499 1,154 4,343 10,187
PROPERTY AND
EQUIPMENT, net.... 694 87 633 430 304 2,148
GOODWILL, net..... -- -- 14 -- 577 591
DEFERRED TAX AS-
SETS.............. -- -- -- -- -- --
OTHER NONCURRENT
ASSETS............ -- -- 1 -- 8 9
------ ------- ---------- ---------- --------- --------------------
Total assets.... $2,771 $1,201 $2,147 $1,584 $5,232 $12,935
====== ======= ========== ========== ========= ====================
<CAPTION>
LIABILITIES AND
SHAREHOLDERS'
EQUITY
---------------
<S> <C> <C> <C> <C> <C> <C>
CURRENT LIABILI-
TIES:
Accounts payable
and accrued ex-
penses............ $ 983 $ 284 $ 795 $ 355 $2,111 $ 4,528
Short-term debt,
including current
maturities........ 245 307 500 135 69 1,256
Billings in ex-
cess of costs and
estimated earn-
ings on
uncompleted con-
tracts............ 19 73 100 125 -- 317
Liability for
warranty costs.... -- -- -- -- -- --
Deferred service
revenue........... -- -- -- -- 332 332
Income taxes pay-
able.............. -- -- -- -- -- --
Deferred tax lia-
bilities.......... -- 32 -- -- -- 32
Other current li-
abilities......... -- -- -- -- -- --
Due to related
parties........... -- -- 35 371 342 748
------ ------- ---------- ---------- --------- --------------------
Total current
liabilities..... 1,247 696 1,430 986 2,854 7,213
LONG-TERM DEBT,
net of current ma-
turities.......... 175 69 192 221 160 817
LEASE OBLIGATIONS. -- -- -- -- 14 14
DEFERRED SERVICE
REVENUE........... -- -- -- -- -- --
DEFERRED TAX LIA-
BILITY............ -- 17 -- -- -- 17
DEFERRED COMPENSA-
TION.............. -- -- -- -- -- --
DUE TO SHAREHOLD-
ERS............... -- -- -- -- -- --
OTHER LONG-TERM
LIABILITIES....... -- -- -- -- -- --
REDEEMABLE PRE-
FERRED STOCK AND
RELATED WARRANTS.. -- -- -- -- -- --
SHAREHOLDERS' EQ-
UITY (DEFICIT)
Common stock...... 1 21 26 -- 454 502
Additional paid-
in capital........ 101 -- -- 6 -- 107
Retained earnings
(deficit)......... 1,247 503 546 371 1,750 4,417
Treasury stock.... -- (105) (47) -- -- (152)
------ ------- ---------- ---------- --------- --------------------
Total sharehold-
ers' equity
(deficit)....... 1,349 419 525 377 2,204 4,874
------ ------- ---------- ---------- --------- --------------------
Total liabili-
ties and share-
holders' equity
(deficit)....... $2,771 $1,201 $2,147 $1,584 $5,232 $12,935
====== ======= ========== ========== ========= ====================
</TABLE>
The accompanying notes are an integral part of these unaudited pro forma
combined financial statements.

F-11
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

FOR THE YEAR ENDED DECEMBER 31, 1996

(IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
OTHER OTHER
RESIDENTIAL COMMERCIAL
GROUPMAC AND MACDONALD- SERVICE SERVICE GROUPMAC PRO FORMA PRO FORMA
SUBSIDIARIES MILLER MASTERS K&N COMPANIES COMPANIES PARENT ADJUSTMENTS AS ADJUSTED
------------ ---------- ------- ------- ----------- ---------- -------- ----------- -----------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
REVENUES.............. $81,880 $66,059 $39,826 $24,279 $48,964 $46,499 $ -- $ -- $307,507
COST OF SERVICES...... 58,506 56,373 35,854 20,705 30,628 33,845 -- -- 235,911
------- ------- ------- ------- ------- ------- ----- -------- --------
Gross profit......... 23,374 9,686 3,972 3,574 18,336 12,654 -- -- 71,596
SELLING, GENERAL AND
ADMINISTRATIVE
EXPENSES.............. 19,811 7,632 2,484 2,638 16,375 10,367 724 (11,078)(a) 48,953
GOODWILL AMORTIZATION. -- -- -- -- 131 -- -- 1,760 (b) 1,891
------- ------- ------- ------- ------- ------- ----- -------- --------
Income (loss) from
operations........... 3,563 2,054 1,488 936 1,830 2,287 (724) 9,318 20,752
OTHER INCOME
(EXPENSE):
Interest expense..... (82) (520) (135) (97) (295) (210) (1) 1,213 (c) (127)
Interest income...... 171 -- -- -- 86 22 2 -- 281
Other................ 256 8 -- (3) 231 (1) -- (194)(d) 297
------- ------- ------- ------- ------- ------- ----- -------- --------
INCOME (LOSS) BEFORE
INCOME TAX PROVISION.. 3,908 1,542 1,353 836 1,852 2,098 (723) 10,337 21,203
INCOME TAX PROVISION.. 1,572 574 -- 315 275 46 -- 6,455 (e) 9,237
------- ------- ------- ------- ------- ------- ----- -------- --------
NET INCOME (LOSS)..... $ 2,336 $ 968 $ 1,353 $ 521 $ 1,577 $ 2,052 $(723) $ 3,882 $ 11,966
======= ======= ======= ======= ======= ======= ===== ======== ========
PRO FORMA NET INCOME
PER SHARE............. $ .59
========
SHARES USED IN
COMPUTING PRO FORMA
NET INCOME PER SHARE.. (f) 20,159
========
</TABLE>

The accompanying notes are an integral part of these unaudited pro forma
combined financial statements.

F-12
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

FOR THE YEAR ENDED DECEMBER 31, 1996

(IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
OTHER RESIDENTIAL SERVICE COMPANIES
---------------------------------------------------------------
TOTAL OTHER
CENTRAL A-ABC/ OTHER RESIDENTIAL
CAROLINA A-1 WILLIS HALLMARK CRPP COMPANIES COMPANIES
-------- ------ ------ -------- ------ --------- -----------
<S> <C> <C> <C> <C> <C> <C> <C>
REVENUES......... $8,161 $8,546 $6,781 $6,516 $1,553 $17,407 $48,964
COST OF SERVICES. 5,182 5,447 5,033 3,461 311 11,194 30,628
------ ------ ------ ------ ------ ------- -------
Gross profit.... 2,979 3,099 1,748 3,055 1,242 6,213 18,336
SELLING, GENERAL
AND
ADMINISTRATIVE
EXPENSES......... 2,598 2,652 1,206 3,029 1,238 5,652 16,375
GOODWILL
AMORTIZATION..... -- 114 -- 17 -- -- 131
------ ------ ------ ------ ------ ------- -------
Income from op-
erations........ 381 333 542 9 4 561 1,830
OTHER INCOME
(EXPENSE):
Interest
expense......... (10) (95) (25) (31) (9) (125) (295)
Interest income. 30 11 8 16 -- 21 86
Other........... (40) 1 48 3 (7) 226 231
------ ------ ------ ------ ------ ------- -------
INCOME (LOSS)
BEFORE INCOME TAX
PROVISION........ 361 250 573 (3) (12) 683 1,852
INCOME TAX
PROVISION........ -- -- 238 18 -- 19 275
------ ------ ------ ------ ------ ------- -------
NET INCOME
(LOSS)........... $ 361 $ 250 $ 335 $ (21) $ (12) $ 664 $ 1,577
====== ====== ====== ====== ====== ======= =======
<CAPTION>
OTHER COMMERCIAL SERVICE COMPANIES
-----------------------------------------------------------
TOTAL
OTHER
ARKANSAS SOUTHEAST OTHER COMMERCIAL
YALE SIBLEY MECHANICAL MECHANICAL COMPANIES COMPANIES
-------- ------- ---------- ---------- --------- ----------
<S> <C> <C> <C> <C> <C> <C>
REVENUES......... $10,065 $6,962 $6,237 $5,282 $17,953 $46,499
COST OF SERVICES. 7,931 5,335 4,773 3,831 11,975 33,845
-------- ------- ---------- ---------- --------- ----------
Gross profit.... 2,134 1,627 1,464 1,451 5,978 12,654
SELLING, GENERAL
AND
ADMINISTRATIVE
EXPENSES......... 1,729 1,498 1,083 866 5,191 10,367
GOODWILL
AMORTIZATION..... -- -- -- -- -- --
-------- ------- ---------- ---------- --------- ----------
Income from op-
erations........ 405 129 381 585 787 2,287
OTHER INCOME
(EXPENSE):
Interest
expense......... (30) (31) (51) (55) (43) (210)
Interest income. -- -- -- -- 22 22
Other........... (50) 16 30 (15) 18 (1)
-------- ------- ---------- ---------- --------- ----------
INCOME (LOSS)
BEFORE INCOME TAX
PROVISION........ 325 114 360 515 784 2,098
INCOME TAX
PROVISION........ -- 42 -- -- 4 46
-------- ------- ---------- ---------- --------- ----------
NET INCOME
(LOSS)........... $ 325 $ 72 $ 360 $ 515 $ 780 $ 2,052
======== ======= ========== ========== ========= ==========
</TABLE>

The accompanying notes are an integral part of these unaudited pro forma
combined financial statements.

F-13
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

FOR THE SIX MONTHS ENDED JUNE 30, 1996

(IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
OTHER OTHER
RESIDENTIAL COMMERCIAL
MACDONALD- SERVICE SERVICE PRO FORMA PRO FORMA
AIRTRON MILLER MASTERS K&N COMPANIES COMPANIES GROUPMAC ADJUSTMENTS AS ADJUSTED
------- ---------- ------- ------- ----------- ---------- -------- ----------- -----------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
REVENUES................ $37,127 $36,382 $18,279 $11,893 $23,255 $24,460 $-- $ -- $151,396
COST OF SERVICES........ 26,918 31,590 16,639 10,433 14,762 17,575 -- -- 117,917
------- ------- ------- ------- ------- ------- --- ------- --------
Gross profit........... 10,209 4,792 1,640 1,460 8,493 6,885 -- -- 33,479
SELLING, GENERAL AND
ADMINISTRATIVE EXPENSES. 9,470 3,706 1,009 1,349 8,021 4,676 -- (4,163)(a) 24,068
GOODWILL AMORTIZATION... -- -- -- -- 61 27 -- 858 (b) 946
------- ------- ------- ------- ------- ------- --- ------- --------
Income from operations. 739 1,086 631 111 411 2,182 -- 3,305 8,465
OTHER INCOME (EXPENSE):
Interest expense....... (37) (244) (67) (38) (149) (102) -- 575 (c) (62)
Interest income........ 42 -- 8 1 38 12 -- -- 101
Other.................. 200 67 -- 4 (18) 10 -- (23)(d) 240
------- ------- ------- ------- ------- ------- --- ------- --------
INCOME BEFORE INCOME TAX
PROVISION .............. 944 909 572 78 282 2,102 -- 3,857 8,744
INCOME TAX PROVISION.... 368 347 -- 150 (38) 283 -- 2,766 (e) 3,876
------- ------- ------- ------- ------- ------- --- ------- --------
NET INCOME (LOSS)....... $ 576 $ 562 $ 572 $ (72) $ 320 $ 1,819 $-- $ 1,091 $ 4,868
======= ======= ======= ======= ======= ======= === ======= ========
PRO FORMA NET INCOME PER
SHARE................... $ .24
========
SHARES USED IN COMPUTING
PRO FORMA NET INCOME PER
SHARE................... (f) 20,159
========
</TABLE>

The accompanying notes are an integral part of these unaudited pro forma
combined financial statements.

F-14
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

FOR THE SIX MONTHS ENDED JUNE 30, 1996

(IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
OTHER RESIDENTIAL SERVICE COMPANIES
-------------------------------------------------------------
TOTAL OTHER
CENTRAL A-ABC/ OTHER RESIDENTIAL
CAROLINA A-1 WILLIS HALLMARK CRPP COMPANIES COMPANIES
-------- ------ ------ -------- ---- --------- -----------
<S> <C> <C> <C> <C> <C> <C> <C>
REVENUES......... $3,672 $4,314 $3,059 $3,016 $816 $8,378 $23,255
COST OF SERVICES. 2,141 2,802 2,669 1,390 174 5,586 14,762
------ ------ ------ ------ ---- ------ -------
Gross profit.... 1,531 1,512 390 1,626 642 2,792 8,493
SELLING, GENERAL
AND
ADMINISTRATIVE
EXPENSES......... 1,420 1,251 625 1,573 548 2,604 8,021
GOODWILL
AMORTIZATION..... -- 58 -- 3 -- -- 61
------ ------ ------ ------ ---- ------ -------
Income (loss)
from operations. 111 203 (235) 50 94 188 411
OTHER INCOME
(EXPENSE):
Interest
expense......... (5) (61) (11) (11) (6) (55) (149)
Interest income. 7 1 9 9 -- 12 38
Other........... 10 17 9 (42) 2 (14) (18)
------ ------ ------ ------ ---- ------ -------
INCOME (LOSS)
BEFORE INCOME TAX
PROVISION........ 123 160 (228) 6 90 131 282
INCOME TAX
PROVISION........ -- -- (95) 34 26 (3) (38)
------ ------ ------ ------ ---- ------ -------
NET INCOME
(LOSS)........... $ 123 $ 160 $ (133) $ (28) $ 64 $ 134 $ 320
====== ====== ====== ====== ==== ====== =======
<CAPTION>
OTHER COMMERCIAL SERVICE COMPANIES
----------------------------------------------------------
TOTAL
OTHER
ARKANSAS SOUTHEAST OTHER COMMERCIAL
YALE SIBLEY MECHANICAL MECHANICAL COMPANIES COMPANIES
------- ------- ---------- ---------- --------- ----------
<S> <C> <C> <C> <C> <C> <C>
REVENUES......... $5,343 $4,210 $3,460 $2,847 $8,600 $24,460
COST OF SERVICES. 4,186 3,236 2,663 2,007 5,483 17,575
------- ------- ---------- ---------- --------- ----------
Gross profit.... 1,157 974 797 840 3,117 6,885
SELLING, GENERAL
AND
ADMINISTRATIVE
EXPENSES......... 873 711 525 388 2,179 4,676
GOODWILL
AMORTIZATION..... -- -- -- -- 27 27
------- ------- ---------- ---------- --------- ----------
Income (loss)
from operations. 284 263 272 452 911 2,182
OTHER INCOME
(EXPENSE):
Interest
expense......... (16) (17) (23) (28) (18) (102)
Interest income. -- 1 -- -- 11 12
Other........... (22) 15 17 (3) 3 10
------- ------- ---------- ---------- --------- ----------
INCOME (LOSS)
BEFORE INCOME TAX
PROVISION........ 246 262 266 421 907 2,102
INCOME TAX
PROVISION........ -- 198 -- -- 85 283
------- ------- ---------- ---------- --------- ----------
NET INCOME
(LOSS)........... $ 246 $ 64 $ 266 $ 421 $ 822 $ 1,819
======= ======= ========== ========== ========= ==========
</TABLE>

The accompanying notes are an integral part of these unaudited pro forma
combined financial statements.

F-15
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

FOR THE SIX MONTHS ENDED JUNE 30, 1997

(IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
OTHER OTHER
RESIDENTIAL COMMERCIAL
GROUPMAC AND MACDONALD- SERVICE SERVICE GROUPMAC PRO FORMA PRO FORMA
SUBSIDIARIES MILLER MASTERS K&N COMPANIES COMPANIES PARENT ADJUSTMENTS AS ADJUSTED
------------ ---------- ------- ------- ----------- ---------- -------- ----------- -----------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
REVENUES.............. $42,844 $38,836 $19,318 $10,061 $23,012 $23,870 $ -- $ -- $157,941
COST OF SERVICES...... 30,920 33,451 17,457 8,670 13,684 17,177 -- -- 121,359
------- ------- ------- ------- ------- ------- ------- -------- --------
Gross profit......... 11,924 5,385 1,861 1,391 9,328 6,693 -- -- 36,582
SELLING, GENERAL AND
ADMINISTRATIVE
EXPENSES.............. 18,025 3,788 1,197 1,376 7,820 5,171 1,783 (12,182)(a) 26,978
GOODWILL AMORTIZATION. 31 -- -- -- 55 27 -- 833 (b) 946
------- ------- ------- ------- ------- ------- ------- -------- --------
Income (loss) from
operations........... (6,132) 1,597 664 15 1,453 1,495 (1,783) 11,349 8,658
OTHER INCOME
(EXPENSE):
Interest expense..... (395) (214) (76) (40) (128) (142) (2) 934 (c) (63)
Interest income...... 153 -- 11 1 59 16 4 -- 244
Other................ 228 167 -- (9) 138 35 -- (51)(d) 508
------- ------- ------- ------- ------- ------- ------- -------- --------
INCOME (LOSS) BEFORE
INCOME TAX PROVISION.. (6,146) 1,550 599 (33) 1,522 1,404 (1,781) 12,232 9,347
INCOME TAX PROVISION.. 349 569 -- (55) 228 24 -- 3,002 (e) 4,117
------- ------- ------- ------- ------- ------- ------- -------- --------
NET INCOME (LOSS)..... $(6,495) $ 981 $ 599 $ 22 $ 1,294 $ 1,380 $(1,781) $ 9,230 $ 5,230
======= ======= ======= ======= ======= ======= ======= ======== ========
PRO FORMA NET INCOME
PER SHARE............. $ .26
========
SHARES USED IN
COMPUTING PRO FORMA
NET INCOME PER SHARE.. (f) 20,159
========
</TABLE>

The accompanying notes are an integral part of these unaudited pro forma
combined financial statements.

F-16
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

FOR THE SIX MONTHS ENDED JUNE 30, 1997

(IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)

<TABLE>
<CAPTION>
OTHER RESIDENTIAL SERVICE COMPANIES
-------------------------------------------------------------
TOTAL OTHER
CENTRAL A-ABC/ OTHER RESIDENTIAL
CAROLINA A-1 WILLIS HALLMARK CRPP COMPANIES COMPANIES
-------- ------ ------ -------- ---- --------- -----------
<S> <C> <C> <C> <C> <C> <C> <C>
REVENUES......... $4,170 $3,419 $3,471 $2,168 $844 $8,940 $23,012
COST OF SERVICES. 2,208 2,227 2,413 1,005 184 5,647 13,684
------ ------ ------ ------ ---- ------ -------
Gross profit.... 1,962 1,192 1,058 1,163 660 3,293 9,328
SELLING, GENERAL
AND
ADMINISTRATIVE
EXPENSES......... 1,485 949 511 1,455 532 2,888 7,820
GOODWILL
AMORTIZATION..... -- 48 -- 7 -- -- 55
------ ------ ------ ------ ---- ------ -------
Income (loss)
from operations. 477 195 547 (299) 128 405 1,453
OTHER INCOME
(EXPENSE):
Interest
expense......... (2) (34) (10) (11) (8) (63) (128)
Interest income. 27 4 18 4 -- 6 59
Other........... 10 (8) 13 63 (1) 61 138
------ ------ ------ ------ ---- ------ -------
INCOME (LOSS)
BEFORE INCOME
TAX PROVISION.... 512 157 568 (243) 119 409 1,522
INCOME TAX
PROVISION........ -- -- 225 (21) 22 2 228
------ ------ ------ ------ ---- ------ -------
NET INCOME
(LOSS)........... $ 512 $ 157 $ 343 $ (222) $ 97 $ 407 $ 1,294
====== ====== ====== ====== ==== ====== =======
<CAPTION>
OTHER COMMERCIAL SERVICE COMPANIES
----------------------------------------------------------
TOTAL
OTHER
ARKANSAS SOUTHEAST OTHER COMMERCIAL
YALE SIBLEY MECHANICAL MECHANICAL COMPANIES COMPANIES
------- ------- ---------- ---------- --------- ----------
<S> <C> <C> <C> <C> <C> <C>
REVENUES......... $5,174 $2,259 $4,029 $2,358 $10,050 $23,870
COST OF SERVICES. 3,791 1,679 3,169 1,725 6,813 17,177
------- ------- ---------- ---------- --------- ----------
Gross profit.... 1,383 580 860 633 3,237 6,693
SELLING, GENERAL
AND
ADMINISTRATIVE
EXPENSES......... 1,052 627 583 409 2,500 5,171
GOODWILL
AMORTIZATION..... -- -- -- -- 27 27
------- ------- ---------- ---------- --------- ----------
Income (loss)
from operations. 331 (47) 277 224 710 1,495
OTHER INCOME
(EXPENSE):
Interest
expense......... (19) (10) (32) (43) (38) (142)
Interest income. -- -- -- -- 16 16
Other........... (9) -- 2 -- 42 35
------- ------- ---------- ---------- --------- ----------
INCOME (LOSS)
BEFORE INCOME
TAX PROVISION.... 303 (57) 247 181 730 1,404
INCOME TAX
PROVISION........ -- (4) -- -- 28 24
------- ------- ---------- ---------- --------- ----------
NET INCOME
(LOSS)........... $ 303 $ (53) $ 247 $ 181 $ 702 $ 1,380
======= ======= ========== ========== ========= ==========
</TABLE>

The accompanying notes are an integral part of these unaudited pro forma
combined financial statements.

F-17
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO UNAUDITED PRO FORMA

COMBINED FINANCIAL STATEMENTS

1. BACKGROUND:

Group Maintenance America Corp. ("GroupMAC") was founded in 1996 to create
the leading nationwide provider of heating, ventilation and air conditioning
("HVAC"), plumbing and electrical services to residential and commercial
customers. GroupMAC has acquired 11 companies to date (the "Pre-Offering
Companies") and has definitive agreements to acquire an additional 13
companies (the "Offering Acquisition Companies") concurrently with this
Offering.

The unaudited pro forma combined statements of operations for the year ended
December 31, 1996 utilize the fiscal years of the companies, all of which
approximate GroupMAC's fiscal year end. For the six months ended June 30, 1996
and 1997, the respective companies' actual financial statements for the six
month periods ended June 30, 1996 and 1997 are utilized. The respective
results of operations for the Pre-Offering Companies from January 1, 1997 to
the dates of the acquisitions were combined with GroupMAC and the Offering
Acquisition Companies' actual results of operations for the six months ended
June 30, 1997 to determine the pro forma results of operations for the six
months ended June 30, 1997.

2. COMPLETED AND PENDING ACQUISITIONS:

The acquisitions of the Pre-Offering Companies were financed by borrowings
under a credit agreement dated May 2, 1997 (the "Credit Agreement"). The
Credit Agreement provides secured facilities consisting of a) an 18-month
revolving credit facility providing up to $3 million in revolving loans (the
"Revolving Credit Facility"), b) a six-year term loan of $20 million to help
fund the acquisition of Airtron (the "Airtron Term Loan"), and c) a term loan
facility available until October 31, 1998, providing for up to $12 million in
term loans having a final maturity six years after the date of the Credit
Agreement (the "Acquisition Credit Facility"). The Credit Agreement is more
fully described in Note 7 to the GroupMAC and Subsidiaries Consolidated
Financial Statements contained herein.

The results of operations of the completed transactions are included in the
actual results of operations of the Company from the date of acquisition and
the historical balance sheet at June 30, 1997 includes the acquisitions
completed as of that date. In addition, the Company acquired three of the Pre-
Offering Companies in July 1997 and has signed definitive agreements to
purchase the outstanding capital stock of the Offering Acquisition Companies.
The completion of these pending transactions are subject to various
conditions. All of the completed and pending acquisitions are accounted for as
purchases. The cash portion of the pending acquisitions is assumed to be
provided by proceeds from the Offering.

The following table sets forth the consideration paid or to be paid in (a)
cash, (b) shares of non-convertible, non-voting Preferred Stock to the
shareholders of the Pre-Offering Companies and (c) shares of Common Stock to
the shareholders of the Pre-Offering and Offering Acquisition Companies. The
Preferred Stock is redeemable at any time after the initial issuance, in whole
or in part, at the option of the Company, at an amount equal to the
liquidation value of $1.00 per share plus any accrued but unpaid dividends. In
the event that an initial public offering ("IPO") has not occurred by June 30,
1999, cumulative dividends accrue commencing July 1, 1997 at an annual rate of
$.08 per whole share. Redemption of all outstanding Preferred Stock is
mandatory upon an IPO.

For purposes of computing the estimated purchase price for accounting
purposes, the value of the Preferred Stock is based on the liquidation value
of $1.00 per share and the value of the Common Stock is determined using an
estimated weighted average fair value of approximately $11.00 per share, which
represents a discount rate of approximately 21% from the anticipated initial
public offering price of $14.00 due primarily to restrictions on the sale and
transferability of both the privately issued shares and shares to be issued
simultaneous with the

F-18
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS--(CONTINUED)
IPO. The restrictions are created by the limitations on future sales caused by
existing securities laws, and an additional contractual restriction imposed on
the shares issued in connection with the acquisition of the GroupMAC
Companies. This contractual provision prohibits the shareholders from selling,
transferring or otherwise disposing of any shares for one year following the
date of acquisition of such shares and limiting dispositions for one
additional year to no more than 36% of their holdings. The total estimated
purchase price of $91.0 million for the Pre-Offering and Offering Acquisition
Companies (excluding Airtron, the accounting acquirer) is comprised of (a)
cash of $40.7 million, (b) Preferred Stock of $4.4 million and (c) Common
Stock of $45.9 million, based on the estimated fair values per share discussed
in this paragraph.

The estimated purchase price and related allocations of the excess purchase
price are based upon preliminary estimates and are subject to certain purchase
price adjustments at and following closing. Based upon management's
preliminary analysis, it is anticipated that the historical carrying value of
the assets and liabilities of the acquired companies (representing $15.3
million) will approximate fair value. This results in an allocation to
goodwill of approximately $75.7 million. Management has not identified any
other material tangible or identifiable intangible assets to which a portion
of the purchase price could reasonably be allocated. The total consideration
specified below has been reduced by distributions totaling $3.5 million
representing substantially all of the previously taxed undistributed earnings
of such acquired companies from the acquired companies that are S
corporations. The total consideration specified below does not reflect $2.1
million of other distributions of real estate and non operating assets offset
by related liabilities of $1.6 million. However, these amounts are reflected
in the pro forma adjustments as further described in Note 3.
<TABLE>
<CAPTION>
SHARES
SHARES OF OF
PREFERRED COMMON TOTAL
CASH STOCK(1) STOCK CONSIDERATION
------- --------- ------ -------------
<S> <C> <C> <C> <C>
PRE-OFFERING COMPANIES
PRE-JUNE 30, 1997 ACQUISITIONS:
Airtron................................ $20,849 14,873 4,652 $58,192
A-ABC/A-1.............................. 1,886 -- 359 5,659
Charlie's.............................. 1,503 -- 157 3,154
Costner................................ 501 100 66 1,289
Hallmark............................... 2,081 580 106 3,770
Jarrell................................ 150 -- 13 283
K&N.................................... 1,568 1,568 403 7,369
Way Residential (asset purchase)....... 16 -- 6 84
------- ------ ----- -------
28,554 17,121 5,762 79,800
------- ------ ----- -------
REMAINING PRE-OFFERING ACQUISITIONS:
Callahan Roach......................... 2,450 1,050 192 5,517
Sibley................................. 1,202 665 62 2,518
USA (asset purchase)................... 436 436 50 1,395
------- ------ ----- -------
4,088 2,151 304 9,430
------- ------ ----- -------
TOTAL PRE-OFFERING ACQUISITIONS...... 32,642 19,272 6,066 89,230
------- ------ ----- -------
OFFERING ACQUISITION COMPANIES
All Service............................ 2,312 -- 202 4,371
Arkansas Mechanical.................... 2,121 -- 151 3,408
Central Carolina....................... 3,638 -- 281 6,342
Evans ................................. 1,167 -- 102 2,309
Linford ............................... 651 -- 126 1,698
MacDonald-Miller....................... 6,002 -- 643 13,204
Masters................................ 6,605 -- 491 11,461
Mechanical............................. 109 -- 8 196
Paul E. Smith.......................... -- -- 217 2,205
Southeast Mechanical................... 2,149 -- 154 3,706
</TABLE>

F-19
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS--(CONTINUED)
<TABLE>
<CAPTION>
SHARES
SHARES OF OF
PREFERRED COMMON TOTAL
CASH STOCK(1) STOCK CONSIDERATION
------- --------- ------ -------------
<S> <C> <C> <C> <C>
Van's................................. 1,559 -- 113 2,825
Willis................................ 2,257 -- 242 4,965
Yale.................................. 2,215 -- 158 3,250
------- ------ ----- --------
30,785 -- 2,888 59,940
------- ------ ----- --------
Sub S Corp Distributions................ (1,856) -- (119) --
------- ------ ----- --------
Totals.............................. $61,571 19,272 8,835 $149,170
======= ====== ===== ========
</TABLE>
- --------
(1) The Preferred Stock is valued at $1.00 per share.

3. UNAUDITED PRO FORMA COMBINED BALANCE SHEET ADJUSTMENTS

a) Records the S Corporation Distributions of $3.5 million of which $1.4
million is expected to be paid using cash on hand of the applicable company
and $2.1 million is expected to be satisfied with a note to the selling
shareholders. Also records the deferred income tax liabilities associated with
converting all acquired companies taxed under Subchapter S of the Internal
Revenue Code (the Code) to corporations taxed under Subchapter C of the Code.

b) Records the final proceeds expected to be received from the Stock
Subscription Agreement dated October 24, 1996, representing the purchase of
668,000 shares by an individual at $3.08 per share.

c) Records the settlement of all shareholder receivables and payables with
cash at closing.

d) Records the elimination of all assets and liabilities of the acquired
companies that are specifically excluded as part of the purchase transaction.

e) Records the proceeds from the final borrowings under the $12 million term
loan facility of the Credit Agreement to fund the acquisitions of three Pre-
Offering Companies that closed subsequent to June 30, 1997.

f) Records the elimination of the historical equity accounts of the three
Pre-Offering Companies discussed in Note 3e and the 13 Offering Acquisition
Companies that will close concurrently with this Offering.

g) Records the purchase of the three Pre-Offering Companies discussed in
Note 3e and the 13 Offering Acquisition Companies that will close concurrently
with this Offering, including the cash, preferred stock and common stock
consideration due to these companies. In connection with the acquisitions of
certain of the GroupMAC Companies, the Company has agreed to make contingent
payments, if earned, to the former owners over periods up to two years based
on formulas in their respective acquisition agreements. These payments will be
made through a combination of cash, shares of Common Stock and warrants to
purchase Common Stock. Amounts earned under the terms of the agreements will
be recorded as additional goodwill and amortized over the remaining
amortization period.

h) Records the proceeds from the issuance of 7,500,000 shares of GroupMAC
Common Stock, net of estimated offering costs of $11,850,000. Offering costs
primarily consist of underwriting discounts and commissions, accounting fees,
legal fees and printing expenses.

i) Records the repayment of the Revolving Credit Facility, the Airtron Term
Loan and the Acquisition Line of Credit with proceeds from the Offering.

j) Records the remaining estimated cash due to the Pre-Offering Companies
and the cash portion to be paid to the Offering Acquisition Companies in
connection with the acquisition of such companies.

k) Records the retirement of GroupMAC preferred stock.

l) Records the retirement of debt assumed in connection with the acquisition
of the GroupMAC Companies.

F-20
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS--(CONTINUED)

The following tables summarize unaudited pro forma combined balance sheet
adjustments:

<TABLE>
<CAPTION>
PRO FORMA
(A) (B) (C) (D) (E) (F) (G) ADJUSTMENTS
------- ------- ------- ------- ------- -------- -------- -----------
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Cash and cash
equivalents............ $(1,423) $ 2,056 $ 383 $ 184 $ 2,900 $ (2,636) $ 1,464
Due from related
parties................ (1,208) (1,208)
Property and equipment,
net.................... (206) (206)
Goodwill................ 1,619 107 $(14,750) 69,785 56,761
Other noncurrent assets. (1,659) (1,659)
Accounts payable and
accrued expenses....... (207) (207)
Short-term debt,
including current
maturities............. (2,107) 15 (2,092)
Deferred tax
liabilities, current... (1,506) (1,506)
Due to
shareholder/affiliates. 825 (30,382) (29,557)
Long-term debt, net of
current maturities..... 997 (2,900) (1,903)
Deferred tax
liabilities, long-term. (113) (113)
Deferred compensation... 562 562
Preferred stock......... (2,150) (2,150)
Common stock............ (2) 915 (2) 911
Additional paid-in
capital................ (2,054) 147 (34,408) (36,315)
Retained earnings
(deficit).............. 3,530 13,840 17,370
Treasury stock.......... (152) (152)
------- ------- ------- ------- ------- -------- -------- --------
Total................. $ -- $ -- $ -- $ -- $ -- $ -- $ -- $ --
======= ======= ======= ======= ======= ======== ======== ========
</TABLE>

<TABLE>
<CAPTION>
OFFERING
(H) (I) (J) (K) (L) ADJUSTMENTS
-------- -------- -------- -------- -------- -----------
<S> <C> <C> <C> <C> <C> <C>
Cash and cash
equivalents............ $ 93,347 $(32,500) $(30,918) $(19,271) $(11,415) $ (757)
Other noncurrent assets. (197) (197)
Short-term debt,
including current
maturities............. 3,833 8,668 12,501
Due to
shareholder/affiliates. 30,918 30,918
Long-term debt, net of
current maturities..... 28,667 2,699 31,366
Lease Obligations....... 48 48
Preferred stock......... 19,271 19,271
Common stock............ (8) (8)
Additional paid-in
capital................ (96,433) (93,142)
Retained earnings
(deficit).............. --
-------- -------- -------- -------- -------- --------
Total................. $ -- $ -- $ -- $ -- $ -- $ --
======== ======== ======== ======== ======== ========
</TABLE>

F-21
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS--(CONTINUED)

4. UNAUDITED PRO FORMA COMBINED STATEMENTS OF OPERATIONS ADJUSTMENTS:

a) Reflects the prospective reduction in salaries, bonuses and benefits to
the owners of the GroupMAC Companies to which they have agreed. These
reductions in salaries, bonuses and benefits are in accordance with the terms
of the employment agreements. Such employment agreements are primarily for
three years, contain restrictions related to competition and provide severance
for termination of employment in certain circumstances. The salaries, bonuses,
benefits and other compensation items recorded in the individual financial
statements of each of the acquired companies amounted to $15.1 million, $6.2
million and $7.2 million for the twelve month period ended at or around
December 31, 1996 and the six month periods ended June 30, 1996 and 1997,
respectively. The contractually agreed upon compensation and benefits for
these same companies, on a going forward basis, amount to $4.0 million, $2.0
million and $2.0 million for the twelve month period ended at or around
December 31, 1996 and the six month periods ended June 30, 1996 and 1997,
respectively. The differences between these amounts for the periods noted
herein equate to $11.1 million, $4.2 million and $5.2 million, respectively,
and are reflected as pro forma adjustments.

Also reflects the reduction in compensation expense related to the non-
recurring, non-cash compensation charge of $7.0 million recorded by the
Company in the second quarter of 1997 related to the reverse acquisition of
GroupMAC Parent.

b) Reflects the amortization of goodwill to be recorded as a result of the
Acquisitions over a 40-year estimated life.

c) Reflects the elimination of historical interest expense related to the
Credit Agreement and the assumed debt of the GroupMAC Companies resulting from
the payoff of such debt with the proceeds of the Offering. Offsetting this
reduction is interest expense related to the notes issued to fund the S
Corporation Distributions discussed in Note 3a.

d) Reflects the elimination of income and expenses related to a management
benefit plan in effect at one of the GroupMAC Companies. This plan will be
liquidated in connection with the acquisition of the company.

e) Reflects the incremental provision for federal and state income taxes
relating to the compensation differential and other pro forma adjustments
discussed in this Note 4 as well as income taxes on S Corporation earnings.

f) The number of shares estimated to be outstanding on completion of the
Offering include the following:

<TABLE>
<S> <C>
Shares issued in Initial Public Offering............................. 7,500,000
Shares issued under Subscription Agreement dated October 24, 1996.... 2,600,000
Shares issued to Pre-Offering Companies.............................. 6,066,085
Shares issued to Offering Acquisition Companies...................... 2,768,804
Shares issued to Founding Management and Directors................... 1,026,817
Incremental effect of options and warrants on shares outstanding..... 196,957
----------
Shares estimated to be outstanding................................... 20,158,663
==========
</TABLE>

F-22
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
Group Maintenance America Corp.

We have audited the accompanying balance sheets of Group Maintenance America
Corp. (the Company) as of December 31, 1996 and April 30, 1997, and the
related statements of operations, shareholders' equity (deficit), and cash
flows for the periods from October 21, 1996 (inception) to December 31, 1996
and the four months ended April 30, 1997. These financial statements are the
responsibility of the Company's management. Our responsibility is to express
an opinion on these financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audits to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Group Maintenance America
Corp. as of December 31, 1996 and April 30, 1997 and the results of its
operations and its cash flows for the periods from October 21, 1996
(inception) to December 31, 1996 and the four months ended April 30, 1997, in
conformity with generally accepted accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
July 11, 1997

F-23
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

BALANCE SHEETS

<TABLE>
<CAPTION>
DECEMBER 31, APRIL 30,
1996 1997
------------ -----------
ASSETS
<S> <C> <C>
CURRENT ASSETS:
Cash and cash equivalents.......................... $ 228,036 $ 516,838
Due from employee.................................. 1,200 6,759
Prepaid expenses................................... 2,341 --
---------- -----------
Total current assets............................. 231,577 523,597
PROPERTY AND EQUIPMENT, net.......................... 100,996 120,694
OTHER NONCURRENT ASSETS.............................. 19,473 1,094,708
---------- -----------
Total assets..................................... $ 352,046 $ 1,738,999
========== ===========
<CAPTION>
LIABILITIES AND SHAREHOLDERS' EQUITY (DEFICIT)
<S> <C> <C>
CURRENT LIABILITIES:
Accounts payable................................... $ 137,377 $ 527,869
Accrued expenses................................... 6,118 1,478,898
---------- -----------
Total current liabilities........................ 143,495 2,006,767
LONG-TERM DEBT....................................... 75,000 75,000
OTHER LONG-TERM LIABILITIES.......................... -- 73,424
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY (DEFICIT):
Preferred stock, $.001 par value; 50,000,000 shares
authorized; none issued or outstanding............ -- --
Common stock, $.001 par value; 100,000,000 shares
authorized; 1,211,345 and 1,611,345 shares issued,
respectively...................................... 1,211 1,611
Additional paid-in capital......................... 8,238,857 8,238,457
Retained earnings.................................. (722,517) (2,503,260)
Subscriptions receivable........................... (7,384,000) (6,153,000)
---------- -----------
Total shareholders' equity (deficit)............. 133,551 (416,192)
---------- -----------
Total liabilities and shareholders' equity
(deficit)....................................... $ 352,046 $ 1,738,999
========== ===========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-24
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
INCEPTION
(OCTOBER 21,
1996) FOUR MONTHS
THROUGH ENDED
DECEMBER 31, APRIL 30,
1996 1997
------------ -----------
<S> <C> <C>
REVENUES............................................. -- --
COST OF SERVICES..................................... -- --
--------- -----------
Gross profit....................................... -- --
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES......... 724,006 1,783,409
--------- -----------
Loss from operations............................. (724,006) (1,783,409)
OTHER INCOME (EXPENSE):
Interest expense................................... (1,118) (2,000)
Interest income.................................... 2,607 4,666
--------- -----------
Loss before income tax provision................. (722,517) (1,780,743)
INCOME TAX PROVISION................................. -- --
--------- -----------
NET LOSS............................................. $(722,517) $(1,780,743)
========= ===========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-25
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT)

<TABLE>
<CAPTION>
COMMON STOCK
---------------- ADDITIONAL SHAREHOLDERS'
NUMBER OF PAID-IN RETAINED SUBSCRIPTIONS EQUITY
SHARES AMOUNT CAPITAL EARNINGS RECEIVABLE (DEFICIT)
--------- ------ ---------- ----------- ------------- -------------
<S> <C> <C> <C> <C> <C> <C>
BALANCE, October 21,
1996 -- $ -- $ -- $ -- $ -- $ --
Net loss.............. -- -- -- (722,517) -- (722,517)
Issuance of
subscription
agreement............ -- -- 8,000,000 -- (8,000,000) --
Issuance of common
stock................ 791,345 791 32,807 -- -- 33,598
Shares issued under
subscription
agreement............ 200,000 200 (200) -- 616,000 616,000
Compensation expense
related to issuance
of management shares. 220,000 220 206,250 -- -- 206,470
--------- ------ ---------- ----------- ----------- -----------
BALANCE, December 31,
1996................... 1,211,345 1,211 8,238,857 (722,517) (7,384,000) 133,551
Net loss.............. -- -- -- (1,780,743) -- (1,780,743)
Shares issued under
subscription
agreement............ 400,000 400 (400) -- 1,231,000 1,231,000
--------- ------ ---------- ----------- ----------- -----------
BALANCE, April 30, 1997. 1,611,345 $1,611 $8,238,457 $(2,503,260) $(6,153,000) $ (416,192)
========= ====== ========== =========== =========== ===========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-26
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
INCEPTION
(OCTOBER 21,
1996) FOUR MONTHS
THROUGH ENDED
DECEMBER 31, APRIL 30,
1996 1997
------------ -----------
<S> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss............................................ $(722,517) $(1,780,743)
Adjustments to reconcile net loss to net cash used
in operating activities:
Depreciation and amortization..................... 3,343 12,877
Noncash compensation charge....................... 206,250 --
Changes in operating assets and liabilities:
(Increase) decrease in--
Prepaid expenses and other assets............... (3,541) (3,218)
Other noncurrent assets......................... -- (1,567)
Increase (decrease) in--
Accounts payable................................ 137,377 390,492
Accrued expenses................................ 6,118 979,562
--------- -----------
Net cash used in operating activities.......... (372,970) (402,597)
--------- -----------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment................. (104,339) (32,575)
--------- -----------
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock.............. 649,818 1,231,000
Proceeds from borrowings............................ 75,000 --
Deferred offering costs............................. (19,473) (439,205)
Deferred financing costs............................ -- (67,821)
--------- -----------
Net cash provided by financing activities...... 705,345 723,974
--------- -----------
INCREASE IN CASH AND CASH EQUIVALENTS................ 228,036 288,802
CASH AND CASH EQUIVALENTS, beginning of period....... -- 228,036
--------- -----------
CASH AND CASH EQUIVALENTS, end of period............. $ 228,036 $ 516,838
========= ===========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-27
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

Group Maintenance America Corp. (the Company or GroupMAC Parent) was
incorporated in October 1996 and, therefore, the financial statements reflect
the period since the Company's inception through December 31, 1996 and the
four months ended April 30, 1997. The Company's primary business is to build a
national company providing heating, ventilation and air conditioning (HVAC),
plumbing and electrical services.

Effective April 30, 1997, GroupMAC Parent entered into an Agreement and Plan
of Exchange (the Agreement) with Airtron, Inc. (Airtron), in which $20,366,951
in cash, 14,873,133 shares of GroupMAC Parent preferred stock and 4,652,140
shares of GroupMAC Parent common stock were issued to shareholders of Airtron
in exchange for 100 percent of the then outstanding shares of Airtron. In
connection with this merger the combined company is referred to as GroupMAC
and Subsidiaries. The Agreement closed on May 2, 1997 with the cash portion
funded by the Company's available credit facility and a capital contribution
from a shareholder pursuant to a stock subscription agreement (see note 6).
For accounting purposes, the transaction was accounted for as a reverse
acquisition, as if Airtron acquired GroupMAC Parent, as the former
shareholders of Airtron now own a majority of GroupMAC Parent's common stock.
Concurrent with this transaction, the resulting combined entity will be named
Group Maintenance America Corp. and Subsidiaries. The Company is included in
the consolidated financial statements of GroupMAC and Subsidiaries, presented
elsewhere herein, for periods subsequent to the effective date of the
acquisition.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Use of Estimates

The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid debt instruments with original maturities of three months or
less to be cash equivalents. There were no cash payments for interest or
income taxes in 1996 or in the four months ended April 30, 1997.

Property and Equipment

Property and equipment are stated at cost. Depreciation is computed using
the straight-line method over the estimated useful lives of the assets.

Expenditures for repairs and maintenance are charged to expense when
incurred. Expenditures of major renewals and betterments, which extend the
useful lives of existing equipment, are capitalized and depreciated. Upon
retirement or disposition of property or equipment, the cost and related
accumulated depreciation are removed from the accounts and any resulting gain
or loss is recognized in the statements of operations.

Income Taxes

The Company follows the liability method of accounting for income taxes in
accordance with Statement of Financial Accounting Standards No. 109. Under
this method deferred income taxes are recorded based upon differences between
the financial reporting and tax bases of assets and liabilities and are
measured using the enacted tax rates and laws that will be in effect when the
underlying assets or liabilities are received or settled.

F-28
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

The Company has recorded a full valuation allowance against all deferred tax
assets due to the uncertainty of ultimate realizability. Accordingly, no
income tax benefit has been recorded for the losses incurred.

3. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Other noncurrent assets consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31, APRIL 30,
1996 1997
------------ ----------
<S> <C> <C>
Deferred offering costs......................... $ 13,648 $ 452,853
Deferred financing costs........................ -- 634,463
Other noncurrent assets......................... 5,825 7,392
-------- ----------
$ 19,473 $1,094,708
======== ==========
</TABLE>

Accrued expenses consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31, APRIL 30,
1996 1997
------------ ----------
<S> <C> <C>
Accrued compensation............................ $ -- $ 767,476
Accrued financing costs......................... -- 566,642
Other accrued expenses.......................... 6,118 144,780
------- ----------
$ 6,118 $1,478,898
======= ==========
</TABLE>

4. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and
equipment are as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL DECEMBER 31, APRIL 30,
LIVES 1996 1997
---------- ------------ ---------
<S> <C> <C> <C>
Office equipment, furniture and fixtures..... 3--7 years $ 104,339 $136,358
Less accumulated depreciation................ (3,343) (15,664)
--------- --------
$ 100,996 $120,694
========= ========
</TABLE>

5. LONG-TERM DEBT

CREDIT AGREEMENT

In May 1997, the Company entered into a credit agreement (the Credit
Agreement) with a group of banks providing for secured facilities consisting
of an 18-month revolving credit line of $3 million, a six-year term loan of
$20 million used in connection with the acquisition of Airtron (see note 1)
and a term loan facility, available until October 31, 1998, providing for up
to $12 million in term loans having a final maturity six years after the date
of the Credit Agreement, to be used in connection with future acquisitions.
Loans under the revolving credit facility are limited to a borrowing base
consisting of 70% of eligible accounts receivable. Interest on outstanding
borrowings is payable in quarterly installments beginning August 31, 1997. A
commitment fee of .25% is payable on the unused portion of the revolving
credit line.

F-29
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

The Credit Agreement contains covenants which, among other matters, restrict
or limit the ability of the Company to pay dividends, incur indebtedness, make
capital expenditures and repurchase capital stock. The Company must also
maintain a minimum fixed charge coverage ratio (as defined) and certain other
ratios, among other restrictions.

As of June 30, 1997, available borrowing capacity under the Credit Agreement
was $5.4 million.

LONG-TERM DEBT

On October 24, 1996, the Company executed a $75,000 subordinated note with a
Texas limited liability company. The note bears interest at eight percent (8%)
and is payable upon the earlier of (i) the closing of the Company's first
public offering of its common stock or (ii) two years from the date of the
note. The note is subordinate to all indebtedness of the Company to the banks
and is guaranteed by certain officers of the Company.

6. SHAREHOLDERS' EQUITY (DEFICIT)

COMMON STOCK

The Company is authorized to issue 100 million shares of common stock, $.001
par value. There were 1,211,345 and 1,611,345 shares of common stock issued
and outstanding at December 31, 1996 and April 30, 1997, respectively. In
connection with the sale of certain shares of common stock to management, a
nonrecurring, noncash compensation charge of $206,250 was recorded in 1996 to
reflect the difference between the amount paid for the shares and the
estimated fair value of the shares on the date of sale.

On October 24, 1996, the Company entered into a stock subscription agreement
with an individual allowing for the purchase of up to 2.6 million shares of
common stock at a purchase price of $3.08 per share. Under this agreement, 0.2
million shares were purchased in October 1996, 0.2 million in January 1997 and
0.2 million in April 1997 and additional shares are required to be purchased
upon written notice from the Company, but in no event later than October 24,
1998. Subsequent to April 30, 1997, an additional 1.658 million shares have
been purchased under the Subscription Agreement.

PREFERRED STOCK

The Company is authorized to issue up to 50 million shares of preferred
stock, par value $.001 per share, in one or more series. As of December 31,
1996 and April 30, 1997, none were outstanding.

F-30
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

OPTIONS

Under an option agreement dated October 24, 1996, the Company is authorized
to grant stock options with respect to 388,800 shares of the Company's common
stock to directors and senior management.

The following is a summary of stock option activity and number of shares
reserved for outstanding options.

<TABLE>
<CAPTION>
OPTION NUMBER
PRICE PER OF
SHARE SHARES
--------- -------
<S> <C> <C>
Granted................................................ $3.08 291,600
-------
Balance at December 31, 1996........................... 291,600
Granted................................................ $3.08 69,200
-------
Balance at April 30, 1997.............................. 360,800
=======
</TABLE>

At April 30, 1997, options representing 28,000 shares were available to be
granted under the option agreement.

The Company has adopted the disclosure-only provisions of the Statement of
Financial Accounting Standards (SFAS) No. 123, Accounting for Stock-Based
Compensation. Accordingly, no compensation cost has been recognized for the
option agreement as all options have an exercise price equal to or greater
than the fair value of the underlying stock at date of grant. Had compensation
cost for the Company's stock option plan been determined consistent with the
provisions of SFAS No. 123, net loss would have been increased by the
following pro forma amounts:

<TABLE>
<CAPTION>
INCEPTION
(OCTOBER 21,
1996) FOUR MONTHS
THROUGH ENDED
DECEMBER 31, APRIL 30,
1996 1997
------------ -----------
<S> <C> <C>
Net loss:
As reported......................................... $(722,517) $(1,780,743)
Pro forma........................................... $(745,602) $(1,837,870)
</TABLE>

The pro forma compensation cost may not be representative of that to be
expected in future years because options vest over several years and
additional awards may be made each year.

The fair value of each option grant is estimated on the date of grant using
the Black-Scholes option-pricing model with the following weighted average
assumptions used by the plan for fiscal 1996 and for the four months ending
April 30, 1997: no dividend yield; expected volatility of 0%; risk-free
interest rate of 6.26%; and expected lives of ten years. The weighted average
fair value per share of the options granted during fiscal 1996 and in the four
months ending April 30, 1997 is estimated to be $1.425.

7. INCOME TAXES

There is no Federal income tax provision as losses were incurred and a
valuation allowance has been established against future benefits deriving from
the carryforward of these losses.

F-31
<PAGE>

GROUP MAINTENANCE AMERICA CORP.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

8. COMMITMENTS AND CONTINGENCIES

The Company has entered into various operating lease agreements, primarily
for office space, furniture and service equipment. Minimum annual rental
payments under non-cancelable operating leases as of June 30, 1997, were
approximately as follows:

<TABLE>
<CAPTION>
FOR THE YEAR ENDING APRIL 30,
-----------------------------
<S> <C>
1997......................................... $46,000
1998......................................... 600
1999......................................... 300
=======
</TABLE>

Rental expense under operating leases was $9,032 for the period ended
December 31, 1996 and $49,194 for the four months ending April 30, 1997.

9. EVENT SUBSEQUENT TO INDEPENDENT AUDITORS' REPORT--STOCK SPLIT

On August 16, 1997, the Company's Board of Directors declared a 1-for-2.5
reverse stock split of the Company's common stock. All share data included in
the consolidated financial statements have been restated to reflect the stock
split.

F-32
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
Group Maintenance America Corp. and Subsidiaries (formerly Airtron, Inc.):

We have audited the accompanying consolidated balance sheets of Group
Maintenance America Corp. and Subsidiaries (formerly Airtron, Inc.) (the
Company) as of February 29, 1996, February 28, 1997 and June 30, 1997 and the
related consolidated statements of operations, shareholders' equity (deficit)
and cash flows for the years ended February 28, 1995, February 29, 1996 and
February 28, 1997, and the four months ended June 30, 1997. These consolidated
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these consolidated financial
statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.

In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Group
Maintenance America Corp. and Subsidiaries (formerly Airtron, Inc.) as of
February 29, 1996, February 28, 1997 and June 30, 1997 and the results of its
operations and its cash flows for the years ended February 28, 1995, February
29, 1996 and February 28, 1997, and the four months ended June 30, 1997, in
conformity with generally accepted accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
August 1, 1997

F-33
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

CONSOLIDATED BALANCE SHEETS

<TABLE>
<CAPTION>
FEBRUARY FEBRUARY JUNE 30,
29, 1996 28, 1997 1997
----------- ----------- ------------
ASSETS
<S> <C> <C> <C>
CURRENT ASSETS:
Cash and cash equivalents.............. $ 1,773,643 $ 4,339,406 $ 5,875,027
Accounts receivable, net of allowance
for doubtful accounts of $568,327,
$479,905 and $528,769, respectively... 7,409,168 7,811,108 14,939,516
Inventories............................ 3,686,094 3,354,054 4,934,852
Costs and estimated earnings in excess
of billings on uncompleted contracts.. 36,123 13,229 43,274
Prepaid expenses and other current
assets................................ 351,783 359,427 1,136,436
Deferred tax assets.................... 1,338,000 764,500 1,607,450
Refundable income taxes................ -- 3,235,500 576,467
----------- ----------- ------------
Total current assets................. 14,594,811 19,877,224 29,113,022
PROPERTY AND EQUIPMENT, net.............. 1,387,456 1,289,242 4,721,461
GOODWILL, net of accumulated amortization
of $30,795.............................. -- -- 18,317,831
DEFERRED TAX ASSET....................... 4,957,700 3,195,100 10,120,000
OTHER NONCURRENT ASSETS.................. 7,342,260 2,791,491 2,669,975
----------- ----------- ------------
Total assets......................... $28,282,227 $27,153,057 $ 64,942,289
=========== =========== ============
<CAPTION>
LIABILITIES AND SHAREHOLDERS' EQUITY (DEFICIT)
<S> <C> <C> <C>
CURRENT LIABILITIES:
Short-term borrowings and current
maturities of long-term debt.......... $ -- $ 148,994 $ 4,577,200
Accounts payable....................... 2,958,771 2,882,012 7,089,459
Accrued expenses....................... 5,231,529 7,765,355 5,315,951
Due to related parties................. -- -- 537,421
Billings in excess of costs and
estimated earnings on uncompleted
contracts............................. 1,554,948 1,469,002 1,780,467
Deferred service contract revenue...... 732,655 738,559 1,153,186
Income taxes payable................... 832,023 536,498 494,479
Other current liabilities.............. -- -- 740,000
----------- ----------- ------------
Total current liabilities............ 11,309,926 13,540,420 21,688,163
LONG-TERM DEBT, net of current
maturities.............................. -- 1,140,933 26,467,994
COMPENSATION AND BENEFITS PAYABLE........ 9,909,809 5,831,263 --
DUE TO SHAREHOLDERS...................... -- -- 9,744,500
OTHER LONG-TERM LIABILITIES.............. 689,100 650,000 918,477
COMMITMENTS AND CONTINGENCIES
REDEEMABLE PREFERRED STOCK AND RELATED
WARRANTS................................ -- -- 17,121,133
SHAREHOLDERS' EQUITY (DEFICIT):
Common stock, $.001 par value;
100,000,000 shares authorized;
5,692,261, 4,652,140 and 8,707,998
shares issued and outstanding,
respectively.......................... 5,692 4,652 8,708
Additional paid-in capital............. 2,701,116 2,646,093 25,740,895
Retained earnings (deficit)............ 3,666,584 3,339,696 (34,693,811)
Subscriptions receivable............... -- -- (2,053,770)
----------- ----------- ------------
Total shareholders' equity (deficit). 6,373,392 5,990,441 (10,997,978)
----------- ----------- ------------
Total liabilities and shareholders'
equity (deficit).................... $28,282,227 $27,153,057 $ 64,942,289
=========== =========== ============
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-34
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
FOUR MONTHS ENDED JUNE
YEAR ENDED YEAR ENDED YEAR ENDED 30,
FEBRUARY FEBRUARY FEBRUARY ------------------------
28, 1995 29, 1996 28, 1997 1996 1997
----------- ----------- ----------- ----------- -----------
(UNAUDITED)
<S> <C> <C> <C> <C> <C>
REVENUES................ $72,225,889 $73,764,643 $81,879,819 $25,956,840 $31,085,514
COST OF SERVICES........ 50,459,914 52,673,935 58,505,888 18,925,670 22,686,136
----------- ----------- ----------- ----------- -----------
Gross profit.......... 21,765,975 21,090,708 23,373,931 7,031,170 8,399,378
SELLING, GENERAL AND
ADMINISTRATIVE
EXPENSES............... 17,882,164 17,614,854 19,811,136 5,461,278 6,189,127
COMPENSATION EXPENSE
FROM REVERSE
ACQUISITION............ -- -- -- -- 6,978,300
WARRANT COMPENSATION.... 2,400,000 -- -- -- --
----------- ----------- ----------- ----------- -----------
Income (loss) from
operations........... 1,483,811 3,475,854 3,562,795 1,569,892 (4,768,049)
OTHER INCOME (EXPENSE):
Interest expense...... -- -- (82,211) (37,768) (352,666)
Interest income....... 75,835 67,744 170,918 20,100 93,212
Other................. 140,078 246,219 256,249 23,535 2,821
----------- ----------- ----------- ----------- -----------
Income (loss) before
income tax
provision.......... 1,699,724 3,789,817 3,907,751 1,575,759 (5,024,682)
INCOME TAX PROVISION.... 910,664 1,650,956 1,571,680 633,614 800,000
----------- ----------- ----------- ----------- -----------
NET INCOME (LOSS)....... $ 789,060 $ 2,138,861 $ 2,336,071 $ 942,145 $(5,824,682)
=========== =========== =========== =========== ===========
WEIGHTED AVERAGE SHARES
OUTSTANDING............ 8,008,122 6,190,337 5,172,201 5,172,201 8,875,295
=========== =========== =========== =========== ===========
NET INCOME (LOSS) PER
SHARE.................. $ 0.10 $ 0.35 $ 0.45 $ 0.18 $ (0.66)
=========== =========== =========== =========== ===========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-35
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT)

<TABLE>
<CAPTION>
COMMON STOCK ADDITIONAL TOTAL
-------------------- PAID-IN RETAINED TREASURY SUBSCRIPTIONS SHAREHOLDERS'
SHARES AMOUNT CAPITAL EARNINGS STOCK RECEIVABLE EQUITY (DEFICIT)
---------- -------- ----------- ------------ ----------- ------------- ----------------
<S> <C> <C> <C> <C> <C> <C> <C>
BALANCE, February 28,
1994................... 502,767 $502,767 $ -- $ 7,305,936 $(5,633,300) -- $ 2,175,403
Adjustment to convert
number and par value
of Airtron shares to
shares of GroupMAC
Parent ............... 8,825,065 (493,439) 493,439 -- -- -- --
---------- -------- ----------- ------------ ----------- ----------- ------------
RESTATED BALANCE,
February 28, 1994...... 9,327,832 9,328 493,439 7,305,936 (5,633,300) -- 2,175,403
Purchases of stock..... -- -- -- -- (1,534,896) -- (1,534,896)
Cancellation of
treasury stock........ (2,639,420) (2,640) (139,626) (4,618,714) 4,760,980 -- --
Contributions of
benefit trust......... -- -- -- -- 2,125,866 -- 2,125,866
Compensation on
warrants.............. -- -- 2,400,000 -- -- -- 2,400,000
Net income............. -- -- -- 789,060 -- -- 789,060
---------- -------- ----------- ------------ ----------- ----------- ------------
BALANCE, February 28,
1995................... 6,688,412 6,688 2,753,813 3,476,282 (281,350) -- 5,955,433
Purchases of stock..... -- -- -- -- (2,657,565) -- (2,657,565)
Cancellation of
treasury stock........ (996,151) (996) (52,697) (1,948,559) 2,002,252 -- --
Contributions to
benefit trust......... -- -- -- -- 936,663 -- 936,663
Net income............. -- -- -- 2,138,861 -- -- 2,138,861
---------- -------- ----------- ------------ ----------- ----------- ------------
BALANCE, February 29,
1996................... 5,692,261 5,692 2,701,116 3,666,584 -- -- 6,373,392
Purchases of stock..... -- -- -- -- (2,112,474) -- (2,112,474)
Repurchase of warrants. -- -- -- (600,000) -- -- (600,000)
Cancellation of
treasury stock........ (1,040,121) (1,040) (55,023) (2,056,411) 2,112,474 -- --
Distributions to
shareholders.......... -- -- -- (6,548) -- -- (6,548)
Net income............. -- -- -- 2,336,071 -- -- 2,336,071
---------- -------- ----------- ------------ ----------- ----------- ------------
BALANCE, February 28,
1997................... 4,652,140 4,652 2,646,093 3,339,696 -- -- 5,990,441
Purchase of Acquired
Companies............. 2,713,858 2,714 23,065,369 -- -- (6,153,000) 16,915,083
Preferred Stock issued
to Airtron
shareholders in
reverse acquisition... -- -- -- (14,873,133) -- -- (14,873,133)
Distribution to Airtron
shareholders in
reverse acquisition... -- -- -- (17,335,692) -- -- (17,335,692)
Shares issued under
subscription
agreement............. 1,332,000 1,332 (1,332) -- -- 4,099,230 4,099,230
Exercise of options.... 10,000 10 30,765 -- -- -- 30,775
Net loss............... -- -- -- (5,824,682) -- -- (5,824,682)
---------- -------- ----------- ------------ ----------- ----------- ------------
BALANCE, June 30, 1997.. 8,707,998 $ 8,708 $25,740,895 $(34,693,811) $ -- $(2,053,770) $(10,997,978)
========== ======== =========== ============ =========== =========== ============
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-36
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

CONSOLIDATED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
FOUR MONTHS ENDED
YEAR ENDED YEAR ENDED YEAR ENDED JUNE 30,
FEBRUARY 28, FEBRUARY 29, FEBRUARY 28, -------------------------
1995 1996 1997 1996 1997
------------ ------------ ------------ ----------- ------------
(UNAUDITED)
<S> <C> <C> <C> <C> <C>
CASH FLOWS FROM
OPERATING ACTIVITIES:
Net income (loss)...... $ 789,060 $ 2,138,861 $ 2,336,071 $ 942,145 $ (5,824,682)
Adjustments to
reconcile net income
(loss) to net cash
provided by (used in)
operating activities:
Depreciation and
amortization.......... 228,759 238,338 208,037 71,836 194,477
Gain from sale of
property and
equipment............. 6,993 (9,222) (223,593) (5,521) --
Deferred income taxes.. (2,295,336) (1,400,500) 2,336,100 1,204,700 2,338,223
Non-cash compensation
expense from reverse
acquisition........... -- -- -- -- 6,978,300
Warrant compensation... 2,400,000 -- -- -- --
Changes in operating
assets and
liabilities, net of
effect of
acquisitions
accounted for as
purchases:
(Increase) decrease
in -
Accounts receivable.. (571,196) (403,499) (401,940) (1,756,106) (2,078,958)
Inventories.......... (177,969) 171,699 332,040 456,037 29,553
Costs and estimated
earnings in excess
of billings on
uncompleted
contracts........... (174,216) 163,218 22,894 -- (30,045)
Prepaid expenses and
other current
assets.............. 2,718 (33,805) (7,644) (1,068,085) 71,952
Refundable income
taxes............... -- -- (3,235,500) -- 431,378
Other noncurrent
assets.............. -- -- -- -- 4,821
Increase (decrease)
in -
Accounts payable..... (2,464) 425,430 (76,759) 1,400,875 461,236
Accrued expenses..... 417,434 667,499 2,533,826 (435,002) (5,848,590)
Due to related
parties............. -- -- -- -- (10,395)
Billings in excess of
costs and estimated
earnings on
uncompleted
contracts........... 248,316 (143,888) (85,946) 340,007 311,465
Deferred service
contract revenue.... 46,264 23,516 5,904 27,844 (104,989)
Income tax payable... (77,096) 590,661 (295,525) (1,597,897) (221,172)
Other current
liabilities......... -- -- -- -- 619,120
Compensation and
benefits payable.... 1,498,152 1,579,127 254,920 (1,086,957) (8,513)
Other long-term
liabilities......... -- -- -- -- 121,405
----------- ----------- ----------- ----------- ------------
Net cash provided by
(used in) operating
activities......... 2,339,419 4,007,435 3,702,885 (1,506,124) (2,565,414)
----------- ----------- ----------- ----------- ------------
CASH FLOWS FROM
INVESTING ACTIVITIES:
Cash paid for
acquisitions, net of
cash acquired of
$2,011,220............ -- -- -- -- (5,342,855)
Deferred offering
costs................. -- -- -- -- (545,690)
Purchases of property
and equipment......... (370,289) (246,009) (182,256) (49,048) (364,955)
Proceeds from sale of
property and
equipment............. -- 56,909 296,026 -- --
Proceeds from note
receivable............ 29,396 -- 155,803 -- --
----------- ----------- ----------- ----------- ------------
Net cash provided by
(used in) investing
activities......... (340,893) (189,100) 269,573 (49,048) (6,253,500)
----------- ----------- ----------- ----------- ------------
CASH FLOWS FROM
FINANCING ACTIVITIES:
Purchases of stock..... (1,534,896) (2,657,565) (787,174) (205,471) --
Repurchase of warrants. -- -- (538,500) -- --
Proceeds from long-term
debt.................. -- -- -- -- 29,600,000
Payments of long-term
debt.................. -- -- (35,373) -- (2,976,681)
Payments of other long-
term obligations...... -- (37,000) (39,100) (13,000) --
Deferred offering
costs................. -- -- -- -- (31,838)
Issuance of stock...... -- -- -- -- 4,099,230
Exercise of options.... -- -- -- -- 30,775
Distributions to
shareholders.......... -- -- (6,548) -- (20,366,951)
----------- ----------- ----------- ----------- ------------
Net cash provided by
(used in) financing
activities......... (1,534,896) (2,694,565) (1,406,695) (218,471) 10,354,535
----------- ----------- ----------- ----------- ------------
NET INCREASE (DECREASE)
IN CASH AND CASH
EQUIVALENTS............ 463,630 1,123,770 2,565,763 (1,773,643) 1,535,621
CASH AND CASH
EQUIVALENTS, beginning
of period.............. 186,243 649,873 1,773,643 1,773,643 4,339,406
----------- ----------- ----------- ----------- ------------
CASH AND CASH
EQUIVALENTS, end of
period................. $ 649,873 $ 1,773,643 $ 4,339,406 $ -- $ 5,875,027
=========== =========== =========== =========== ============
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-37
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

Group Maintenance America Corp. (GroupMAC Parent) was incorporated as a
Texas corporation in October, 1996 to build a national company providing
heating, ventilation and air conditioning (HVAC), plumbing and electrical
services.

Although for legal purposes Airtron was acquired by GroupMAC Parent, for
accounting purposes, the transaction was accounted for as a reverse
acquisition, as if Airtron acquired GroupMAC Parent, due to the fact that the
former shareholders of Airtron then owned a majority of GroupMAC Parent's
common stock. In connection with the purchase of GroupMAC Parent, the
consideration paid to the shareholders of GroupMAC Parent was recorded as a
nonrecurring compensation expense of $6,978,300 in the accompanying statements
of operations for the four month period ended June 30, 1997. The consolidated
financial statements presented herein for the periods prior to the effective
date of the acquisition only include the accounts of Airtron. The consolidated
statements of shareholders' equity have been converted from Airtron's capital
stock structure to GroupMAC Parent's capital stock structure to reflect the
exchange of shares pursuant to the Agreement. The cash paid to the Airtron
shareholders, net of existing liabilities to former shareholders, has been
treated as a distribution to the Airtron shareholders. The consolidated group
of companies are collectively referred to herein as GroupMAC and Subsidiaries
or "the Company." All significant intercompany balances have been eliminated.
Concurrent with the initial public offering of the Company's common stock, the
Company intends to change its fiscal year end from February 28 to December 31.

Airtron was incorporated in 1970 as a Delaware Corporation. Airtron installs
and services brand name heating and air conditioning equipment for residential
and commercial customers located in Ohio, Indiana, Kentucky, Florida and
Texas.

In May and June 1997, the Company acquired in separate transactions seven
additional residential or commercial service companies (the Acquired
Companies), through a combination of cash and preferred and common stock of
the Company. Subsequent to June 30, 1997 the Company acquired three additional
companies and has signed definitive agreements to acquire 13 others.

The acquisitions of the Acquired Companies were accounted for as purchase
business combinations, with the results of operations included in the
Company's financial statements from the effective date of acquisition.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

The interim consolidated financial statements for the four months ended June
30, 1996, are unaudited, and certain information and footnote disclosures,
normally included in financial statements prepared in accordance with
generally accepted accounting principles, have been omitted. In the opinion of
management, all adjustments, consisting only of normal recurring adjustments,
necessary to fairly present the financial position, results of operations and
cash flows with respect to the interim financial statements, have been
included. The results of operations for the interim periods are not
necessarily indicative of the results for the entire fiscal year.

F-38
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

Use of Estimates

The preparation of consolidated financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

Revenue Recognition

Revenues from work orders are recognized as services are performed. Revenues
from service and maintenance contracts are recognized over the life of the
contracts. Revenues from construction contracts are recognized on a percentage
of completion basis using the cost-to-cost method. Provisions for estimated
losses on uncompleted contracts are made in the period in which such losses
are determined. Changes in job performance, job conditions, and estimated
profitability may result in revisions to costs and revenues and are recognized
in the period in which the revisions are determined.

Cash and Cash Equivalents

Cash equivalents of approximately $911,000, $2,189,000 and $3,823,000 at
February 29, 1996, February 28, 1997 and June 30, 1997, respectively, consist
of short-term investments in money market funds. For purposes of the
statements of cash flows, the Company considers all highly liquid investments
with original maturities of three months or less to be cash equivalents. Cash
payments for income taxes were approximately $2,946,000, $2,452,000,
$2,586,000 and $456,000 for the years ended February 28, 1995, February 29,
1996 and February 28, 1997 and the four months ended June 30, 1997,
respectively.

Investments

The Company classifies all investments held for the deferred compensation
plan with readily determinable fair values as trading securities. These
securities are recorded at fair value with unrealized holding gains and losses
reported in earnings. Where readily determinable fair values are not
available, investments are recorded at cost.

Inventories

Inventories consist primarily of purchased materials and supplies. The
inventory is valued at the lower of cost or market, with cost determined on a
first-in, first-out (FIFO) basis.

Property and Equipment

Property and equipment is stated at cost. Depreciation is computed
principally using the straight-line method over the useful lives of the
assets. Leasehold improvements are amortized over the lesser of the remaining
lease term or the estimated useful life of the asset.

Goodwill

F-39
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

this intangible asset by determining whether the amortization of the goodwill
balance over its remaining life can be recovered through undiscounted future
operating cash flows of the acquired operation. The amount of goodwill
impairment, if any, is measured based on projected discounted future operating
cash flows compared to the carrying value of goodwill. The assessment of the
recoverability of goodwill will be impacted if estimated future operating cash
flows are not achieved.

Stock-Based Compensation

SFAS No. 123, "Accounting for Stock-Based Compensation," encourages, but
does not require companies to record compensation cost for stock-based
employee compensation plans at fair value. The Company has chosen to continue
to account for stock-based compensation using the intrinsic value method
prescribed in Accounting Principles Board Opinion No. 25, "Accounting for
Stock Issued to Employees," and related Interpretations. Accordingly,
compensation cost for stock options is measured as the excess, if any, of the
quoted market price of the Company's stock at the date of the grant over the
amount an employee must pay to acquire the stock.

Warranty Costs

The Company generally warrants all of its work for a period of one year from
the date of installation. A provision for estimated warranty costs is made at
the time a product is sold or service is rendered.

Income Taxes

The Company uses the asset and liability method to account for income taxes.
Deferred tax assets and liabilities are recognized for the future tax
consequences attributable to differences between the financial statement
carrying amounts of existing assets and liabilities and their respective tax
bases and operating loss and tax credit carryforwards. Deferred tax assets and
liabilities are measured using enacted tax rates expected to apply to taxable
income in the years in which those temporary differences are expected to be
recovered or settled. The effect on deferred tax assets and liabilities of a
change in tax rates is recognized in income in the period that includes the
enactment date.

New Accounting Pronouncement

Effective March 1, 1996, the Company adopted SFAS No. 121, Accounting for
the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed
Of. Accordingly, in the event that facts and circumstances indicate that
property and equipment, and intangible or other assets, may be impaired, an
evaluation of recoverability would be performed. If an evaluation is required,
the estimated future undiscounted cash flows associated with the asset are
compared to the asset's carrying amount to determine if a write-down to market
value is necessary. Adoption of this standard did not have a material effect
on the financial position or results of operations of the Company.

In February 1997, the Financial Accounting Standards Board issued SFAS 128,
Earnings Per Share, which the Company is required to adopt for both interim
and annual periods ending after December 15, 1997. SFAS 128 simplifies the
earnings per share calculation by replacing primary earnings per share with
basic earnings per share, as well as requiring the presentation of fully
diluted earnings per share. Basic earnings per share is computed by dividing
reported earnings available to common shareholders by the weighted average
shares outstanding. The Company's current presentation of net income per share
is the same as the fully diluted earnings per share presentation required by
SFAS 128.

F-40
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

Net Income Per Share

Net income per share is calculated by dividing net income by the weighted
average number of shares of common stock and common stock equivalents. Stock
options are regarded as common stock equivalents and are therefore considered
in net income per share calculations if dilutive. Common stock equivalents are
computed using the treasury stock method. All stock options are dilutive and,
accordingly, primary and fully diluted net income per share are the same.

The following table summarizes weighted average shares outstanding for each
of the periods presented (in thousands).

<TABLE>
<CAPTION>
FOUR MONTHS ENDED
YEAR ENDED YEAR ENDED YEAR ENDED JUNE 30,
FEBRUARY 28, FEBRUARY 29, FEBRUARY 28, ---------------------
1995 1996 1997 1996 1997
------------ ------------ ------------ ----------- ---------
(UNAUDITED)
<S> <C> <C> <C> <C> <C>
Shares issued in the
acquisition of Airtron. 8,008,122 6,190,337 5,172,201 5,172,201 4,652,140
Group Maintenance
America Corp. shares
outstanding, excluding
acquisitions........... -- -- -- -- 2,953,345
Shares issued for the
acquisition of the
Acquired Companies..... -- -- -- -- 1,102,513
Stock options, net of
assumed repurchase of
common shares as
treasury stock......... -- -- -- -- 167,297
--------- --------- --------- --------- ---------
8,008,122 6,190,337 5,172,201 5,172,201 8,875,295
========= ========= ========= ========= =========
</TABLE>

3. BUSINESS COMBINATIONS

During May and June 1997, the Company acquired the Acquired Companies for an
aggregate consideration of approximately $21,608,000. This consisted of
$7,705,000 in cash and payables to the former shareholders of the Acquired
Companies, and 2,248,000 and 1,110,019 shares of preferred and common stock,
respectively. The preferred stock was valued at $2,248,000 its redemption
value of $1 per share. The common stock was valued at its estimated fair value
at the time of the respective acquisition. The Company financed the cash
portion of the purchase consideration through borrowings under its credit
agreement. Purchase price consideration is subject to final adjustment. The
allocation of purchase price to the assets acquired and liabilities assumed
has been initially assigned and recorded based on preliminary estimates of
fair value and may be revised as additional information becomes available.

F-41
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

The unaudited pro forma data presented below consists of the combined income
statement data for GroupMAC Parent, Airtron and the Acquired Companies as if
the acquisitions were effective on the first day of the period being reported
(in thousands, except for per share amounts) (unaudited).

<TABLE>
<CAPTION>
FISCAL FOUR MONTHS
YEAR ENDED
1996 JUNE 30, 1997
-------- -------------
<S> <C> <C>
Revenues.......................................... $128,500 $43,900
======== =======
Net income........................................ $ 6,000 $ 1,000
======== =======
Net income per share.............................. $ 0.68 $ 0.11
======== =======
</TABLE>

The above pro forma amounts for 1996 include the historical information for
each of the companies using their historical year end, rather than the year
end of the Company, as the Acquired Companies year end approximates the
Company's. The pro forma amounts for 1997 include the results of operations
for each of the companies for the four months ended June 30, 1997. Pro forma
adjustments included in the amounts above include compensation differentials,
adjustment for goodwill amortization over a period of 40 years, elimination of
historical interest expense on long-term debt which was repaid, the addition
of interest expense on borrowed funds used to finance the acquisition of
Airtron and the Acquired Companies, and adjustment to the federal and state
income tax provisions based on pro forma operating results. Net income per
share for 1996 and 1997 assumes all shares issued for the acquisitions of
Airtron and the Acquired Companies had been outstanding for the periods
presented.

4. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Other noncurrent assets consists of the following:

<TABLE>
<CAPTION>
FEBRUARY FEBRUARY JUNE 30,
29, 1996 28, 1997 1997
---------- ---------- ----------
<S> <C> <C> <C>
Investments restricted for benefit of
employees:
Recorded at fair value..................... $4,033,097 $ -- $ --
Recorded at cost........................... 3,153,360 2,791,491 --
Note receivable.............................. 155,803 -- --
Refundable income taxes...................... -- -- 2,183,883
Other noncurrent assets...................... -- -- 486,092
---------- ---------- ----------
$7,342,260 $2,791,491 $2,669,975
========== ========== ==========
</TABLE>

Accrued expenses consists of the following:

<TABLE>
<S> <C> <C> <C>
Accrued payroll costs and benefits............ $4,423,249 $7,006,790 $3,063,446
Warranties.................................... 494,506 544,031 853,592
Other accrued expenses........................ 313,774 214,534 1,398,913
---------- ---------- ----------
$5,231,529 $7,765,355 $5,315,951
========== ========== ==========
</TABLE>

F-42
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
5. COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS

The summary of the status of uncompleted contracts is as follows:

<TABLE>
<CAPTION>
FEBRUARY 29, FEBRUARY 28, JUNE 30,
1996 1997 1997
------------ ------------ ------------
<S> <C> <C> <C>
Costs incurred....................... $ 14,613,066 $ 13,125,649 $ 16,489,091
Estimated earnings recognized........ 2,983,612 2,275,287 3,129,035
------------ ------------ ------------
17,596,678 15,400,936 19,618,126
Less billings on contracts........... (19,115,503) (16,856,709) (21,355,319)
------------ ------------ ------------
$ (1,518,825) $ (1,455,773) $ (1,737,193)
============ ============ ============
</TABLE>

These costs and estimated earnings on uncompleted contracts are included in
the accompanying consolidated balance sheets under the following captions:

<TABLE>
<CAPTION>
FEBRUARY 29, FEBRUARY JUNE 30,
1996 28, 1997 1997
------------ ----------- -----------
<S> <C> <C> <C>
Costs and estimated earnings in excess
of billings on uncompleted contracts... $ 36,123 $ 13,229 $ 43,274
Billings in excess of costs and
estimated earnings on uncompleted
contracts.............................. (1,554,948) (1,469,002) (1,780,467)
----------- ----------- -----------
$(1,518,825) $(1,455,773) $(1,737,193)
=========== =========== ===========
</TABLE>

6. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and equipment
were as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL FEBRUARY FEBRUARY JUNE 30,
LIVES 29, 1996 28, 1997 1997
----------- ----------- ----------- -----------
<S> <C> <C> <C> <C>
Land........................ -- $ 244,813 $ 217,551 $ 217,551
Building and improvements... 20-30 years 927,631 639,903 639,903
Service and other vehicles.. 4-7 years 114,837 134,795 2,533,669
Machinery and equipment..... 5-10 years 679,748 686,319 1,156,245
Office equipment, furniture
and fixtures............... 5-10 years 667,220 724,013 1,313,933
Leasehold improvements...... -- 542,422 550,033 687,214
----------- ----------- -----------
3,176,671 2,952,614 6,548,515
Less accumulated
depreciation............... (1,789,215) (1,663,372) (1,827,054)
----------- ----------- -----------
$ 1,387,456 $ 1,289,242 $ 4,721,461
=========== =========== ===========
</TABLE>

F-43
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

7. SHORT-AND LONG-TERM DEBT

Short-and long-term debt consists of the following:

<TABLE>
<CAPTION>
FEBRUARY JUNE 30,
28, 1997 1997
---------- -----------
<S> <C> <C>
Note payable to former shareholder at 8.25%, due in
monthly installments of $20,822 including interest,
repaid in May 1997 with proceeds from the Company's
Credit Agreement.................................... $1,289,927 $ --
Credit Agreement:
Revolving credit loan.............................. -- 500,000
Advancing acquisition line of credit loan.......... -- 9,100,000
Term loan.......................................... -- 20,000,000
Equipment installment loans payable to banks and
other financial institutions, interest varying from
7.5% to 10.25%, payable in monthly installments
including interest, final installment due January
1998................................................ -- 450,230
Equipment installment loans payable to banks,
interest varying from 8.75% to 9.0%, secured by
certain equipment, payable in monthly and quarterly
installments including interest, final installment
due November 2000................................... -- 471,295
Notes payable to the former shareholders of an
Acquired Company at 8%, payable in monthly
installments through November 2004.................. -- 523,669
---------- -----------
Total short- and long-term debt.................. 1,289,927 31,045,194
Less short-term borrowings and current maturities.... (148,994) (4,577,200)
---------- -----------
$1,140,933 $26,467,994
========== ===========
</TABLE>

On May 2, 1997, the Company entered into a credit agreement (the Credit
Agreement) with a total commitment of $35 million. The Credit Agreement
consists of three portions: (a) a revolving credit agreement up to $3 million
for use as working capital, (b) a $12 million advancing acquisition line of
credit to finance the acquisitions, and (c) a $20 million term loan to finance
the acquisition of Airtron. Borrowings under the Credit Agreement bear
interest through October 1998 at the prime rate. Beginning in November 1998,
the interest rate is adjusted for margins ranging from 0% to 0.5%, depending
on the ratio of the Company's funded debt to its historical earnings before
interest, taxes, depreciation and amortization, subject to certain
adjustments, as approved by the lender. The Company is subject to commitment
fees of 0.25% per annum for the unutilized portion of the revolving credit
agreement and the advancing acquisition line of credit. The Credit Agreement
prohibits the Company from incurring additional indebtedness, except for
indebtedness existing at the time of execution of the Credit Agreement,
letters of credit up to $750,000, earn-out obligations and other limitations.
The Company may not pay any dividends or repurchase outstanding shares of the
Company's stock, except for the purchase of stock of departing officers and
employees. The Credit Agreement also requires the Company to maintain certain
levels of consolidated net worth and comply with certain other financial
covenants. The Company's subsidiaries have guaranteed all borrowings under the
Credit Agreement. All outstanding borrowings under the revolving credit
agreement are due on or before October 31, 1998, and the advancing acquisition
line of credit and the term loan mature on April 30, 2003. At June 30, 1997,
the applicable interest rate is 8.5%.

F-44
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

The aggregate maturities of the long-term debt as of June 30, 1997 are as
follows:

<TABLE>
<CAPTION>
YEAR ENDING JUNE 30,
--------------------
<S> <C>
1998..................................... $ 4,577,200
1999..................................... 5,168,487
2000..................................... 5,498,520
2001..................................... 5,450,153
2002..................................... 5,450,153
Thereafter............................... 4,900,681
-----------
$31,045,194
===========
</TABLE>

8. DUE TO SHAREHOLDERS

Under the Agreement, part of the cash purchase price paid to shareholders
relates to the tax benefits which will be received by the Company related to
the exercise of previously outstanding warrants and distributions under
deferred compensation arrangements. A liability and deferred tax asset of
$9,744,500 have been recognized in the accompanying consolidated financial
statements for an estimate of these amounts as of June 30, 1997.

9. STOCK-BASED COMPENSATION PLANS

Prior to the Agreement, under an option agreement dated October 24, 1996,
GroupMAC Parent granted stock options to directors and senior management to
purchase an aggregate of 360,800 shares at an exercise price of $3.08.
Subsequent to the Agreement the Company did not grant any stock options
through June 30, 1997. Under this option agreement, options representing
350,800 shares of common stock were outstanding at June 30, 1997 and there
were options representing 28,000 shares of common stock available for grant.

The following is a summary of stock option activity and number of shares
reserved for outstanding options.

<TABLE>
<CAPTION>
OPTION NUMBER
PRICE PER OF
SHARE SHARES
--------- -------
<S> <C> <C>
Granted............................................... $3.08 291,600
-------
Balance at December 31, 1996.......................... 291,600
Granted............................................... $3.08 69,200
-------
Balance at April 30, 1997, date of Agreement.......... 360,800
Exercised............................................. $3.08 (10,000)
-------
Balance at June 30, 1997.............................. 350,800
=======
</TABLE>

F-45
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES
(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

The Company has adopted the disclosure-only provisions of the Statement of
Financial Accounting Standards (SFAS) No. 123, Accounting for Stock-Based
Compensation. Accordingly, compensation cost has been recognized only for the
options which have an exercise price less than the fair value of the
underlying stock at date of grant. Had compensation cost for the Company's
stock option plan been determined consistent with the provisions of SFAS No.
123, net income and net income per share would have been decreased by the
following pro forma amounts:

<TABLE>
<CAPTION>
FOUR MONTHS
ENDED
JUNE 30,
1997
-----------
<S> <C>
Net Loss:
As Reported...................................................... $(5,824,682)
Pro forma........................................................ $(5,853,682)
Net Loss Per Share:
As Reported...................................................... $ (0.66)
Pro forma........................................................ $ (0.66)
</TABLE>

The pro forma compensation cost may not be representative of that to be
expected in future years because options vest over several years and
additional awards may be made each year.

The fair value of each option grant is estimated on the date of grant using
the Black-Scholes option-pricing model with the following weighted average
assumptions used for fiscal 1996 for the plan: no dividend yield; expected
volatility of 0%; risk-free interest rate of 6.26%; and expected lives of ten
years. The weighted average fair value per share of the options granted prior
to the Agreement is estimated to be $1.425.

In July 1994, Airtron extended 60,000 warrants to purchase common shares at
$1 each until August 1, 2011. The appraisal for market value of Airtron's
stock at that time, was $40 per share, resulting in a charge of $2,400,000 and
an offsetting increase in retained earnings in fiscal 1995. All 60,000
warrants were outstanding at February 29, 1996. In August 1996, 15,000 of
these warrants were purchased from a former shareholder for $538,500,
resulting in a reduction in retained earnings for the original recorded value
of the warrants of $600,000 with the offset recorded as other income. At
February 28, 1997, 45,000 warrants were outstanding. In connection with the
Agreement these warrants were exchanged for cash and preferred and common
shares of GroupMAC Parent.

Airtron had deferred compensation arrangements for certain members of
management and the Board of Directors.The assets and liabilities previously
recorded by the Company have been reflected as distributions in the
accompanying financial statements.

10. SHAREHOLDERS' EQUITY

COMMON STOCK

The Company is authorized to issue 100 million shares of common stock, $.001
par value. There are 8,707,998 shares of common stock outstanding at June 30,
1997.

On October 24, 1996, the Company entered into a stock subscription agreement
with an individual allowing for the purchase of up to 2.6 million shares of
common stock at a purchase price of $3.08 per share. Under this agreement, 0.2
million shares were purchased in October, 1996, 0.2 million in January, 1997,
0.2 million in April, 1997, 880,000 on May 5, 1997, 452,000 on June 12, 1997,
326,000 on July 14, 1997 and additional shares are required to be purchased
upon written notice from the Company, but in no event later than October 24,
1998.

F-46
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES

(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

PREFERRED STOCK

The Company is authorized to issue up to 50 million shares of preferred
stock, par value of $.001 per share, in one or more series. The non-
convertible, non-voting preferred stock is redeemable at any time after the
initial issuance, in whole or in part, at the option of the Company, at an
amount equal to the liquidation value of $1.00 per share plus any accrued but
unpaid dividends. In the event that an initial public offering (IPO) has not
occurred by June 30, 1999, cumulative dividends accrue commencing July 1, 1999
at an annual rate of $.08 per whole share. Redemption of all outstanding
preferred stock is mandatory upon an IPO.

In connection with certain acquisitions, the Company has issued 15,407,511
shares of preferred stock and warrants to purchase 1,713,622 shares of
preferred stock. Subsequent to June 30, 1997, an additional 2,150,462 shares
of preferred stock were issued in connection with other acquisitions (see Note
16).

11. INCOME TAXES

Income tax expense consists of:

<TABLE>
<CAPTION>
FOUR MONTHS
YEAR ENDED YEAR ENDED YEAR ENDED ENDED
FEBRUARY FEBRUARY FEBRUARY JUNE 30,
28, 1995 29, 1996 28, 1997 1997
----------- ----------- ----------- -----------
<S> <C> <C> <C> <C>
Current:
Federal................... $ 2,590,000 $ 2,529,500 $(1,020,024) $(1,656,723)
State and local........... 616,000 536,456 384,338 118,500
----------- ----------- ----------- -----------
3,206,000 3,065,956 (635,686) (1,538,223)
Deferred:
Federal................... (2,295,336) (1,415,000) 2,207,366 2,338,223
State and local........... -- -- -- --
----------- ----------- ----------- -----------
$ 910,664 $ 1,650,956 $ 1,571,680 $ 800,000
=========== =========== =========== ===========
</TABLE>

Total income tax expense differs from the amounts computed by applying the
U.S. federal statutory income tax rate of 34% to income before income tax
provision as a result of the following:

<TABLE>
<CAPTION>
FOUR MONTHS
YEAR ENDED YEAR ENDED YEAR ENDED ENDED
FEBRUARY 28, FEBRUARY 29, FEBRUARY 28, JUNE 30,
1995 1996 1997 1997
------------ ------------ ------------ -----------
<S> <C> <C> <C> <C>
Tax provision (benefit) at
statutory rate............ $577,906 $1,288,538 $1,328,635 $(1,708,392)
Increase (decrease)
resulting from:
State income taxes, net
of federal benefit...... 406,560 354,061 253,663 78,210
Compensation expense from
reverse acquisition..... -- -- -- 2,372,622
Other.................... (73,802) 8,357 (10,618) 57,560
-------- ---------- ---------- -----------
$910,664 $1,650,956 $1,571,680 $ 800,000
======== ========== ========== ===========
</TABLE>

F-47
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES

(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

The components of the deferred income tax assets and liabilities are as
follows:

<TABLE>
<CAPTION>
FEBRUARY FEBRUARY JUNE 30,
29, 1996 28, 1997 1997
---------- ---------- -----------
<S> <C> <C> <C>
Deferred income tax assets:
Allowance for doubtful
accounts................. $ 221,600 $ 187,200 $ 201,660
Inventories............... 222,800 245,600 245,590
Accrued expenses.......... 611,200 577,300 1,213,640
Compensation and benefits. 5,430,000 2,986,600 10,076,080
Other..................... -- -- 473,360
---------- ---------- -----------
Total deferred income
tax assets............. 6,485,600 3,996,700 12,210,330
---------- ---------- -----------
Deferred income tax
liabilities:
Depreciation.............. (2,000) (37,100) (313,580)
State franchise tax....... (163,300) -- (35,300)
Other..................... (24,600) -- (134,000)
---------- ---------- -----------
Total deferred income
tax liabilities........ (189,900) (37,100) (482,880)
---------- ---------- -----------
Net deferred income tax
assets................. $6,295,700 $3,959,600 $11,727,450
========== ========== ===========
</TABLE>

These deferred income tax assets and liabilities are included in the
accompanying consolidated balance sheets under the following captions:

<TABLE>
<S> <C> <C> <C>
Deferred tax assets--current................. $1,338,000 $ 764,500 $ 1,607,450
Deferred tax assets--long-term............... 4,957,700 3,195,100 10,120,000
---------- ---------- -----------
$6,295,700 $3,959,600 $11,727,450
========== ========== ===========
</TABLE>

Management believes it is more likely than not the Company will realize the
benefits of the net deferred tax assets.

12. LEASES

Operating leases for certain facilities and transportation equipment expire
at various dates through 2009. Certain leases contain renewal options.
Approximate minimum future rental payments as of June 30, 1997 are as follows:

<TABLE>
<S> <C>
1998....................................... $ 2,141,000
1999....................................... 1,705,000
2000....................................... 1,341,000
2001....................................... 1,129,000
2002....................................... 1,018,000
Thereafter................................. 5,569,000
-----------
$12,903,000
===========
</TABLE>

Total rental expense for the years ended February 28, 1995, February 29,
1996 and February 28, 1997 and the four months ended June 30, 1997 was
approximately $1,223,000, $1,970,000, $1,726,000 and $584,000, respectively,
(including $328,000, $445,000, $605,000 and $245,000, respectively, to related
parties).

F-48
<PAGE>

GROUP MAINTENANCE AMERICA CORP. AND SUBSIDIARIES

(FORMERLY AIRTRON, INC.)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

13. EMPLOYEE BENEFIT PLANS

Airtron maintains a Profit Sharing and Stock Ownership Plan (the Plan).
Substantially all Airtron employees are eligible to participate in the Plan.
Airtron's contribution, as determined by the Board of Directors, is based upon
the participant's gross pay and amounted to approximately $222,000 in fiscal
years ending in 1995, 1996 and 1997 and $74,000 in the four months ended June
30, 1997. In connection with the Agreement (see Note 1) all Airtron shares
held by the Plan were exchanged for cash and preferred and common shares of
Group MAC Parent.

Certain of the Acquired Companies maintain defined contribution plans
covering substantially all employees.

14. COMMITMENTS AND CONTINGENCIES

The Company is involved in various legal actions. It is not possible to
predict the outcome of these matters; however, in the opinion of management,
the disposition of these matters will not have a material adverse effect on
the Company's consolidated financial position or results of operations.

15. FINANCIAL INSTRUMENTS

The Company's financial instruments consist of cash and cash equivalents,
restricted investments (carried at cost or fair value--see Note 4) and long-
term debt. The Company believes that the carrying value of these instruments
on the accompanying balance sheets approximate their fair value.

16. SUBSEQUENT EVENTS

During July 1997, the Company acquired three companies for an aggregate of
approximately $4,088,000 in cash and payables to the former shareholders of
the companies, and 2,150,000 and 304,000 shares of preferred and common stock,
respectively, along with warrants to purchase 514,000 shares of common stock.
The Company financed the cash portion of the purchase consideration through
borrowings under its Credit Agreement. The acquisitions will be accounted for
under the purchase method. Purchase price consideration is subject to final
adjustment. The allocation of purchase price to the assets acquired and
liabilities assumed has been initially assigned and recorded based on
preliminary estimates of fair value and may be revised as additional
information becomes available.

The Company has signed definitive agreements to acquire 13 companies with
combined annual revenues of approximately $168.7 million for which the
closings will occur simultaneously with an initial public offering expected to
occur in the last quarter of 1997. Such companies provide HVAC, plumbing
and/or electrical services to residential and/or commercial customers. Such
services include both new installations and service, repair and replacement
work.

Subsequent to the independent auditors' report, on August 16, 1997, the
Company's Board of Directors approved a 1-for-2.5 reverse stock split on the
Company's common stock. All share and per share data included in the
consolidated financial statements have been restated to reflect the stock
split.

F-49
<PAGE>

INDEPENDENT AUDITORS' REPORT

To the Board of Directors
MacDonald-Miller Industries, Inc.

We have audited the accompanying consolidated balance sheet of MacDonald-
Miller Industries, Inc. and subsidiaries as of December 31, 1995 and 1996 and
the related consolidated statements of income, shareholders' equity and cash
flows for each of the three years ended December 31, 1996. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.

In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of MacDonald-
Miller Industries, Inc. and subsidiaries as of December 31, 1995 and 1996, and
the results of their operations and cash flows for each of the three years
ended December 31, 1996 in conformity with generally accepted accounting
principles.

Moss Adams LLP

Seattle, Washington
April 18, 1997, except
for Notes 2 and 11,
as to which the date
is August 18, 1997

F-50
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEET

<TABLE>
<CAPTION>
DECEMBER 31,
----------------------- JUNE 30,
ASSETS 1995 1996 1997
------ ----------- ----------- -----------
(UNAUDITED)
<S> <C> <C> <C>
CURRENT ASSETS:
Cash and cash equivalents................. $ -- $ -- $ --
Receivables, less allowance for doubtful
accounts of $165,000, $140,000 and
$158,221, respectively:
Trade.................................... 10,451,117 13,869,074 15,448,095
Related parties and employees............ 120,972 358,798 679,277
Inventories............................... 856,909 904,256 1,044,667
Costs and estimated earnings in excess of
billings on uncompleted contracts........ 1,585,399 1,524,688 1,117,506
Prepaid expenses.......................... 56,226 129,969 73,781
Income taxes refundable................... -- 114,396 --
----------- ----------- -----------
Total current assets................... 13,070,623 16,901,181 18,363,326
----------- ----------- -----------
PROPERTY AND EQUIPMENT, net................ 1,372,281 1,653,371 1,744,972
----------- ----------- -----------
OTHER NONCURRENT ASSETS
Real estate held for investment........... 510,000 508,066 411,066
Other assets.............................. 112,110 151,364 113,026
Deferred income taxes..................... 148,000 105,000 196,000
----------- ----------- -----------
770,110 764,430 720,092
----------- ----------- -----------
Total assets........................... $15,213,014 $19,318,982 $20,828,390
=========== =========== ===========
<CAPTION>
LIABILITIES AND SHAREHOLDERS' EQUITY
------------------------------------
<S> <C> <C> <C>
CURRENT LIABILITIES:
Current maturities of long-term debt...... $ 100,136 $ 96,000 $ 96,000
Accounts payable.......................... 4,697,532 5,364,411 5,472,131
Notes payable
Bank..................................... 2,199,135 5,395,816 4,790,113
Stockholders and related parties......... 673,523 30,000 35,340
Accrued expenses.......................... 2,034,559 1,950,305 2,602,335
Income taxes payable...................... 28,764 -- 396,001
Billings in excess of costs and estimated
earnings on uncompleted contracts........ 1,107,971 1,739,458 1,715,783
----------- ----------- -----------
Total current liabilities.............. 10,841,620 14,575,990 15,107,703
----------- ----------- -----------
LONG-TERM DEBT, net of current maturities.. 699,098 758,149 708,285
----------- ----------- -----------
DEFERRED COMPENSATION...................... 355,085 189,848 189,848
----------- ----------- -----------
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock, no par value; 150,000 shares
authorized............................... 198,473 291,539 355,133
Retained earnings......................... 3,118,738 3,503,456 4,467,421
----------- ----------- -----------
Total shareholders' equity............. 3,317,211 3,794,995 4,822,554
----------- ----------- -----------
Total liabilities and shareholders'
equity................................ $15,213,014 $19,318,982 $20,828,390
=========== =========== ===========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-51
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
SIX MONTHS ENDED JUNE
YEARS ENDED DECEMBER 31, 30,
------------------------------------- ------------------------
1994 1995 1996 1996 1997
----------- ----------- ----------- ----------- -----------
(UNAUDITED) (UNAUDITED)
<S> <C> <C> <C> <C> <C>
REVENUES................ $42,806,970 $50,371,690 $71,597,840 $38,979,761 $41,972,630
COST OF SERVICES........ 34,751,602 40,711,615 61,573,569 34,302,006 36,087,411
----------- ----------- ----------- ----------- -----------
GROSS PROFIT........ 8,055,368 9,660,075 10,024,271 4,677,755 5,885,219
----------- ----------- ----------- ----------- -----------
SELLING, GENERAL AND
ADMINISTRATIVE
EXPENSES............... 7,238,480 8,652,392 8,785,314 4,282,720 4,279,274
----------- ----------- ----------- ----------- -----------
INCOME FROM
OPERATIONS......... 816,888 1,007,683 1,238,957 395,035 1,605,945
OTHER INCOME (EXPENSE):
Interest expense...... (295,299) (405,199) (593,039) (275,518) (258,159)
Other................. 2,637 52,292 (4,200) 87,110 185,180
----------- ----------- ----------- ----------- -----------
(292,662) (352,907) (597,239) (188,408) (72,979)
INCOME BEFORE INCOME
TAX PROVISION...... 524,226 654,776 641,718 206,627 1,532,966
INCOME TAX PROVISION.... 202,000 266,038 257,000 92,859 569,001
----------- ----------- ----------- ----------- -----------
NET INCOME.............. $ 322,226 $ 388,738 $ 384,718 $ 113,768 $ 963,965
=========== =========== =========== =========== ===========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-52
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
NUMBER
OF COMMON RETAINED
SHARES STOCK EARNINGS TOTAL
------- -------- ---------- ----------
<S> <C> <C> <C> <C>
BALANCE, December 31, 1993........... 102,603 $117,535 $2,407,774 $2,525,309
Issuance of common stock........... 2,777 55,540 -- 55,540
Purchase and retirement of common
stock............................. (2,834) (79,919) -- (79,919)
Net income......................... -- -- 322,226 322,226
------- -------- ---------- ----------
BALANCE, December 31, 1994........... 102,546 93,156 2,730,000 2,823,156
Issuance of common stock........... 4,802 108,514 -- 108,514
Purchase and retirement of common
stock............................. (100) (3,197) -- (3,197)
Net income......................... -- -- 388,738 388,738
------- -------- ---------- ----------
BALANCE, December 31, 1995........... 107,248 198,473 3,118,738 3,317,211
Issuance of common stock .......... 3,977 93,066 -- 93,066
Net income......................... -- -- 384,718 384,718
------- -------- ---------- ----------
BALANCE, December 31, 1996........... 111,225 291,539 3,503,456 3,794,995
Issuance of common stock........... 1,800 63,594 -- 63,594
Net income......................... -- -- 963,965 963,965
------- -------- ---------- ----------
BALANCE, June 30, 1997 (unaudited)... 113,025 $355,133 $4,467,421 $4,822,554
======= ======== ========== ==========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-53
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CASH FLOWS

<TABLE>
<CAPTION>
SIX MONTHS ENDED
YEAR ENDED DECEMBER 31, JUNE 30,
----------------------------------- ------------------------
1994 1995 1996 1996 1997
--------- ----------- ----------- ----------- -----------
(UNAUDITED) (UNAUDITED)
<S> <C> <C> <C> <C> <C>
CASH FLOWS FROM
OPERATING ACTIVITIES:
Net income............. $ 322,226 $ 388,738 $ 384,718 $ 113,768 $ 963,965
Adjustments to
reconcile net income
to cash flows from
operating activities:
Depreciation and
amortization.......... 282,602 304,505 420,882 198,365 231,110
(Gain) loss on
disposal of property
and equipment......... (7,897) 8,623 18,857 -- 38,019
Allowance for loss on
real estate held for
investment............ -- -- 25,000 25,000 97,000
Deferred income taxes.. (9,000) (67,000) 43,000 (81,000) (91,000)
Changes in operating
assets and
liabilities
(Increase) decrease
in:
Trade receivables.... (194,570) (3,017,806) (3,417,957) (1,151,807) (1,579,021)
Receivable from
related parties and
employees........... (61,153) 20,221 (237,826) 19,358 (320,479)
Inventories.......... (257,382) 99,318 (47,347) (304,600) (140,411)
Costs and estimated
earnings in excess
of billings on
uncompleted
contracts........... (48,470) (464,247) 60,711 (1,114,405) 384,331
Prepaid expenses..... 75,131 (19,344) (73,743) (107,635) 56,188
Income taxes
refundable.......... -- -- (114,396) (154,537) 114,396
Other assets......... 58,584 (43,857) (39,254) (146,603) 38,338
Increase (decrease)
in:
Accounts payable..... 17,989 834,519 126,369 (604,261) 706,169
Accrued expenses..... 509,728 372,884 (84,254) 606,812 652,030
Income taxes payable. (216,105) 25,894 (28,764) (28,764) 396,001
Billings in excess of
costs and estimated
earnings on
uncompleted
contracts........... (162,547) 660,445 631,487 659,394 (824)
Deferred
compensation........ -- 355,085 (165,237) -- --
--------- ----------- ----------- ----------- -----------
Net cash provided by
(used in) operating
activities............. 309,136 (542,022) (2,497,754) (2,070,915) 1,545,812
--------- ----------- ----------- ----------- -----------
CASH FLOWS FROM
INVESTING ACTIVITIES:
Purchases of property
and equipment......... (488,480) (678,422) (735,695) (573,000) (375,032)
Proceeds from sale of
property and
equipment............. 9,975 73,841 14,865 -- 14,302
Additions to real
estate held for
investment............ -- (510,000) (23,066) (21,289) --
--------- ----------- ----------- ----------- -----------
Net cash used in
investing activities... (478,505) (1,114,581) (743,896) (594,289) (360,730)
--------- ----------- ----------- ----------- -----------
CASH FLOWS FROM
FINANCING ACTIVITIES:
Disbursements in
transit............... -- 198,590 540,510 1,338,474 (598,449)
Increase (decrease) of
notes payable to bank,
net................... 361,025 394,297 3,196,682 1,331,530 (605,703)
Proceeds from notes
payable to related
parties............... 239,613 673,523 55,000 69,452 30,340
Payments of notes
payable to related
parties............... (288,454) (231,268) (698,523) (20,000) (25,000)
Proceeds from long-term
borrowings............ -- 816,932 312,021 -- --
Payments of long-term
debt.................. (99,457) (331,050) (257,106) (91,778) (49,864)
Proceeds from issuance
of common stock....... 55,540 108,514 93,066 37,526 63,594
Purchase and retirement
of common stock....... (79,919) (3,197) -- -- --
--------- ----------- ----------- ----------- -----------
Net cash provided by
(used in) financing
activities............. 188,348 1,626,341 3,241,650 2,665,204 (1,185,082)
--------- ----------- ----------- ----------- -----------
NET INCREASE (DECREASE)
IN CASH AND CASH
EQUIVALENTS............ 18,979 (30,262) -- -- --
CASH AND CASH
EQUIVALENTS, beginning
of period.............. 11,283 30,262 -- -- --
--------- ----------- ----------- ----------- -----------
CASH AND CASH
EQUIVALENTS, end of
period................. $ 30,262 $ -- $ -- $ -- $ --
========= =========== =========== =========== ===========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-54
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

MacDonald-Miller Industries, Inc. (the Company) (MMI), a Washington
corporation, is a mechanical contractor and service company engaged in the
design, installation and maintenance of heating, ventilating, air
conditioning, plumbing, refrigeration, and automated control systems for
commercial, industrial and residential properties. The main areas of operation
are in the states of Washington and Oregon.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation and Principles of Consolidation

On August 18, 1997, the Company signed an agreement and plan of merger with
Group Maintenance America Corp. (GroupMAC), whereby GroupMAC will acquire the
Company in a merger transaction for a combination of cash and common shares of
GroupMAC. The merger will close concurrent with the closing of the initial
public offering of the common stock of GroupMAC. Prior to the closing of the
acquisition, the Company will distribute the net assets of MacDonald-Miller
Residential (MMR) (a division of MMI), to its shareholders in a tax-free
distribution.

The consolidated financial statements include the accounts of MacDonald-
Miller Industries, Inc. and its wholly-owned subsidiaries MacDonald-Miller
Co., Inc., MacDonald-Miller Service, Inc. and MacDonald-Miller Residential
(collectively "the Company"). Intercompany balances and transactions are
eliminated in consolidation.

Interim Financial Information

The interim financial statements as of June 30, 1997 and 1996 and for the
six months then ended are unaudited. In the opinion of management, all
adjustments, consisting of only normal recurring adjustments, necessary to
fairly present the financial position, results of operations and cash flows
with respect to the interim financial statements, have been included. The
results of operations for the interim periods are not necessarily indicative
of the results for the entire fiscal year.

Use of Estimates

The preparation of the financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.
Significant estimates used in preparing these financial statements include
estimated costs to complete which have a direct effect on gross profit.

Revenue Recognition

Revenues from fixed-price and modified fixed-price construction contracts
are recognized on the percentage-of-completion basis using the cost-to-cost
method. This method is used because the Company considers contract costs to be
the best available measure of progress on these contracts. Revenues from cost-
plus-fee contracts are recognized on the basis of costs incurred during the
period plus the fee earned, measured by the same method. Provisions for
estimated losses on uncompleted contracts are made in the period in which such
losses are determined. Changes in job performance, job conditions, estimated
profitability and final contract settlements may result in revisions to costs
and revenues and are recognized in the period in which the revisions are
determined.

F-55
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

Inventories

Inventories consist of parts and supplies used in the Company's operation.
The inventories are valued at the lower of cost (determined using the first-
in, first-out method) or market.

Property and Equipment

Property and equipment is stated at cost. Depreciation is computed using
straight-line and accelerated methods over the useful life of the asset.
Leasehold improvements are amortized over the life of the related lease.

Disbursements in Transit

Under the Company's cash management system, checks issued, but not presented
to the bank frequently result in overdraft balances for financial accounting
purposes. These balances are classified as accounts payable in the balance
sheet and as a financing activity in the statement of cash flows.

Warranty Costs

The Company warrants labor for one year on new construction and 90 days
after servicing of air conditioning and heating units. A reserve for warranty
costs is recorded upon completion of installation or services.

Stock-Based Compensation

Effective January 1, 1996, the Company adopted Statement of Financial
Accounting Standards No. 123, Accounting for Stock-Based Compensation (SFAS
No. 123). The new standard measures compensation cost using a fair value
method, which computes compensation cost as the difference between the
options' fair value and the option price on the grant date. However, SFAS No.
123 allows companies to continue to measure compensation cost using the
intrinsic value method, which computes compensation cost as the difference
between a company's stock price and the option price at the grant date. The
Company has elected to continue to use the intrinsic value method.

Income Taxes

Income taxes are accounted for using an asset and liability approach which
requires the recognition of deferred tax liabilities and assets for the
expected future tax consequences of temporary differences between the
financial statement and tax basis of assets and liabilities at the applicable
enacted tax rates. Income taxes are explained further in Note 9.

Fair Value of Financial Instruments

The Company's financial instruments include cash and cash equivalents,
billed receivables, loans, short-term debt (a revolving line of credit with a
variable interest rate) and long-term debt. The carrying value of these
instruments approximate fair value.

Asset Impairment

Effective January 1, 1996, the Company adopted SFAS No. 121, Accounting for
the Impairment of Long Lived Assets and for Long-Lived Assets to Be Disposed
Of. Accordingly, in the event that facts and circumstances indicate that
property and equipment, and intangible or other assets may be impaired, an
evaluation of

F-56
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
recoverability would be performed. If an evaluation is required, the estimated
future undiscounted cash flows associated with the asset are compared to the
asset's carrying amount to determine if a write-down to market value is
necessary. Adoption of this standard did not have a material effect on the
financial position or results of operations of the Company.

Reclassifications

Certain amounts in the financial statements for 1994, 1995 and 1996 have
been reclassified to conform with the June 30, 1997 presentation. These
changes had no effect on operating results.

3. CONTRACTS RECEIVABLE

Accounts receivable consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31,
----------------------- JUNE 30,
1995 1996 1997
----------- ----------- -----------
(UNAUDITED)
<S> <C> <C> <C>
Contracts receivable
Completed contracts....................... $ 52,436 $ 511,903 $ 767,621
Contracts in progress..................... 7,630,893 10,385,634 11,884,570
Retentions................................ 1,479,905 1,591,230 1,704,309
----------- ----------- -----------
9,163,234 12,488,767 14,356,500
Service and maintenance..................... 1,128,007 1,219,618 1,195,211
Other....................................... 324,876 300,689 54,605
----------- ----------- -----------
10,616,117 14,009,074 15,606,316
Less allowance for doubtful accounts........ 165,000 140,000 158,221
----------- ----------- -----------
$10,451,117 $13,869,074 $15,448,095
=========== =========== ===========
</TABLE>

4. COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS

A summary of status of uncompleted contracts is as follows:

<TABLE>
<CAPTION>
DECEMBER 31,
----------------------- JUNE 30,
1995 1996 1997
----------- ----------- -----------
(UNAUDITED)
<S> <C> <C> <C>
Costs incurred on uncompleted contracts... $31,332,920 $38,002,646 $34,189,475
Estimated earnings........................ 5,989,754 5,494,012 4,996,665
----------- ----------- -----------
37,322,674 43,496,658 39,186,140
Less billings to date..................... 36,845,246 43,711,428 39,784,417
----------- ----------- -----------
$ 477,428 $ (214,770) $ (598,277)
=========== =========== ===========
</TABLE>

F-57
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

These costs and estimated earnings on uncompleted contracts are included in
the accompanying balance sheets under the following captions:

<TABLE>
<CAPTION>
DECEMBER 31,
------------------------ JUNE 30,
1995 1996 1997
----------- ----------- -----------
(UNAUDITED)
<S> <C> <C> <C>
Costs and estimated earnings in excess
of billings on uncompleted contracts... $ 1,585,399 $ 1,524,688 $ 1,117,506
Billings in excess of costs and
estimated earnings on uncompleted
contracts.............................. (1,107,971) (1,739,458) (1,715,783)
----------- ----------- -----------
$ 477,428 $ (214,770) $ (598,277)
=========== =========== ===========
</TABLE>

5. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and
equipment are as follows:

<TABLE>
<CAPTION>
ESTIMATED DECEMBER 31,
USEFUL --------------------- JUNE 30,
LIVES 1995 1996 1997
--------- ---------- ---------- -----------
(UNAUDITED)
<S> <C> <C> <C> <C>
Machinery and equipment............ 5 years $ 773,680 $ 834,769 $ 958,305
Vehicles........................... 5 years 195,853 175,396 139,232
Office furniture and equipment..... 7 years 579,504 626,316 634,030
Data processing equipment.......... 5 years 755,879 991,424 1,075,190
Communication equipment............ 5 years 113,419 139,333 117,716
Leasehold improvements............. 9 years 333,076 391,851 483,613
---------- ---------- ----------
2,751,411 3,159,089 3,408,086
Less accumulated depreciation and
amortization...................... 1,379,130 1,505,718 1,663,114
---------- ---------- ----------
$1,372,281 $1,653,371 $1,744,972
========== ========== ==========
</TABLE>

6. REAL ESTATE HELD FOR INVESTMENT

During 1995, the Company purchased certain real property which was not
intended to be used in business operations. The property is encumbered with
debt. The debt service payments are calculated using an amortization period of
30 years with interest at 7.88%. Monthly payments, including interest, are
$3,000 with the remaining balance due in full in October 2000. The balances of
the net book value and long-term debt of the real estate held for investment
are as follows:

<TABLE>
<CAPTION>
DECEMBER 31,
------------------ JUNE 30,
1995 1996 1997
-------- -------- -----------
(UNAUDITED)
<S> <C> <C> <C>
Cost basis...................................... $560,000 $583,066 $ 583,066
Loss reserve.................................... (50,000) (75,000) (172,000)
-------- -------- ---------
Net book value................................ $510,000 $508,066 $ 411,066
======== ======== =========
Long-term debt.................................. $401,664 $398,149 $ 396,285
======== ======== =========
</TABLE>

F-58
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

7. NOTE PAYABLE TO BANK

The note payable to bank represents the outstanding balance on a $6,000,000
revolving line of credit with interest at the bank's prime rate plus .75%. The
weighted average interest rate for December 31, 1995, 1996 and June 30, 1997
was 9.83%, 9.15% and 9.27%, respectively. The line of credit is subject to
annual renewal. The note is collateralized by receivables and inventory, and
is guaranteed by the executive officers. The Company is required under the
agreement to maintain certain financial covenants. These financial covenants
include current ratio and tangible net worth requirements, fixed asset
addition restrictions, dividend payment restrictions, and certain restrictions
regarding changes in ownership.

8. LONG-TERM DEBT

Long-term debt consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31,
----------------- JUNE 30,
1995 1996 1997
-------- -------- -----------
(UNAUDITED)
<S> <C> <C> <C>
Note payable to bank, due in monthly installments
of $8,000 plus interest at prime plus 1%,
collateralized by equipment..................... $352,000 $456,000 $408,000
Note payable, paid in full during 1996........... 45,570 -- --
Note payable related to real estate (see Note 6). 401,664 398,149 396,285
-------- -------- --------
799,234 854,149 804,285
Less current portion............................. 100,136 96,000 96,000
-------- -------- --------
$699,098 $758,149 $708,285
======== ======== ========
</TABLE>

The aggregate maturities of the long-term debt for future years ending June
30 are as follows (unaudited):

9. INCOME TAXES

The income tax provision consists of:

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
---------------------------- -----------------------
1994 1995 1996 1996 1997
-------- -------- -------- ----------- -----------
(UNAUDITED) (UNAUDITED)
<S> <C> <C> <C> <C> <C>
Current.................... $211,000 $333,038 $214,000 $173,859 $660,001
Deferred................... (9,000) (67,000) 43,000 (81,000) (91,000)
-------- -------- -------- -------- --------
$202,000 $266,038 $257,000 $ 92,859 $569,001
======== ======== ======== ======== ========
</TABLE>

F-59
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

Total income tax expense differs from the amounts computed by applying the
United States statutory income tax rate to pretax income as a result of the
following:

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
----------------------------------------- --------------------------
1994 % 1995 % 1996 % 1996 % 1997 %
-------- ---- -------- ---- -------- ---- ------- ---- -------- ----
(UNAUDITED) (UNAUDITED)
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Tax provision at
statutory rate......... $178,240 34.0 $222,624 34.0 $218,184 34.0 $70,253 34.0 $521,208 34.0
Increase (reduction) in
income taxes resulting
from:
State income taxes..... 3,200 0.6 2,600 0.4 6,600 1.0 3,300 1.6 10,800 0.7
Meals and
entertainment......... 18,100 3.5 22,800 3.5 23,800 3.7 11,900 5.8 13,600 0.9
Other non-deductible
expenses.............. 2,210 0.4 18,014 2.8 5,600 0.9 5,800 2.8 2,800 0.2
Other.................. 250 -- -- -- 2,816 0.4 1,606 0.8 20,593 1.3
-------- ---- -------- ---- -------- ---- ------- ---- -------- ----
$202,000 38.5 $266,038 40.6 $257,000 40.0 $92,859 44.9 $569,001 37.1
======== ==== ======== ==== ======== ==== ======= ==== ======== ====
</TABLE>

The components of the deferred income tax assets and liabilities are as
follows:

<TABLE>
<CAPTION>
DECEMBER 31,
------------------ JUNE 30,
1995 1996 1997
-------- -------- -----------
(UNAUDITED)
<S> <C> <C> <C>
Deferred tax assets:
Warranty reserve.............................. $ 44,000 $ 45,000 $ 41,000
Allowance for doubtful accounts............... 56,000 48,000 51,000
Loss on sale reserve.......................... 17,000 26,000 58,000
Deferred Compensation......................... 121,000 65,000 65,000
Other......................................... -- 18,000 60,000
-------- -------- --------
Total deferred income tax asset............. 238,000 202,000 275,000
-------- -------- --------
Deferred tax liabilities:
Contracts in progress......................... (17,000) (36,000) (8,000)
Depreciation.................................. (73,000) (61,000) (71,000)
-------- -------- --------
Total deferred income tax liability......... (90,000) (97,000) (79,000)
-------- -------- --------
Net deferred income taxes................... $148,000 $105,000 $196,000
======== ======== ========
</TABLE>

10. ACCRUED LIABILITIES

The accrued liabilities consists of:

<TABLE>
<CAPTION>
DECEMBER 31,
--------------------- JUNE 30,
1995 1996 1997
---------- ---------- -----------
(UNAUDITED)
<S> <C> <C> <C>
Payroll....................................... $1,222,692 $1,326,845 $1,826,734
Payroll and business taxes.................... 564,366 358,047 550,807
Other......................................... 247,501 265,413 224,794
---------- ---------- ----------
$2,034,559 $1,950,305 $2,602,335
========== ========== ==========
</TABLE>

F-60
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

11. COMMITMENTS

The Company conducts its operation from facilities which are leased from an
affiliated entity. The lease was amended on August 18, 1997 resulting in
increased rental payments, which now expire July 2007. The lease modifications
are reflected in the schedule below. The Company also leases vehicles and
facilities from unrelated companies under agreements expiring at various times
through 2001. The Company accounts for these leases as operating leases.
Aggregate minimum annual lease payments are as follows (unaudited):

<TABLE>
<CAPTION>
YEARS ENDING RELATED
JUNE 30, PARTY OTHER TOTAL
------------ ---------- ---------- ----------
<S> <C> <C> <C>
1998......................................... $ 418,000 $ 626,000 $1,044,000
1999......................................... 475,000 550,000 1,025,000
2000......................................... 475,000 411,000 886,000
2001......................................... 475,000 228,000 703,000
2002......................................... 475,000 60,000 535,000
Thereafter................................... 2,177,000 -- 2,177,000
---------- ---------- ----------
$4,495,000 $1,875,000 $6,370,000
========== ========== ==========

Rental expense under operating leases:

<CAPTION>
YEARS ENDING RELATED
DECEMBER 31, PARTY OTHER TOTAL
------------ ---------- ---------- ----------
<S> <C> <C> <C>
1994......................................... $ 380,000 $ 511,000 $ 891,000
1995......................................... 380,000 685,000 1,065,000
1996......................................... 380,000 785,000 1,165,000
<CAPTION>
PERIOD ENDING
JUNE 30,
-------------
<S> <C> <C> <C>
1996 (unaudited)............................. $ 190,000 $ 433,000 $ 623,000
1997 (unaudited)............................. 190,000 446,000 636,000
</TABLE>

12. RELATED PARTY BALANCES AND TRANSACTIONS

Notes Payable

During 1996, the note payable to shareholder was paid in full, which
included interest payments of $57,000.

Receivables

These balances represent short-term loans granted by the company to
shareholders and employees not incurred in the ordinary course of business.
The receivables are unsecured.

Leases

As further described in Note 11, the Company leases its main plant and
office facilities from the Company's President.

F-61
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

13. EMPLOYEE BENEFIT PLANS

Pension Plan

The Company contributes monthly to several union-sponsored pension plans for
the benefit of most hourly employees. Such contributions aggregated
approximately $2,230,000, $998,000 and $510,000 in 1996, 1995 and 1994,
respectively, and $1,241,000 and $1,170,000 for the period ending June 30,
1997 and 1996 (unaudited), respectively.

ESOP

The Company has established an employee stock ownership plan (ESOP) which
permits participation by eligible nonunion employees. Contributions are
determined at the discretion of the Board of Directors. ESOP expense amounted
to $100,000, $400,000 and $400,000 in 1996, 1995 and 1994, respectively. There
were no contributions for the periods ending June 30, 1997 and 1996.
Subsequent to the sale of the Company to GroupMAC (see Note 2), the ESOP plan
will be terminated.

401(k)

The Company sponsors a 401(k) salary savings plan for the benefit of all
eligible union and nonunion employees. All contributions to the plan are
elective by the participants. Matching contributions amounted to $27,371,
$29,000 and $26,400 in 1996, 1995 and 1994, respectively, and $88,262 and
$14,430 for the period ending June 30, 1997 and 1996 (unaudited),
respectively.

Stock Options

In 1989, several key employees were granted options to purchase 25,000
shares of common stock at fair market value at the date of grant of $20 per
share. The options vest and become exercisable in substantially equal annual
amounts through December 1998. Unexercised options expire one year after
becoming vested or 90 days following termination of employment for reasons
other than death or disability, if earlier. Unexercised options may be
extended to a maximum of two years after becoming vested with the approval of
the Board of Directors.

During 1995, the Company granted options to six employees to purchase 2,000
shares each of common stock at $31.97 per share, the fair market value at the
date of grant. These options are exercisable at the rate of 200 shares
annually through June 2004. During 1997, the Company amended the plan and
granted options to three additional employees to purchase shares of common
stock at $42.05 per share, the fair market value at the date of grant.

F-62
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

The following table shows changes in stock options outstanding:

<TABLE>
<CAPTION>
INCENTIVE STOCK OPTIONS
-----------------------------
AUTHORIZED GRANTED AVAILABLE PRICE
---------- ------- --------- ------------
<S> <C> <C> <C> <C>
Balance, December 31, 1994............ 80,000 19,469* 52,100 $20.00
Creation of new plan................ 20,000 -- 20,000
Granted............................. -- 12,000 (12,000) $31.97
Exercised........................... -- (4,702) -- $20 to 26.16
Canceled............................ -- (975) -- --
------- ------ -------
Balance, December 31, 1995............ 100,000 25,792* 60,100 $20 to 31.97
Exercised........................... -- (3,977) -- $20 to 31.97
------- ------ -------
Balance, December 31, 1996............ 100,000 21,815* 60,100 $20 to 31.97
Granted............................. -- 5,000 (5,000) $42.05
Exercised........................... -- (1,800) -- $20 to 42.05
------- ------ -------
Balance, June 30, 1997 (unaudited).... 100,000 25,015* 55,100 $20 to 42.05
======= ====== =======
</TABLE>
- --------
* At the periods ended, the cumulative number of options vested were as
follows (unaudited):

<TABLE>
<S> <C>
December 31, 1994................................................... 5,444
December 31, 1995................................................... 5,444
December 31, 1996................................................... 5,444
June 30, 1997....................................................... 2,777
</TABLE>

Upon successful completion of the sale of MMI, all options in the key
employees plan will be vested and exercised. The employee plan will be
eliminated.

Incentive Compensation Plan

During 1995, the Board of Directors established an Incentive Compensation
Plan (ICP) on behalf of executive management. The ICP provides that a portion
of net income, in excess of an established rate of return on equity, be
expensed as incentive compensation. The 1996 and 1995 incentive compensation
expense is $10,000 and $710,000, respectively. There was no expense for the
period ending June 30, 1997 and 1996. The deferred portion at December 31,
1996 and 1995 of $190,000 and $355,000 is payable in future years depending on
operating results of the Company. In the event of operating losses, the
deferred pool will be reduced by the lesser of the operating loss, or the
deferred pool. Participation in the ICP is subject to certain employment and
vesting provisions. The deferred amounts are subordinated to bank and surety
credits.

14. CONCENTRATIONS OF CREDIT RISK

Financial instruments which potentially subject the Company to
concentrations of credit risk consist of receivables and costs and earnings in
excess of billings on uncompleted contracts. Concentrations of credit risk
with respect to billed and unbilled receivables are limited due to the large
number of customers comprising the Company's customer base. The Company
generally does not require collateral, but in most cases can place liens
against the property constructed if a default takes place.

15. SIGNIFICANT CUSTOMERS

During the period ending June 30, 1997, the Company had $17,706,000 or 45%
of the periods revenues, and $6,840,000 or 45% of the ending accounts
receivable from two customers, which represents contracts on four different
jobs.

F-63
<PAGE>

MACDONALD-MILLER INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

16. SUPPLEMENTAL CASH FLOW INFORMATION

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
-------------------------- -----------------------
1994 1995 1996 1996 1997
-------- -------- -------- ----------- -----------
(UNAUDITED) (UNAUDITED)
<S> <C> <C> <C> <C> <C>
Cash paid during the year
for:
Income taxes............. $427,105 $370,000 $405,300 $200,000 $150,000
======== ======== ======== ======== ========
Interest................. $295,299 $405,200 $593,039 $275,518 $258,159
======== ======== ======== ======== ========
</TABLE>

F-64
<PAGE>

INDEPENDENT AUDITORS' REPORT

To the Board of Directors of
Masters, Inc.
Gaithersburg, Maryland

We have audited the accompanying balance sheets of Masters, Inc. as of
December 31, 1995, December 31, 1996 and June 30, 1997, and the related
statements of operations, shareholders' equity and cash flows for each of the
three years in the period ended December 31, 1996 and for the six month period
ended June 30, 1997. These financial statements are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements based on our audits.

In our opinion, such financial statements present fairly, in all material
respects, the financial position of Masters, Inc., as of December 31, 1995,
December 31, 1996 and June 30, 1997, and the results of its operations and its
cash flows for each of the three years in the period ended December 31, 1996
and for the six month period ended June 30, 1997 in conformity with generally
accepted accounting principles.

DELOITTE & TOUCHE LLP

Washington, D.C.
July 24, 1997

F-65
<PAGE>

MASTERS, INC.

BALANCE SHEETS

<TABLE>
<CAPTION>
DECEMBER 31, DECEMBER 31, JUNE 30,
1995 1996 1997
ASSETS ------------ ------------ -----------
<S> <C> <C> <C>
CURRENT ASSETS:
Cash and cash equivalents.............. $ 535,255 $ 670,776 $ 637,330
Accounts receivable, less allowance for
doubtful accounts of $50,000, $99,290
and $257,839, respectively............ 6,257,622 6,859,307 6,859,621
Costs and estimated earnings in excess
of billings on uncompleted contracts.. 1,506,793 1,866,172 1,419,830
Inventories............................ 489,063 588,715 621,912
Prepaid expenses and other assets...... 50,166 48,829 70,818
----------- ----------- -----------
Total current assets................. 8,838,899 10,033,799 9,609,511
PROPERTY AND EQUIPMENT, net.............. 590,229 625,125 609,719
OTHER NONCURRENT ASSETS.................. 673,570 673,570 673,570
----------- ----------- -----------
Total assets......................... $10,102,698 $11,332,494 $10,892,800
=========== =========== ===========
<CAPTION>
LIABILITIES AND SHAREHOLDER'S EQUITY
<S> <C> <C> <C>
CURRENT LIABILITIES:
Short-term borrowings and current
maturities of long-term debt.......... $ 1,406,634 $ 1,979,616 $ 1,069,777
Accounts payable....................... 1,781,218 1,761,200 2,152,392
Accrued expenses....................... 1,042,627 1,241,727 1,160,127
Billings in excess of costs and
estimated earnings on uncompleted
contracts............................. 721,159 627,052 850,687
Other current liabilities.............. 406,163 319,904 395,275
----------- ----------- -----------
Total current liabilities............ 5,357,801 5,929,499 5,628,258
LONG-TERM DEBT, net of current
maturities.............................. 827,492 800,238 764,932
COMMITMENTS AND CONTINGENCIES (Note 11)
SHAREHOLDER'S EQUITY:
Common stock, par value $1 per share;
50,000 shares authorized; 5,100 shares
issued and outstanding................ 5,100 5,100 5,100
Retained earnings...................... 3,912,305 4,597,657 4,494,510
----------- ----------- -----------
Total shareholder's equity........... 3,917,405 4,602,757 4,499,610
----------- ----------- -----------
Total liabilities and shareholder's
equity.............................. $10,102,698 $11,332,494 $10,892,800
=========== =========== ===========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-66
<PAGE>

MASTERS, INC.

STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
SIX MONTHS ENDED JUNE
YEAR ENDED DECEMBER 31, 30,
----------------------------------- -----------------------
1994 1995 1996 1996 1997
----------- ----------- ----------- ----------- -----------
(UNAUDITED)
<S> <C> <C> <C> <C> <C>
REVENUES................ $30,327,333 $35,160,419 $39,825,843 $18,278,841 $19,318,196
COST OF SERVICES........ 28,018,280 31,746,287 35,854,155 16,639,076 17,457,471
----------- ----------- ----------- ----------- -----------
Gross profit.......... 2,309,053 3,414,132 3,971,688 1,639,765 1,860,725
SELLING, GENERAL AND
ADMINISTRATIVE
EXPENSES............... 1,664,069 2,373,300 2,483,875 1,008,650 1,196,777
----------- ----------- ----------- ----------- -----------
Income from
operations........... 644,984 1,040,832 1,487,813 631,115 663,948
INTEREST EXPENSE........ 86,940 102,428 134,718 58,888 64,672
----------- ----------- ----------- ----------- -----------
NET INCOME.............. $ 558,044 $ 938,404 $ 1,353,095 $ 572,227 $ 599,276
=========== =========== =========== =========== ===========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-67
<PAGE>

MASTERS, INC.

STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
TOTAL
COMMON RETAINED SHAREHOLDER'S
STOCK EARNINGS EQUITY
------ ---------- -------------
<S> <C> <C> <C>
BALANCE, January 1, 1994....................... $5,100 $3,125,114 $3,130,214
Net income................................... 558,044 558,044
Dividends paid............................... (219,912) (219,912)
------ ---------- ----------
BALANCE, December 31, 1994..................... 5,100 3,463,246 3,468,346
Net income................................... 938,404 938,404
Dividends paid............................... (489,345) (489,345)
------ ---------- ----------
BALANCE, December 31, 1995..................... 5,100 3,912,305 3,917,405
Net income................................... 1,353,095 1,353,095
Dividends paid............................... (667,743) (667,743)
------ ---------- ----------
BALANCE, December 31, 1996..................... 5,100 4,597,657 4,602,757
Net income................................... 599,276 599,276
Dividends paid............................... (702,423) (702,423)
------ ---------- ----------
BALANCE, June 30, 1997......................... $5,100 $4,494,510 $4,499,610
====== ========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-68
<PAGE>

MASTERS, INC.

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
SIX MONTHS ENDED
YEAR ENDED DECEMBER 31, JUNE 30,
------------------------------------- -----------------------
1994 1995 1996 1996 1997
----------- ----------- ----------- ----------- -----------
(UNAUDITED)
<S> <C> <C> <C> <C> <C>
CASH FLOWS FROM
OPERATING ACTIVITIES:
Net income............. $ 558,044 $ 938,404 $ 1,353,095 $572,227 $ 599,276
Adjustments to
reconcile net income
to net cash provided
by (used in) operating
activities:
Depreciation........... 227,572 236,131 258,079 144,065 139,740
Loss(Gain) on disposal
of assets............. 20,576 8,480 2,223 -- (305)
Bad debt expense....... 425,602 626,625 434,250 100,000 169,741
Changes in operating
assets and
liabilities:
(Increase) decrease
in--
Notes and accounts
receivable.......... (517,095) (1,881,816) (1,035,935) (701,119) (170,055)
Costs and estimated
earnings in excess
of billings on
uncompleted
contracts........... (104,401) (278,186) (359,379) (667,721) 446,342
Inventories.......... 116,978 9,039 (99,652) 31,423 (33,197)
Prepaid expenses and
other assets........ (16,255) (17,607) 1,337 9,945 (21,989)
Increase (decrease)
in--
Accounts payable..... 380,925 120,221 (20,018) 326,793 391,192
Billings in excess of
costs and estimated
earnings on
uncompleted
contracts........... 43,624 209,499 (94,107) 26,087 223,635
Accrued salaries and
wages............... 2,662 16,042 17,360 58,963 40,363
Accrued profit
sharing and bonus... 143,148 256,752 189,431 (43,433) (162,176)
Accrued vacation
benefits............ 53,589 40,105 61,561 29,600 35,858
Payroll taxes and
withholding......... 22,291 (5,665) (69,252) 57,517 4,356
Other current
liabilities......... 238,406 80,814 (86,259) (52,484) 75,371
----------- ----------- ----------- -------- -----------
Net cash provided by
(used in) operating
activities............. 1,595,666 358,838 552,734 (108,137) 1,738,152
----------- ----------- ----------- -------- -----------
CASH FLOWS FROM
INVESTING ACTIVITIES:
Purchases of property
and equipment......... (284,326) (1,045,919) (295,198) (169,080) (130,357)
Proceeds from sale of
equipment............. 18,208 566 -- -- 6,327
----------- ----------- ----------- -------- -----------
Net cash used in
investing activities.. (266,118) (1,045,353) (295,198) (169,080) (124,030)
----------- ----------- ----------- -------- -----------
CASH FLOWS FROM
FINANCING ACTIVITIES:
Proceeds from long-term
debt.................. 160,000 1,604,746 659,234 944,234 --
Payments of long-term
debt.................. (1,237,110) (345,617) (113,506) (51,018) (945,145)
Dividends paid......... (219,912) (489,345) (667,743) (567,324) (702,423)
----------- ----------- ----------- -------- -----------
Net cash provided by
(used in) financing
activities............ (1,297,022) 769,784 (122,015) 325,892 (1,647,568)
----------- ----------- ----------- -------- -----------
NET INCREASE (DECREASE)
IN CASH AND CASH
EQUIVALENTS............ 32,526 83,269 135,521 48,675 (33,446)
CASH AND CASH
EQUIVALENTS, beginning
of period.............. 419,460 451,986 535,255 535,255 670,776
----------- ----------- ----------- -------- -----------
CASH AND CASH
EQUIVALENTS, end of
period................. $ 451,986 $ 535,255 $ 670,776 $583,930 $ 637,330
=========== =========== =========== ======== ===========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-69
<PAGE>

MASTERS, INC.

NOTES TO FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

Masters, Inc. (the Company) is a Mechanical Contractor primarily engaged in
the installation of residential and commercial plumbing, heating, air
conditioning and sprinkler systems within a 100-mile radius of the Washington,
D.C. area.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

The interim financial statements for the six months ended June 30, 1996 are
unaudited, and certain information and footnote disclosures, normally included
in financial statements prepared in accordance with generally accepted
accounting principles, have been omitted. In the opinion of management, all
adjustments, consisting only of normal recurring adjustments, necessary to
fairly present the financial position, results of operations and cash flows
with respect to the interim financial statements, have been included. The
results of operations for the interim periods are not necessarily indicative
of the results for the entire fiscal year.

Use of Estimates

The preparation of financial statements in accordance with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reported period. Actual results could differ from these estimates.

Revenue Recognition

The Company reports revenues from long-term construction contracts in
progress based on the percentage-of-completion method of accounting and,
therefore, takes into account the costs, estimated earnings and revenues to
date on contracts not yet completed.

The amount of revenue recognized at the statement date is the portion of the
total contract price that the cost expended to date bears to the anticipated
final total cost, based on current estimates of the cost to complete. Revenue
recognized is not necessarily related to the progress billings to customers.

As contracts extend over one or more years, revisions in estimates of cost
and earnings during the course of the work are reflected in the accounting
period in which the facts which require the revision become known.

At the time a loss on a contract becomes known, the entire amount of the
estimated loss is recognized in the financial statements.

Cash and Cash Equivalents

The Company has a cash management system with its bank that provides for the
investment of excess cash balances. The bank transfers the Company's excess
cash balances daily to investments that are under the bank's control. At
December 31, 1995, December 31, 1996 and June 30, 1997, the balances invested
under the cash management system were $1,294,005, $1,198,620 and $1,106,523,
respectively. The Company considers its investments with initial maturities of
less than 90 days to be cash equivalents.

F-70
<PAGE>

MASTERS, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

Inventories

Inventories consist primarily of purchased materials and supplies.
Inventories are stated at the lower of cost or market with cost determined on
a first-in, first-out basis.

Property and Equipment

Property and equipment is stated at cost. Depreciation is computed by the
straight-line method based on the estimated useful lives of the assets.
Leasehold improvements are depreciated over the lesser of the remaining lease
term or the estimated useful life of the asset. Expenditures for repairs and
maintenance are charged to expense when incurred. Expenditures for major
renewals and betterments, which extend the useful lives of existing equipment,
are capitalized and depreciated. Upon retirement or disposition of property or
equipment, the cost and related accumulated depreciation are removed from the
accounts and any resulting gain or loss is recognized in the statement of
operations.

Warranty Costs

The Company provides one to two year warranties on their contracts. At
December 31, 1995, December 31, 1996 and June 30, 1997, the Company's warranty
reserve was $80,000, $159,000 and $192,388, respectively.

Income Taxes

The Company has elected to be taxed under Subchapter S of the Internal
Revenue Code. Accordingly, the current taxable income of the Company is
taxable to the shareholder who is responsible for the payment of taxes
thereon.

New Accounting Pronouncement

Effective January 1, 1996, the Company adopted SFAS No. 121, "Accounting for
the Impairment of Long Lived Assets and for Long-Lived Assets to be Disposed
Of." Accordingly, in the event that facts and circumstances indicate that
property and equipment, and intangible or other assets, may be impaired, an
evaluation of recoverability would be performed. If an evaluation is required,
the estimated future undiscounted cash flows associated with the asset are
compared to the asset's carrying amount to determine if a write-down to market
value is necessary. Adoption of this standard did not have a material effect
on the financial position or results of operations of the Company.

Reclassification

Certain amounts reported in the 1995 and 1996 financial statements have been
reclassified to conform with the June 30, 1997 presentation.

F-71
<PAGE>

MASTERS, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

3. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Accounts receivable consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31, DECEMBER 31, JUNE 30,
1995 1996 1997
------------ ------------ ----------
<S> <C> <C> <C>
Trade accounts receivable.......... $5,337,781 $6,064,444 $5,919,387
Retentions......................... 288,552 226,646 521,686
Shareholder........................ 224,658 238,579 245,539
Service............................ 63,332 50,487 62,057
Trade notes receivable............. 57,672 36,557 25,366
Other.............................. 335,627 341,884 343,425
---------- ---------- ----------
$6,307,622 $6,958,597 $7,117,460
Allowance for sales adjustments and
doubtful accounts................. (50,000) (99,290) (257,839)
---------- ---------- ----------
$6,257,622 $6,859,307 $6,859,621
========== ========== ==========
</TABLE>

Accrued expenses consists of the following:

<TABLE>
<S> <C> <C> <C>
Accrued salaries and wages.............. $ 195,815 $ 213,175 $ 253,538
Accrued profit sharing and bonus........ 415,837 605,268 443,092
Accrued vacation benefits............... 307,523 369,084 404,941
Payroll taxes and withholding........... 123,452 54,200 58,556
---------- ---------- ----------
$1,042,627 $1,241,727 $1,160,127
========== ========== ==========
</TABLE>

4. COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS

A summary of the status of uncompleted contracts is as follows:

<TABLE>
<CAPTION>
DECEMBER 31, DECEMBER 31, JUNE 30,
1995 1996 1997
------------ ------------ ------------
<S> <C> <C> <C>
Costs incurred................. $ 37,064,954 $ 62,376,659 $ 58,243,065
Estimated earnings recognized.. 15,929,952 26,073,509 24,889,245
------------ ------------ ------------
52,994,906 88,450,168 83,132,310
Less billings on contracts..... (52,209,272) (87,211,048) (82,563,167)
------------ ------------ ------------
$ 785,634 $ 1,239,120 $ 569,143
============ ============ ============

These costs and estimated earnings on uncompleted contracts are included in
the accompanying balance sheets under the following captions:

Costs and estimated earnings in
excess of billings on
uncompleted contracts......... $ 1,506,793 $ 1,866,172 $ 1,419,830
Billings in excess of costs and
estimated earnings on
uncompleted contracts......... (721,159) (627,052) (850,687)
------------ ------------ ------------
$ 785,634 $ 1,239,120 $ 569,143
============ ============ ============
</TABLE>

F-72
<PAGE>

MASTERS, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

5. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and
equipment are as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL DECEMBER 31, DECEMBER 31, JUNE 30,
LIVES 1995 1996 1997
---------- ------------ ------------ -----------
<S> <C> <C> <C> <C>
Leasehold improvements....... 2-7 years $ 215,396 $ 221,265 $ 223,012
Office furniture and
equipment................... 5-10 years 784,498 838,904 858,900
Automotive equipment......... 3-5 years 399,942 435,623 470,864
Construction machinery and
equipment................... 8-10 years 1,003,995 1,132,070 1,174,761
----------- ----------- -----------
2,403,831 2,627,862 2,727,537
Less accumulated
depreciation................ (1,813,602) (2,002,737) (2,117,818)
=========== =========== ===========
$ 590,229 $ 625,125 $ 609,719
=========== =========== ===========
</TABLE>

6. OTHER NONCURRENT ASSETS

During the fourth quarter of 1995, the Company purchased three model homes
from a customer for $673,570 in order to settle certain accounts receivable
balances. The Company is not in the real estate business, and intends to sell
this real estate. Management believes that the carrying value of these homes
approximates their net realizable value based on recent sales in this
development.

The related mortgage note totaling $630,462, $619,627 and $612,915 as of
December 31, 1995, December 31, 1996 and June 30, 1997, respectively, matures
October 5, 2000, and is payable in monthly installments of $5,843 including
principal and interest at 9.25%. The operating results of the investment are
not significant.

Maturities of the mortgage note are as follows:

<TABLE>
<CAPTION>
YEAR ENDING JUNE 30,
--------------------
<S> <C>
1998........................................................... $ 14,159
1999........................................................... 15,525
2000........................................................... 17,024
2001........................................................... 566,207
--------
$612,915
========
</TABLE>

7. SHORT AND LONG-TERM DEBT

The Company has a revolving loan agreement with a bank, which as of December
31, 1995, December 31, 1996 and June 30, 1997, provided for maximum borrowings
of $3,000,000, $3,500,000 and $3,500,000, respectively. The agreement has a
maturity date of September 1, 1997. Borrowings under this agreement at
December 31, 1995, December 31, 1996 and June 30, 1997, amounted to
$1,300,000, $1,890,000 and $1,000,000, respectively, with interest at 8.5
percent at December 31, 1995, 8.25 percent at December 31, 1996 and 8.5
percent at June 30, 1997. All advances under the revolving note are cross-
collateralized with the notes and mortgage payable discussed below. The debt
agreements require among other provisions, the maintenance of certain levels
of net worth and working capital, and place restrictions on cash dividends.

The Company's long term debt for December 31, 1995, December 31, 1996 and
June 30, 1997, was $303,664, $270,227 and $221,794, respectively.

F-73
<PAGE>

MASTERS, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

Long-term debt consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31, DECEMBER 31, JUNE 30,
1995 1996 1997
------------ ------------ --------
<S> <C> <C> <C>
7.75%, due 2/28/97, secured by equipment... $ 44,484 $ 9,198 $ --
8.0%, due 6/25/97, secured by equipment.... 33,582 12,999 --
8.25%, due 11/22/00, secured by equipment.. 200,002 166,431 148,539
-------- -------- --------
Total Notes Payable...................... 278,068 188,628 148,539
-------- -------- --------
Capitalized lease, payable in monthly
installments, interest at 15.35%, due
6/30/00, secured by equipment............. 25,596 21,321 18,928
Capitalized lease, payable in monthly
installments, interest at 9.07%, due
4/30/01, secured by equipment............. $ -- $ 60,278 $ 54,327
-------- -------- --------
Total Capitalized Leases................. 25,596 81,599 73,255
-------- -------- --------
Total long-term debt................... 303,664 270,227 221,794
-------- -------- --------
Less current maturities................ (94,303) (76,095) (55,618)
-------- -------- --------
$209,361 $194,132 $166,176
======== ======== ========
</TABLE>

The aggregate maturities of the long-term debt as of June 30, 1997 are as
follows:

Total borrowings under the notes payable with the bank are collateralized by
accounts receivable, inventory, and property and equipment of the Company, the
personal guarantee of the shareholder, and an assignment of the proceeds of a
$2,000,000 life insurance policy on the life of the shareholder.

Future minimum lease payments under capital leases together with the present
value of the net minimum lease payments are as follows:

<TABLE>
<CAPTION>
YEAR ENDING JUNE 30,
--------------------
<S> <C>
1998........................................................... $25,183
1999........................................................... 25,183
2000........................................................... 25,183
2001........................................................... 12,954
-------
Total minimum lease payments..................................... 88,503
Less: Amount representing interest............................... (15,248)
-------
Present value of net minimum lease payments...................... 73,255
Less: Current Portion............................................ (18,111)
-------
Long-term Portion................................................ $55,144
=======
</TABLE>

Interest paid by Company on short and long-term debt was as follows:

<TABLE>
<S> <C>
Year ending December 31, 1994................................... $106,083
Year ending December 31, 1995................................... 115,031
Year ending December 31, 1996................................... 157,435
Six months ending June 30, 1997................................. 77,445
</TABLE>

F-74
<PAGE>

MASTERS, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

8. LEASES

The Company occupies warehouse and office space which is subject to
operating leases. These leases provide for the following annual rental
payments:

<TABLE>
<CAPTION>
YEAR ENDING JUNE 30,
--------------------
<S> <C>
1998......................................................... $ 283,558
1999......................................................... 280,881
2000......................................................... 278,094
2001......................................................... 289,008
2002......................................................... 296,522
Thereafter................................................... 165,858
----------
$1,593,921
==========
</TABLE>

Total rent expense was $285,353, $268,419 and $293,074 for the years ended
December 31, 1994, December 31, 1995 and December 31, 1996, respectively. Rent
expense was $140,766 for the six months ended June 30, 1997.

Office furniture and equipment at December 31, 1995, December 31, 1996 and
June 30, 1997, includes $27,500, $96,734 and $96,734, respectively, of
equipment under leases that have been capitalized. Accumulated depreciation
for such equipment was $2,750 at December 31, 1995, $17,940 at December 31,
1996 and $27,613 at June 30, 1997.

9. RELATED PARTY TRANSACTIONS

On January 22, 1997, the Company entered into a partnership with the
shareholder of the Company for the lease of warehouse and office space. The
lease requires an annual base rental of $233,700. The lease extends through
February 1, 2003. Rent increases on each anniversary at the rate of 4%. All
expenses except base period real estate taxes are paid by the Company. Total
rental expense under this lease for the six months ended June 30, 1997, was
$97,375.

The Company leases equipment from a company owned by the shareholder and an
officer of the Company. Expense for this equipment was $210,000, $199,925, and
$207,972, for the years ended December 31, 1994, December 31, 1995 and
December 31, 1996, respectively. Expense for this equipment was $100,803 for
the six months ended June 30, 1997.

The Company makes a monthly payment for advertising to a company owned by
the shareholder of the Company. Payments to this company were $0 for the year
ended December 31, 1994, and approximately $48,000 for each year ending
December 31, 1995 and December 31, 1996. Payments were $24,000 for the six
months ended June 30, 1997.

The Company has an outstanding receivable of $131,633 as of December 31,
1995, December 31, 1996 and June 30, 1997 from a company owned by the
shareholder of the Company.

The shareholder of the Company owes the Company $224,658, $238,579 and
$245,539 in notes receivable as of December 31, 1995, December 31, 1996 and
June 30, 1997, respectively. The balance includes accrued interest at rates
ranging from 7.0% to 8.5% and the notes are payable on demand.

F-75
<PAGE>

MASTERS, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

10. EMPLOYEE BENEFIT PLANS

The Company adopted a qualified Profit-Sharing and 401(k) Retirement Plan in
December 1994. The Plan covers substantially all full time employees. The
401(k) portion of the Plan was effective in January 1995. Contributions are
determined based upon the discretion of the Company's Board of Directors. The
Company contributed $120,500 and $181,915 to the plan for the years ended
December 31, 1995 and December 31, 1996, respectively. A contribution of
$70,292 was made for the six months ended June 30, 1997. A favorable
determination letter dated January 29, 1996, has been obtained from the
Internal Revenue Service.

11. COMMITMENTS AND CONTINGENCIES

The Company is involved in various claims and legal actions arising in the
ordinary course of business. In the opinion of management, the ultimate
disposition of these matters will not have a material adverse effect on the
Company's combined financial position, results of operations or liquidity.

12. FINANCIAL INSTRUMENTS

The Company's financial instruments consist of cash and cash equivalents,
and short and long-term debt. The Company believes that the carrying value of
these instruments on the accompanying balance sheets approximate their fair
value.

13. SUBSEQUENT EVENT

In April 1997, the Company signed a letter of intent with Group Maintenance
America Corp. (GroupMAC), whereby GroupMAC will acquire the Company in a
merger transaction for a combination of cash and common shares of GroupMAC
concurrent with the consummation of the initial public offering of the common
stock of GroupMAC, subject to certain conditions including the negotiation of
definitive agreements and approval by Directors of both companies.

F-76
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
K & N Plumbing, Heating and Air Conditioning, Inc.

We have audited the accompanying balance sheet of K & N Plumbing, Heating
and Air Conditioning, Inc. as of March 31, 1997, and the related statements of
operations, shareholders' equity and cash flows for the year then ended. These
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audit.

We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audit provides a reasonable basis
for our opinion.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of K & N Plumbing, Heating
and Air Conditioning, Inc. as of March 31, 1997, and the results of its
operations and its cash flows for the year then ended in conformity with
generally accepted accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
May 20, 1997, except for
note 12, for which the
date is June 1, 1997

F-77
<PAGE>

K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.

BALANCE SHEET

<TABLE>
<CAPTION>
MARCH 31,
1997
----------
ASSETS
<S> <C>
CURRENT ASSETS:
Accounts receivable, net of allowance of $98,098....................... $3,410,659
Inventories............................................................ 254,135
Other receivables...................................................... 191,056
Prepaid expenses and other current assets.............................. 155,270
Deferred income taxes.................................................. 109,892
----------
Total current assets................................................. 4,121,012
PROPERTY AND EQUIPMENT, net.............................................. 1,483,869
OTHER NONCURRENT ASSETS.................................................. 20,895
----------
Total assets......................................................... $5,625,776
==========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
Short-term borrowings and current maturities of long-term debt......... $1,285,189
Accounts payable....................................................... 1,399,235
Accrued expenses....................................................... 627,263
Deferred service contract revenue...................................... 27,970
Income taxes payable................................................... 120,187
----------
Total current liabilities............................................ 3,459,844
LONG-TERM DEBT, net of current maturities................................ 305,685
DEFERRED INCOME TAXES.................................................... 252,091
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock, $1 par value; 100,000 shares authorized;
5,000 shares issued and outstanding................................... 5,000
Retained earnings...................................................... 1,603,156
----------
Total shareholders' equity........................................... 1,608,156
----------
Total liabilities and shareholders' equity........................... $5,625,776
==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-78
<PAGE>

K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.

STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
YEAR ENDED
MARCH 31,
1997
-----------
<S> <C>
REVENUES........................................................... $24,279,160
COST OF SERVICES................................................... 20,704,965
-----------
Gross profit..................................................... 3,574,195
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES....................... 2,638,037
-----------
Income from operations........................................... 936,158
OTHER INCOME (EXPENSE):
Interest expense................................................. (97,390)
Other............................................................ (3,222)
-----------
Income before income tax provision............................. 835,546
INCOME TAX PROVISION............................................... 314,764
-----------
NET INCOME......................................................... $ 520,782
===========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-79
<PAGE>

K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.

STATEMENT OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
TOTAL
COMMON RETAINED SHAREHOLDERS'
STOCK EARNINGS EQUITY
------ ---------- -------------
<S> <C> <C> <C>
BALANCE, March 31, 1996......................... $5,000 $1,082,374 $1,087,374
Net income.................................... -- 520,782 520,782
------ ---------- ----------
BALANCE, March 31, 1997......................... $5,000 $1,603,156 $1,608,156
====== ========== ==========
</TABLE>

The accompanying notes are an integral part of the financial statements.

F-80
<PAGE>

K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.

STATEMENT OF CASH FLOWS

<TABLE>
<CAPTION>
YEAR
ENDED
MARCH 31,
1997
---------
<S> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income......................................................... $ 520,782
Adjustments to reconcile net income to net cash provided by
operating activities:
Depreciation...................................................... 500,679
Loss on sales of property and equipment........................... 10,982
Deferred income taxes............................................. 79,621
Changes in operating assets and liabilities:
(Increase) decrease in--
Accounts receivable............................................. (566,374)
Inventories..................................................... (100,496)
Other receivables............................................... 141,343
Prepaid expenses and other current assets....................... 45,096
Other noncurrent assets......................................... (4,972)
Increase (decrease) in--
Accounts payable................................................ 71,813
Accrued expenses................................................ 11,445
Deferred service contract revenue............................... 27,970
Income taxes payable............................................ 112,851
---------
Net cash provided by operating activities..................... 850,740
---------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment................................ (661,326)
Proceeds from sales of property and equipment...................... 14,442
---------
Net cash used in investing activities......................... (646,884)
---------
CASH FLOWS FROM FINANCING ACTIVITIES:
Checks outstanding in excess of bank balance....................... (425,718)
Net borrowings on line of credit................................... 66,382
Principal payments on shareholder debt............................. (12,658)
Proceeds from issuance of installment debt......................... 479,093
Principal payments on installment debt............................. (310,955)
---------
Net cash used in financing activities......................... (203,856)
---------
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS................ --
CASH AND CASH EQUIVALENTS, beginning of year........................ --
---------
CASH AND CASH EQUIVALENTS, end of year.............................. $ --
=========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-81
<PAGE>

K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.

NOTES TO FINANCIAL STATEMENTS
MARCH 31, 1997

1. BUSINESS AND ORGANIZATION

K & N Plumbing, Heating and Air Conditioning, Inc., (the Company) is
primarily engaged in the business of installing plumbing, heating and air
conditioning systems for new single-family detached homes in the areas in and
around Dallas and Austin, Texas and Las Vegas, Nevada. In addition, the
Company is involved in the replacement and repair market.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Use of Estimates

Cash and Cash Equivalents

For purposes of the statement of cash flows, the Company considers all
highly liquid investments with original maturities of three months or less to
be cash equivalents. Cash payments for interest and taxes were $99,838 and
$114,955, respectively, for the year ended March 31, 1997.

Revenue Recognition

Revenues from work orders are recognized as services are performed. Revenues
on service and maintenance contracts are recognized over the life of the
contract. Revenues from construction contracts are recognized on a percentage
of completion basis, using the cost-to-cost method. Provisions for estimated
losses on uncompleted contracts are made in the period in which such losses
are determined. Changes in job performance, job conditions, and estimated
profitability may result in revisions to costs and revenues and are recognized
in the period in which the revisions are determined.

Inventories

Inventories consist primarily of purchased materials and supplies. The
inventory is valued at the lower of cost or market, with cost determined on a
first-in, first-out (FIFO) basis.

Property and Equipment

Property and equipment is stated at cost. Depreciation is computed using the
straight-line method over the useful lives of the assets. Leasehold
improvements are amortized over the lesser of the remaining lease-term or the
estimated life of the asset.

Expenditures for repairs and maintenance are charged to expense when
incurred. Expenditures for major renewals and betterments, which extend the
useful lives of existing equipment, are capitalized and depreciated. Upon
retirement or disposition of property or equipment, the cost and related
accumulated depreciation are removed from the accounts and any resulting gain
or loss is recognized in the statement of operations.

F-82
<PAGE>

K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
Warranty Costs

The Company warrants labor for one to two years after installation of new
air conditioning and heating units. The Company generally warrants labor for
one year after servicing of existing air conditioning and heating units. A
reserve for warranty costs is recorded upon completion of installation or
service.

Income Taxes

New Accounting Pronouncement

Effective April 1, 1996, the Company adopted SFAS No. 121, Accounting for
the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed
Of. Accordingly, in the event that facts and circumstances indicate that
property and equipment, and intangible or other assets may be impaired, an
evaluation of recoverability would be performed. If an evaluation is required,
the estimated future undiscounted cash flows associated with the asset are
compared to the asset's carrying amount to determine if a write-down to market
value is necessary. Adoption of this standard did not have a material effect
on the financial position or results of operations of the Company.

3. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Prepaid expenses and other current assets consist of the following at March
31, 1997:

<TABLE>
<S> <C>
Prepaid expenses.................................................. $ 94,808
Due from employees................................................ 60,462
--------
$155,270
========
Accrued expenses consist of the following at March 31, 1997:
Accrued payroll and related expense............................... $242,845
Other accrued expenses............................................ 384,418
--------
$627,263
========
</TABLE>

4. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and
equipment at March 31, 1997 are as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL LIVES
------------
<S> <C> <C>
Machinery and equipment............................. 5--7 years $ 554,461
Service and other vehicles.......................... 5 years 2,239,457
Office equipment, furniture and fixtures............ 5--7 years 290,702
Leasehold improvements.............................. -- 290,875
-----------
3,375,495
Less accumulated depreciation....................... (1,891,626)
-----------
$ 1,483,869
===========
</TABLE>

F-83
<PAGE>

K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

5. SHORT- AND LONG-TERM DEBT

Short- and long-term debt consists of the following:

<TABLE>
<S> <C>
Credit facility in the amount of $1,000,000 with a bank, bearing
interest at prime plus 1.5%, secured by trade receivables and
inventory....................................................... $ 970,321
Equipment installation loans payable to banks and other financial
institutions, interest varying from 7.5% to 10.24%,
collateralized by certain equipment, payable in monthly
installments including interest, final installment due January
1998............................................................ 620,553
----------
Total short- and long-term debt.............................. 1,590,874
Less short-term borrowings and current maturities............... (1,285,189)
----------
$ 305,685
==========
</TABLE>

The Company had a revolving credit agreement with a bank to provide
borrowings up to $1,000,000. The agreement expires on August 30, 1997. The
revolving credit agreement was collateralized by accounts receivable,
inventories and the personal guarantee of the shareholder. The agreement
contained certain covenants with regard to minimum net worth and lending
limits of up to 80% of accounts receivable less than 60 days old. Borrowings
under the agreement in effect on March 31, 1997, bear interest at 10.0%, which
represents prime plus 1.5%. Borrowings outstanding at March 31, 1997 were
$970,321. The agreement was repaid in connection with the Company's
acquisition, see note 12.

The aggregate maturities of the short- and long-term debt as of March 31,
1997 are as follows:

6. INCOME TAXES

Income tax expense for the year ended March 31, 1997 consists of:

<TABLE>
<CAPTION>
CURRENT DEFERRED TOTAL
-------- -------- --------
<S> <C> <C> <C>
Federal............................................ $216,077 $73,166 $289,243
State.............................................. 19,066 6,455 25,521
-------- ------- --------
$235,143 $79,621 $314,764
======== ======= ========
</TABLE>

Total income tax expense differs from the amount computed by applying the
U.S. federal statutory income tax rate of 34% to income before income tax
provision as a result of the following:

<TABLE>
<S> <C>
Tax provision at statutory rate...................................... $284,086
Increase resulting from:
State income taxes, net of federal benefit......................... 16,844
Other.............................................................. 13,834
--------
$314,764
========
</TABLE>

F-84
<PAGE>

K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

The components of the deferred income tax assets and liabilities are as
follows:

<TABLE>
<S> <C>
Deferred income tax assets:
Warranty reserves.................................................. $ 41,440
Deferred service contract revenues................................. 10,349
Allowance for doubtful accounts.................................... 36,296
Vacation accrual................................................... 21,807
--------
Total deferred income tax asset.................................. 109,892
--------
Deferred income tax liabilities:
Depreciation....................................................... $112,936
Other.............................................................. 139,155
--------
Total deferred income tax liability.............................. 252,091
--------
Net deferred income tax liability................................ $142,199
========
</TABLE>

7. LEASES

The Company incurred rent expenses under operating leases of $137,351 for
the year ended March 31, 1997. Of such amount, $107,760 related to a facility
that is leased by the Company from its shareholder. Under the lease agreement,
the Company is to pay for all maintenance, certain taxes and insurance for the
facility.

Future minimum lease payments under noncancelable operating leases (with
initial or remaining lease terms in excess of one year) as of March 31, 1997
are as follows:

<TABLE>
<S> <C>
1998................................................................. $137,760
1999................................................................. 107,760
2000................................................................. 107,760
2001................................................................. 107,760
2002 and thereafter.................................................. 53,880
--------
$514,920
========
</TABLE>

8. EMPLOYEE BENEFIT PLAN

The Company maintains a voluntary 401(k) profit-sharing plan covering all
employees. Employees may choose to defer up to 15% of their compensation
during the Plan year, not to exceed Internal Revenue Service limitations, by
contributing to the Plan. The Company matches 50% of each employee's
contributions up to a maximum of 5% of the employee's gross earnings.
Contributions made by the Company of $57,400 were charged to operations in the
year ended March 31, 1997.

9. SALES TO SIGNIFICANT CUSTOMERS

During the year ended March 31, 1997, two customers accounted for
approximately 30% of the Company's revenues.

10. COMMITMENTS AND CONTINGENCIES

The Company is involved in various claims and legal actions arising in the
ordinary course of business. In the opinion of management, the ultimate
disposition of these matters will not have a material adverse effect on the
Company's financial position, results of operations or liquidity.

F-85
<PAGE>

K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

11. FINANCIAL INSTRUMENTS

The Company's financial instruments consist of cash and cash equivalents and
short- and long-term debt. The Company believes that the carrying value of
these instruments on the accompanying balance sheet approximates their fair
value.

12. SUBSEQUENT EVENT

Effective June 1, 1997, Group Maintenance America Corp. (GroupMAC) acquired
all the outstanding shares of the Company for a combination of cash, preferred
stock and common stock of GroupMAC. All of the preferred shares issued in
connection with the acquisition of the business will be redeemed for cash
concurrent with the consummation of the initial public offering of the common
stock of GroupMAC.

F-86
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
A-ABC Appliance, Inc. and
A-1 Appliance & Air Conditioning, Inc.:

We have audited the accompanying combined balance sheets of A-ABC Appliance,
Inc. and A-1 Appliance & Air Conditioning, Inc. (collectively referred to as
the Company) as of December 31, 1996 and May 31, 1997, and the related
combined statements of operations, shareholders' equity and cash flows for the
year ended December 31, 1996 and the five months ended May 31, 1997. These
combined financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these combined
financial statements based on our audits.

In our opinion, the combined financial statements referred to above present
fairly, in all material respects, the financial position of A-ABC Appliance,
Inc. and A-1 Appliance & Air Conditioning, Inc. as of December 31, 1996 and
May 31, 1997, and the results of its operations and its cash flows for the
year ended December 31, 1996 and the five months ended May 31, 1997 in
conformity with generally accepted accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
July 18, 1997

F-87
<PAGE>

A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.

COMBINED BALANCE SHEETS

<TABLE>
<CAPTION>
DECEMBER 31, MAY 31,
1996 1997
------------ ----------
<S> <C> <C>
ASSETS
CURRENT ASSETS:
Cash and cash equivalents............................ $ 760,291 $ 654,324
Accounts receivable.................................. 144,519 217,461
Other receivables.................................... 35,226 --
Inventories.......................................... 570,007 517,587
Due from related parties and employees............... 30,912 162,580
Prepaid expenses..................................... 13,289 57,090
---------- ----------
Total current assets............................... 1,554,244 1,609,042
PROPERTY AND EQUIPMENT, net............................ 905,447 702,310
GOODWILL, net of accumulated amortization of $9,195 and
$9,820, respectively.................................. 50,808 50,183
OTHER NONCURRENT ASSETS................................ 334,372 263,599
---------- ----------
Total assets....................................... $2,844,871 $2,625,134
========== ==========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
Current maturities of long-term debt................. $ 176,717 $ 168,425
Accounts payable..................................... 265,080 425,196
Accrued expenses..................................... 183,797 213,732
Due to related parties............................... 315,474 342,584
Deferred service contract revenue.................... 196,217 175,134
---------- ----------
Total current liabilities.......................... 1,137,285 1,325,071
LONG-TERM DEBT, net of current maturities.............. 844,549 779,511
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock......................................... 3,300 3,300
Additional paid-in capital........................... 304,140 304,140
Retained earnings.................................... 555,597 213,112
---------- ----------
Total shareholders' equity......................... 863,037 520,552
---------- ----------
Total liabilities and shareholders' equity......... $2,844,871 $2,625,134
========== ==========
</TABLE>

The accompanying notes are an integral part of these combined financial
statements.

F-88
<PAGE>

A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.

COMBINED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
FIVE MONTHS ENDED
YEAR ENDED MAY 31,
DECEMBER 31, ----------------------
1996 1996 1997
------------ ---------- ----------
(UNAUDITED)
<S> <C> <C> <C>
REVENUES.................................. $8,546,450 $3,382,901 $3,419,026
COST OF SERVICES.......................... 5,446,934 2,147,150 2,227,471
---------- ---------- ----------
Gross profit............................ 3,099,516 1,235,751 1,191,555
SELLING, GENERAL AND ADMINISTRATIVE
EXPENSES................................. 2,766,293 1,124,839 996,082
---------- ---------- ----------
Income from operations.................. 333,223 110,912 195,473
OTHER INCOME (EXPENSE):
Interest expense........................ (94,434) (36,628) (34,313)
Interest income......................... 10,653 1,619 3,702
Other................................... 779 (15,130) (7,760)
---------- ---------- ----------
NET INCOME................................ $ 250,221 $ 60,773 $ 157,102
========== ========== ==========
</TABLE>

The accompanying notes are an integral part of these combined financial
statements.

F-89
<PAGE>

A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.

COMBINED STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
ADDITIONAL TOTAL
COMMON PAID-IN RETAINED SHAREHOLDERS'
STOCK CAPITAL EARNINGS EQUITY
------ ---------- --------- -------------
<S> <C> <C> <C> <C>
BALANCE, December 31, 1995........... $3,300 $304,140 $ 305,376 $ 612,816
Net income......................... -- -- 250,221 250,221
------ -------- --------- ---------
BALANCE, December 31, 1996........... 3,300 304,140 555,597 863,037
Net income......................... -- -- 157,102 157,102
Distributions to shareholders...... -- -- (499,587) (499,587)
------ -------- --------- ---------
BALANCE, May 31, 1997................ $3,300 $304,140 $ 213,112 $ 520,552
====== ======== ========= =========
</TABLE>

The accompanying notes are an integral part of these combined financial
statements.

F-90
<PAGE>

A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.

COMBINED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
FIVE MONTHS ENDED
YEAR ENDED MAY 31,
DECEMBER 31, ---------------------
1996 1996 1997
------------ ----------- ---------
(UNAUDITED)
<S> <C> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income................................ $ 250,221 $ 60,773 $ 157,102
Adjustments to reconcile net income to net
cash
provided by (used in) operating
activities:
Depreciation and amortization........... 318,259 138,454 133,448
Gain from sales of property and
equipment.............................. (18,765) (18,765) --
Changes in operating assets and
liabilities:
(Increase) decrease in--
Accounts receivable................... (8,567) (194,850) (72,942)
Other receivables..................... (28,778) 1,611 35,226
Inventories........................... 17,073 (31,888) 52,420
Due from related parties and
employees............................ 1,703 6,000 (11,186)
Prepaid expenses...................... 40,965 (16,391) (43,801)
Other noncurrent assets............... (4,952) (4,391) 24,940
Increase (decrease) in--
Accounts payable...................... (33,128) 143,415 160,116
Accrued expenses...................... (120,496) 69,937 29,935
Due to related parties................ (43,945) (359,419) (315,474)
Deferred service contract revenue..... 36,714 94,838 (21,083)
--------- --------- ---------
Net cash provided by (used in)
operating activities............ 406,304 (110,676) 128,701
--------- --------- ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment....... (456,877) (277,614) (4,335)
Proceeds from sales of property and
equipment................................ 20,585 20,585 --
--------- --------- ---------
Net cash used in investing
activities.......................... (436,292) (257,029) (4,335)
--------- --------- ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt.............. 376,714 376,714 --
Payments of long-term debt................ (135,202) (71,677) (73,330)
Distributions to shareholders............. -- -- (157,003)
--------- --------- ---------
Net cash provided by (used in)
financing activities............ 241,512 305,037 (230,333)
--------- --------- ---------
NET INCREASE (DECREASE) IN CASH AND CASH
EQUIVALENTS............................... 211,524 (62,668) (105,967)
CASH AND CASH EQUIVALENTS, beginning of
period.................................... 548,767 548,767 760,291
--------- --------- ---------
CASH AND CASH EQUIVALENTS, end of period... $ 760,291 $ 486,099 $ 654,324
========= ========= =========
</TABLE>

The accompanying notes are an integral part of these combined financial
statements.

F-91
<PAGE>

A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

A-ABC Appliance, Inc. (A-ABC) and A-1 Appliance & Air Conditioning, Inc. (A-
1), (collectively referred to as the Company), are under common ownership. As
common control exists among the entities, the financial statements have been
combined for all periods presented. There have been no intercompany
transactions between the entities. A-ABC and A-1 are primarily engaged in the
installation and servicing of heating and air conditioning systems, as well as
home appliances, for residential and light commercial customers in the Dallas,
Texas area.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

The interim combined financial statements for the five months ended May 31,
1996 are unaudited, and certain information and footnote disclosures, normally
included in financial statements prepared in accordance with generally
accepted accounting principles, have been omitted. In the opinion of
management, all adjustments, consisting only of normal recurring adjustments,
necessary to fairly present the financial position, results of operations and
cash flows with respect to the combined interim financial statements, have
been included. The results of operations for the interim periods are not
necessarily indicative of the results of the entire fiscal year.

Use of Estimates

The preparation of combined financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

Revenue Recognition

Revenue is recognized upon completion of service. Revenues on service and
maintenance contracts are recognized over the life of the contract.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid investments with original maturities of three months or less to
be cash equivalents. Cash payments for interest were $92,052 and $34,313 for
the year ended December 31, 1996 and the five months ended May 31, 1997,
respectively.

Inventories

Inventories consist primarily of purchased materials and supplies. The
Company uses the first-in, first-out (FIFO) cost method to value its
inventories.

Property and Equipment

F-92
<PAGE>

A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

Upon retirement or disposition of property or equipment, the cost and related
accumulated depreciation are removed from the accounts and any resulting gain
or loss is recognized in the statements of operations.

Income Taxes

The shareholders of the Company have elected to be taxed for federal tax
purposes as an S Corporation whereby the shareholders' respective equitable
shares in the taxable income of the Company are reportable on their individual
tax returns. The Company will make distributions to the shareholders each year
at least in amounts necessary to pay personal income taxes payable on the
Company's taxable income.

New Accounting Pronouncement

Effective January 1, 1996, the Company adopted SFAS No. 121, Accounting for
the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed
Of. Accordingly, in the event that facts and circumstances indicate that
property and equipment, and intangible or other assets may be impaired, an
evaluation of recoverability would be performed. If an evaluation is required,
the estimated future undiscounted cash flows associated with the asset are
compared to the asset's carrying amount to determine if a write-down to market
value is necessary. Adoption of this standard did not have a material effect
on the financial position or results of operations of the Company.

3. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Other noncurrent assets consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31, MAY 31,
1996 1997
------------ --------
<S> <C> <C>
Covenant not to compete, net of accumulated
amortization of $247,500 and $293,333, respectively... $302,500 $256,667
Other noncurrent assets................................ 31,872 6,932
-------- --------
$334,372 $263,599
======== ========
Accrued expenses consists of the following:
Accrued payroll costs and benefits..................... $100,151 $165,233
Other accrued expenses................................. 83,646 48,499
-------- --------
$183,797 $213,732
======== ========
</TABLE>

F-93
<PAGE>

A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

4. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and
equipment are as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL DECEMBER 31, MAY 31,
LIVES 1996 1997
----------- ------------ -----------
<S> <C> <C> <C>
Land.................................. -- $ 15,000 $ --
Buildings and improvements............ 20-30 years 138,958 --
Service and other vehicles............ 4-7 years 1,191,155 1,193,253
Office equipment, furniture and
fixtures............................. 5-10 years 450,086 452,323
Leasehold improvements................ -- 214,691 214,691
----------- -----------
2,009,890 1,860,267
Less accumulated depreciation......... (1,104,443) (1,157,957)
----------- -----------
$ 905,447 $ 702,310
=========== ===========
</TABLE>

5. GOODWILL AND OTHER NONCURRENT ASSETS

Goodwill represents the excess of the aggregate purchase price over the fair
value of net assets acquired and is amortized on a straight-line basis over a
period of 40 years. The Company assesses the recoverability of this intangible
asset by determining whether the amortization of the goodwill balance over its
remaining life can be recovered through undiscounted future operating cash
flows of the acquired operation. The amount of goodwill impairment, if any, is
measured based on projected discounted future operating cash flows compared to
the carrying value of goodwill. The assessment of the recoverability of
goodwill will be impacted if estimated future operating cash flows are not
achieved.

Other noncurrent assets include a covenant not to compete and deferred
charges related to the "Asset Purchase and Sale Agreement" made between the
Company's shareholders and former owners. The covenant not to compete and
deferred charges are amortized on a straight-line basis for a period of five
years, which is the period of the covenant in the agreement.

6. LONG-TERM DEBT

Long-term debt consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31, MAY 31,
1996 1997
------------ ---------
<S> <C> <C>
Equipment installment loans payable to banks and
other financial institutions, interest varying from
8.75% to 9.0%, secured by certain equipment,
payable in monthly and quarterly installments
including interest, final installment
due November 2000.................................. $ 471,554 $ 419,900
Notes payable to the former shareholders of A-1
Appliance & Air Conditioning, Inc. at 8%, payable
in monthly installments of $7,783, including
interest, final installment due November 2004...... 549,712 528,036
---------- ---------
Total long-term debt............................ 1,021,266 947,936
Less current maturities............................. (176,717) (168,425)
---------- ---------
$ 844,549 $ 779,511
========== =========
</TABLE>

F-94
<PAGE>

A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

The aggregate maturities of the long-term debt as of December 31, 1996 are
as follows:

<TABLE>
<CAPTION>
A-ABC A-1 COMBINED
-------- -------- ----------
<S> <C> <C> <C>
1997............................................ $ 97,304 $ 79,413 $ 176,717
1998............................................ 101,507 80,613 182,120
1999............................................ 108,743 71,823 180,566
2000............................................ 79,251 66,660 145,911
2001............................................ 23,435 72,477 95,912
Thereafter...................................... -- 240,040 240,040
-------- -------- ----------
$410,240 $611,026 $1,021,266
======== ======== ==========
</TABLE>

7. SHAREHOLDERS' EQUITY

The authorized, issued and outstanding common stock of the Company at
December 31, 1996 and May 31, 1997 is summarized as follows:

<TABLE>
<CAPTION>
NUMBER OF SHARES
------------------------------ COMMON
AUTHORIZED ISSUED OUTSTANDING STOCK
---------- ------- ----------- ------
<S> <C> <C> <C> <C>
A-ABC voting........................... 50 50 50 $ 250
A-ABC non-voting....................... 50 50 50 50
A-1.................................... 300,000 300,000 300,000 3,000
------- ------- ------- ------
Total................................ 300,100 300,100 300,100 $3,300
======= ======= ======= ======
</TABLE>

The voting common stock and non-voting common stock of A-ABC have stated
values of $5 and $1 per share, respectively. The common stock of A-1 has a
stated value of $0.01 per share.

8. LEASES

Future minimum lease payments under noncancelable operating leases (with
initial or remaining lease terms in excess of one year) as of December 31,
1996 are as follows:

<TABLE>
<CAPTION>
A-ABC A-1 COMBINED
---------- ------- ----------
<S> <C> <C> <C>
1997........................................... $ 99,000 $27,000 $ 126,000
1998........................................... 99,000 27,000 126,000
1999........................................... 99,000 27,000 126,000
2000........................................... 99,000 11,250 110,250
2001........................................... 99,000 -- 99,000
Thereafter..................................... 717,750 -- 717,750
---------- ------- ----------
$1,212,750 $92,250 $1,305,000
========== ======= ==========
</TABLE>

Total rental expense for the year ended December 31, 1996 and the five
months ended May 31, 1997 was $136,200 and $58,200, respectively.

9. RELATED PARTY TRANSACTIONS

The Company leases the office building and warehouse from a shareholder of
A-ABC and A-1. The Company also pays management fees to a company owned by a
shareholder for administrative and operational services. The management
agreement is renewed annually.

F-95
<PAGE>

A-ABC APPLIANCE, INC. AND A-1 APPLIANCE & AIR CONDITIONING, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

In May 1997, the Company sold land and buildings and improvements to a
shareholder for the recorded book value of $120,482. In addition, the Company
declared $342,584 of distributions to shareholders, which were not paid as of
May 31, 1997.

At December 31, 1996 and May 31, 1997, the Company had amounts due to
related parties of $315,474 and $342,584, respectively, and amounts due from
related parties of $23,174 and $145,070, respectively.

10. EMPLOYEE BENEFIT PLAN

The Company has a contributory 401(k) plan covering substantially all
employees. Contributions to this plan, determined annually, are at the
discretion of the Board of Directors. Authorized contributions for the year
ended December 31, 1996 and the five months ended May 31, 1997 amounted to
$20,258 and $9,942, respectively.

11. ADVERTISING

The Company expenses advertising costs as incurred. Total advertising
expense for the year ended December 31, 1996 and the five months ended May 31,
1997 amounted to $401,722 and $136,350, respectively, and is included in
selling, general and administrative expenses in the accompanying combined
statements of operations.

12. COMMITMENTS AND CONTINGENCIES

13. FINANCIAL INSTRUMENTS

The Company's financial instruments consist of cash and cash equivalents and
long-term debt. The Company believes that the carrying value of these
instruments on the accompanying combined balance sheets approximates their
fair value.

14. SUBSEQUENT EVENT

Effective June 1, 1997, Group Maintenance America Corp. (GroupMAC) acquired
all of the outstanding shares of the Company for a combination of cash and
common stock of GroupMAC.

F-96
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
Arkansas Mechanical Services, Inc.
and Mechanical Services, Inc.:

We have audited the accompanying combined balance sheets of Arkansas
Mechanical Services, Inc. and Mechanical Services, Inc. (collectively referred
to as the Company) as of December 31, 1996 and June 30, 1997, and the related
combined statements of operations, shareholders' equity and cash flows for the
year ended December 31, 1996 and the six months ended June 30, 1997. These
combined financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these combined
financial statements based on our audits.

In our opinion, the combined financial statements referred to above present
fairly, in all material respects, the financial position of Arkansas
Mechanical Services, Inc. and Mechanical Services, Inc. as of December 31,
1996 and June 30, 1997, and the results of its operations and its cash flows
for the year ended December 31, 1996 and the six months ended June 30, 1997 in
conformity with generally accepted accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
July 25, 1997

F-97
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

COMBINED BALANCE SHEETS

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
1996 1997
ASSETS ------------ ----------
<S> <C> <C>
CURRENT ASSETS:
Cash and cash equivalents........................... $ 124,687 $ 20,123
Accounts receivable................................. 960,574 1,337,571
Inventories......................................... 55,036 75,862
Costs and estimated earnings in excess of billings
on uncompleted contracts........................... 52,310 36,203
Due from related parties............................ 21,291 17,553
Prepaid expenses and other current assets........... 8,795 11,508
---------- ----------
Total current assets.............................. 1,222,693 1,498,820
PROPERTY AND EQUIPMENT, net........................... 634,996 632,862
GOODWILL, net of accumulated amortization of $11,265
and $11,922, respectively............................ 14,975 14,318
OTHER NONCURRENT ASSETS............................... 1,217 1,383
---------- ----------
Total assets...................................... $1,873,881 $2,147,383
========== ==========
<CAPTION>
LIABILITIES AND SHAREHOLDERS' EQUITY
<S> <C> <C>
CURRENT LIABILITIES:
Short-term borrowings and current maturities of
long-term debt..................................... $ 513,157 $ 500,352
Accounts payable.................................... 529,497 725,177
Accrued expenses.................................... 157,811 69,571
Billings in excess of costs and estimated earnings
on uncompleted contracts........................... 117,526 99,690
Due to related parties.............................. -- 35,150
---------- ----------
Total current liabilities......................... 1,317,991 1,429,940
LONG-TERM DEBT, net of current maturities............. 205,170 192,645
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock........................................ 26,000 26,000
Retained earnings................................... 371,983 546,061
Treasury stock, at cost............................. (47,263) (47,263)
---------- ----------
Total shareholders' equity........................ 350,720 524,798
---------- ----------
Total liabilities and shareholders' equity........ $1,873,881 $2,147,383
========== ==========
</TABLE>

The accompanying notes are an integral part of these combined financial
statements.

F-98
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

COMBINED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
SIX MONTHS ENDED JUNE
YEAR ENDED 30,
DECEMBER 31, ----------------------
1996 1996 1997
------------ ---------- ----------
(UNAUDITED)
<S> <C> <C> <C>
REVENUES.................................. $6,237,166 $3,460,144 $4,028,775
COST OF SERVICES.......................... 4,773,451 2,663,083 3,168,537
---------- ---------- ----------
Gross profit.......................... 1,463,715 797,061 860,238
SELLING, GENERAL AND ADMINISTRATIVE
EXPENSES................................. 1,082,470 525,206 583,120
---------- ---------- ----------
Income from operations................ 381,245 271,855 277,118
OTHER INCOME (EXPENSE):
Interest expense........................ (51,408) (22,908) (32,160)
Other................................... 30,104 17,321 2,120
---------- ---------- ----------
NET INCOME................................ $ 359,941 $ 266,268 $ 247,078
========== ========== ==========
</TABLE>

The accompanying notes are an integral part of these combined financial
statements.

F-99
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

COMBINED STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
TOTAL
COMMON RETAINED TREASURY SHAREHOLDERS'
STOCK EARNINGS STOCK EQUITY
------- --------- -------- -------------
<S> <C> <C> <C> <C>
BALANCE, December 31, 1995........... $26,000 $ 252,756 $(47,263) $ 231,493
Net income......................... -- 359,941 -- 359,941
Distributions to shareholders...... -- (240,714) -- (240,714)
------- --------- -------- ---------
BALANCE, December 31, 1996........... 26,000 371,983 (47,263) 350,720
Net income......................... -- 247,078 -- 247,078
Distributions to shareholders...... -- (73,000) -- (73,000)
------- --------- -------- ---------
BALANCE, June 30, 1997............... $26,000 $ 546,061 $(47,263) $ 524,798
======= ========= ======== =========
</TABLE>

The accompanying notes are an integral part of these combined financial
statements.

F-100
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

COMBINED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
SIX MONTHS ENDED
YEAR ENDED JUNE 30,
DECEMBER 31, --------------------
1996 1996 1997
------------ --------- ---------
(UNAUDITED)
<S> <C> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income................................. $ 359,941 $ 266,268 $ 247,078
Adjustments to reconcile net income to net
cash provided by operating activities--
Depreciation and amortization............. 109,624 65,735 89,354
Changes in operating assets and
liabilities:
(Increase) decrease in--
Accounts receivable...................... (368,388) (366,932) (376,997)
Inventories.............................. (10,142) (34) (20,826)
Costs and estimated earnings in excess of
billings on uncompleted contracts....... (27,750) (52,223) 16,107
Due from related parties................. 69,661 85,066 3,738
Prepaid expenses and other current
assets.................................. (5,009) (20,847) (2,879)
Increase (decrease) in--
Accounts payable......................... 215,954 367,492 195,680
Accrued expenses......................... 43,524 10,842 (88,240)
Billings in excess of costs and estimated
earnings on uncompleted contracts....... 23,641 (71,807) (17,836)
Due to related parties................... (41,609) (41,609) 35,150
--------- --------- ---------
Net cash provided by operating
activities............................ 369,447 241,951 80,329
--------- --------- ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment........ (237,113) (130,895) (86,563)
Proceeds from sales of property and
equipment................................. 15,000 -- --
--------- --------- ---------
Net cash used in investing activities.. (222,113) (130,895) (86,563)
--------- --------- ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from short-term borrowings........ 590,000 440,000 110,000
Payments of short-term borrowings.......... (410,000) (260,000) (100,000)
Proceeds from long-term debt............... 194,326 98,775 37,499
Payments of long-term debt................. (145,389) (39,145) (72,829)
Distributions to shareholders.............. (295,714) (155,000) (73,000)
--------- --------- ---------
Net cash provided by (used in)
financing activities.................. (66,777) 84,630 (98,330)
--------- --------- ---------
NET INCREASE (DECREASE) IN CASH AND CASH
EQUIVALENTS................................ 80,557 195,686 (104,564)
CASH AND CASH EQUIVALENTS, beginning of
period..................................... 44,130 44,130 124,687
--------- --------- ---------
CASH AND CASH EQUIVALENTS, end of period.... $ 124,687 $ 239,816 $ 20,123
========= ========= =========
</TABLE>

The accompanying notes are an integral part of these combined financial
statements.

F-101
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

Arkansas Mechanical Services, Inc. (AMS) and Mechanical Services, Inc.
(MSI), (collectively referred to as the Company), are under common ownership.
As common control exists among the entities, the financial statements have
been combined for all periods. All significant intercompany transactions and
balances have been eliminated in combination. The Company is primarily engaged
in the installation and servicing of heating and air conditioning systems for
commercial and industrial customers in Little Rock and Fayetteville, Arkansas
and the surrounding areas.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

The interim combined financial statements for the six months ended June 30,
1996 are unaudited, and certain information and footnote disclosures, normally
included in financial statements prepared in accordance with generally
accepted accounting principles, have been omitted. In the opinion of
management, all adjustments, consisting only of normal recurring adjustments,
necessary to fairly present the financial position, results of operations and
cash flows with respect to the combined interim financial statements, have
been included. The results of operations for the interim periods are not
necessarily indicative of the results for the entire fiscal year.

Use of Estimates

Revenue Recognition

Revenues from work orders are recognized as services are performed. Revenues
on service and maintenance contracts are recognized over the life of the
contract. Revenues from construction contracts are recognized on a percentage
of completion basis using the cost-to-cost method. Provisions for estimated
losses on uncompleted contracts are made in the period in which losses are
determined. Changes in job performance, job conditions, and estimated
profitability may result in revisions to costs and revenues and are recognized
in the period in which the revisions are determined.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid investments with original maturities of three months or less to
be cash equivalents. Cash payments for interest were $51,408 and $32,160 for
the year ended December 31, 1996 and the six months ended June 30, 1997.

Inventories

Inventories consist primarily of purchased materials and supplies. The
Company uses the first-in, first-out (FIFO) cost method to value its
inventories.

F-102
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

Property and Equipment

Warranty Costs

The Company warrants labor for the first year after installation on new air
conditioning and heating units. The Company generally warrants labor for 90
days after servicing of existing air conditioning and heating units. A reserve
for warranty costs is recorded upon completion of installation or service.

Income Taxes

New Accounting Pronouncement

3. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Accrued expenses consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
1996 1997
------------ --------
<S> <C> <C>
Accrued payroll costs and benefits.................. $ 115,949 $63,339
Other accrued expenses.............................. 41,862 6,232
--------- -------
$ 157,811 $69,571
========= =======
</TABLE>

F-103
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

4. COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS

A summary of the status of uncompleted contracts is as follows:

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
1996 1997
------------ ----------
<S> <C> <C>
Costs incurred.................................. $1,493,806 $2,232,909
Estimated earnings recognized................... 246,687 247,900
---------- ----------
1,740,493 2,480,809
Less billings on contracts...................... 1,805,709 2,544,296
---------- ----------
$ (65,216) $ (63,487)
========== ==========
</TABLE>

These costs and estimated earnings on uncompleted contracts are included in
the accompanying balance sheets under the following captions:

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
1996 1997
------------ --------
<S> <C> <C>
Costs and estimated earnings in excess of
billings on uncompleted contracts............... $ 52,310 $ 36,203
Billings in excess of costs and estimated
earnings on uncompleted contracts............... (117,526) (99,690)
--------- --------
$(65,216) $(63,487)
========= ========
</TABLE>

5. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and
equipment are as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL DECEMBER 31, JUNE 30,
LIVES 1996 1997
---------- ------------ ----------
<S> <C> <C> <C>
Service and other vehicles........... 4-7 years $ 654,491 $ 696,871
Machinery and equipment.............. 5-10 years 228,766 233,744
Office equipment, furniture and
fixtures............................ 5-10 years 69,698 98,121
Leasehold improvements............... -- 75,785 86,567
---------- ----------
1,028,740 1,115,303
Less accumulated depreciation........ (393,744) (482,441)
---------- ----------
$ 634,996 $ 632,862
========== ==========
</TABLE>

6. GOODWILL

F-104
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

7. SHORT- AND LONG-TERM DEBT

Short- and long-term debt consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
1996 1997
------------ ---------
<S> <C> <C>
Revolving line of credit with a bank with a maximum
amount of $300,000; interest accrues at prime plus
.75% and is payable monthly; secured by accounts
receivable and the personal guarantee of the
shareholders; due on demand.......................... $ 100,000 $ 75,000
Revolving line of credit with a bank with a maximum
amount of $250,000; interest accrues at 10.0% and is
payable monthly; secured by accounts receivable and
the personal guarantee of the shareholders; due on
demand with a maturity date of June 1997............. 180,000 --
Revolving line of credit with a bank with a maximum
amount of $400,000; interest accrues at prime plus
1.5% and is payable monthly; secured by accounts
receivable and the personal guarantee of the
shareholders; due on demand with a maturity date of
February 1998........................................ -- 215,000
Equipment installment notes to a bank; interest
accrued at various rates, payable in monthly
installments, including interest, of $14,256, final
installment due 2001; secured by service and other
vehicles and the personal guarantee of stockholders.. 275,603 259,718
Note payable to a bank; interest accrues at 9.5%;
payable in monthly installments including interest,
of $2,025, final installments, due August 1997;
secured by personal guarantee of the shareholder..... 92,512 83,731
Equipment installment notes to a bank; interest
varying from 7.5% to 10.0%; payable in monthly
installments of various amounts, including interest,
through 2000; secured by service and other vehicles.. 39,366 33,287
Note payable to a company affiliated through common
ownership; interest accrued at 9.0%; payable in
monthly installments, including interest of $981,
final installment due December 1999; unsecured....... 30,846 26,261
--------- ---------
Total short- and long-term debt..................... 718,327 692,997
Less short-term borrowings and current maturities..... (513,157) (500,352)
--------- ---------
$ 205,170 $ 192,645
========= =========
</TABLE>

The aggregate maturities of the short- and long-term debt as of December 31,
1996 are as follows:

<TABLE>
<CAPTION>
AMS MSI COMBINED
-------- -------- --------
<S> <C> <C> <C>
1997........................................... $320,107 $193,050 $513,157
1998........................................... 69,749 12,758 82,507
1999........................................... 68,141 10,827 78,968
2000........................................... 40,023 2,723 42,746
2001........................................... 949 -- 949
-------- -------- --------
$498,969 $219,358 $718,327
======== ======== ========
</TABLE>

F-105
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

8. SHAREHOLDERS' EQUITY

The authorized, issued and outstanding common stock of the Company at
December 31, 1996 and June 30, 1997 is summarized as follows:

<TABLE>
<CAPTION>
NUMBER OF SHARES
---------------------------
TREASURY COMMON
AMORTIZED ISSUED OUTSTANDING STOCK STOCK
--------- ------ ----------- -------- -------
<S> <C> <C> <C> <C> <C>
AMS......................... 100,000 6,000 6,000 1,900 $ 6,000
MSI......................... 1,000 400 333 -- 20,000
------- ----- ----- ----- -------
Total..................... 101,000 6,400 6,333 1,900 $26,000
======= ===== ===== ===== =======
</TABLE>

The common stock of AMS has a par value of $1 per share. The common stock of
MSI has a par value of $1 per share, but has a stated value of $60 per share.
MSI must maintain $20,000 in shareholders' equity in order to retain its
contractors license.

9. LEASES

Future minimum lease payments under noncancelable operating leases (with
initial or remaining lease terms in excess of one year) as December 31, 1996
are as follows:

<TABLE>
<CAPTION>
AMS MSI COMBINED
------- ------ --------
<S> <C> <C> <C>
1997.............................................. $17,608 $6,912 $24,520
1998.............................................. 14,400 2,656 17,056
1999.............................................. 14,400 -- 14,400
------- ------ -------
$46,408 $9,568 $55,976
======= ====== =======
</TABLE>

In addition to the above lease commitments, the Company leases office and
warehouse space under a month-to-month operating lease, with monthly payments
of $3,200. Total rental expense for the year ended December 31, 1996 and the
six months ended June 30, 1997 was $76,409 and $38,421, respectively.

10. RELATED PARTY TRANSACTIONS

The Company rents certain facilities from related parties. Total rent
expense for these facilities for the year ended December 31, 1996 and the six
months ended June 30, 1997 was $75,696 and $29,608, respectively. AMS rents
certain vehicles from a company affiliated through common ownership. Total
rent expense for these vehicles for the year ended December 31, 1996 and the
six months ended June 30, 1997 was $7,300 and $3,300, respectively.

The Company obtains data processing and other services from a company
affiliated through common ownership. The total expense for these services for
the year ended December 31, 1996 and the six months ended June 30, 1997 was
$120,564 and $60,282, respectively.

11. EMPLOYEE BENEFIT PLAN

Non-office employees are participants in a multi-employer defined
contribution plan pursuant to the collective bargaining agreement of the
union. Contributions for the year ended December 31, 1996 and the six months
ended June 30, 1997, were $91,316 and $57,512, respectively.

F-106
<PAGE>

ARKANSAS MECHANICAL SERVICES, INC. AND
MECHANICAL SERVICES, INC.

NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

12. COMMITMENTS AND CONTINGENCIES

13. FINANCIAL INSTRUMENTS

14. ACQUISITION OF COMPANY

In May 1997, the Company signed a letter of intent with Group Maintenance
America Corp. (GroupMAC), whereby GroupMAC will acquire the Company in a
merger transaction for a combination of cash and common shares of GroupMAC
concurrent with the consummation of the initial public offering of the common
stock of GroupMAC, subject to certain conditions including the negotiation of
definitive agreements and approval by Directors of both companies.

F-107
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
Callahan Roach Products and Publications, Inc.

We have audited the accompanying balance sheet of Callahan Roach Products
and Publications, Inc. as of February 28, 1997, and the related statements of
operations, shareholders' equity and cash flows for the year then ended. These
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audit.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Callahan Roach Products
and Publications, Inc. as of February 28, 1997, and the results of its
operations and its cash flows for the year then ended in conformity with
generally accepted accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
July 30, 1997

F-108
<PAGE>

CALLAHAN ROACH PRODUCTS AND PUBLICATIONS, INC.

BALANCE SHEETS

<TABLE>
<CAPTION>
FEBRUARY 28, JUNE 30,
1997 1997
------------ -----------
(UNAUDITED)
<S> <C> <C>
ASSETS
CURRENT ASSETS:
Cash and cash equivalents........................... $ 27,161 $105,939
Accounts receivable................................. 10,104 --
Inventories......................................... 44,567 46,837
-------- --------
Total current assets.............................. 81,832 152,776
PROPERTY AND EQUIPMENT, net........................... 126,374 117,843
-------- --------
Total assets...................................... $208,206 $270,619
======== ========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
Short-term borrowings and current maturities of
long-term debt..................................... $ 60,595 $ 60,629
Accounts payable.................................... 76,043 71,427
Accrued expenses.................................... 21,892 18,436
Income taxes payable................................ 2,576 14,407
-------- --------
Total current liabilities......................... 161,106 164,899
LONG-TERM DEBT, net of current maturities............. 24,558 17,607
DEFERRED INCOME TAXES................................. 8,260 8,760
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock, $1 par value; 100,000 shares
authorized;
1,000 shares issued and outstanding................ 1,000 1,000
Retained earnings................................... 13,282 78,353
-------- --------
Total shareholders' equity........................ 14,282 79,353
-------- --------
Total liabilities and shareholders' equity........ $208,206 $270,619
======== ========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-109
<PAGE>

CALLAHAN ROACH PRODUCTS AND PUBLICATIONS, INC.

STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
FOUR MONTHS ENDED
YEAR ENDED ------------------
FEBRUARY 28, JUNE 30, JUNE 30,
1997 1996 1997
------------ -------- --------
(UNAUDITED)
<S> <C> <C> <C>
REVENUES....................................... $1,552,708 $639,702 $597,042
COST OF SERVICES............................... 310,816 108,479 130,710
---------- -------- --------
Gross profit................................. 1,241,892 531,223 466,332
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES... 1,238,075 438,965 379,697
---------- -------- --------
Income from operations....................... 3,817 92,258 86,635
OTHER INCOME (EXPENSES):
Interest expense............................. (9,196) (2,187) (5,197)
Other........................................ (6,497) 9 (1,367)
---------- -------- --------
Income (loss) before income taxes........... (11,876) 90,080 80,071
INCOME TAX PROVISION........................... -- 19,000 15,000
---------- -------- --------
NET INCOME (LOSS).............................. $ (11,876) $ 71,080 $ 65,071
========== ======== ========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-110
<PAGE>

CALLAHAN ROACH PRODUCTS AND PUBLICATIONS, INC.

STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
TOTAL
COMMON RETAINED SHAREHOLDERS'
STOCK EARNINGS EQUITY
------ -------- -------------
<S> <C> <C> <C>
BALANCE, February 28, 1996....................... $1,000 $ 25,158 $ 26,158
Net loss....................................... -- (11,876) (11,876)
------ -------- --------
BALANCE, February 28, 1997....................... 1,000 13,282 14,282
Net income (unaudited)......................... -- 65,071 65,071
------ -------- --------
BALANCE, June 30, 1997 (unaudited)............... $1,000 $ 78,353 $ 79,353
====== ======== ========
</TABLE>

The accompanying notes are an integral part of the financial statements.

F-111
<PAGE>

CALLAHAN ROACH PRODUCTS AND PUBLICATIONS, INC.

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
FOUR MONTHS ENDED
YEAR ENDED ------------------
FEBRUARY 28, JUNE 30, JUNE 30,
1997 1996 1997
------------ -------- --------
(UNAUDITED)
<S> <C> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss).................... $ (11,876) $ 71,080 $ 65,071
Adjustments to reconcile net income
(loss) to net cash
provided by operating activities:
Depreciation....................... 26,587 2,395 17,872
Deferred income taxes -- -- 500
Changes in operating assets and
liabilities:
(Increase) decrease in--
Accounts receivable.............. (8,890) (9,983) 10,104
Inventories...................... 7,673 8,551 (2,270)
Increase (decrease) in--
Accounts payable................. (4,555) (54,180) (4,616)
Accrued expenses................. 14,051 2,462 (3,456)
Income taxes payable............. (589) 18,858 11,831
--------- -------- --------
Net cash provided by operating
activities..................... 22,401 39,183 95,036
--------- -------- --------
CASH FLOWS USED IN INVESTING
ACTIVITIES:
Purchases of property and equipment.. (103,577) (43,945) (9,341)
--------- -------- --------
CASH FLOWS FROM FINANCING ACTIVITIES:
Net borrowings (repayments) on bank
line of credit...................... 35,701 1,535 (443)
Proceeds from long-term debt......... 46,100 28,174 --
Payment on long-term debt............ (11,405) (723) (6,474)
--------- -------- --------
Net cash provided by (used in)
financing activities........... 70,396 28,986 (6,917)
--------- -------- --------
NET INCREASE (DECREASE) IN CASH....... (10,780) 24,224 78,778
CASH AND CASH EQUIVALENTS, beginning
of period............................ 37,941 37,941 27,161
--------- -------- --------
CASH AND CASH EQUIVALENTS, end of
period............................... $ 27,161 $ 62,165 $105,939
========= ======== ========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-112
<PAGE>

CALLAHAN ROACH PRODUCTS AND PUBLICATIONS, INC.

NOTES TO FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

Callahan Roach Products and Publications, Inc., (the Company) is primarily
engaged in the business of selling marketing products and pricing models to
independent service companies which install and service heating and air
conditioning systems nationally.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

Interim financial statements as of June 30, 1997 and for the four months
ended June 30, 1996 and 1997, are unaudited, and certain information and
footnote disclosures, normally included in financial statements prepared in
accordance with generally accepted accounting principles, have been omitted.
In the opinion of management, all adjustments, consisting only of normal
recurring adjustments, necessary to fairly present the financial position,
results of operations and cash flows with respect to the interim financial
statements, have been included. The results of operations for the interim
periods are not necessarily indicative of the results for the entire fiscal
year.

Use of Estimates

Revenue and Cost Recognition

Revenues from service contracts are recognized as services are performed.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid investments with original maturities of three months or less to
be cash equivalents. Cash payments for interest and taxes were $9,196 and
$3,123, respectively, for the year ended February 28, 1997.

Inventories

Inventories consists of supplies used in providing the Company's products
and services. The inventory is valued at the lower of cost or market, with
cost determined on a first-in, first-out (FIFO) basis.

Property, Equipment and Depreciation

F-113
<PAGE>

CALLAHAN ROACH PRODUCTS AND PUBLICATIONS, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

Income Taxes

New Accounting Pronouncement

Effective March 1, 1996, the Company adopted SFAS No. 121, Accounting for
the Impairment of Long Lived Assets and for Long-Lived Assets to Be Disposed
Of. Accordingly, in the event that facts and circumstances indicate that
property and equipment, and intangible or other assets, may be impaired, an
evaluation of recoverability would be performed. If an evaluation is required,
the estimated future undiscounted cash flows associated with the asset are
compared to the asset's carrying amount to determine if a write-down to market
value is necessary. Adoption of this standard did not have a material effect
on the financial position or results of operations of the Company.

2. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Accrued expenses consist of the following at February 28, 1997:

<TABLE>
<S> <C>
Accrued payroll and related expense................................. $14,051
Other accrued expenses.............................................. 7,841
-------
$21,892
=======
</TABLE>

3. PROPERTY AND EQUIPMENT

A summary of property and equipment at February 28, 1997 is as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL LIVES
------------
<S> <C> <C>
Furniture and fixtures................................ 3-7 years $179,641
Less accumulated depreciation......................... (53,267)
--------
Property and equipment, net......................... $126,374
========
</TABLE>

4. INCOME TAXES

There is no Federal income tax provision as losses were incurred and a
valuation allowance has been established against future benefits deriving from
the carryforward of these losses. The deferred income tax liability results
primarily from tax depreciation in excess of book depreciation on property and
equipment.

F-114
<PAGE>

CALLAHAN ROACH PRODUCTS AND PUBLICATIONS, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

5. SHORT- AND LONG-TERM DEBT

Short- and long-term debt consists of the following at February 28, 1997:

<TABLE>
<S> <C>
Credit facility in the amount of $100,000 with a bank, bearing
interest at 12.75%................................................ $42,584
Equipment loans payable to financial institutions, interest varying
from 12% to 19%, collateralized by certain equipment, payable in
monthly installments including interest,
final installment due February 2000............................... 42,569
-------
85,153
Less short-term borrowings and current maturities.................. (60,595)
-------
$24,558
=======
</TABLE>

The Company has a revolving credit agreement with a bank to provide
borrowings up to $100,000. The revolving credit agreement is collateralized by
the personal guarantees of shareholders. Borrowings under the agreement in
effect on February 28, 1997, bear interest at 12.5%. Borrowings outstanding at
February 28, 1997 were $42,584.

Maturities of short- and long-term debt are as follows:

<TABLE>
<CAPTION>
YEAR ENDING
FEBRUARY 28,
------------
<S> <C>
1998................................................................ $60,595
1999................................................................ 16,375
2000................................................................ 8,183
-------
$85,153
=======
</TABLE>

6. COMMITMENTS AND CONTINGENCIES

The Company may be involved in various claims and legal actions arising in
the ordinary course of business. In the opinion of management, the ultimate
disposition of these matters will not have a material adverse effect on the
Company's financial position, results of operations or liquidity.

7. FINANCIAL INSTRUMENTS

The Company's financial instruments consist of cash and cash equivalents,
and short- and long-term debt. The Company believes that the carrying value of
these instruments on the accompanying balance sheets approximates their fair
value.

8. SUBSEQUENT EVENT

Effective July 1, 1997, Group Maintenance America Corp. (GroupMAC) acquired
the Company in a merger transaction for a combination of cash, preferred stock
and common stock of GroupMAC. All of the preferred shares issued in connection
with the acquisition of the Company will be redeemed for cash concurrent with
the consummation of the initial public offering of the common stock of
GroupMAC.

F-115
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors Central Carolina Air Conditioning Company:

We have audited the accompanying balance sheets of Central Carolina Air
Conditioning Company (the Company) as of October 31, 1996 and June 30, 1997,
and the related statements of operations, shareholders' equity and cash flows
for the year ended October 31, 1996 and the eight months ended June 30, 1997.
These financial statements are the responsibility of the Company's management.
Our responsibility is to express an opinion on these financial statements
based on our audits.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Central Carolina Air
Conditioning Company as of October 31, 1996 and June 30, 1997, and the results
of its operations and its cash flows for the year ended October 31, 1996 and
the eight months ended June 30, 1997 in conformity with generally accepted
accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
July 18, 1997

F-116
<PAGE>

CENTRAL CAROLINA AIR CONDITIONING COMPANY

BALANCE SHEETS

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- ----------
<S> <C> <C>
ASSETS
CURRENT ASSETS:
Cash and cash equivalents.............................. $ 440,289 $ 457,132
Accounts receivable.................................... 627,783 867,913
Inventories............................................ 292,215 246,225
Costs and estimated earnings in excess of billings on
uncompleted contracts................................. 113,653 168,226
Due from related parties............................... 505,003 175,448
Prepaid expenses and other current assets.............. 240,089 219,149
---------- ----------
Total current assets.................................. 2,219,032 2,134,093
PROPERTY AND EQUIPMENT, net............................. 459,553 674,948
OTHER NONCURRENT ASSETS................................. 37,098 38,498
---------- ----------
Total assets.......................................... $2,715,683 $2,847,539
========== ==========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
Short-term borrowings and current maturities of long-
term debt............................................. $ 64,283 $ 979
Accounts payable....................................... 322,848 274,887
Accrued expenses....................................... 261,300 232,751
Billings in excess of costs and estimated earnings on
uncompleted contracts................................. 48,399 39,131
Deferred service contract revenue...................... 755,047 762,821
---------- ----------
Total current liabilities............................. 1,451,877 1,310,569
DEFERRED SERVICE CONTRACT REVENUE....................... 211,397 204,304
DEFERRED COMPENSATION LIABILITY......................... 55,373 60,670
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock--$10 par value; 2,000 shares authorized,
issued and outstanding................................ 20,000 20,000
Additional paid-in capital............................. 23,140 23,140
Retained earnings...................................... 953,896 1,228,856
---------- ----------
Total shareholders' equity............................ 997,036 1,271,996
---------- ----------
Total liabilities and shareholders' equity............ $2,715,683 $2,847,539
========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-117
<PAGE>

CENTRAL CAROLINA AIR CONDITIONING COMPANY

STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
EIGHT MONTHS ENDED
YEAR ENDED JUNE 30,
OCTOBER 31, ----------------------
1996 1996 1997
----------- ---------- ----------
(UNAUDITED)
<S> <C> <C> <C>
REVENUES................................... $8,161,356 $5,139,628 $5,463,051
COST OF SERVICES........................... 5,182,045 3,267,848 3,224,802
---------- ---------- ----------
Gross profit............................. 2,979,311 1,871,780 2,238,249
SELLING, GENERAL AND ADMINISTRATIVE
EXPENSES.................................. 2,598,253 1,672,596 1,648,388
---------- ---------- ----------
Income from operations................... 381,058 199,184 589,861
OTHER INCOME (EXPENSE):
Interest expense.......................... (9,841) (6,073) (3,087)
Interest income........................... 30,219 17,611 28,472
Other..................................... (40,166) 13,487 11,233
---------- ---------- ----------
NET INCOME................................. $ 361,270 $ 224,209 $ 626,479
========== ========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-118
<PAGE>

CENTRAL CAROLINA AIR CONDITIONING COMPANY

STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
ADDITIONAL TOTAL
COMMON PAID-IN RETAINED SHAREHOLDERS'
STOCK CAPITAL EARNINGS EQUITY
------- ---------- ---------- -------------
<S> <C> <C> <C> <C>
BALANCE, October 31, 1995.......... $20,000 $23,140 $ 973,595 $1,016,735
Net income........................ -- -- 361,270 361,270
Distributions to shareholders..... -- -- (380,969) (380,969)
------- ------- ---------- ----------
BALANCE, October 31, 1996.......... 20,000 23,140 953,896 997,036
Net income........................ -- -- 626,479 626,479
Distributions to shareholders..... -- -- (351,519) (351,519)
------- ------- ---------- ----------
BALANCE, June 30, 1997............. $20,000 $23,140 $1,228,856 $1,271,996
======= ======= ========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-119
<PAGE>

CENTRAL CAROLINA AIR CONDITIONING COMPANY

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
EIGHT MONTHS ENDED
YEAR ENDED JUNE 30,
OCTOBER 31, ----------------------
1996 1996 1997
----------- ----------- ---------
(UNAUDITED)
<S> <C> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income................................. $ 361,270 $ 224,209 $ 626,479
Adjustments to reconcile net income to net
cash
provided by (used in) operating
activities:
Depreciation............................. 200,548 140,707 142,535
Gain on sales of property and equipment.. (13,811) (3,344) --
Changes in operating assets and
liabilities:
(Increase) decrease in--
Accounts receivable.................... (144,095) (243,215) (240,130)
Inventories............................ 6,516 62,058 45,990
Costs and estimated earnings in excess
of billings on uncompleted contracts.. (73,301) (52,611) (54,573)
Due from related parties............... (340,792) (481,044) 329,555
Prepaid expenses and other current
assets................................ (55,800) 91,214 20,940
Other noncurrent assets................ 1,750 1,050 (1,400)
Increase (decrease) in--
Accounts payable....................... 75,239 7,192 (47,961)
Accrued expenses....................... (82,481) (123,859) (28,549)
Billings in excess of costs and
estimated earnings on uncompleted
contracts............................. 31,913 71,245 (9,268)
Deferred service contract revenue...... 17,670 (31,809) 681
Deferred compensation liability........ 7,945 5,297 5,297
---------- ---------- ---------
Net cash provided by (used in)
operating activities................. (7,429) (332,910) 789,596
---------- ---------- ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment........ (244,128) (266,117) (357,930)
Proceeds from sales of property and
equipment................................. 25,615 3,344 --
---------- ---------- ---------
Net cash used in investing activities. (218,513) (262,773) (357,930)
---------- ---------- ---------
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from short- and long-term debt.... 125,000 125,000 --
Payments of short- and long-term debt...... (120,203) (14,655) (63,304)
Distributions to shareholders.............. (380,969) (196,994) (351,519)
---------- ---------- ---------
Net cash used in financing activities. (376,172) (86,649) (414,823)
---------- ---------- ---------
NET INCREASE (DECREASE) IN CASH AND CASH
EQUIVALENTS................................ (602,114) (682,332) 16,843
CASH AND CASH EQUIVALENTS, beginning of
period..................................... 1,042,403 1,042,403 440,289
---------- ---------- ---------
CASH AND CASH EQUIVALENTS, end of period.... $ 440,289 $ 360,071 $ 457,132
========== ========== =========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-120
<PAGE>

CENTRAL CAROLINA AIR CONDITIONING COMPANY

NOTES TO FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

Central Carolina Air Conditioning Company (the Company) is primarily engaged
in the installation and servicing of heating and air conditioning systems for
residential and commercial customers in the Greensboro and Winston Salem,
North Carolina areas.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

The interim financial statements for the eight months ended June 30, 1996
are unaudited, and certain information and footnote disclosures, normally
included in financial statements prepared in accordance with generally
accepted accounting principles, have been omitted. In the opinion of
management, all adjustments, consisting only of normal recurring adjustments,
necessary to fairly present the financial position, results of operations and
cash flows with respect to the interim financial statements, have been
included. The results of operations for the interim periods are not
necessarily indicative of the results for the entire fiscal year.

Use of Estimates

Revenue Recognition

Revenues from work orders are recognized as services are performed. Revenues
on service and maintenance contracts are recognized over the life of the
contract. Revenues from construction contracts are recognized on a percentage
of completion basis using the cost-to-cost method. Provisions for estimated
losses on uncompleted contracts are made in the period in which such losses
are determined. Changes in job performance, job conditions, and estimated
profitability may result in revisions to costs and revenues and are recognized
in the period in which the revisions are determined.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid debt instruments with a maturity of three months or less to be
cash equivalents. Cash payments for interest were $9,841 and $3,087 for the
year ended October 31, 1996 and the eight months ended June 30, 1997,
respectively.

Inventories

Inventories consist of parts and supplies used mainly in the service portion
of the Company's operation. The inventory is valued at the lower of cost or
market, with cost determined on a first-in, first-out (FIFO) basis.

Property and Equipment

F-121
<PAGE>

CENTRAL CAROLINA AIR CONDITIONING COMPANY

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

Warranty Costs

The Company warrants labor for the first year after installation on new air
conditioning and heating units. The Company also offers an extended service
warranty on sales of air conditioning and heating units, for coverage up to
five years after installation. The Company generally warrants labor for 90
days after servicing of existing air conditioning and heating units. A reserve
for warranty costs is recorded upon completion of installation or service.

Income Taxes

The shareholders of the Company have elected to be taxed for federal and
North Carolina tax purposes as an S Corporation whereby the shareholders'
respective equitable shares in the taxable income of the Company are
reportable on their individual tax returns. The Company makes distributions to
the shareholders' each year at least in amounts necessary to pay personal
income tax payable on the Company's taxable income.

New Accounting Pronouncement

Effective November 1, 1995, the Company adopted SFAS No. 121, Accounting for
the Impairment of Long Lived Assets and for Long-Lived Assets to Be Disposed
Of. Accordingly, in the event that facts and circumstances indicate that
property and equipment, and intangible or other assets may be impaired, an
evaluation of recoverability would be performed. If an evaluation is required,
the estimated future undiscounted cash flows associated with the asset are
compared to the asset's carrying amount to determine if a write-down to market
value is necessary. Adoption of this standard did not have a material effect
on the financial position or results of operations of the Company.

3. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Prepaid expenses and other current assets consists of the following:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Prepaid expenses....................................... $ 96,620 $ 69,732
Cash value of life insurance........................... 119,331 130,801
Other current assets................................... 24,138 18,616
-------- --------
$240,089 $219,149
======== ========
</TABLE>

Cash value of life insurance represents the cash value of six life insurance
policies.

Accrued expenses consists of the following:

<TABLE>
<S> <C> <C>
Accrued payroll costs and benefits........................ $124,208 $175,831
Accrued bonus and profit sharing.......................... 95,195 --
Other accrued expenses.................................... 41,897 56,920
-------- --------
$261,300 $232,751
======== ========
</TABLE>

F-122
<PAGE>

CENTRAL CAROLINA AIR CONDITIONING COMPANY

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

4. COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS

A summary of the status of uncompleted contracts is as follows:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Costs incurred......................................... $464,107 $526,315
Estimated earnings recognized.......................... 177,188 269,364
-------- --------
641,295 795,679
Less billings on contracts............................. 576,041 666,584
-------- --------
$ 65,254 $129,095
======== ========
</TABLE>

These costs and estimated earnings on uncompleted contracts are included in
the accompanying balance sheets under the following captions:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Costs and estimated earnings in excess of billings on
uncompleted contracts............................... $113,653 $168,226
Billings in excess of costs and estimated earnings on
uncompleted contracts............................... (48,399) (39,131)
-------- --------
$ 65,254 $129,095
======== ========
</TABLE>

5. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and equipment
are as follows:

<TABLE>
<CAPTION>
ESTIMATED OCTOBER 31, JUNE 30,
USEFUL LIVES 1996 1997
------------ ----------- -----------
<S> <C> <C> <C>
Service and other vehicles........... 4-7 years $ 1,026,498 $ 1,320,858
Machinery and equipment.............. 5-10 years 203,362 206,399
Office equipment, fixtures and
fixtures............................ 5-10 years 373,146 392,231
Leasehold improvements............... -- 294,877 306,087
----------- -----------
1,897,883 2,225,575
Less accumulated depreciation........ (1,438,330) (1,550,627)
----------- -----------
$ 459,553 $ 674,948
=========== ===========
</TABLE>

F-123
<PAGE>

CENTRAL CAROLINA AIR CONDITIONING COMPANY

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

6. SHORT- AND LONG-TERM DEBT

Short- and long-term debt consists of the following:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Revolving line of credit with a bank, with a maximum
amount
of $200,000 through February 1, 1997; interest
accrues at prime
(8.25% as of October 31, 1996) and is payable
monthly;
unpaid principal due on demand....................... $50,000 $--
Note payable to bank, due in monthly installments of
$1,167, with interest
of 8% per annum and secured by vehicles; matures July
15, 1997............................................. 9,998 979
Note payable to bank, due in monthly installments of
$1,093, with interest
of 7.25% per annum and secured by vehicles; matures
February 15, 1997.................................... 4,285 --
------- ----
$64,283 $979
======= ====
</TABLE>

The Company had a revolving line of credit with a bank to provide unsecured
borrowings of up to $200,000. Interest accrued at prime and was payable
monthly. This agreement matured in February 1997. Upon maturity, the Company
obtained another revolving line of credit to provide borrowings of up to
$300,000 with a loan maturity date of March 1, 1998. Other terms of the
agreement were unchanged.

7. LEASES

The Company leases its office building and warehouse from a shareholder
under a 20-year lease terminating in October 2016. The rent is $9,125 for the
first three years and increases by 2.5% at the beginning of the fourth,
seventh, tenth, thirteenth, sixteenth and nineteenth years.

Future minimum lease payments under noncancelable operating leases (with
initial or remaining lease terms in excess of one year) as of October 31, 1996
are as follows:

<TABLE>
<S> <C>
1997.............................................................. $ 109,500
1998.............................................................. 109,500
1999.............................................................. 109,500
2000.............................................................. 112,238
2001.............................................................. 112,238
Thereafter........................................................ 1,799,369
----------
$2,352,345
==========
</TABLE>

8. RELATED PARTY TRANSACTIONS

The Company leases its office building and warehouse from shareholders of
the Company. For the year ended October 31, 1996 and the eight months ended
June 30, 1997, the Company paid $119,526 and $81,741, respectively, related to
these leases. As of October 31, 1996 and June 30, 1997, the Company has
unsecured advances to various shareholders totaling $444,933 and $136,400,
respectively. In addition, the Company has a mortgage receivable from the
President and shareholder of $60,070 and $39,048 as of October 31, 1996 and
June 30, 1997, respectively. These amounts are included in the amounts due
from related parties in the accompanying balance sheets.

F-124
<PAGE>

CENTRAL CAROLINA AIR CONDITIONING COMPANY

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

9. EMPLOYEE BENEFIT PLAN

The Company maintains a voluntary 401(k) plan (the Plan) covering its
qualified employees. Employees may choose to defer up to 10% of their
compensation during the Plan year, not to exceed Internal Revenue Service
limitations, by contributing to the Plan. The Company matches 100% of each
employee's contributions up to a maximum of 5% of the employee's gross
earnings. Contributions made by the Company of $18,902 and $10,938 were
charged to operations in the year ended October 31, 1996 and the eight months
ended June 30, 1997, respectively.

10. COMMITMENTS AND CONTINGENCIES

11. FINANCIAL INSTRUMENTS

12. ACQUISITION OF COMPANY

F-125
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
Hallmark Air Conditioning, Inc.:

We have audited the accompanying consolidated balance sheets of Hallmark Air
Conditioning, Inc. and subsidiary (the Company) as of February 28, 1997 and
May 31, 1997, and the related consolidated statements of operations,
shareholders' equity and cash flows for the year ended February 28, 1997 and
the three months ended May 31, 1997. These consolidated financial statements
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these consolidated financial statements based on our
audits.

In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Hallmark
Air Conditioning, Inc. and subsidiary as of February 28, 1997 and May 31,
1997, and the results of their operations and their cash flows for the year
ended February 28, 1997 and the three months ended May 31, 1997, in conformity
with generally accepted accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
July 11, 1997

F-126
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

CONSOLIDATED BALANCE SHEETS

<TABLE>
<CAPTION>
FEBRUARY 28, MAY 31,
1997 1997
------------ ----------
<S> <C> <C>
ASSETS
CURRENT ASSETS:
Cash and cash equivalents............................ $ 203,739 $ 229,466
Accounts receivable, net of allowance for doubtful
accounts
of $4,039 and $8,078, respectively.................. 139,143 220,122
Inventories.......................................... 359,380 395,684
Due from related parties............................. 43,977 38,140
Deferred income taxes................................ 163,673 160,527
Prepaid expenses and other current assets............ 244,257 184,829
---------- ----------
Total current assets............................... 1,154,169 1,228,768
PROPERTY AND EQUIPMENT, net............................ 224,504 203,424
GOODWILL, net of accumulated amortization of $6,418 and
$8,344, respectively.................................. 109,113 107,187
DUE FROM RELATED PARTIES............................... 29,476 29,476
OTHER NONCURRENT ASSETS................................ 131,990 128,040
---------- ----------
Total assets....................................... $1,649,252 $1,696,895
========== ==========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
Short-term borrowings and current maturities of long-
term debt........................................... $ 46,989 $ 31,896
Current obligations under capital leases............. 69,628 69,628
Accounts payable..................................... 75,655 224,327
Accrued expenses..................................... 146,658 197,154
Deferred service contract revenue.................... 310,927 294,453
---------- ----------
Total current liabilities.......................... 649,857 817,458
LONG-TERM DEBT, net of current maturities.............. 181,570 191,434
OBLIGATIONS UNDER CAPITAL LEASES, net of current
maturities............................................ 54,733 45,440
DEFERRED SERVICE CONTRACT REVENUE...................... 159,708 144,204
DEFERRED INCOME TAXES.................................. 22,429 19,283
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock--$100 par value; 500 shares authorized;
180 shares issued and outstanding................... 18,000 18,000
Retained earnings.................................... 560,889 459,761
Net unrealized gain on marketable securities......... 2,066 1,315
---------- ----------
Total shareholders' equity......................... 580,955 479,076
---------- ----------
Total liabilities and shareholders' equity......... $1,649,252 $1,696,895
========== ==========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-127
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
THREE MONTHS ENDED
YEAR ENDED MAY 31,
FEBRUARY 28, ----------------------
1997 1996 1997
------------ ---------- ----------
(UNAUDITED)
<S> <C> <C> <C>
REVENUES.......................... $6,516,181 $1,642,422 $1,558,526
COST OF SERVICES.................. 3,461,490 879,293 826,626
---------- ---------- ----------
Gross profit.................... 3,054,691 763,129 731,900
SELLING, GENERAL AND
ADMINISTRATIVE EXPENSES.......... 3,045,942 676,118 811,982
---------- ---------- ----------
Income (loss) from operations... 8,749 87,011 (80,082)
OTHER INCOME (EXPENSE):
Interest expense................ (30,647) (7,436) (30,135)
Interest income................. 16,106 4,082 11,652
Other........................... 3,227 (11,319) --
---------- ---------- ----------
Income (loss) before income tax
provision..................... (2,565) 72,338 (98,565)
INCOME TAX PROVISION.............. 18,114 12,120 2,563
---------- ---------- ----------
NET INCOME (LOSS)................. $ (20,679) $ 60,218 $ (101,128)
========== ========== ==========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-128
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
NET
UNREALIZED
GAIN ON TOTAL
COMMON RETAINED MARKETABLE SHAREHOLDERS'
STOCK EARNINGS SECURITIES EQUITY
------- --------- ---------- -------------
<S> <C> <C> <C> <C>
BALANCE, February 29, 1996......... $18,000 $ 581,568 $ 853 $ 600,421
Net loss......................... -- (20,679) -- (20,679)
Net unrealized gain on marketable
securities...................... -- -- 1,213 1,213
------- --------- ------ ---------
BALANCE, February 28, 1997......... 18,000 560,889 2,066 580,955
Net loss......................... -- (101,128) -- (101,128)
Net unrealized loss on marketable
securities...................... -- -- (751) (751)
------- --------- ------ ---------
BALANCE, May 31, 1997.............. $18,000 $ 459,761 $1,315 $ 479,076
======= ========= ====== =========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-129
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

CONSOLIDATED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
THREE MONTHS ENDED
YEAR ENDED MAY 31,
FEBRUARY 28, ---------------------
1997 1996 1997
------------ ----------- ---------
(UNAUDITED)
<S> <C> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)......................... $ (20,679) $ 60,218 $(101,128)
Adjustments to reconcile net income (loss)
to net cash
provided by (used in) operating
activities:
Depreciation and amortization........... 171,417 33,426 40,806
Deferred income tax benefit............. (114) -- --
Changes in operating assets and
liabilities, net of effect of
acquisitions accounted for as
purchases:
(Increase) decrease in--
Accounts receivable................... 17,294 (107,706) (80,979)
Inventories........................... (7,915) (70,635) (36,304)
Due from related parties.............. 10,175 46,610 5,837
Prepaid expenses and other current
assets............................... (65,977) 88,660 58,677
Increase (decrease) in--
Accounts payable...................... (21,832) 105,401 148,672
Accrued expenses...................... (105,520) 61,281 50,496
Deferred service contract revenue..... (41,539) 6,911 (31,978)
--------- --------- ---------
Net cash provided by (used in)
operating activities................ (64,690) 224,166 54,099
--------- --------- ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
Cash acquired through acquisition......... 36,881 36,881 --
Purchases of property and equipment....... (35,742) (12,629) (13,850)
Proceeds from sales of property and
equipment................................ 15,831 -- --
Payment for covenant not to compete....... (130,000) (130,000) --
Proceeds from redemption of marketable
securities, net.......................... 1,663 30,475 --
--------- --------- ---------
Net cash used in investing
activities.......................... (111,367) (75,273) (13,850)
--------- --------- ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt.............. 16,010 -- 9,864
Payments of long-term debt................ (23,649) (1,681) (15,093)
Payments of obligations under capital
leases................................... (66,055) -- (9,293)
--------- --------- ---------
Net cash used in financing
activities.......................... (73,694) (1,681) (14,522)
--------- --------- ---------
NET INCREASE (DECREASE) IN CASH AND CASH
EQUIVALENTS............................... (249,751) (147,212) 25,727
CASH AND CASH EQUIVALENTS, beginning of
period.................................... 453,490 453,490 203,739
--------- --------- ---------
CASH AND CASH EQUIVALENTS, end of period... $ 203,739 $ 600,702 $ 229,466
========= ========= =========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.

F-130
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
1. BUSINESS AND ORGANIZATION

Hallmark Air Conditioning, Inc. and subsidiary (the Company) is primarily
engaged in the installation and servicing of heating and air conditioning
systems for residential and light commercial customers in Houston and San
Antonio, Texas.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation

The consolidated financial statements include the financial statements of
Hallmark Air Conditioning, Inc. (Hallmark) and its wholly-owned subsidiary,
Jerry Albert Air Conditioning, Inc. (Jerry Albert). All significant
intercompany balances and transactions have been eliminated in consolidation.

Interim Financial Information

The interim consolidated financial statements for the three months ended May
31, 1996 are unaudited, and certain information and footnote disclosures,
normally included in financial statements prepared in accordance with
generally accepted accounting principles, have been omitted. In the opinion of
management, all adjustments, consisting only of normal recurring adjustments,
necessary to fairly present the financial position, results of operations and
cash flows with respect to the consolidated interim financial statements, have
been included. The results of operations for the interim periods are not
necessarily indicative of the results for the entire fiscal year.

Use of Estimates

The preparation of consolidated financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the
consolidated financial statements and the reported amounts of revenues and
expenses during the reporting period. Actual results could differ from those
estimates.

Revenue Recognition

Revenue is recognized upon completion of service. Revenues on service and
maintenance contracts are recognized over the life of the contract.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid investments with original maturities of three months or less to
be cash equivalents. Cash payments for interest and taxes were $32,261 and
$54,300, respectively, for the year ended February 28, 1997, and $28,310 and
$-0-, respectively, for the three months ended May 31, 1997.

Inventories

Inventories consist primarily of purchased materials and supplies. The
Company uses the first-in, first-out (FIFO) cost method to value its
inventories.

Property and Equipment

Property and equipment is stated at cost. Depreciation is computed using the
straight-line method over the estimated useful lives of the assets. Leasehold
improvements are amortized over the lesser of the remaining lease term or the
estimated useful life of the asset.

F-131
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
Expenditures for repairs and maintenance are charged to expense when
incurred. Expenditures for major renewals and betterments, which extend the
useful lives of existing equipment, are capitalized and depreciated. Upon
retirement or disposition of property or equipment, the cost and related
accumulated depreciation are removed from the accounts and any resulting gain
or loss is recognized in the statement of operations.

Income Taxes

New Accounting Pronouncement

Effective March 1, 1996, the Company adopted SFAS No. 121, Accounting for
the Impairment of Long Lived Assets and for Long-Lived Assets to Be Disposed
Of. Accordingly, in the event that facts and circumstances indicate that
property and equipment, and intangible or other assets may be impaired, an
evaluation of recoverability would be performed. If an evaluation is required,
the estimated future undiscounted cash flows associated with the asset are
compared to the asset's carrying amount to determine if a write-down to market
value is necessary. Adoption of this standard did not have a material effect
on the financial position or results of operations of the Company.

3. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Prepaid expenses and other current assets consists of the following:

<TABLE>
<CAPTION>
FEBRUARY 28, MAY 31,
1997 1997
------------ --------
<S> <C> <C>
Prepaid expenses....................................... $ 36,484 $ 14,313
Cash value of life insurance........................... 131,434 93,387
Marketable securities.................................. 30,015 30,805
Federal income taxes receivable........................ 46,324 46,324
-------- --------
$244,257 $184,829
======== ========
Other noncurrent assets consists of the following:
Covenant not to compete, net of accumulated
amortization of
$10,833 and $14,033, respectively..................... $119,167 $115,967
Other noncurrent assets................................ 12,823 12,073
-------- --------
$131,990 $128,040
======== ========
Accrued expenses consists of the following:
Accrued payroll costs and benefits..................... $100,330 $147,290
Other accrued expenses................................. 46,328 49,864
-------- --------
$146,658 $197,154
======== ========
</TABLE>

F-132
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
4. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and
equipment are as follows:

<TABLE>
<CAPTION>
ESTIMATED FEBRUARY 28, MAY 31,
USEFUL LIVES 1997 1997
------------ ------------ ----------
<S> <C> <C> <C>
Service and other vehicles............ 4-7 years $ 731,913 $ 756,447
Machinery and equipment............... 5-10 years 303,791 265,097
Office equipment, furniture and
fixtures............................. 5-10 years 43,643 43,643
Leasehold improvements................ -- 122,205 122,205
---------- ----------
1,201,552 1,187,392
Less accumulated depreciation......... (977,048) (983,968)
---------- ----------
$ 224,504 $ 203,424
========== ==========
</TABLE>

During the year ended February 28, 1997 and the three months ended May 31,
1997, the Company acquired $74,506 and $31,387, respectively, of property and
equipment in exchange for obligations under capital leases.

5. GOODWILL AND OTHER ASSETS

Other assets include a covenant not to compete related to the acquisition of
Jerry Albert. The covenant not to compete is being amortized on a straight-
line basis over the life of the covenant, which is five years.

6. SHORT- AND LONG-TERM DEBT

Short- and long-term debt consists of the following:

<TABLE>
<CAPTION>
FEBRUARY 28, MAY 31,
1997 1997
------------ --------
<S> <C> <C>
Revolving bank line of credit; borrowings not to
exceed $175,000; interest accrues at 8.75% and is
payable monthly; unpaid principal due in October
1997............................................... $ 10,000 $ --
Equipment installment notes to a bank, interest
varying from 8.5% to 9.5%; payable in monthly
installments of various amounts, including
interest, through July 1999; secured by certain
machinery and equipment............................ 28,402 36,596
Note payable to the former shareholder relating to
the purchase of all of the shares of Jerry Albert;
interest accrues at 8.5%; payable in monthly
installments, including interest, of $2,480, final
installment due May 2006........................... 190,157 186,734
-------- --------
Total short- and long-term debt................... 228,559 223,330
Less short-term borrowings and current maturities... (46,989) (31,896)
-------- --------
$181,570 $191,434
======== ========
</TABLE>

F-133
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
The aggregate maturities of short- and long-term debt as of February 28, 1997
are as follows:

<TABLE>
<S> <C>
1998................................................................ $ 46,989
1999................................................................ 33,798
2000................................................................ 31,263
2001................................................................ 29,756
2002................................................................ 29,756
Thereafter.......................................................... 56,997
--------
$228,559
========
</TABLE>

7. INCOME TAXES

Income tax expense consists of the following:

<TABLE>
<CAPTION>
THREE
MONTHS
YEAR ENDED ENDED
FEBRUARY 28, MAY 31,
1997 1997
------------ -------
<S> <C> <C>
Federal:
Current............................................... $ 7,976 $ --
Deferred.............................................. (114) --
State:
Current............................................... 10,252 2,563
Deferred.............................................. -- --
------- ------
$18,114 $2,563
======= ======
</TABLE>

Total income tax expense differs from the amount computed by applying the
U.S. federal statutory income tax rate of 34% to loss before income tax
provision as a result of the following:

<TABLE>
<CAPTION>
FEBRUARY 28, MAY 31,
1997 1997
------------ --------
<S> <C> <C>
Benefit at the statutory rate........................ $ (872) $(33,512)
Increase resulting from:
State income taxes, net of federal benefit......... 10,252 2,563
Nondeductible expenses............................. 3,468 1,192
Increase in valuation allowance.................... -- 34,239
Other.............................................. 5,266 (1,919)
------- --------
$18,114 $ 2,563
======= ========
</TABLE>

F-134
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
The components of the deferred income tax assets and liabilities are as
follows:

<TABLE>
<CAPTION>
FEBRUARY 28, MAY 31,
1997 1997
------------ --------
<S> <C> <C>
Deferred income tax assets:
Net operating loss carryforward..................... $ -- $ 31,043
Deferred service contract revenues.................. 133,160 135,757
Accrued customer protection......................... 15,358 13,131
Allowance for doubtful accounts..................... 1,288 2,747
Other............................................... 13,867 12,088
Valuation allowance................................. -- (34,239)
-------- --------
Total deferred income tax asset................... 163,673 160,527
-------- --------
Deferred income tax liabilities:
Depreciation........................................ 19,284 19,283
Other............................................... 3,145 --
-------- --------
Total deferred income tax liability............... 22,429 19,283
-------- --------
Net deferred income tax asset..................... $141,244 $141,244
======== ========
</TABLE>

Management believes it is more likely than not the Company will realize the
benefits of the net deferred income tax asset.

8. LEASES

The Company is obligated under various capital leases, for service and other
vehicles, that expire at various dates through June 2000. At February 28, 1997
and May 31, 1997, the gross amount of property and equipment and related
accumulated amortization recorded under capital leases were as follows:

<TABLE>
<CAPTION>
FEBRUARY 28, MAY 31,
1997 1997
------------ ---------
<S> <C> <C>
Service and other vehicles........................... $ 259,143 $ 290,530
Less accumulated depreciation........................ (127,548) (141,290)
--------- ---------
$ 131,595 $ 149,240
========= =========
</TABLE>

The Company also has several noncancelable operating leases, primarily for
service and other vehicles, that expire over the next three years. These
leases generally contain renewal options for periods ranging from three to
five years and require the Company to pay all executory costs such as
maintenance and insurance. Rental payments include minimum rentals plus
contingent rentals based on mileage. Rental expense for these operating leases
during the year ended February 28, 1997 and the three months ended May 31,
1997 was approximately $18,600 and $5,000, respectively.

F-135
<PAGE>

HALLMARK AIR CONDITIONING, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
Future minimum lease payments under noncancelable operating leases (with
initial or remaining lease terms in excess of one year) and future minimum
capital lease payments as of February 28, 1997 are as follows:

<TABLE>
<CAPTION>
CAPITAL OPERATING
LEASES LEASES
-------- ---------
<S> <C> <C>
Year ending February 28 or 29,
1998.................................................... $ 69,628 $11,789
1999.................................................... 35,699 59,928
2000.................................................... 19,034 --
-------- -------
Total minimum lease payments............................ 124,361 $71,717
=======
Less current obligations under capital leases............. 69,628
--------
Obligations under capital leases, net................... $ 54,733
========
</TABLE>

The Company leases its primary operations facility from a shareholder and
executive officer of the Company. The lease is for an initial one-year term
expiring in 1997 with an annual renewal thereafter and has been classified as
an operating lease and is included in the data presented above. Total rent
expense associated with this lease for the year ended February 28, 1997 and
the three months ended May 31, 1997 was approximately $96,000 and $24,000,
respectively.

9. EMPLOYEE BENEFIT PLAN

During January 1997, the Company established a contributory 401(k) plan
covering substantially all employees. Contributions to this plan, determined
annually, are at the discretion of the Board of Directors. Authorized
contributions for the year ended February 28, 1997 amounted to $830.

10. COMMITMENTS AND CONTINGENCIES

The Company is involved in various claims and legal actions arising in the
ordinary course of business. In the opinion of management, the ultimate
disposition of these matters will not have a material adverse effect on the
Company's consolidated financial position, results of operations or liquidity.

11. FINANCIAL INSTRUMENTS

The Company's financial instruments consist of cash and cash equivalents,
marketable securities (carried at fair value), and short- and long-term debt.
The Company believes that the carrying value of these instruments on the
accompanying consolidated balance sheets approximates their fair value.

12. ACQUISITION OF JERRY ALBERT

The Company acquired all of the outstanding shares of Jerry Albert on May 1,
1996, in exchange for a $200,000 note payable to the former shareholder of
Jerry Albert. The acquisition was accounted for as a purchase and the
operations of Jerry Albert have been included in the accompanying financial
statements since the date of acquisition. Based upon the relative size of the
acquisition, the related pro forma data is not presented.

13. SUBSEQUENT EVENT

Effective June 1, 1997 Group Maintenance America Corp. (GroupMAC) acquired
all of the outstanding shares of the Company for a combination of cash,
preferred stock and common stock of GroupMAC. All of the preferred shares
issued in connection with the acquisition of the business will be redeemed for
cash concurrent with the consummation of the initial public offering of the
common stock of GroupMAC.

F-136
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
Sibley Services, Incorporated:

We have audited the accompanying balance sheets of Sibley Services,
Incorporated (the Company) as of October 31, 1996 and June 30, 1997, and the
related statements of operations, shareholders' equity and cash flows for the
year ended October 31, 1996 and the eight months ended June 30, 1997. These
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Sibley Services,
Incorporated as of October 31, 1996 and June 30, 1997, and the results of its
operations and its cash flows for the year ended October 31, 1996 and the
eight months ended June 30, 1997 in conformity with generally accepted
accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
July 25, 1997

F-137
<PAGE>

SIBLEY SERVICES, INCORPORATED

BALANCE SHEETS

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- ----------
<S> <C> <C>
ASSETS
CURRENT ASSETS:
Cash and cash equivalents............................. $ 76,034 $ 40,710
Accounts receivable................................... 693,839 635,358
Inventories........................................... 89,649 126,146
Costs and estimated earnings in excess of billings on
uncompleted contracts................................ 160,092 55,464
Due from related parties and employees................ 11,170 12,900
Prepaid expenses and other current assets............. 242,851 243,957
---------- ----------
Total current assets................................. 1,273,635 1,114,535
PROPERTY AND EQUIPMENT, net............................ 89,422 86,854
---------- ----------
Total assets......................................... $1,363,057 $1,201,389
========== ==========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
Short-term borrowings and current maturities of long-
term debt............................................ $ 222,591 $ 307,253
Accounts payable...................................... 337,452 226,854
Accrued expenses...................................... 127,036 57,137
Billings in excess of costs and estimated earnings on
uncompleted contracts................................ 3,731 73,479
Deferred service contract revenue..................... 5,463 --
Deferred income taxes................................. 31,474 32,197
---------- ----------
Total current liabilities............................ 727,747 696,920
LONG-TERM DEBT, net of current maturities.............. 82,177 69,115
DEFERRED INCOME TAXES.................................. 9,899 16,668
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock--no par value; 1,000 shares authorized;
534 shares issued
and outstanding...................................... 21,424 21,424
Retained earnings..................................... 626,728 502,180
Treasury stock, 138 shares at cost.................... (104,918) (104,918)
---------- ----------
Total shareholders' equity........................... 543,234 418,686
---------- ----------
Total liabilities and shareholders' equity......... $1,363,057 $1,201,389
========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-138
<PAGE>

SIBLEY SERVICES, INCORPORATED

STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
EIGHT MONTHS ENDED
YEAR ENDED JUNE 30,
OCTOBER 31, ----------------------
1996 1996 1997
----------- ---------- ----------
(UNAUDITED)
<S> <C> <C> <C>
REVENUES................................... $6,962,485 $4,945,490 $2,823,468
COST OF SERVICES........................... 5,334,694 3,792,960 2,111,619
---------- ---------- ----------
Gross profit............................. 1,627,791 1,152,530 711,849
SELLING, GENERAL AND ADMINISTRATIVE
EXPENSES.................................. 1,497,773 955,427 846,902
---------- ---------- ----------
Income (loss) from operations............ 130,018 197,103 (135,053)
OTHER INCOME (EXPENSE):
Interest expense.......................... (31,160) (17,755) (15,182)
Other..................................... 15,516 13,547 4,404
---------- ---------- ----------
Income (loss) before income tax
provision............................... 114,374 192,895 (145,831)
INCOME TAX PROVISION....................... 42,030 70,885 (21,283)
---------- ---------- ----------
NET INCOME (LOSS).......................... $ 72,344 $ 122,010 $ (124,548)
========== ========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-139
<PAGE>

SIBLEY SERVICES, INCORPORATED

STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
TOTAL
COMMON RETAINED TREASURY SHAREHOLDERS'
STOCK EARNINGS STOCK EQUITY
------- --------- --------- -------------
<S> <C> <C> <C> <C>
BALANCE, October 31, 1995........... $21,424 $ 554,384 $(104,918) $ 470,890
Net income........................ -- 72,344 -- 72,344
------- --------- --------- ---------
BALANCE, October 31, 1996........... 21,424 626,728 (104,918) 543,234
Net loss.......................... -- (124,548) -- (124,548)
------- --------- --------- ---------
BALANCE, June 30, 1997.............. $21,424 $ 502,180 $(104,918) $ 418,686
======= ========= ========= =========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-140
<PAGE>

SIBLEY SERVICES, INCORPORATED

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
EIGHT MONTHS ENDED
YEAR ENDED JUNE 30,
OCTOBER 31, --------------------
1996 1996 1997
----------- --------- ---------
(UNAUDITED)
<S> <C> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)........................... $ 72,344 $ 122,010 $(124,548)
Adjustments to reconcile net income (loss)
to net cash
used in operating activities:
Depreciation and amortization............. 23,899 15,235 16,185
Gain on disposal of property and
equipment................................ (7,090) -- --
Deferred income taxes..................... 21,110 35,442 7,492
Changes in operating assets and
liabilities:
(Increase) decrease in--
Accounts receivable..................... (38,275) (618,597) 58,481
Inventories............................. (15,047) (54,979) (36,497)
Costs and estimated earnings in excess
of billings on uncompleted contracts... (82,416) (48,664) 104,628
Due from related parties and employees.. 7,551 (21,266) (1,730)
Unbilled job costs...................... 3,350 -- --
Prepaid expenses and other current
assets................................. (121,387) (52,617) (1,106)
Increase (decrease) in--
Accounts payable........................ 62,758 310,318 (110,598)
Accrued expenses........................ (18,964) (78,570) (69,899)
Billings in excess of costs and
estimated earnings on uncompleted
contracts.............................. (61,066) 83,948 69,748
Deferred service contract revenue....... (7,311) (22,771) (5,463)
Income taxes payable.................... (59,089) -- --
--------- --------- ---------
Net cash used in operating activities.. (219,633) (330,511) (93,307)
--------- --------- ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment......... (20,802) (8,868) (13,617)
Proceeds from sales of property and
equipment.................................. 7,090 -- --
--------- --------- ---------
Net cash used in investing activities.. (13,712) (8,868) (13,617)
--------- --------- ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
Net borrowings on line of credit............ 207,000 237,000 81,000
Payment on long-term note payable........... -- -- (9,400)
--------- --------- ---------
Net cash provided by financing
activities............................ 207,000 237,000 71,600
--------- --------- ---------
NET DECREASE IN CASH AND CASH EQUIVALENTS.... (26,345) (102,379) (35,324)
CASH AND CASH EQUIVALENTS, beginning of
period...................................... 102,379 102,379 76,034
--------- --------- ---------
CASH AND CASH EQUIVALENTS, end of period..... $ 76,034 $ -- $ 40,710
========= ========= =========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-141
<PAGE>

SIBLEY SERVICES, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
1. BUSINESS AND ORGANIZATION

Sibley Services, Incorporated (the Company) is primarily engaged in the
installation and servicing of heating and air conditioning systems for
commercial and industrial customers in Memphis, Tennessee and the surrounding
area.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

Use of Estimates

Revenue Recognition

Revenues from work orders are recognized as services are performed. Revenues
on service and maintenance contracts are recognized over the life of the
contract. Revenues from construction contracts are recognized on a percentage
of completion basis using the cost-to-cost method. Provisions for estimated
losses on uncompleted contracts are made in the period in which such losses
are determined. Changes in job performance, job conditions, and estimated
profitability may result in revisions to costs and revenues and are recognized
in the period in which the revisions are determined.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid investments with original maturities of three months or less to
be cash equivalents. Cash payments for interest and taxes were $26,004 and
$130,791, respectively, for the year ended October 31, 1996. Cash payments for
interest and taxes were $10,589 and $9,500, respectively, for the eight months
ended June 30, 1997.

Inventories

Inventories consist primarily of purchased materials. The inventory is
valued at the lower of cost or market, with cost determined on a first-in,
first-out (FIFO) basis.

Property and Equipment

F-142
<PAGE>

SIBLEY SERVICES, INCORPORATED

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

Income Taxes

New Accounting Pronouncement

3. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Prepaid expenses and other current assets consists of the following:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Cash value of life insurance........................... $128,976 $144,012
Prepaid expenses....................................... 64,213 50,713
Refundable income taxes................................ 49,662 42,123
Other.................................................. -- 7,109
-------- --------
$242,851 $243,957
======== ========
</TABLE>

Cash value of life insurance represents the cash value of five life
insurance policies. The Company is the owner and beneficiary of one policy
with a cash value of $21,417 at June 30, 1997 and a face value of $200,000.
There are four split-dollar policies with a cash value totaling $122,595 at
June 30, 1997. The Company also has a contingent receivable of $58,855 on the
four split-dollar policies at June 30, 1997. The contingent receivable is the
difference between the total premiums paid to date and the cash value. Per the
split-dollar agreement the Company will be reimbursed for 100% of the premiums
paid upon the death of the insured.

Accrued expenses consists of the following:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Accrued payroll and related expenses.................... $ 94,670 $14,026
Other accrued expenses.................................. 32,366 43,111
-------- -------
$127,036 $57,137
======== =======
</TABLE>

F-143
<PAGE>

SIBLEY SERVICES, INCORPORATED

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

4. COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS

A summary of the status of uncompleted contracts is as follows:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Costs incurred........................................ $222,130 $475,756
Estimated earnings recognized......................... 90,036 124,870
-------- --------
312,166 600,626
Less billings on contracts............................ 155,805 618,641
-------- --------
$156,361 $(18,015)
======== ========
</TABLE>

These costs and estimated earnings on uncompleted contracts are included in
the accompanying balance sheets under the following captions:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Costs and estimated earnings in excess of billings on
uncompleted contracts............................... $160,092 $ 55,464
Billings in excess of costs and estimated earnings on
uncompleted contracts............................... (3,731) (73,479)
-------- --------
$156,361 $(18,015)
======== ========
</TABLE>

5. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and equipment
are as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL OCTOBER 31, JUNE 30,
LIVES 1996 1997
---------- ----------- ---------
<S> <C> <C> <C>
Service and other vehicles................. 4-7 years $ 81,742 $ 85,047
Machinery and equipment.................... 5-10 years 123,864 126,105
Office equipment, furniture and fixtures... 3-10 years 211,773 216,554
Leasehold improvements..................... -- 121,312 124,602
--------- ---------
538,691 552,308
Less accumulated depreciation.............. (449,269) (465,454)
--------- ---------
Property and equipment, net.............. $ 89,422 $ 86,854
========= =========
</TABLE>

6. SHORT- AND LONG-TERM DEBT

Short- and long-term debt consists of the following:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Credit facility in the amount of $500,000 with a bank,
bearing interest at prime plus 1% (9.5% as of June
30, 1997),
secured by trade receivables and inventory........... $207,000 $288,000
Note payable to shareholder with original face amount
of $125,000,
noninterest-bearing, discounted at 4.81%, $481 due
weekly,
including interest................................... 97,768 88,368
-------- --------
Total short- and long-term debt..................... 304,768 376,368
Less short-term borrowings and current maturities..... (222,591) (307,253)
-------- --------
$ 82,177 $ 69,115
======== ========
</TABLE>

F-144
<PAGE>

SIBLEY SERVICES, INCORPORATED

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

The Company has an available line of credit of $500,000 through July 31,
1997. Advances are due April 30, 1997 and accrue interest at prime plus 1%.
The line of credit is secured by accounts receivable and inventory and the
personal guarantees of certain shareholders. Outstanding on the line of credit
as of October 31, 1996 and as of June 30, 1997 was $207,000 and $288,000,
respectively. The line of credit was repaid in connection with the Company's
acquisition, see note 14.

The Company purchased 125 shares of its stock from a shareholder during the
fiscal year ending October 31, 1994. The purchase price was $125,000 payable
at $481 per week, beginning in 1997, for 260 weeks with no interest. The note
is unsecured and has been discounted using an interest rate of 4.81%. Interest
has been accrued through October 31, 1996, in the amount of $14,585.

The aggregate maturities of the short- and long-term debt as of October 31,
1996 are as follows:

7. INCOME TAXES

Income tax expense (benefit) consists of:

<TABLE>
<CAPTION>
EIGHT
MONTHS
YEAR ENDED ENDED
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Federal
Current............................................... $15,961 $(20,000)
Deferred.............................................. 17,813 6,620
State
Current............................................... 4,959 (8,775)
Deferred.............................................. 3,297 872
------- --------
$42,030 $(21,283)
======= ========
</TABLE>

Total income tax expense (benefit) differs from the amount computed by
applying the U.S. federal statutory income tax rate of 34% to income (loss)
before income tax provision as a result of the following:

<TABLE>
<CAPTION>
EIGHT
MONTHS
YEAR ENDED ENDED
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Tax provision (benefit) at statutory rate............. $ 38,887 $(49,583)
Increase (decrease) resulting from:
State income taxes, net of federal benefit.......... 5,449 (5,216)
Nondeductible expenses.............................. 7,897 4,798
Tax consequences of graduated rates................. (10,203) 28,718
-------- --------
$ 42,030 $(21,283)
======== ========
</TABLE>

F-145
<PAGE>

SIBLEY SERVICES, INCORPORATED

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

The components of deferred income tax liability are as follows:

<TABLE>
<CAPTION>
OCTOBER 31, JUNE 30,
1996 1997
----------- --------
<S> <C> <C>
Deferred income tax liabilities:
Uncompleted contracts.................................. $31,474 $32,197
Depreciation........................................... 9,899 16,668
------- -------
Total deferred income tax liability................... $41,373 $48,865
======= =======
</TABLE>

8. LEASES

Operating leases for certain facilities, service and other vehicles and
office equipment expire at various dates through 2000. Certain leases contain
renewal options. Approximate minimum future rental payments as of October 31,
1996 are as follows:

<TABLE>
<CAPTION>
TOTAL
--------
<S> <C>
1997................................................................ $176,639
1998................................................................ 94,032
1999................................................................ 62,677
2000................................................................ 10,866
--------
$344,214
========
</TABLE>

9. RELATED PARTY TRANSACTIONS

The Company leased a vehicle, computer equipment, its office and warehouse
from Sibley Services, Incorporated (see note 8). The owner of Sibley Services,
Incorporated, is related to a shareholder of Sibley Services, Inc. For the
year ended October 31, 1996 and the eight months ended June 30, 1997 the
Company paid $42,490 and $22,816, respectively, related to these leases.

The Company leased twenty-five vehicles and twenty-two vehicles as of
October 31, 1996 and June 30, 1997, respectively and computer equipment from
JDT Leasing Company (see note 8) which is 100% owned by a shareholder. For the
year ended October 31, 1996 and the eight months ended June 30, 1997 the
Company paid $129,332 and $94,995, respectively, related to these leases.

The Company was owed $5,733 and $10,389 by a shareholder at October 31, 1996
and June 30, 1997, respectively. This receivable represents advances to the
shareholder and is unsecured.

The Company also has a note payable to a former shareholder (see note 6).

10. EMPLOYEE BENEFIT PLANS

The Company has a cafeteria plan for its eligible employees. Benefits under
the plan include medical and dental insurance.

In 1996, the Company established a 401(k) plan for its qualified employees.
Eligibility requires one year of service and age 21 or over. Employees may
elect to defer up to 10% of their compensation. The Company has agreed to
match the employee contribution 100% up to 5% of compensation. Contributions
made by the Company of $53,646 and $36,733 were charged to operations in the
year ended October 31, 1996 and the eight months ended June 30, 1997,
respectively.

F-146
<PAGE>

SIBLEY SERVICES, INCORPORATED

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

11. SALES TO SIGNIFICANT CUSTOMER

Contract revenue billed to one customer amounted to $1,302,289 or 19% of
total sales for the year ended October 31, 1996. At October 31, 1996, amounts
due from this customer included in accounts receivables were $156,885.

12. COMMITMENTS AND CONTINGENCIES

13. FINANCIAL INSTRUMENTS

14. SUBSEQUENT EVENT

Effective July 1, 1997 Group Maintenance America Corp. (GroupMAC) acquired
all of the outstanding shares of the Company for a combination of cash,
preferred stock and common stock of GroupMAC. All of the preferred shares
issued in connection with the acquisition of the business will be redeemed for
cash concurrent with the consummation of the initial public offering of the
common stock of GroupMAC.

F-147
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
Southeast Mechanical Service, Inc.:

We have audited the accompanying balance sheets of Southeast Mechanical
Service, Inc. as of December 31, 1996 and June 30, 1997, and the related
statements of operations, shareholders' equity and cash flows for the year
ended December 31, 1996 and the six months ended June 30, 1997. These
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Southeast Mechanical
Service, Inc. as of December 31, 1996 and June 30, 1997 and the results of its
operations and its cash flows for the year ended December 31, 1996 and the six
months ended June 30, 1997 in conformity with generally accepted accounting
principles.

KPMG Peat Marwick LLP

Houston, Texas
July 18, 1997

F-148
<PAGE>

SOUTHEAST MECHANICAL SERVICE, INC.

BALANCE SHEETS

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
1996 1997
------------ ----------
<S> <C> <C>
ASSETS
CURRENT ASSETS:
Cash and cash equivalents............................ $ 45,852 $ 74,466
Accounts receivable.................................. 726,944 935,433
Inventories.......................................... 63,530 64,133
Costs and estimated earnings in excess of billings on
uncompleted contracts............................... 1,910 1,229
Due from related parties and employees............... 2,268 42,420
Prepaid expenses and other current assets............ 30,471 35,955
---------- ----------
Total current assets............................... 870,975 1,153,636
PROPERTY AND EQUIPMENT, net............................ 498,762 430,188
---------- ----------
Total assets....................................... $1,369,737 $1,583,824
========== ==========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
Short-term borrowings and current maturities of long-
term debt........................................... $ 311,779 $ 135,254
Accounts payable..................................... 94,911 218,453
Accrued expenses..................................... 23,585 136,127
Billings in excess of costs and estimated earnings on
uncompleted contracts............................... 24,531 125,317
Due to related parties............................... -- 371,042
---------- ----------
Total current liabilities.......................... 454,806 986,193
LONG-TERM DEBT, net of current maturities.............. 273,403 220,726
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock--$1.00 par value; 1,500 shares
authorized,
300 shares issued and outstanding................... 300 300
Additional paid-in capital........................... 5,700 5,700
Retained earnings.................................... 635,528 370,905
---------- ----------
Total shareholders' equity......................... 641,528 376,905
---------- ----------
Total liabilities and shareholders' equity......... $1,369,737 $1,583,824
========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-149
<PAGE>

SOUTHEAST MECHANICAL SERVICE, INC.

STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
SIX MONTHS ENDED
YEAR ENDED JUNE 30,
DECEMBER 31, ----------------------
1996 1996 1997
------------ ---------- ----------
(UNAUDITED)
<S> <C> <C> <C>
REVENUES.................................. $5,281,777 $2,847,310 $2,358,229
COST OF SERVICES.......................... 3,830,398 2,006,815 1,724,977
---------- ---------- ----------
Gross profit............................ 1,451,379 840,495 633,252
SELLING, GENERAL AND ADMINISTRATIVE
EXPENSES................................. 865,939 388,095 408,957
---------- ---------- ----------
Income from operations.................. 585,440 452,400 224,295
OTHER INCOME (EXPENSE):
Interest expense........................ (54,682) (28,379) (42,905)
Other................................... (15,360) (3,304) 29
---------- ---------- ----------
NET INCOME................................ $ 515,398 $ 420,717 $ 181,419
========== ========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-150
<PAGE>

SOUTHEAST MECHANICAL SERVICE, INC.

STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
ADDITIONAL TOTAL
COMMON PAID-IN RETAINED SHAREHOLDERS'
STOCK CAPITAL EARNINGS EQUITY
------ ---------- --------- -------------
<S> <C> <C> <C> <C>
BALANCE, December 31, 1995........... $300 $5,700 $ 440,035 $ 446,035
Net income......................... -- -- 515,398 515,398
Distributions to shareholders...... -- -- (319,905) (319,905)
---- ------ --------- ---------
BALANCE, December 31, 1996........... 300 5,700 635,528 641,528
Net income......................... -- -- 181,419 181,419
Distributions to shareholders...... -- -- (446,042) (446,042)
---- ------ --------- ---------
BALANCE, June 30, 1997............... $300 $5,700 $ 370,905 $ 376,905
==== ====== ========= =========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-151
<PAGE>

SOUTHEAST MECHANICAL SERVICE, INC.

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
SIX MONTHS ENDED
JUNE 30,
DECEMBER 31, ---------------------
1996 1996 1997
------------ ----------- ---------
(UNAUDITED)
<S> <C> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income................................ $ 515,398 $ 420,717 $ 181,419
Adjustments to reconcile net income to net
cash
provided by operating activities:
Depreciation............................ 124,074 62,625 74,826
Loss on disposal of property and
equipment.............................. 15,426 1,681 --
Changes in operating assets and
liabilities:
(Increase) decrease in--
Accounts receivable................... (89,322) (188,594) (208,489)
Inventories........................... -- (1,290) (603)
Costs and estimated earnings in excess
of billings on uncompleted contracts. 23,664 (12,705) 681
Due from related parties and
employees............................ 536 1,949 (40,152)
Prepaid expenses and other current
assets............................... (11,937) (26,155) (5,484)
Increase (decrease) in--
Accounts payable...................... (51,579) 49,418 123,542
Accrued expenses...................... (8,360) 3,542 112,542
Billings in excess of costs and
estimated earnings on uncompleted
contracts............................ (11,874) 25,678 100,786
--------- --------- ---------
Net cash provided by operating
activities.......................... 506,026 336,866 339,068
--------- --------- ---------
CASH FLOWS USED IN INVESTING ACTIVITIES:
Purchases of property and equipment....... (185,972) (60,537) (6,252)
--------- --------- ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from short-term borrowings and
long-term debt........................... 163,552 120,863 --
Payments of short-term borrowings and
long-term debt........................... (168,518) (68,110) (229,202)
Dividends paid............................ (319,905) (319,905) (75,000)
--------- --------- ---------
Net cash used in financing
activities.......................... (324,871) (267,152) (304,202)
--------- --------- ---------
NET INCREASE (DECREASE) IN CASH AND CASH
EQUIVALENTS............................... (4,817) 9,177 28,614
CASH AND CASH EQUIVALENTS, beginning of
period.................................... 50,669 50,669 45,852
--------- --------- ---------
CASH AND CASH EQUIVALENTS, end of period... $ 45,852 $ 59,846 $ 74,466
========= ========= =========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-152
<PAGE>

SOUTHEAST MECHANICAL SERVICE, INC.

NOTES TO FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

Southeast Mechanical Service, Inc. (the Company) is primarily engaged in the
servicing of commercial heating and air conditioning systems in Southeast
Florida including Broward, Dade and Palm Beach Counties.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

The interim financial statements for the six months ended June 30, 1996, are
unaudited, and certain information and footnote disclosures, normally included
in financial statements prepared in accordance with generally accepted
accounting principals, have been omitted. In the opinion of management, all
adjustments, consisting only of normal recurring adjustments, necessary to
fairly present the financial position, results of operations and cash flows
with respect to the interim financial statements, have been included. The
results of operations for the interim periods are not necessarily indicative
of the results for the entire fiscal year.

Use of Estimates

Revenue Recognition

Revenues from work orders are recognized as services are performed. Revenues
on service and maintenance contracts are recognized over the life of the
contract. Revenues from construction contracts are recognized on a percentage
of completion basis using the cost-to-cost method. Provisions for estimated
losses on uncompleted contracts are made in the period in which such losses
are determined. Changes in job performance, job conditions, and estimated
profitability may result in revisions to costs and revenues and are recognized
in the period in which the revisions are determined.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid debt instruments with a maturity of three months or less to be
cash equivalents. Cash payments for interest were $16,406 and $27,839 for the
year ended December 31, 1996 and the six months ended June 30, 1997,
respectively.

Inventories

Inventories consist of parts and supplies used in the service portion of the
Company's operation. The inventory is valued at the lower of cost or market,
with cost determined on a first-in, first-out (FIFO) basis.

Property and Equipment

F-153
<PAGE>

SOUTHEAST MECHANICAL SERVICE, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
Upon retirement or disposition of property or equipment, the cost and related
accumulated depreciation are removed from the accounts and any resulting gain
or loss is recognized in the statements of operations.

Warranty Costs

The Company warrants labor for the first year after installation on new air
conditioning and heating units. The Company generally warrants labor for 30
days after servicing of existing air conditioning and heating units. A reserve
for warranty costs is recorded upon completion of installation or service.

Income Taxes

New Accounting Pronouncement

3. COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS

A summary of the status of uncompleted contracts is as follows:

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
1996 1997
------------ ---------
<S> <C> <C>
Costs incurred...................................... $ 8,013 $ 76,854
Estimated earnings recognized....................... 3,578 56,343
-------- ---------
11,591 133,197
Less billings on contracts.......................... (34,212) (257,285)
-------- ---------
$(22,621) $(124,088)
======== =========
</TABLE>

These costs and estimated earnings on uncompleted contracts are included in
the accompanying balance sheets under the following captions:

<TABLE>
<S> <C> <C>
Costs and estimated earnings in excess of billings on
uncompleted contracts................................ $ 1,910 $ 1,229
Billings in excess of costs and estimated earnings on
uncompleted contracts................................ (24,531) (125,317)
-------- ---------
$(22,621) $(124,088)
======== =========
</TABLE>

F-154
<PAGE>

SOUTHEAST MECHANICAL SERVICE, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

4. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and equipment
are as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL DECEMBER 31, JUNE 30,
LIVES 1996 1997
----------- ------------ ----------
<S> <C> <C> <C>
Land................................... -- $ 57,839 $ 57,839
Buildings and improvements............. 20-30 years 273,896 273,896
Service and other vehicles............. 4-7 years 594,809 594,809
Machinery and equipment................ 5-10 years 73,250 73,250
Office equipment, furniture and
fixtures.............................. 5-10 years 161,686 167,938
---------- ----------
1,161,480 1,167,732
Less accumulated depreciation.......... (662,718) (737,544)
---------- ----------
$ 498,762 $ 430,188
========== ==========
</TABLE>

5. SHORT- AND LONG-TERM DEBT

Short- and long-term debt consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31, JUNE 30,
1996 1997
------------ --------
<S> <C> <C>
Note payable to a bank in connection with a working
capital credit line facility. Interest payable
monthly at the bank's prime rate plus .50% (8.75% at
December 31, 1996 and 8.5% at June 30, 1997),
principal amount due in April, 1997. The Company has
an unused portion of this credit line facility
available at December 31, 1996 of $113,000 and
$281,000 at June 30, 1997. This credit line facility
is collateralized by the Company's accounts
receivable, inventory, property and equipment, and
the personal guarantees of the shareholders and
certain spouses..................................... $187,000 $ 19,000
Installment contracts payable at $8,201 per month,
including interest at 7.75% to 9.50%, until October,
1998 and at lesser amounts thereafter until
November, 2000, collateralized by automotive
equipment with a net book value of approximately
$239,000. Balance net of deferred interest of
$32,935 (current portion $17,384)................... 243,810 204,482
Mortgage note payable in monthly installments of
$1,259 plus interest at .50% above the bank's prime
rate (8.75% at December 31, 1996 and 8.5% at June
30, 1997) until January, 2005. The mortgage note is
collateralized by a building and land with a net
book value of approximately $169,000................ 123,350 115,798
Note payable to a bank, payable at $2,387 per month
plus interest at .50% above the bank's prime rate
(8.75% at December 31, 1996 and 8.5% at June 30,
1997) through December, 1997. This note is
collateralized by the Company's accounts receivable,
inventory and certain property and equipment........ 31,022 16,700
-------- --------
Total short- and long-term debt.................. 585,182 355,980
Less short-term borrowings and current maturities.... 311,779 135,254
-------- --------
$273,403 $220,726
======== ========
</TABLE>

F-155
<PAGE>

SOUTHEAST MECHANICAL SERVICE, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

The aggregate maturities of the short- and long-term debt as of December 31,
1996 are as follows:

<TABLE>
<S> <C>
1997................................................................ $311,779
1998................................................................ 101,137
1999................................................................ 68,009
2000................................................................ 41,326
2001................................................................ 15,104
Thereafter.......................................................... 47,827
--------
$585,182
========
</TABLE>
6. RELATED PARTY TRANSACTIONS

During the year ended December 31, 1996 and the six months ended June 30,
1997, the Company paid consulting fees totaling $71,800 and $10,900,
respectively to various affiliated corporations which are owned by certain of
its shareholders.

Interest expense in connection with shareholder loans repaid during the year
ended December 31, 1996 and the six months ended June 30, 1997 amounted to
$3,680 and $15,066, respectively.

The Company rents storage space on a month-to-month basis from a partnership
owned by its shareholders. Rent expense related to this rental agreement
totaled $4,969 for the year ended December 31, 1996 and $2,461 for the six
months ended June 30, 1997.

The Company's policy is to distribute to the shareholders pass-through
"Chapter S" income in the first month following year end. Such distributions
are made in the form of notes payable which bear interest at 10% and are paid
during the succeeding year. In January 1997, notes totaling $446,042 were
issued to shareholders in accordance with this policy. At June 30, 1997, there
was $371,042 still outstanding on these notes.

7. COMMITMENTS AND CONTINGENCIES

The Company is involved in various claims and legal actions arising in the
ordinary course of business. In the opinion of management, the ultimate
disposition of these matters will not have a material adverse effect on the
Company's financial position, results of operations or liquidity.

8. FINANCIAL INSTRUMENTS

9. ACQUISITION OF COMPANY

F-156
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
Willis Refrigeration, Air Conditioning & Heating, Inc.:

We have audited the accompanying balance sheets of Willis Refrigeration, Air
Conditioning & Heating, Inc. (the Company) as of March 31, 1997 and June 30,
1997, and the related statements of operations, shareholders' equity and cash
flows for the year ended March 31, 1997 and the three months ended June 30,
1997. These financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements based on our audits.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Willis Refrigeration, Air
Conditioning & Heating, Inc. as of March 31, 1997 and June 30, 1997, and the
results of its operations and its cash flows for the year ended March 31, 1997
and the three months ended June 30, 1997 in conformity with generally accepted
accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
July 25, 1997

F-157
<PAGE>

WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.

BALANCE SHEETS

<TABLE>
<CAPTION>
MARCH 31, JUNE 30,
1997 1997
---------- ----------
<S> <C> <C>
ASSETS
CURRENT ASSETS:
Cash and cash equivalents............................... $ 774,445 $ 788,191
Accounts receivable, net of allowance for doubtful
accounts
of $564,648 and $539,673, respectively................. 1,288,442 1,390,882
Inventories............................................. 190,276 194,272
Deferred income taxes................................... 240,441 229,950
Prepaid expenses........................................ 12,377 8,873
---------- ----------
Total current assets................................... 2,505,981 2,612,168
PROPERTY AND EQUIPMENT, net.............................. 513,888 512,485
MARKETABLE SECURITIES.................................... 263,175 278,850
OTHER NONCURRENT ASSETS.................................. 80,585 81,538
---------- ----------
Total assets........................................... $3,363,629 $3,485,041
========== ==========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
Short-term borrowings................................... $ 222,828 $ 220,731
Accounts payable........................................ 409,302 270,115
Accrued expenses........................................ 86,843 111,099
Deferred service contract revenue....................... 199,194 229,235
Income taxes payable.................................... 230,913 283,747
---------- ----------
Total current liabilities.............................. 1,149,080 1,114,927
DEFERRED INCOME TAXES.................................... 142,005 147,072
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock--no par value, stated value of $10 per
share;
500 shares authorized; 405 shares issued and
outstanding............................................ 4,050 4,050
Retained earnings....................................... 1,918,330 2,059,767
Net unrealized gain on marketable securities............ 150,164 159,225
---------- ----------
Total shareholders' equity............................. 2,072,544 2,223,042
---------- ----------
Total liabilities and shareholders' equity............. $3,363,629 $3,485,041
========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-158
<PAGE>

WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.

STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
THREE MONTHS ENDED
YEAR ENDED JUNE 30,
MARCH 31, ----------------------
1997 1996 1997
---------- ---------- ----------
(UNAUDITED)
<S> <C> <C> <C>
REVENUES................................... $6,780,747 $1,643,275 $1,743,102
COST OF SERVICES........................... 5,033,377 1,318,762 1,257,766
---------- ---------- ----------
Gross profit............................. 1,747,370 324,513 485,336
SELLING, GENERAL AND ADMINISTRATIVE
EXPENSES.................................. 1,205,393 369,048 275,694
---------- ---------- ----------
Income (loss) from operations............ 541,977 (44,535) 209,642
OTHER INCOME (EXPENSE):
Interest expense.......................... (25,379) (7,343) (4,864)
Interest income........................... 7,926 3,257 10,449
Other..................................... 48,464 9,655 6,353
---------- ---------- ----------
Income (loss) before income tax
provision............................... 572,988 (38,966) 221,580
INCOME TAX PROVISION....................... 237,962 -- 80,143
---------- ---------- ----------
NET INCOME (LOSS).......................... $ 335,026 $ (38,966) $ 141,437
========== ========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-159
<PAGE>

WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.

STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
NET
UNREALIZED
GAIN ON TOTAL
COMMON RETAINED MARKETABLE SHAREHOLDERS'
STOCK EARNINGS SECURITIES EQUITY
------ ---------- ---------- -------------
<S> <C> <C> <C> <C>
BALANCE, March 31, 1996............. $4,050 $1,583,304 $ 77,400 $1,664,754
Net income......................... -- 335,026 -- 335,026
Net unrealized gain on marketable
securities........................ -- -- 72,764 72,764
------ ---------- -------- ----------
BALANCE, March 31, 1997............. 4,050 1,918,330 150,164 2,072,544
Net income......................... -- 141,437 -- 141,437
Net unrealized gain on marketable
securities........................ -- -- 9,061 9,061
------ ---------- -------- ----------
BALANCE, June 30, 1997.............. $4,050 $2,059,767 $159,225 $2,223,042
====== ========== ======== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-160
<PAGE>

WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
THREE MONTHS ENDED
YEAR ENDED JUNE 30,
MARCH 31, ---------------------
1997 1996 1997
---------- ----------- ---------
(UNAUDITED)
<S> <C> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)........................... $ 335,026 $ (38,966) $ 141,437
Adjustments to reconcile net income (loss)
to net
cash provided by (used in) operating
activities:
Depreciation and amortization............. 82,328 22,419 22,591
Deferred income taxes..................... 80,900 -- 8,944
Changes in operating assets and
liabilities:
(Increase) decrease in--
Accounts receivable..................... (39,157) (332,559) (102,440)
Inventories............................. 21,111 -- (3,996)
Prepaid expenses........................ 41,737 (22,000) 3,504
Increase (decrease) in--
Accounts payable........................ (125,073) 111,473 (139,187)
Accrued expenses........................ (74,603) (48,077) 24,256
Deferred service contract revenue....... 16,154 25,242 30,041
Income taxes payable.................... 46,885 -- 52,834
--------- --------- ---------
Net cash provided by (used in)
operating activities.................. 385,308 (282,468) 37,984
--------- --------- ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment......... (34,821) (2,099) (21,188)
Increase in cash surrender value of life
insurance policy........................... (10,943) -- (953)
--------- --------- ---------
Net cash used in investing activities.. (45,764) (2,099) (22,141)
--------- --------- ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of short-term borrowings........... (84,942) -- (2,097)
--------- --------- ---------
Net cash used in financing activities.. (84,942) -- (2,097)
--------- --------- ---------
NET INCREASE (DECREASE) IN CASH AND CASH
EQUIVALENTS................................. 254,602 (284,567) 13,746
CASH AND CASH EQUIVALENTS, beginning of
period...................................... 519,843 519,843 774,445
--------- --------- ---------
CASH AND CASH EQUIVALENTS, end of period..... $ 774,445 $ 235,276 $ 788,191
========= ========= =========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-161
<PAGE>

WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.

NOTES TO FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

Willis Refrigeration, Air Conditioning & Heating, Inc. (the Company) is
primarily engaged in the installation and servicing of heating and air
conditioning systems for residential customers in Ohio and northern Kentucky.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

The interim financial statements for the three months ended June 30, 1996
are unaudited, and certain information and footnote disclosures, normally
included in financial statements prepared in accordance with generally
accepted accounting principles, have been omitted. In the opinion of
management, all adjustments, consisting only of normal recurring adjustments,
necessary to fairly present the financial position, results of operations and
cash flows with respect to the interim financial statements, have been
included. The results of operations for the interim periods are not
necessarily indicative of the results for the entire fiscal year.

Use of Estimates

Management uses estimates and assumptions in preparing the financial
statements in accordance with generally accepted accounting principles. Those
estimates and assumptions affect the reported amounts of assets and
liabilities, the disclosure of contingent assets and liabilities, and the
reported revenues and expenses.

Revenue Recognition

Revenues from work orders are recognized as services are performed. Revenues
on service and maintenance contracts are recognized over the life of the
contract. Revenues from new construction sales are recognized on the
percentage of completion basis with seventy percent of the revenue recognized
at initial installation of new units and thirty percent recognized at the
final stage of installation when the residential building is nearing
completion. Material, equipment and labor costs are estimated for each job and
are recognized on the same percentage method.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid investments with original maturities of three months or less to
be cash equivalents. Cash payments for interest were $25,379 and $2,131 for
the year ended March 31, 1997 and the three months ended June 30, 1997.

Inventories

Inventories consist primarily of parts and supplies used in both the service
and construction portions of the Company's operation. Inventory is stated at
the lower of cost or market.

Property and Equipment

Property and equipment is stated at cost. Depreciation is computed using the
straight-line method over the useful lives of the assets.

F-162
<PAGE>

WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.

Marketable Securities

The Company accounts for marketable securities in accordance with SFAS No.
115, Accounting for Certain Investments in Debt and Equity Securities. All of
the Company's marketable securities (all of which are equity securities) have
been classified as available for sale with unrealized gains or losses recorded
as a separate component of shareholders' equity. As of March 31, 1997 and June
30, 1997 the amortized cost of the marketable securities was $12,900.

Warranty Costs

Income Taxes

The Company accounts for income taxes using the asset and liability method.
Under the asset and liability method, deferred tax assets and liabilities are
recognized for the future tax consequences attributable to differences between
the financial statement carrying amounts of existing assets and liabilities
and their respective tax bases. Deferred tax assets and liabilities are
measured using enacted tax rates expected to apply to taxable income in the
years in which those temporary differences are expected to be recovered or
settled. The effect on deferred tax assets and liabilities of a change in tax
rates is recognized in income in the period that includes the enactment date.

New Accounting Pronouncement

F-163
<PAGE>

WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

3. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and
equipment are as follows:

<TABLE>
<CAPTION>
ESTIMATED MARCH 31, JUNE 30,
USEFUL LIVES 1997 1997
------------ ---------- ----------
<S> <C> <C> <C>
Service and other vehicles............. 3-5 years $ 505,103 $ 505,103
Office equipment, furniture and
fixtures.............................. 3-10 years 223,379 244,567
Buildings and improvements............. 18-31 years 453,267 453,267
Land................................... -- 106,500 106,500
---------- ----------
1,288,249 1,309,437
Less accumulated depreciation........ (774,361) (796,952)
---------- ----------
$ 513,888 $ 512,485
========== ==========
</TABLE>

4. OTHER NONCURRENT ASSETS

Other noncurrent assets includes the cash surrender value of a life
insurance policy for the vice president of the Company. The cash surrender
value of the policy is as follows:

<TABLE>
<CAPTION>
MARCH 31, JUNE 30,
1997 1997
--------- --------
<S> <C> <C>
Cash surrender value.................................... $ 82,267 $ 83,220
Outstanding loan........................................ (18,682) (18,682)
-------- --------
Net cash surrender value.............................. $ 63,585 $ 64,538
======== ========
</TABLE>

5. SHORT-TERM BORROWINGS

Short-term borrowings consists of the following:

<TABLE>
<CAPTION>
MARCH 31, JUNE 30,
1997 1997
--------- --------
<S> <C> <C>
Revolving line of credit of up to $700,000 payable to a
financial institution, bearing interest at 8.5%, due
upon demand, but in any event without
demand or notice on February 28, 1998................... $100,000 $100,000
Notes payable to the president of the Company, bearing
interest at 9%,
no scheduled repayment.................................. 122,828 120,731
-------- --------
Total short-term borrowings............................ $222,828 $220,731
======== ========
</TABLE>

6. INCOME TAXES

Income tax expense consists of:

<TABLE>
<CAPTION>
THREE MONTHS
YEAR ENDED ENDED
MARCH 31, JUNE 30,
1997 1997
---------- ------------
<S> <C> <C>
Current.............................................. $157,062 $71,199
Deferred............................................. 80,900 8,944
-------- -------
Income tax provision............................... $237,962 $80,143
======== =======
</TABLE>

F-164
<PAGE>

WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

Total income tax expense differed from the amount computed by applying the
U.S. federal statutory income tax rate of 34% to income before income tax
provision as a result of the following:

<TABLE>
<CAPTION>
THREE MONTHS
YEAR ENDED ENDED
MARCH 31, JUNE 30,
1997 1997
---------- ------------
<S> <C> <C>
Expense at the statutory rate........................ $194,816 $75,337
Increase (reduction) resulting from:
State income taxes................................. 45,839 12,289
Other.............................................. (2,693) (7,483)
-------- -------
$237,962 $80,143
======== =======
</TABLE>

The components of the deferred income tax assets and liabilities are as
follows:

<TABLE>
<CAPTION>
MARCH 31, JUNE 30,
1997 1997
--------- --------
<S> <C> <C>
Deferred income tax assets:
Allowance for doubtful accounts......................... $226,249 $215,758
Warranty reserves....................................... 11,252 11,252
Vacation accrual........................................ 2,940 2,940
-------- --------
Total deferred income tax asset....................... 240,441 229,950
-------- --------
Deferred income tax liabilities:
Net unrealized gain on securities available for sale.... 105,115 111,729
Depreciation............................................ 36,890 35,343
-------- --------
Total deferred income tax liability................... 142,005 147,072
-------- --------
Net deferred income tax asset......................... $ 98,436 $ 82,878
======== ========
</TABLE>

Management believes that it is more likely than not that the Company will
realize the benefits of the net deferred income tax asset recorded at March
31, 1997 and June 30, 1997.

7. EMPLOYEE BENEFIT PLAN

The Company has a profit-sharing plan (the Plan) covering its qualified
employees. The Company may make a contribution amount at any time to the Plan
to the extent authorized by the Board of Directors. Total expense related to
this Plan for the year ended March 31, 1997 and the three months ended June
30, 1997, was approximately $54,200 and $3,700, respectively.

8. SALES TO SIGNIFICANT CUSTOMER

During the year ended March 31, 1997 and the three months ended June 30,
1997 sales to one customer accounted for approximately 14% and 13% of the
Company's revenues.

9. EMPLOYMENT AGREEMENT

On January 13, 1992, the Company entered into an employment agreement with
the Company's Chairman of the Board of Directors whereby an annual salary
would be paid to the Chairman through December 31, 2011 and would continue to
be paid in the event of death, disability, or termination of employment. An
annual salary

F-165
<PAGE>

WILLIS REFRIGERATION, AIR CONDITIONING & HEATING, INC.

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
of $26,000 will be paid through August 31, 2006; $15,600 per annum will be
paid thereafter through December 31, 2011. The employment agreement will be
terminated upon the consummation of the proposed merger of the Company (see
note 11).

10. FINANCIAL INSTRUMENTS

The Company's financial instruments consist of cash and cash equivalents,
marketable securities (carried at fair value) and short-term borrowings. The
Company believes that the carrying value of these instruments on the
accompanying balance sheets approximates their fair value.

11. ACQUISITION OF COMPANY

In May 1997, the Company signed a letter of intent with Group Maintenance
America Corp. (GroupMAC), whereby GroupMAC would acquire the Company in a
merger transaction for a combination of cash and common shares of GroupMAC
concurrent with the consummation of the initial public offering of the common
stock of GroupMAC, subject to certain conditions including the negotiation of
definitive agreements and approval by Directors of both companies.

F-166
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
Yale Incorporated:

We have audited the accompanying balance sheets of Yale, Inc. as of
September 30, 1996 and June 30, 1997, and the related statements of
operations, shareholders' equity and cash flows for the year ended
September 30, 1996 and the nine months ended June 30, 1997. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Yale Incorporated as of
September 30, 1996 and June 30, 1997, and the results of its operations and
its cash flows for the year ended September 30, 1996 and the nine months ended
June 30, 1997 in conformity with generally accepted accounting principles.

KPMG Peat Marwick LLP

Houston, Texas
July 18, 1997

F-167
<PAGE>

YALE INCORPORATED

BALANCE SHEETS

<TABLE>
<CAPTION>
SEPTEMBER 30, JUNE 30,
1996 1997
------------- ----------
<S> <C> <C>
ASSETS
CURRENT ASSETS:
Cash and cash equivalents........................... $ 112,091 $ 93,872
Accounts receivable, net of allowance for doubtful
accounts of $5,000................................. 1,355,712 1,553,593
Inventories......................................... 80,563 89,466
Costs and estimated earnings in excess of billings
on uncompleted contracts........................... 127,177 295,298
Prepaid expenses.................................... 54,324 44,545
---------- ----------
Total current assets.............................. 1,729,867 2,076,774
PROPERTY AND EQUIPMENT, net........................... 438,665 694,157
---------- ----------
Total assets...................................... $2,168,532 $2,770,931
========== ==========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
Short-term borrowings and current maturities of
long-term debt..................................... $ 120,233 $ 244,998
Accounts payable.................................... 529,545 763,695
Accrued expenses.................................... 217,847 219,303
Billings in excess of costs and estimated earnings
on uncompleted contracts........................... 93,306 19,401
---------- ----------
Total current liabilities......................... 960,931 1,247,397
LONG-TERM DEBT, net of current maturities............. 101,732 175,047
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Common stock--no par value, stated value of $1 per
share; 20,000 shares authorized; 1,000 shares
issued and outstanding............................. 1,000 1,000
Additional paid-in capital.......................... 100,767 100,767
Retained earnings................................... 1,004,102 1,246,720
---------- ----------
Total shareholders' equity........................ 1,105,869 1,348,487
---------- ----------
Total liabilities and shareholders' equity........ $2,168,532 $2,770,931
========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-168
<PAGE>

YALE INCORPORATED

STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
NINE MONTHS ENDED
YEAR ENDED JUNE 30,
SEPTEMBER 30, ----------------------
1996 1996 1997
------------- ---------- ----------
(UNAUDITED)
<S> <C> <C> <C>
REVENUES................................. $10,065,130 $7,228,688 $7,362,875
COST OF SERVICES......................... 7,930,984 5,553,931 5,414,265
----------- ---------- ----------
Gross profit........................... 2,134,146 1,674,757 1,948,610
SELLING, GENERAL AND ADMINISTRATIVE
EXPENSES................................ 1,729,405 1,292,928 1,522,284
----------- ---------- ----------
Income from operations................. 404,741 381,829 426,326
OTHER INCOME (EXPENSE):
Interest expense....................... (29,578) (23,824) (24,350)
Other.................................. (49,791) (21,383) (9,358)
----------- ---------- ----------
NET INCOME............................... $ 325,372 $ 336,622 $ 392,618
=========== ========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-169
<PAGE>

YALE INCORPORATED

STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
ADDITIONAL TOTAL
COMMON PAID-IN RETAINED SHAREHOLDERS'
STOCK CAPITAL EARNINGS EQUITY
------ ---------- ---------- -------------
<S> <C> <C> <C> <C>
BALANCE, September 30, 1995......... $1,000 $100,767 $ 803,730 $ 905,497
Net income........................ -- -- 325,372 325,372
Distributions to shareholders..... -- -- (125,000) (125,000)
------ -------- ---------- ----------
BALANCE, September 30, 1996......... 1,000 100,767 1,004,102 1,105,869
Net income........................ -- -- 392,618 392,618
Distributions to shareholders..... -- -- (150,000) (150,000)
------ -------- ---------- ----------
BALANCE, June 30, 1997.............. $1,000 $100,767 $1,246,720 $1,348,487
====== ======== ========== ==========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-170
<PAGE>

YALE INCORPORATED

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
NINE MONTHS ENDED
YEAR ENDED JUNE 30,
SEPTEMBER 30, ---------------------
1996 1996 1997
------------- ----------- ---------
(UNAUDITED)
<S> <C> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income............................... $ 325,372 $ 336,622 $ 392,618
Adjustments to reconcile net income to
net cash
provided by operating activities:
Depreciation........................... 127,448 92,059 141,438
Gain on sale of property and equipment. (660) (660) (11,159)
Changes in operating assets and
liabilities:
(Increase) decrease in--
Accounts receivable.................. 59,098 (149,234) (197,881)
Inventories.......................... 410 (178,651) (8,903)
Costs and estimated earnings in
excess of
billings on uncompleted contracts... (93,145) (51,801) (168,121)
Prepaid expenses..................... (25,136) (26,821) 9,779
Increase (decrease) in--
Accounts payable..................... 7,505 456,337 234,150
Accrued expenses..................... 58,688 (52,607) 1,456
Billings in excess of costs and
estimated
earnings on uncompleted contracts... 54,294 38,574 (73,905)
--------- --------- ---------
Net cash provided by operating
activities......................... 513,874 463,818 319,472
--------- --------- ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment...... (315,074) (315,074) (403,831)
Proceeds from sales of property and
equipment............................... 41,945 41,945 18,060
--------- --------- ---------
Net cash used in investing
activities......................... (273,129) (273,129) (385,771)
--------- --------- ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt............. 233,400 233,400 319,000
Payments of long-term debt............... (253,784) (221,810) (120,920)
Distributions to shareholders............ (125,000) (125,000) (150,000)
--------- --------- ---------
Net cash provided by (used in)
financing activities........... (145,384) (113,410) 48,080
--------- --------- ---------
NET INCREASE (DECREASE) IN CASH AND CASH
EQUIVALENTS.............................. 95,361 77,279 (18,219)
CASH AND CASH EQUIVALENTS, beginning of
period................................... 16,730 16,730 112,091
--------- --------- ---------
CASH AND CASH EQUIVALENTS, end of period.. $ 112,091 $ 94,009 $ 93,872
========= ========= =========
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-171
<PAGE>

YALE INCORPORATED

NOTES TO FINANCIAL STATEMENTS

1. BUSINESS AND ORGANIZATION

Yale Incorporated (the Company) is primarily engaged in the installation and
servicing of heating and air conditioning systems for commercial and
industrial customers in the state of Minnesota.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Interim Financial Information

The interim financial statements for the nine months ended June 30, 1996 are
unaudited, and certain information and footnote disclosures, normally included
in financial statements prepared in accordance with generally accepted
accounting principles, have been omitted. In the opinion of management, all
adjustments, consisting only of normal recurring adjustments, necessary to
fairly present the financial position, results of operations and cash flows
with respect to the interim financial statements, have been included. The
results of operations for the interim periods are not necessarily indicative
of the results for the entire fiscal year.

Use of Estimates

The preparation of financial statements in accordance with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting year. Actual results could differ from those estimates.

Revenue Recognition

Revenues from work orders are recognized as services are performed. Revenues
on service and maintenance contracts are recognized over the life of the
contract. Revenues from construction contracts are recognized on a percentage
of completion basis using the cost-to-cost method. Provisions for estimated
losses on uncompleted contracts are made in the period in which such losses
are determined. Changes in job performance, job conditions, and estimated
profitability may result in revisions to costs and revenues and are recognized
in the period in which the revisions are determined.

Cash and Cash Equivalents

For purposes of the statements of cash flows, the Company considers all
highly liquid debt instruments with a maturity of three months or less to be
cash equivalents. Cash payments for interest were $37,791 and $24,350 for the
year ended September 30, 1996 and the nine months ended June 30, 1997,
respectively.

Inventories

Inventories consist of parts and supplies used in both the service and the
construction portions of the Company's operation. The inventory is valued at
the lower of cost or market, with cost determined on a first-in, first-out
(FIFO) basis.

Property and Equipment

F-172
<PAGE>

YALE INCORPORATED

Warranty Costs

Income Taxes

The shareholders of the Company have elected to be taxed for federal and
Minnesota tax purposes as an S Corporation whereby the shareholders'
respective equitable shares in the taxable income of the Company are
reportable on their individual tax returns. The Company has made distributions
to the shareholders each year at least in amounts necessary to pay personal
income taxes payable on the Company's taxable income.

New Accounting Pronouncement

Effective October 1, 1995, the Company adopted SFAS No. 121, Accounting for
the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed
Of. Accordingly, in the event that facts and circumstances indicate that
property and equipment, and intangible or other assets may be impaired, an
evaluation of recoverability would be performed. If an evaluation is required,
the estimated future undiscounted cash flows associated with the asset are
compared to the asset's carrying amount to determine if a write-down to market
value is necessary. Adoption of this standard did not have a material effect
on the financial position or results of operations of the Company.

3. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS

Accrued expenses consists of the following:

<TABLE>
<CAPTION>
SEPTEMBER 30, JUNE 30,
1996 1997
------------- --------
<S> <C> <C>
Accrued payroll costs and benefits.................... $209,324 $161,306
Other accrued expenses................................ 8,523 57,997
-------- --------
$217,847 $219,303
======== ========
</TABLE>

4. COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS

A summary of the status of uncompleted contracts is as follows:

<TABLE>
<CAPTION>
SEPTEMBER 30, JUNE 30,
1996 1997
------------- --------
<S> <C> <C>
Costs incurred........................................ $1,162,529 $811,487
Estimated earnings recognized......................... 60,763 108,605
---------- --------
1,223,292 920,092
Less billings on contracts............................ 1,189,421 644,195
---------- --------
$ 33,871 $275,897
========== ========
</TABLE>

F-173
<PAGE>

YALE INCORPORATED

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
These costs and estimated earnings on uncompleted contracts are included in
the accompanying balance sheets under the following captions:

<TABLE>
<CAPTION>
SEPTEMBER 30, JUNE 30,
1996 1997
------------- --------
<S> <C> <C>
Costs and estimated earnings in excess of billings on
uncompleted contracts............................... $127,177 $295,298
Billings in excess of costs and estimated earnings on
uncompleted contracts............................... (93,306) (19,401)
-------- --------
$ 33,871 $275,897
======== ========
</TABLE>

5. PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and
equipment are as follows:

<TABLE>
<CAPTION>
ESTIMATED
USEFUL SEPTEMBER 30, JUNE 30,
LIVES 1996 1997
---------- ------------- ----------
<S> <C> <C> <C>
Service and other vehicles............. 4-7 years $ 675,544 $ 845,186
Machinery and equipment................ 5-10 years 141,367 153,019
Office equipment, furniture and
fixtures.............................. 5-10 years 101,171 124,444
Leasehold improvements................. -- 52,386
--------- ----------
918,082 1,175,035
Less accumulated depreciation.......... (479,417) (480,878)
--------- ----------
$ 438,665 $ 694,157
========= ==========
</TABLE>

6. SHORT- AND LONG-TERM DEBT

The Company has an available line of credit of $450,000 that matures on
April 30, 1998. Advances issued are due on demand and accrue interest at 0.5%
above the prime rate. Also, the Company has an agreement to borrow up to
$350,000 of term debt secured by service and other vehicles and equipment. The
line of credit and equipment notes are secured by substantially all of the
Company's assets and the personal guarantees of certain shareholders. At June
30, 1997, the Company had $100,000 of outstanding borrowings on the line of
credit, and had approximately $320,000 of outstanding borrowings on the term
debt.

Short- and long-term debt consists of the following:

<TABLE>
<CAPTION>
SEPTEMBER 30, JUNE 30,
1996 1997
------------- --------
<S> <C> <C>
Borrowings under line of credit agreement............. $ -- $100,000
Note payable to bank, due in monthly installments of
$1,230, plus interest at 0.5% over prime, through May
1997, secured by service and other vehicles.......... 9,735 --
Note payable to bank, due in monthly installments of
$2,944, plus interest at 0.5% over prime, through
August 1997, secured by service and other
vehicles............................................. 32,695 6,195
Note payable to bank, due in monthly installments of
$1,805, plus interest at 0.5% over prime, through
November 1998, secured by service and other vehicles. 46,948 30,703
Note payable to bank, due in monthly installments of
$1,014, plus interest at 0.5% over prime, through
October 1998, secured by service and other vehicles.. 25,346 16,220
Note payable to bank, due in monthly installments of
$1,584, plus interest at 0.5% over prime, through
December 1998, secured by service and other vehicles. 42,744 28,488
</TABLE>

F-174
<PAGE>

YALE INCORPORATED

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
<TABLE>
<CAPTION>
SEPTEMBER 30, JUNE 30,
1996 1997
------------- ---------
<S> <C> <C>
Note payable to bank, due in monthly installments of
$2,081, plus interest at 0.5% over prime, through
April 1999, secured by service and other vehicles.. 64,497 45,772
Note payable to bank, due in monthly installments of
$2,083, plus interest at 0.5% over prime, through
February 2000, secured by service and other
vehicles........................................... -- 66,667
Note payable to bank, due in monthly installments of
$3,000, plus interest at 0.5% over prime, through
December 2000, secured by service and other
vehicles........................................... -- 126,000
--------- ---------
Total short- and long-term debt................... 221,965 420,045
Less short-term borrowings and current maturities... (120,233) (244,998)
--------- ---------
$ 101,732 $ 175,047
========= =========
</TABLE>

The line of credit and the equipment notes contain certain restrictive
covenants relating to, among other items, minimum net income, minimum tangible
net worth, and debt to tangible net worth.

The aggregate maturities of the short- and long-term debt as of September
30, 1996 are as follows:

7. LEASES

The Company operates out of facilities leased from a related entity under a
monthly operating lease requiring payments of $10,710 per month. The Company
sublets part of the building under an operating lease through February 1998.
Total rent expenses before sublease income for the year ended September 30,
1996 and the nine months ended June 30, 1997, were approximately $128,500 and
$96,400, respectively. Sublease income was approximately $39,000 and $29,250
for the year ended September 30, 1996 and the nine months ended June 30, 1997,
respectively. The Company has guaranteed the underlying mortgage
(approximately $405,000 as of September 30, 1996) for the facility.

8. RELATED PARTY TRANSACTIONS

During the year ended September 30, 1996 and the nine months ended June 30,
1997, the Company paid management fees to related parties totaling
approximately $110,100 and $60,075, respectively. In addition, as discussed in
note 7, the Company leases its operating facilities from a related entity.

9. EMPLOYEE BENEFIT PLANS

The Company has a 401(k) plan covering all employees not covered by a
collective bargaining agreement. Eligible employees may contribute from 2 to
20% of their qualifying compensation to the plan, with the Company required to
match 50% of the employee's first 6% of contributions. The Company may make
additional contributions to the plan to the extent authorized by the Board of
Directors. Total expense related to this plan for the year ended September 30,
1996 and the nine months ended June 30, 1997, was approximately $30,100 and
$20,778, respectively.

F-175
<PAGE>

YALE INCORPORATED

NOTES TO FINANCIAL STATEMENTS--(CONTINUED)

The Company makes contributions to union-administered benefit funds which
cover the majority of the Company's employees. For the year ended September
30, 1996 and the nine months ended June 30, 1997, the participation costs
charged to operations were approximately $592,400 and $511,720, respectively.

Governmental regulations impose certain requirements relative to multi-
employer plans. In the event of plan termination or employer withdrawal, an
employer may be liable for a portion of the plan's unfunded vested benefits,
if any. The Company has not received information from the plans'
administrators to determine its share of any unfunded vested benefits. The
Company does not anticipate withdrawal from the plans, nor is the Company
aware of any expected plan terminations.

10. SALES TO SIGNIFICANT CUSTOMER

During the year ended September 30, 1996 and the nine months ended June 30,
1997, sales to one customer accounted for approximately 18% and 26%,
respectively, of the Company's revenues.

11. COMMITMENTS AND CONTINGENCIES

Claims

The Company is involved in various claims and legal actions arising in the
ordinary course of business. In the opinion of management, the ultimate
disposition of these matters will not have a material adverse effect on the
Company's financial position, results of operations or liquidity.

Stock Transfer Agreement

The Company has a stock transfer agreement with the shareholders
(participants) covering all shares of common stock whereby the Company is
required to repurchase the shares of a participant in certain circumstances.
Additionally, the Company has an option to repurchase the common shares of a
participant in certain circumstances.

12. FINANCIAL INSTRUMENTS

13. ACQUISITION OF COMPANY

F-176
<PAGE>

ANNEX A

AGREEMENT AND PLAN OF MERGER

BY AND AMONG

GROUP MAINTENANCE AMERICA CORP.

MACDONALD-MILLER ACQUISITION CORP.

MACDONALD-MILLER INDUSTRIES, INC.

THE PRINCIPAL HOLDERS OF THE
OUTSTANDING CAPITAL STOCK
OF
MACDONALD-MILLER INDUSTRIES, INC.

AND

THE TRUSTEE OF THE
MACDONALD-MILLER INDUSTRIES, INC. EMPLOYEE
STOCK OWNERSHIP PLAN AND TRUST

August 18, 1997
<PAGE>

TABLE OF CONTENTS

Page

1. THE MERGER............................................................... 1
1.1 The Merger......................................................... 1
1.2 Effective Time of the Merger....................................... 1
1.3 Closing............................................................ 1
1.4 Effects of the Merger.............................................. 2
1.4.1 At the Effective Time...................................... 2
1.4.2 Effects on the Surviving Corporation....................... 2
1.5 Written Agreement and Other Actions................................ 3
1.5.1 Voting and Instruction Agreement; Other Matters............ 3
1.5.2 Written Consent of the Sole Shareholder of Merger Sub...... 3
1.5.3 All Other Necessary Actions................................ 3
1.6 Conversion of Stock................................................ 3
1.6.1 Merger Sub Capital Stock................................... 3
1.6.2 Cancellation of the Company Treasury Stock and
Authorized but Unissued Stock............................ 3
1.6.3 Merger Consideration....................................... 3
1.7 Exchange of and Payment for Stock.................................. 4
1.7.1 Delivery of Company Common Stock and Closing Merger
Consideration; Appraisal Rights.......................... 4
1.7.2 Return of Stock Certificates............................... 4
1.7.3 Assignments................................................ 5
1.7.4 Payment In Full Satisfaction of All Rights................. 5
1.8 Determination of Closing Merger Consideration...................... 5
1.8.1 Delivery of IPO Price to Public; Statement................. 5
1.9 Post-Closing Determination of Total Consideration.................. 5
1.9.1 Statement.................................................. 5
1.9.2 Review..................................................... 5
1.9.3 Disputes................................................... 6
1.9.4 Resolution by Parties...................................... 6
1.9.5 Final Determination........................................ 6
1.9.6 Expenses................................................... 7
1.10 Additional Consideration........................................... 7

2. REPRESENTATIONS AND WARRANTIES OF THETRUSTEE, THE COMPANY AND THE
PRINCIPAL SHAREHOLDER.................................................. 8
2.1 Representations and Warranties of the Trustee...................... 8
2.2 Representations and Warranties of the Company and
the Principal Shareholders....................................... 8
2.2.1 Exhibit 2.................................................. 8

-i-
<PAGE>

2.2.2 Stock Ownership............................................ 8
2.2.3 Authority.................................................. 8
2.2.4 Consents................................................... 8
2.2.5 No Warranties of Future Performance........................ 8

3. REPRESENTATIONS AND WARRANTIES OF THE PARENT AND MERGER SUB.............. 9
3.1 Representations and Warranties..................................... 9
3.1.1 Organization............................................... 9
3.1.2 Capitalization of the Parent............................... 9
3.1.3 Authority.................................................. 9
3.1.4 Consents................................................... 9
3.1.5 Defaults................................................... 9
3.1.6 Investment Company......................................... 10
3.1.7 Financial Statements....................................... 10
3.1.8 Taxes...................................................... 10
3.1.9 Full Authority............................................. 10
3.1.10 Access..................................................... 10
3.1.11 Disclosure................................................. 10
3.1.12 Parent Material Adverse Effect............................. 11
3.1.13 Tax-Free Reorganization.................................... 11
3.1.14 No Warranties of Future Performance........................ 12
3.2 Representations and Warranties Concerning the Merger Sub........... 12
3.2.1 Organization and Standing.................................. 12
3.2.2 Capital Structure.......................................... 12
3.2.3 Authority.................................................. 12

4. CERTAIN COVENANTS, AGREEMENTS AND PRE-CLOSING MATTERS.................... 12
4.1 Agreements of the Principal Shareholders to be
Effective Upon Closing........................................... 12
4.1.1 Covenant Not to Compete.................................... 12
4.1.2 Release.................................................... 13
4.2 Elimination of Expense............................................. 14
4.3 Deferred Compensation Plans........................................ 14
4.4 Audit.............................................................. 14
4.5 Certain Payables and Receivables................................... 14
4.6 Pre-Closing Covenants and Agreements............................... 14
4.7 Confidentiality.................................................... 14
4.8 Tax-Free Reorganization............................................ 15
4.9 Company Plans...................................................... 15
4.10 HSR Act............................................................ 15
4.11 Purchase of Certain Receivables................................... 15
4.12 Certain Condominiums............................................... 15
4.13 Certain Matters Related to the ESOP................................ 15

-ii-
<PAGE>

4.13.1 Suspension of ESOP Contributions.......................... 15
4.13.2 Amendment of ESOP; Distribution of ESOP Investments........ 16
4.14 ESOP Expenses...................................................... 16
4.15 Indemnification of Officers and Directors of the Company........... 16
4.16 Errors and Omissions Insurance..................................... 16
4.17 Other Insurance.................................................... 16
4.18 Releases........................................................... 16
4.19 Parent Guaranty.................................................... 16
4.20 Recommendation by the Company; Cooperation in Preparation
of Registration Statement and Proxy and in Meeting of
Shareholders..................................................... 16
4.21 Sale of MMR........................................................ 17

5. CONDITIONS PRECEDENT; CLOSING DELIVERIES................................. 17
5.1 Conditions Precedent to the Obligations of the Parent
and Merger Sub................................................... 17
5.1.1 Accuracy of Representations and Warranties................. 17
5.1.2 Performance of Covenants................................... 17
5.1.3 Legal Actions or Proceedings............................... 17
5.1.4 Approvals.................................................. 17
5.1.5 Closing Deliveries......................................... 17
5.1.6 No Casualty, Loss or Damage................................ 17
5.1.7 Licenses, etc.............................................. 18
5.1.8 No Material Adverse Change................................. 18
5.1.9 IPO........................................................ 18
5.1.10 Certain Corporate Actions.................................. 18
5.1.11 HSR Act.................................................... 18
5.2 Conditions Precedent to the Obligations of the Principal
Shareholders and the Company..................................... 18
5.2.1 Accuracy of Representations and Warranties................. 18
5.2.2 Performance of Covenants................................... 18
5.2.3 Approvals.................................................. 18
5.2.4 Closing Deliveries......................................... 18
5.2.5 HSR Act.................................................... 18
5.3 Deliveries by the Principal Shareholders at the Closing............ 19
5.3.1 Closing Certificates....................................... 19
5.3.2 Stock Transfer Restriction Agreement....................... 19
5.3.3 Employment Agreements...................................... 19
5.3.4 Lease Agreement............................................ 19
5.3.5 Opinion of Counsel for the Principal
Shareholders and the Company............................. 19
5.3.6 Documents, Stock Certificates.............................. 19
5.3.7 Discharge of Indebtedness, Releases, Etc................... 19
5.4 Deliveries by the Parent at the Closing............................ 20
5.4.1 Closing Certificates....................................... 21
5.4.2 Registration Rights Agreement.............................. 21

-iii-
<PAGE>

5.4.3 Opinion of Counsel for the Parent and Merger Sub........... 21
5.4.4 Closing Merger Consideration............................... 21

6. SURVIVAL, INDEMNIFICATIONS............................................... 21
6.1 Survival........................................................... 21
6.2 Indemnification.................................................... 22
6.2.1 Parent Indemnified Parties................................. 22
6.2.2 Parent Indemnity........................................... 23
6.3 Limitations........................................................ 23
6.3.1 Aggregate Liability........................................ 23
6.3.2 Threshold.................................................. 23
6.4 Procedures for Indemnification..................................... 24
6.4.1 Notice..................................................... 24
6.4.2 Legal Defense.............................................. 24
6.4.3 Settlement................................................. 24
6.4.4 Cooperation................................................ 24
6.5 Subrogation........................................................ 25

7. TERMINATION.............................................................. 25
7.1 Grounds for Termination............................................ 25
7.1.1 Mutual Consent............................................. 25
7.1.2 Optional By the Company.................................... 25
7.1.3 Optional By the Parent..................................... 25
7.1.4 Breach By the Parent or Merger Sub......................... 25
7.1.5 Breach by the Company or any Principal Shareholder......... 25
7.2 Effect of Termination.............................................. 25

8. MISCELLANEOUS............................................................ 25
8.1 Notice............................................................. 25
8.2 Further Documents.................................................. 26
8.3 Assignability...................................................... 26
8.4 Exhibits and Schedules............................................. 27
8.5 Sections and Articles.............................................. 27
8.6 Entire Agreement................................................... 27
8.7 Headings........................................................... 27
8.8 CONTROLLING LAW.................................................... 27
8.9 Public Announcements............................................... 27
8.10 No Third Party Beneficiaries....................................... 27
8.11 Amendments and Waivers............................................. 27
8.12 No Employee Rights................................................. 28
8.13 Non-Recourse....................................................... 28
8.14 When Effective..................................................... 28
8.15 Takeover Statutes.................................................. 28

-iv-
<PAGE>

8.16 Number and Gender of Words......................................... 28
8.17 Invalid Provisions................................................. 28
8.18 Multiple Counterparts.............................................. 29
8.19 No Rule of Construction............................................ 29
8.20 Expenses........................................................... 29

-v-
<PAGE>

LIST OF EXHIBITS

<TABLE>
<CAPTION>
<S> <C>
Exhibit 1....................................Determination of Final Merger Consideration
Exhibit 1.5.1...........................................Voting and Instruction Agreement
Exhibit 1.5.2..Written Consent of Sole Shareholder of MacDonald-Miller Acquisition Corp.
Exhibit 1.7........................................................Letter of Transmittal
Exhibit 2.............................................................Certain Statements
Exhibit 2.2............................................Ownership of Company Common Stock
Exhibit 2.4.....................................................................Consents
Exhibit 3.1.4.................................................Required Consents - Parent
Exhibit 4.3..........................Procedure for Satisfaction of Deferred Compensation
Plan Liabilities and Split-Dollar Life Insurance Policies
Exhibit 4.6............................................................Certain Covenants
Exhibit 4.9............................................Company Plans to Remain in Effect
Exhibit 4.12..........................................................Certain Properties
Exhibit 5.3.2.......................................Stock Transfer Restriction Agreement
Exhibit 5.3.3.............List of Employees to Execute and Deliver Employment Agreements
Exhibit 5.3.3A......................................................Employment Agreement
Exhibit 5.3.4............................................................Lease Agreement
Exhibit 5.3.5-A...................Opinion of Counsel to the Shareholders and the Company
Exhibit 5.3.5-B........................................Opinion of Counsel to the Trustee
Exhibit 5.3.7.....................................................Terminated Obligations
Exhibit 5.4.3...........................................Opinion of Counsel to the Parent
</TABLE>

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<PAGE>

INDEX OF DEFINED TERMS

Page
----
1042 Shares.................................................................. 3
Accountants.................................................................. 6
Additional Consideration..................................................... 7
Additional Net After-Tax Income.............................................. 7
Agreement.................................................................... 1
Applicable Corporate Law..................................................... 1
Approval Shareholders........................................................ 1
AR Reserve................................................................... 15
Closing...................................................................... 1
Closing Date................................................................. 1
Code......................................................................... 1
Company...................................................................... 1
Company Accountants.......................................................... 14
Company Common Stock......................................................... 1
Converted Share.............................................................. 4
Dissenting Shares............................................................ 4
Earn-Out Period.............................................................. 7
EBITDA....................................................................... 7
Effective Time............................................................... 1
ESOP......................................................................... 15
HSR Act...................................................................... 15
Indemnified Party............................................................ 24
Indemnifying Party........................................................... 24
IPO.......................................................................... 2
Losses....................................................................... 22
Merger....................................................................... 1
Merger Sub................................................................... 1
Minimum Proceeds............................................................. 2
MMR.......................................................................... 7
Notice of Dispute............................................................ 6
Operating EBITDA............................................................. 7
Parent....................................................................... 1
Parent Common Stock.......................................................... 1
Parent Financial Statements.................................................. 10
Parent Indemnified Parties................................................... 22
Parent Material Adverse Effect............................................... 11
Parent Related Documents..................................................... 9
Pre-Closing Period........................................................... 7
Price Notice................................................................. 5

-vii-

<PAGE>

Page
----
Principal Shareholders....................................................... 1
Property..................................................................... 14
Registration Statement....................................................... 9
SEC.......................................................................... 9
Securities Act............................................................... 2
Settlement Notice............................................................ 24
Shareholder.................................................................. 4
Shareholder Related Document................................................. 8
Statement of Closing Consideration........................................... 5
Statement of Final Per Share Amounts......................................... 5
Stock Certificate............................................................ 4
Stock Value.................................................................. 7
Survival Period.............................................................. 21
Surviving Corporation........................................................ 1
Terminated Obligations....................................................... 19
Third Accountants............................................................ 6
Threshold.................................................................... 23
Trustee...................................................................... 1

-viii-
<PAGE>

AGREEMENT AND PLAN OF MERGER
----------------------------

This AGREEMENT AND PLAN OF MERGER (this "Agreement") made effective as of
August 18, 1997, by and among Group Maintenance America Corp., a Texas
corporation (the "Parent"), MacDonald-Miller Acquisition Corp., a Washington
corporation ("Merger Sub"), MacDonald-Miller Industries, Inc., a Washington
corporation (the "Company"), the undersigned holders of a portion of the
outstanding capital stock of the Company (the "Principal Shareholders"), and the
Trustee of the MacDonald-Miller Industries, Inc. Employee Stock Ownership Plan
and Trust (the "Trustee").

WHEREAS, the respective Boards of Directors of the Parent, Merger Sub and
the Company have each approved the merger of the Company with and into Merger
Sub (the "Merger") pursuant to this Agreement and the applicable statutes of the
State of Washington, and pursuant to the Merger each issued and outstanding
share of Common Stock of the Company ("Company Common Stock") will be converted
into the right to receive certain shares of common stock, $.001 par value per
share, of the Parent ("Parent Common Stock"), and certain cash consideration,
all as provided herein;

WHEREAS, the Merger has been approved, as required by applicable law, by
the Parent, acting as sole shareholder of Merger Sub, and by the requisite
number of shareholders of the outstanding capital stock of the Company (the
"Approval Shareholders")

WHEREAS, for federal income tax purposes, it is intended that the Merger
shall qualify as a reorganization within the meaning of Section 368(a) of the
Internal Revenue Code of 1986, as amended (the "Code").

NOW, THEREFORE, in consideration of the premises and the representations,
warranties and agreements herein contained, the parties hereto agree as follows:

1. THE MERGER

1.1 The Merger. Subject to the terms and conditions hereof, and in
accordance with Section RCW 23B.11.010 of the Washington Business Corporation
Act (the "Applicable Corporate Law"), upon the Effective Time (as defined in
Section 1.2), the Company shall be merged with and into Merger Sub. Merger Sub,
as the surviving entity following the Merger, is sometimes referred to in this
Agreement as the "Surviving Corporation."

1.2 Effective Time of the Merger. In accordance with the requirements of
applicable law, appropriate Articles of Merger under the Applicable Corporate
Law shall be prepared, executed and submitted for filing with the Secretary of
State of the State of Washington immediately following and on the same day as
the Closing (as defined below). The date of such filing is referred to in this
Agreement as the "Effective Time."

1.3 Closing. The closing of the Merger ("Closing") will take place at the
offices of Bracewell & Patterson, L.L.P. in Houston, Texas on a date that is
contemporaneous with the closing of the Parent's IPO (as defined below), but in
no event later than December 31, 1997 ("Closing Date"); provided that each of
the conditions precedent to the obligations of the parties to effect the Merger
set forth in Article 5 of this
<PAGE>

Agreement are then satisfied or waived by the applicable party. The parties may
agree in writing on another place for the Closing. At the Closing, the parties
will deliver or cause to be delivered the documents and consideration described
in Sections 5.3 and 5.4 below. The term "IPO" means the first underwritten
public offering of Parent Common Stock resulting in net cash proceeds to the
Parent of at least the Minimum Proceeds, as defined below (other than any
offering pursuant to any registration statement relating to any capital stock of
the Parent or options, warrants or other rights to acquire any such capital
stock issued or to be issued primarily to directors, officers or employees of
the Parent or any of its subsidiaries, (i) relating to any employee benefit plan
or interest therein, (ii) relating principally to any preferred stock or debt
securities of the Parent, or (iii) filed pursuant to Rule 145 under the
Securities Act of 1933, as amended (''Securities Act"), or any successor or
similar provision). The term "Minimum Proceeds" means the aggregate amount
necessary to pay in full (i) all indebtedness of the Parent and any of its
subsidiaries outstanding at the closing of the IPO and incurred for purposes of
financing any acquisitions by the Parent or any of its subsidiaries (including
the refinancing of acquired Company indebtedness), (ii) the aggregate redemption
prices for the redemption of all of the Parent's preferred stock outstanding at
the closing of the IPO issued by the Parent in connection with then completed
acquisitions by the Parent or any of its subsidiaries, and (iii) the aggregate
cash payable by the Parent or any of its subsidiaries in connection with all
then pending acquisitions.

1.4 Effects of the Merger.

1.4.1 At the Effective Time. At the Effective Time, (i) the Company
shall merge with and into Merger Sub and as a result thereof, the separate
existence of the Company shall cease, (ii) the Articles of Incorporation of
Merger Sub, as in effect immediately prior to the Effective Time, shall be the
Articles of Incorporation of the Surviving Corporation, except that the Articles
of Incorporation of Merger Sub shall be amended to provide that the name of the
Surviving Corporation shall be changed to "MacDonald-Miller Industries, Inc.,"
(iii) the Bylaws of Merger Sub as in effect immediately prior to the Effective
Time shall be the Bylaws of the Surviving Corporation, and (iv) the directors
and officers of Merger Sub immediately prior to the Effective Time shall become
the directors and officers of the Surviving Corporation, until the earlier of
their resignation or removal or until their respective successors are duly
elected or appointed, as the case may be.

1.4.2 Effects on the Surviving Corporation. As of and after the
Effective Time, the Surviving Corporation shall possess all the rights,
privileges, immunities and franchises of a public as well as of a private nature
previously belonging to the Company and Merger Sub; and all property (real,
personal and mixed), and all debts due on whatever account, including
subscriptions to shares, and all other choses in action, and all and every other
interest of or belonging to or due to each of the Company and Merger Sub shall
be transferred to, and vested in, the Surviving Corporation without further act
or deed; and all such property, rights and privileges, powers and franchises and
all and every other interest shall be thereafter the property of the Surviving
Corporation as they were of the Company and Merger Sub; and the title to any
real estate, or interest therein, whether by deed or otherwise, shall not revert
or be in any way impaired by reason of the Merger. The Surviving Corporation
shall be responsible and liable for all the liabilities and obligations of the
Company and Merger Sub, and any claim existing, or action or proceeding pending,
by or against the Company or Merger Sub may be prosecuted against the Surviving
Corporation. Neither the rights of creditors nor any liens upon the property of
the Company or Merger Sub shall be impaired by the Merger, and all debts,
liabilities and duties of each of the Company and Merger Sub shall attach to the
Surviving Corporation, and may be enforced against it to the same extent as if
such debts, liabilities and

-2-
<PAGE>

duties had been incurred or contracted by it, all in accordance with the
Applicable Corporate Law and the terms of this Agreement.

1.5 Written Agreement and Other Actions.

1.5.1 Voting and Instruction Agreement; Other Matters.
Contemporaneously with the execution hereof, the Approval Shareholders are
executing and delivering to the Company a Voting and Instruction Agreement in
substantially the form of Exhibit 1.5.1 attached hereto and in which they
acknowledge that they are aware of their dissenter's or appraisal rights and
with respect to the Merger and their receipt of a copy of the provisions of
Section RCW 23B.13.020 of the Applicable Corporate Law and have elected not to
exercise such rights.

1.5.2 Written Consent of the Sole Shareholder of Merger Sub.
Contemporaneously with the execution hereof, the Parent is executing and
delivering to Merger Sub a written consent of the sole shareholder of Merger
Sub, in the form of Exhibits Exhibit 1.5.2 attached hereto, pursuant to the
applicable provisions of the Applicable Corporate Law, adopting this Agreement.

1.5.3 All Other Necessary Actions. In addition to the actions set
forth in Sections 1.5.1 and 1.5.2, the Parent, Merger Sub and the Company will
take all actions necessary in accordance with the Applicable Corporate Law and
their respective articles of incorporation and bylaws to cause the Merger to be
consummated on, and subject to, the terms set forth in this Agreement and the
Applicable Corporate Law.

1.6 Conversion of Stock. As of the Effective Time, by virtue of the
Merger and without further action on the part of any holder of shares of Company
Common Stock or any holder of shares of capital stock of Merger Sub:

1.6.1 Merger Sub Capital Stock. Each share of capital stock of Merger
Sub issued and outstanding at the Effective Time shall remain outstanding and
shall be unchanged at and after the Merger and immediately following the
Effective Time shall constitute all of the issued and outstanding capital stock
of the Surviving Corporation.

1.6.2 Cancellation of the Company Treasury Stock and Authorized but
Unissued Stock. All shares of Company Common Stock that are owned by the Company
as treasury stock or by any of its subsidiaries shall be canceled and retired
and shall cease to exist and no stock of the Parent or other consideration shall
be delivered in exchange therefor. All shares of Company Common Stock that are
authorized but not issued shall be canceled and retired and shall cease to exist
and any options, warrants or subscriptions related thereto shall be terminated
and no stock of Parent or other consideration shall be delivered in exchange
therefor.

1.6.3 Merger Consideration. Each share of Company Common Stock (other
than shares to be canceled in accordance with Section 1.6.2) shall be converted
into the right to receive (i) that number of shares of Parent Common Stock equal
to the Final Per Share Common Stock Amount (as defined in Exhibit 1 attached
hereto), and (ii) cash equal to the Final Per Share Cash Amount (as defined in
Exhibit 1 attached hereto); provided, however, that the Trustee shall allocate
the Parent Common Stock received by it first to shares of Company Common Stock
most recently acquired by the Trustee (i.e., the "1042 Shares"). Each share of
Company Common Stock so converted into the right to receive cash equal to the
Final Per

-3-
<PAGE>

Share Cash Amount and shares of Parent Common Stock equal to the Final Per Share
Common Stock Amount (a "Converted Share") shall, by virtue of the Merger and
without any action on the part of the holder thereof, at the Effective Time no
longer be outstanding and shall at such time be canceled and retired and shall
cease at such time to exist, and each holder of a certificate which prior to the
Effective Time validly evidenced any such Converted Share (a "Stock
Certificate") shall thereafter cease to have any rights with respect to such
Converted Share, except, upon the surrender of the Stock Certificate and a duly
executed and completed letter of transmittal in accordance with Section 1.7, the
right to receive such cash and Parent Common Stock at the times and in the
manner set forth herein.

1.7 Exchange of and Payment for Stock.

1.7.1 Delivery of Company Common Stock and Closing Merger
Consideration; Appraisal Rights. Prior to the Closing, the Parent will deliver
to each Principal Shareholder and the Principal Shareholders shall distribute to
each shareholder of the Company ("Shareholder") a letter of transmittal, in
substantially the form attached hereto as Exhibit 1.7, to be used for the
purpose of surrendering Stock Certificates to the Parent in exchange for the
right to receive the Final Per Share Cash Amount and the Final Per Share Common
Stock Amount for each Converted Share evidenced by such Stock Certificate. All
of the Company Common Stock held by the Shareholders will be surrendered by the
Principal Shareholders to the Parent together with properly completed and
executed letters of transmittal (with each such signature guaranteed by a
commercial bank or notarized by a notary public or similar official reasonably
satisfactory to the Parent), and the Parent shall cause to be delivered to the
Shareholders at the Closing the Closing Per Share Cash Amount (as defined in
Exhibit 1 attached hereto) and the Closing Per Share Common Stock Amount (as
defined in Exhibit 1 attached hereto) applicable to each of the Converted Shares
evidenced by the Stock Certificates properly surrendered (with properly executed
and completed letters of transmittal) by each Shareholder to the Parent. If
required by the Applicable Corporate Law but only to the extent required
thereby, shares of Company Common Stock which are issued and outstanding
immediately prior to the Effective Time and which are held by holders of such
shares of Company Common Stock who exercise appraisal rights with respect
thereto in accordance with Section RCW 23B.13.020 of the Applicable Corporate
Law (the "Dissenting Shares") will not be converted into or be exchangeable for
the right to receive the Closing Per Share Cash Amount, the Closing Per Share
Common Stock Amount, the Final Per Share Cash Amount or the Final Per Share
Common Stock Amount, and holders of such shares of Company Common Stock will be
entitled to receive payment of the appraised value of such shares of Company
Common Stock in accordance with the provisions of such Section RCW 23B.13.020 of
the Applicable Corporate Law unless and until such holders fail to perfect or
effectively withdraw or lose their rights to appraisal and payment under the
Applicable Corporate Law. If, after the Effective Time, any such holder fails to
perfect or effectively withdraws or loses such right, such shares of Company
Common Stock will thereupon be treated as if they had been converted into and to
have become exchangeable for, at the Effective Time, the right to receive the
Closing Per Share Cash Amount, the Closing Per Share Common Stock Amount, the
Final Per Share Cash Amount or the Final Per Share Common Stock Amount as
provided hereby and any unpaid dividends and distributions to which the holder
of such shares of Company Common Stock is entitled, without any interest
thereon.

1.7.2 Return of Stock Certificates. In the event the Closing does not
occur by December 31, 1997, any letters of transmittal and Stock Certificates
previously delivered to the Parent shall promptly be returned to the
Shareholders.

-4-
<PAGE>

1.7.3 Assignments. Except for the granting of options to employees of
the Company and the exercise or assignment thereof as permitted by Section 4.10,
the assignment, transfer or other disposition of record or beneficial ownership
of any shares of Company Common Stock may not be made on or after the date
hereof.

1.7.4 Payment In Full Satisfaction of All Rights. The delivery of the
Closing Per Share Cash Amount and the Closing Per Share Common Stock Amount to
the Shareholders with respect to their Converted Shares shall be deemed to be
payment in full satisfaction of all rights pertaining to the outstanding
Converted Shares except for the right to receive additional shares of Parent
Common Stock and cash pursuant to Section 1.9.

1.8 Determination of Closing Merger Consideration.

1.8.1 Delivery of IPO Price to Public; Statement. After the Parent and
its underwriters agree on the initial price to the public for a share of Parent
Common Stock offered in the IPO, at the Closing as set forth in an executed
underwriting agreement, the Parent shall deliver to the Principal Shareholders a
written notice (the "Price Notice") setting forth such initial price to the
public and a statement setting forth a calculation of the Closing Outstanding
Common Stock Number (as defined in Exhibit 1 attached hereto), the Closing Per
Share Cash Amount, the Closing Per Share Common Stock Amount and the Closing
Merger Consideration (as defined in Exhibit 1 attached hereto), payable to the
Shareholders at Closing (the "Statement of Closing Consideration"). The initial
price to the public of a share of Parent Common Stock, as set forth in the Price
Notice, and the Closing Outstanding Common Stock Number, the Closing Per Share
Cash Amount, the Closing Per Share Common Stock Amount and the Closing Merger
Consideration, as set forth in the Statement of Closing Consideration, shall be
final, conclusive and binding for purposes of this Agreement.

1.9 Post-Closing Determination of Total Consideration.

1.9.1 Statement. No later than 30 days after the Closing, the Parent
shall deliver to the Principal Shareholders a statement showing the Final
Outstanding Common Stock Number (as defined in Exhibit 1 attached hereto), the
Final Per Share Cash Amount, the Final Per Share Common Stock Amount and the
Total Consideration (as defined in Exhibit 1 attached hereto) (the "Statement of
Final Per Share Amounts"). For purposes of determining the Statement of Final
Per Share Amounts, the Final Outstanding Common Stock Number, the Final Per
Share Cash Amount, the Final Per Share Common Stock Amount, and the Total
Consideration shall be calculated or determined as of the last day of the month
immediately preceding the month in which the Closing occurs (unless the Closing
occurs on the last day of the month, in which case the month of Closing shall be
used).

1.9.2 Review. After delivery to the Principal Shareholders of the
Statement of Final Per Share Amounts, the Principal Shareholders, the Trustee
and their representatives shall be afforded the opportunity to review and
inspect all of the financial records, work papers, schedules and other
supporting papers relating to the preparation of the Statement of Final Per
Share Amounts, and to consult with the Parent and its representatives regarding
the methods used in the preparation of the Statement of Final Per Share Amounts.

-5-
<PAGE>

1.9.3 Disputes. The Final Outstanding Common Stock Number, the Final
Per Share Cash Amount, the Final Per Share Common Stock Amount and the Total
Consideration as shown on the Statement of Final Per Share Amounts shall be
final, conclusive and binding for purposes of this Agreement, unless the
Principal Shareholders and the Trustee shall deliver to the Parent a written
notice of disagreement ("Notice of Dispute") with any item or items in the
Statement of Final Per Share Amounts within 10 business days following receipt
of the Statement of Final Per Share Amounts, specifying in reasonable detail the
nature and extent of such disagreement; provided, however, that no Notice of
Dispute may be given with respect to any items unless such item involves an
amount of $25,000 or more and provided further that in the event such
disagreement involves an amount less than $25,000, the Statement of Final Per
Share Amounts shall be final, conclusive and binding. If a Notice of Dispute is
not properly given within such time, the Final Outstanding Common Stock Number,
the Final Per Share Cash Amount, the Final Per Share Common Stock Amount and the
Total Consideration as set forth in the Statement of Final Per Share Amounts
shall be final, conclusive and binding for purposes of this Agreement.

1.9.4 Resolution by Parties. If a Notice of Dispute is properly
given, the Parent, the Principal Shareholders and the Trustee agree to negotiate
in good faith and use their best efforts to resolve any disagreement with
respect to the Statement of Final Per Share Amounts. If a resolution is not
reached within 30 days following receipt by the Parent of a properly given
Notice of Dispute, KPMG Peat Marwick LLP ("Accountants") and the Company
Accountants (as defined below) shall together choose a qualified third party
firm of independent accountants ("Third Accountants") within 10 days after a
Notice of Dispute is submitted to them and such Third Accountants shall resolve
such dispute within 30 days after its submission to them. The Parent, the
Principal Shareholders and the Trustee (if the dispute is resolved by them or
the Statement of Final Per Share Amounts otherwise becomes final pursuant hereto
without referral to the Accountants) or the Third Accountants (if a dispute is
resolved by them) shall set forth such resolution in writing and such writing
shall (i) set forth the Final Outstanding Common Stock Number, the Final Per
Share Cash Amount, the Final Per Share Common Stock Amount and the Total
Consideration and (ii) be final, conclusive and binding for purposes of this
Agreement.

1.9.5 Final Determination. Within 10 business days following the
final determination of the Final Outstanding Common Stock Number, the Final Per
Share Cash Amount, the Final Per Share Common Stock Amount and the Total
Consideration as provided in this Section 1.9, (i) the Parent shall deliver to
each Shareholder (a) the cash amount, if any, by which the aggregate of the
Final Per Share Cash Amounts payable to such Shareholder, as finally determined
pursuant hereto, exceeds the aggregate of the Closing Per Share Cash Amounts
paid to such Shareholder at the Closing; and (b) the number of shares of Parent
Common Stock, if any, by which the aggregate of the Final Per Share Common Stock
Amounts deliverable to such Shareholder, as finally determined pursuant hereto,
exceeds the aggregate of the Closing Per Share Common Stock Amounts delivered to
such Shareholder at the Closing; or (ii) each Principal Shareholder shall
deliver and shall cause each Shareholder to deliver to the Parent (a) the cash
amount, if any, by which the aggregate of the Closing Per Share Cash Amounts
paid to such Shareholder at the Closing exceeds the aggregate of the Final Per
Share Cash Amounts payable to such Shareholder as finally determined pursuant
hereto; and (b) the number of shares of Parent Common Stock, if any, by which
the aggregate of the Closing Per Share Common Stock Amounts delivered to such
Shareholder at the Closing exceeds the aggregate of the Final Per Share Common
Stock Amounts deliverable to such Shareholder as finally determined pursuant
hereto.

-6-
<PAGE>

1.9.6 Expenses. Except as set forth on Exhibit 1, the Parent and the
Principal Shareholders shall each pay their own costs incurred in connection
with this Section 1.9, including the fees and expenses of their respective
attorneys and accountants, if any.

1.10 Additional Consideration. On or before April 30, 1998, the
Parent shall pay to the Shareholders additional consideration ("Additional
Consideration") in an amount equal to the product of 2 times the excess, if any
of (i) EBITDA (as defined below) over (ii) Operating EBITDA (as defined below).
The cash portion of the Additional Consideration shall bear interest at the
prime rate of interest charged by Texas Commerce Bank National Association from
January 1, 1998 through the date of payment of the Additional Consideration. The
Additional Consideration shall be apportioned between cash and Parent Common
Stock in the same ratios as set forth in Exhibit 1 for the Final Per Share Cash
Amount and the Final Per Share Common Stock Amount. The term "EBITDA" means the
sum of (i) Additional Net After-Tax Income (as defined below), plus (ii) the
amount of state, local and federal income and franchise taxes deducted from
Additional Net After-Tax Income, plus (iii) the amount of depreciation and
amortization deducted from Additional Net After-Tax Income, plus (iv) the amount
of interest expense deducted from Additional Net After-Tax Income, plus (v) the
increase to Additional Net After-Tax Income that would result from application
of the annual savings of the type described in the Letter of Intent among the
Parent, the Company and the Principal Shareholders dated June 3, 1997 to the
period from January 1, 1997 through the Closing Date (the "Pre-Closing Period"),
plus (vi) the stock and related tax bonuses contemplated for certain key
employees, the bonuses paid to certain employees related to their exercise of
stock options, and an adjustment to exclude any net income (or loss)
attributable to MacDonald-Miller Residential ("MMR") for the Pre-Closing Period
(the amounts in clauses (i) through (vi) to be determined in accordance with
GAAP). The term "Additional Net After-Tax Income" shall mean the net income (or
loss) of the Company for the period January 1, 1997 through December 31, 1997
(the "Earn-Out Period") after deduction for state, local and federal income and
franchise taxes and without giving effect to extraordinary or non-recurring
items, non-recurring gains and losses (including the sale of the Condominiums
(as defined)), interest income or investment income, determined in accordance
with GAAP. The term "Operating EBITDA" means $2,613,012.80.

For the portion of any Additional Consideration that shall be paid in
Parent Common Stock, the value of such Parent Common Stock ("Stock Value") shall
be calculated using the average of the daily closing prices (or if no closing
price is reported, the average of the daily closing bid and asked prices) of a
share of the Parent Common Stock for the ten consecutive trading days ending on
and including the date which is three trading days prior to the end of the Earn-
Out Period on the principal national securities exchange if any, on which such
shares are admitted for trading, on the National Association of Securities
Dealers, Inc. National Market System if such shares are quoted thereon or, if
such shares are not quoted thereon, in the over-the-counter market in the United
States on which such shares are publicly traded; provided that if the Parent
Common Stock is not then admitted to trading on any national securities exchange
or quoted on the National Association of Securities Dealers, Inc. National
Market System or otherwise traded in the over-the-counter market, the Stock
Value shall be the value of a share of Parent Common Stock as of the last day of
the Earn-Out Period as reasonably determined by the Board of Directors of the
Parent.

-7-
<PAGE>

2. REPRESENTATIONS AND WARRANTIES OF THE
TRUSTEE, THE COMPANY AND THE PRINCIPAL SHAREHOLDERS

2.1 Representations and Warranties of the Trustee. The Trustee hereby
represents and warrants to the Parent and Merger Sub that the Trustee owns,
beneficially and of record, with full power to vote, the number of shares of
Company Common Stock set forth beside the Trustee's name on Exhibit 2.2 and such
shares are so held by the Trustee free and clear of all liens, encumbrances and
adverse claims whatsoever.

2.2 Representations and Warranties of the Company and the Principal
Shareholders. The Company and the Principal Shareholders, jointly and
severally, hereby represent and warrant to the Parent and Merger Sub as follows:

2.2.1 Exhibit 2. The statements in Exhibit 2 attached hereto are true
and correct.

2.2.2 Stock Ownership. Each Shareholder owns, beneficially and of
record, with full power to vote, the number of shares of Company Common Stock
set forth beside such Shareholder's name on Exhibit 2.2 and such shares are so
held by such Shareholder free and clear of all liens, encumbrances and adverse
claims whatsoever.

2.2.3 Authority. Each Principal Shareholder has full right, power,
legal capacity and authority to (i) execute, deliver and perform this Agreement,
and all other documents and instruments referred to herein or contemplated
hereby to be executed, delivered and performed by such Principal Shareholder
(each a "Shareholder Related Document") and (ii) consummate the transactions
contemplated herein and thereby. This Agreement has been duly executed and
delivered by the Principal Shareholders and constitutes, and any Shareholder
Related Document, when duly executed and delivered by the Principal Shareholders
named as parties therein will constitute, legal, valid and binding obligations
of such Principal Shareholders enforceable against such Principal Shareholders
in accordance with their respective terms and conditions, except as such
enforcement may be limited by bankruptcy, insolvency, reorganization, moratorium
or other similar laws affecting the enforcement of creditors' rights generally
and by general principles of equity (whether applied in a proceeding at law or
in equity).

2.2.4 Consents. Except as set forth on Exhibit 2.2.4, no approval,
consent, order or action of or filing with any court, administrative agency,
governmental authority or other third party is required for the execution,
delivery or performance by the Principal Shareholders of this Agreement or any
Shareholder Related Document. The execution, delivery and performance by the
Principal Shareholders of this Agreement and any Shareholder Related Documents
do not violate any mortgage, indenture, contract, agreement, lease or commitment
or other instrument of any kind to which any Principal Shareholder is a party or
by which any Principal Shareholder or such Principal Shareholder's assets or
properties may be bound or affected or any law, rule or regulation applicable to
any Principal Shareholder or any court injunction, order or decree or any valid
and enforceable order of any governmental agency in effect as of the date hereof
having jurisdiction over any Principal Shareholder.

2.2.5 No Warranties of Future Performance. The Principal Shareholders
and the Company acknowledge that they have had the opportunity to inspect the
Parent's and Merger Sub's business and properties, and understand that no
warranties of future performance of the Parent or Merger Sub have been

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or are being made by the Parent or Merger Sub, irrespective of any forecasts,
budgets or other financial information relating to the future that may have been
provided by the Parent or Merger Sub.

3. REPRESENTATIONS AND WARRANTIES
OF THE PARENT AND MERGER SUB

3.1 Representations and Warranties. The Parent hereby represents and
warrants to the Principal Shareholders and the Company as follows:

3.1.1 Organization. The Parent is a corporation duly organized,
validly existing and in good standing under the laws of the State of Texas. The
Parent is duly qualified or licensed as a foreign corporation authorized to do
business in all states in which any of its assets or properties may be situated
or where its business is conducted except where the failure to obtain such
qualification or license would not have a Parent Material Adverse Effect (as
defined below).

3.1.2 Capitalization of the Parent. As of the execution date of this
Agreement, the total authorized capital stock of the Parent is as set forth in
the Confidential Information Statement dated August 15, 1997. The outstanding
shares of Parent Common Stock and Preferred Stock, par value $.001 ("Parent
Preferred Stock"), have been duly and validly issued and are fully paid and non-
assessable.

3.1.3 Authority. The Parent has the requisite power and authority to
execute, deliver and perform this Agreement and all documents and instruments
referred to herein or contemplated hereby (the "Parent Related Documents") and
to consummate the transactions contemplated herein and thereby. This Agreement
has been duly executed and delivered by the Parent and constitutes, and all the
Parent Related Documents, when executed and delivered by the Parent will
constitute, legal, valid and binding obligations of the Parent, enforceable in
accordance with their respective terms and conditions except as such enforcement
may be limited by bankruptcy, insolvency, reorganization, moratorium or other
similar laws affecting the enforcement of creditors' rights generally and by
general principles of equity (whether applied in a proceeding at law or in
equity).

3.1.4 Consents. Except as provided on Exhibit 3.1.4, no approval,
consent, order or action of or filing with any court, administrative agency,
governmental authority or other third party is required for the execution,
delivery or performance by the Parent of this Agreement or the Parent Related
Documents or the consummation by the Parent of the transactions contemplated
hereby, except for (i) the filing of the Parent's registration statement with
respect to the IPO ("Registration Statement") with the U.S. Securities and
Exchange Commission ("SEC") pursuant to the Securities Act and the SEC's
declaration of effectiveness of such Registration Statement and the completion
of all necessary filings required under, and the obtaining of all necessary
consents and approvals required pursuant to, state securities or "blue sky" laws
in connection with the IPO, and (ii) the filing of the Articles of Merger with
the Secretary of State of Washington.

3.1.5 Defaults. The Parent is not in default under or in violation
of, and the execution, delivery and performance of this Agreement and the Parent
Related Documents and the consummation by the Parent of the transactions
contemplated hereby and thereby will not result in a default under or in
violation of (i) any mortgage, indenture, charter or bylaw provision, contract,
agreement, lease, commitment or other instrument of any kind to which the Parent
is a party or by which the Parent or any of its properties or assets may be
bound or affected or (ii) any law, rule or regulation applicable to the Parent
or any court

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injunction, order or decree, or any valid and enforceable order of any
governmental agency in effect as of the date hereof having jurisdiction over the
Parent, which default or violation prevents the Parent from consummating the
transactions contemplated hereby or is reasonably likely to have a Parent
Material Adverse Effect.

3.1.6 Investment Company. The Parent is not an "investment company"
or a company "controlled" by an "investment company" within the meaning of the
Investment Company Act of 1940, as amended, or a "holding company," a
"subsidiary company" of a "holding company" or an "affiliate" of a "holding
company" or a "public utility" within the meaning of the Public Utility Holding
Company Act of 1935, as amended.

3.1.7 Financial Statements. The Parent has provided certain financial
statements to the Principal Shareholders ("Parent Financial Statements") and
such Parent Financial Statements have been prepared in accordance with GAAP and
fairly present the consolidated financial position, results of operations and
cash flows of the Parent and its then existing consolidated subsidiaries as of
the dates and for the periods indicated, subject to normal year-end adjustments
and any other adjustments described therein or in the notes or schedules
thereto. The books and records of the Parent have been kept in reasonable detail
and accurately and fairly reflect the transactions of the Parent.

3.1.8 Taxes. The Parent has either accrued, discharged or caused to
be discharged, as the same have become due, or the Parent Financial Statements
contain adequate accruals and reserves for, all taxes, interest thereon, fines
and penalties of every kind and character, attributable or relating to the
properties and business of the Parent for the period ended covered by the Parent
Financial Statements.

3.1.9 Full Authority. The Parent has the corporate power and
authority and has obtained all licenses, permits, qualifications, and other
documentation (including permits required under applicable Environmental Law, as
defined in Exhibit 2) necessary to own and/or operate its businesses, properties
and assets and to carry on its businesses as being conducted on the date of this
Agreement, except such licenses, permits, qualifications or other documentation,
the failure to obtain which is not reasonably likely to result in a Parent
Material Adverse Effect, and such businesses are now being conducted and such
assets and properties are being owned and/or operated in compliance with all
applicable laws (including Environmental Law), ordinances, rules and regulations
of any governmental agency of the United States, any state or political
subdivision thereof, or any foreign jurisdiction, all applicable court or
administrative agency decrees, awards and orders and all such licenses, permits,
qualifications and other documentation, except where the failure to comply will
not have a Parent Material Adverse Effect, and there is no existing condition or
state of facts that would give rise to a violation thereof or a liability or
default thereunder that is reasonably likely to have a Parent Material Adverse
Effect.

3.1.10 Access. The Parent has cooperated fully in permitting the
Principal Shareholders and their representatives to make a full investigation of
the properties, operations and financial condition of the Parent and has
afforded the Principal Shareholders and their representatives reasonable access
to the offices, buildings, real properties, machinery and equipment, inventory
and supplies, records, files, books of account, tax returns, agreements and
commitments and personnel of Parent.

3.1.11 Disclosure. No representation or warranty by the Parent in this
Agreement, and no statement contained in any certificate delivered by the Parent
to the Principal Shareholders pursuant to this

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<PAGE>

Agreement, contains any untrue statement of a material fact or omits any
material fact necessary in order to make the statements herein or therein, in
light of the circumstances under which they are or were made, not misleading.

3.1.12 Parent Material Adverse Effect. The term "Parent Material
Adverse Effect" shall mean an adverse effect on the properties, assets,
financial position, results of operations, long-term debt, other indebtedness,
cash flows or contingent liabilities of the Parent and its consolidated
subsidiaries, taken as a whole, in an amount of $100,000 or more.

3.1.13 Tax-Free Reorganization. With respect to the qualification of
the Merger as a reorganization within the meaning of Section 368(a) of the Code:

(i) The Parent has no plan or intention to sell, exchange or
otherwise dispose or liquidate the Surviving Corporation, to merge the
Surviving Corporation with or into any other corporation, to sell or
otherwise dispose of its Surviving Corporation Common Stock except for
transfers of Surviving Corporation Common Stock to corporations of which
the Parent has control (within the meaning of Section 368(a) of the Code)
at the time of such transfer, or to cause the Surviving Corporation to sell
or otherwise dispose of any of its assets or of any assets acquired in the
Merger, except for dispositions made in the ordinary course of business or
transfers of assets to a corporation of which the Surviving Corporation has
control (within the meaning of Section 368(a) of the Code) at the time of
such transfer.

(ii) The Parent has no plan or intention to cause the Surviving
Corporation, after the Merger, to issue additional shares of its stock that
would result in the Parent losing control of the Surviving Corporation
within the meaning of Section 368(c) of the Code.

(iii) Following the Merger, the Surviving Corporation will continue
the Company's historic business or use a significant portion of its
historic business assets in a business.

(iv) Except as provided in Section 8.20 below, if the Merger is
effected, the Parent and Merger Sub will each pay their respective
expenses, if any, incurred in connection with the Merger.

(v) The Parent Common Stock that will be issued in connection with
the Merger is voting stock within the meaning of Section 368(c) of the
Code.

(vi) At the Effective Time, neither the Parent nor Merger Sub will
have any outstanding warrants, options, convertible securities, or any
other right pursuant to which any person could acquire stock in the Parent
or Merger Sub which, if exercised or converted, would affect the Parent's
acquisition or retention of control of the Surviving Corporation.

(vii) Neither the Parent nor Merger Sub is an investment company as
defined in Section 368(a)(2)(F) of the Code.

(viii) None of the Parent Common Stock received by the Shareholders as
a part of the Final Merger Consideration will be separate consideration
for, or allocable to, any employment agreement.

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<PAGE>

(ix) Neither the Parent nor Merger Sub is under the jurisdiction of
a court in a case under Title 11 of the United States Code, or a
receivership, foreclosure, or similar proceeding in a federal or state
court.

3.1.14 No Warranties of Future Performance. The Parent and Merger Sub
acknowledge that they have had the opportunity to inspect the Principal
Shareholders' and the Company's business and properties, and understand that no
warranties of future performance of the Principal Shareholders or the Company
have been or are being made by the Principal Shareholders or the Company,
irrespective of any forecasts, budgets or other financial information relating
to the future that may have been provided by the Principal Shareholders or the
Company.

3.2 Representations and Warranties Concerning the Merger Sub. The Parent
and Merger Sub, jointly and severally, hereby represent and warrant to the
Principal Shareholders and the Company as follows:

3.2.1 Organization and Standing. Merger Sub is a corporation duly
incorporated, validly existing and in good standing under the laws of the State
of Washington.

3.2.2 Capital Structure. The authorized capital stock of Merger Sub
consists of 5,000 shares of common stock, par value $.01 per share, 1,000 of
which are validly issued and outstanding, fully paid and nonassessable and are
owned by the Parent free and clear of all liens, encumbrances and adverse
claims.

3.2.3 Authority. Merger Sub has the corporate power and authority to
execute, deliver and perform this Agreement and to consummate the transactions
contemplated hereby. The execution and delivery of this Agreement, the
performance by Merger Sub of its obligations hereunder and the consummation of
the transactions contemplated hereby have been duly authorized by its Board of
Directors and the Parent as its sole shareholder, and, except for the corporate
filings required by state law, no other corporate proceedings on the part of
Merger Sub are necessary to authorize this Agreement and the transaction
contemplated hereby. This Agreement has been duly and validly executed and
delivered by Merger Sub and (assuming the due authorization, execution and
delivery hereof by the Company) constitutes a valid and binding obligation of
Merger Sub enforceable against Merger Sub in accordance with its terms, except
as such enforcement may be limited by bankruptcy, insolvency, reorganization,
moratorium or other similar laws affecting the enforcement of creditors' rights
generally and by general principles of equity (whether applied in a proceeding
at law or in equity).

4. CERTAIN COVENANTS, AGREEMENTS AND PRE-CLOSING MATTERS

4.1 Agreements of the Principal Shareholders to be Effective Upon Closing.
Effective upon Closing, and without further action on the part of any party or
other person, the Principal Shareholders covenant and agree as follows:

4.1.1 Covenant Not to Compete.

(i) For the considerations specified in this Agreement and in
recognition that the covenants by the Principal Shareholders in this
Section are a material inducement to the Parent to

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enter into and perform this Agreement, each Principal Shareholder agrees
that for the period from the Closing Date to the later to occur of (a) the
date which is three years after the Closing Date or (b) the date which is
one year following any termination of such Principal Shareholder's
employment with the Company, such Principal Shareholder will not represent,
engage in, carry on, or have a financial interest in, directly or
indirectly, individually, as a member of a partnership or limited liability
company, equity owner, shareholder (other than as a shareholder of the
Parent or as a shareholder of less than one percent of the issued and
outstanding stock of a publicly-held company whose gross assets exceed $100
million), investor, officer, director, trustee, manager, employee, agent,
associate or consultant engage in any business that involves indoor air
quality, heating, ventilation, air conditioning, appliance, mechanical
construction or sewer cleaning products or services within a 100-mile
radius of the cities of Seattle, Washington and Portland, Oregon; provided,
however, that for each Principal Shareholder other than Fredric J. Sigmund,
(i) if such Principal Shareholder's employment is terminated without Cause
(as such term is defined in the Employment Agreement attached hereto as
Exhibit 5.3.3A for such Principal Shareholder) the noncompete period
applicable thereafter to such Principal Shareholder in Section 4.1.1(i)(b)
of this Agreement shall be reduced to six months and (ii) if the Employment
Agreement for such Principal Shareholder expires, the non-compete period
applicable thereafter to such Principal Shareholder shall be equal to the
then in effect severance period for such Principal Shareholder; provided
further that (i) the Principal Shareholders (other than Gary S. Kuhlman)
may continue to engage in the business of residential indoor air quality,
heating, ventilation and air conditioning installation, replacement, repair
and maintenance services through MMR and (ii) that in the event the
Principal Shareholders cease at any time to hold a controlling interest in
MMR, the words "MacDonald" or "Miller" shall not be used in the name or
marketing of MMR following such loss of such controlling interest.

(ii) Each Principal Shareholder agrees that the limitations set
forth herein on such Principal Shareholder's rights to compete with the
Parent and its affiliates as set forth in clause (i) are reasonable and
necessary for the protection of Parent and its affiliates. In this regard,
each Principal Shareholder specifically agrees that the limitations as to
period of time and geographic area, as well as all other restrictions on
such Principal Shareholder's activities specified herein, are reasonable
and necessary for the protection of the Parent and its affiliates. Each
Principal Shareholder agrees that, in the event that the provisions of this
Section should ever be deemed to exceed the scope of business, time or
geographic limitations permitted by applicable law, such provisions shall
be and are hereby reformed to the maximum scope of business, time or
geographic limitations permitted by applicable law.

(iii) Each Principal Shareholder agrees that the remedy at law for
any breach by such Principal Shareholder of this Section 4.1.1 will be
inadequate and that the Parent shall be entitled to injunctive relief.

4.1.2 Release. Effective as of the Effective Time, each Principal
Shareholder does hereby (i) release, acquit and forever discharge the Surviving
Corporation from any and all liabilities, obligations, claims, demands, actions
or causes of action arising from or relating to any event, occurrence, act,
omission or condition occurring or existing on or prior to the Effective Time,
including, without limitation, any claim for indemnity or contribution from the
Surviving Corporation in connection with the obligations or liabilities of such
Principal Shareholder hereunder, except for salary and benefits payable to such
Principal Shareholder

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as an employee in the ordinary course of business and lease payments payable to
F&V Investments for the property located at 7717 Detroit S.W., Seattle,
Washington 98106-1903 (the "Property"); (ii) waive all breaches, defaults or
violations of any agreement applicable to the Company Common Stock (other than
this Agreement) and agree that any and all such agreements (other than this
Agreement) are terminated as of the Effective Time, and (iii) waive any and all
preemptive or other rights to acquire any shares of capital stock of the Company
and release any and all claims arising in connection with any prior default,
violation or failure to comply with or satisfy any such preemptive or other
rights.

4.2 Elimination of Expense. Prior to Closing, the Principal Shareholders
will produce evidence to the reasonable satisfaction of the Parent and its
lenders that the expenses of the Company as described in the Letter of Intent
between the Parent, the Company and the Principal Shareholder dated June 3, 1997
have been eliminated as expenses of the Surviving Corporation as of and
following the Closing Date.

4.3 Deferred Compensation Plans. Prior to Closing, the Principal
Shareholders will cause all current or future obligations of the Company under
the split dollar life and other deferred compensation plans covering any
Shareholder or any employee of the Company to be satisfied in full (including
current or deferred tax liabilities arising therefrom) all in accordance with
the provisions of Exhibit 4.3 attached hereto.

4.4 Audit. Prior to Closing, the Company's firm of independent
accountants (the "Company Accountants") shall complete an audit of the Company
for the fiscal year ended December 31, 1996 and for the period from such date
through June 30, 1997, and such additional audit and/or review work as may be
requested by the Parent through and including the Closing Date and provide its
report to the Parent and the Principal Shareholders. The Accountants shall
confirm the audit/review work of the Company Accountants.

4.5 Certain Payables and Receivables. On or prior to Closing, the
Principal Shareholders shall cause to be paid in full in cash all accounts
receivable, notes receivable and advances payable by any Shareholder to the
Company and the Company shall pay in full in cash all accounts payable, notes
payable and advances payable by the Company to any Shareholder.

4.6 Pre-Closing Covenants and Agreements. The Principal Shareholders and
the Company jointly and severally agree as set forth in Exhibit 4.6 attached
hereto.

4.7 Confidentiality. Prior to the Effective Time, none of the Parent,
Merger Sub, the Company or the Principal Shareholders will disclose the terms of
this Agreement or the Merger to any person other than their respective
directors, officers, agents or representatives, except as otherwise provided
herein or unless required by law. The Company may make appropriate disclosures
of the general nature of the Merger to its employees, vendors and customers to
protect the Company's goodwill and to facilitate the Closing. The Parent and
Merger Sub may disclose pertinent information regarding the Merger to its
existing and prospective investors, lenders, or investment bankers or financial
advisors for the purpose of obtaining financing, including, without limitation,
financing related to the IPO or other offerings of its securities, and may
describe this Agreement and the transactions contemplated hereby in any
registration statement filed by the Parent under the Securities Act and in
reports filed by the Parent under the Securities Exchange Act of 1934, and may
file this Agreement as an exhibit to any thereof. The Parent may also make
appropriate disclosures of the general nature of the Merger and the identity,
nature and scope of the Company's operations to prospective acquisition
candidates in connection with the Parent's efforts to effect additional

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acquisitions. Each party will have mutual approval rights with respect to
outlines of press releases or other communications (including employee
presentations) concerning the prospective merger.

4.8 Tax-Free Reorganization. Unless the other parties shall otherwise
agree in writing, each of the Principal Shareholders, the Parent, Merger Sub,
the Company or the Surviving Corporation shall use their best efforts to qualify
the Merger as a reorganization within the meaning of Section 368(a) of the Code
and none of them shall knowingly take or fail to take any action, that would
jeopardize the qualification of the Merger as such a reorganization.

4.9 Company Plans. Except as otherwise contemplated by this Agreement,
the Company Plans (as defined in Exhibit 2) described on Exhibit 4.9 in effect
at the date of this Agreement will remain in effect for three years following
the Closing unless otherwise agreed to by the Parent and the Principal
Shareholders.

4.10 HSR Act. The Parent, the Principal Shareholders and the Company shall
take all reasonable actions necessary to make all filings, if any, required
under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ("HSR
Act") in connection with the transaction contemplated hereby and to obtain the
termination or expiration of the waiting period thereunder.

4.11 Purchase of Certain Receivables. If any accounts receivable included
in current assets of the Company for purposes of determining Working Capital (as
defined in Exhibit 1) remain unpaid in full on the second anniversary of the
Closing, the Principal Shareholders shall, upon written request by the Surviving
Corporation made within 30 days after the second anniversary of the Closing,
purchase the same from the Surviving Corporation, without recourse, for the
uncollected amount thereof minus the sum of (i) the unused portion of the
reserves for bad debts that were on the books of the Company as of the Closing
and (ii) the amount of any billings in excess of costs on the books of the
Company as of the Closing which are directly traceable to such accounts
receivable. Prior to the date the Additional Consideration, if any, is
disbursed, the Principal Shareholders shall make a good faith estimate of the
amount of accounts receivable to be purchased hereunder and such amount (net of
the reserve for bad debts and the amount of any related billings in excess of
costs, as provided above), if any, shall be deducted from the Additional
Consideration and applied as a reserve against such purchase obligation (the "AR
Reserve"). If the AR Reserve is insufficient, 8% interest per annum from the
Closing to the date of payment will be charged on the shortfall. If the AR
Reserve is more than sufficient, the excess will be disbursed to the
Shareholders in the same manner as Additional Consideration was disbursed.
Collections from an account debtor after the Closing shall be applied first to
reduction of the oldest account receivable of such account debtor unless there
is a dispute and an adjustment on a specific invoice.

4.12 Certain Condominiums. The purchase price delivered to the Company for
the sale of the properties listed on Exhibit 4.12 (the "Condominiums") shall be
included in current assets for the purposes of determining Working Capital but
shall be excluded from Additional Net After-Tax Income. The Principal
Shareholders shall release, acquit and forever discharge the Company from any
and all liabilities, obligations, claims, demands, actions, or causes of action
arising from or relating to any event, occurrence, act, omission or condition
relating to such properties, including, without limitation, any claim for
indemnity or contribution from the Company in connection with the obligations or
liabilities of the Principal Shareholders hereunder.

4.13 Certain Matters Related to the ESOP.

4.13.1 Suspension of ESOP Contributions. Prior to the Closing Date,
the Company shall not make any contributions to the MacDonald-Miller Industries,
Inc. Employee Stock Ownership Plan ("ESOP").

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4.13.2 Amendment of ESOP; Distribution of ESOP Investments. Upon
receipt of an IRS favorable determination letter and prior to the second
anniversary of the Closing, the Parent and the Company shall distribute the ESOP
accounts to the ESOP participants.

4.14 ESOP Expenses. Expenses of the ESOP's operation (including post-
Merger operation), transition and eventual termination shall be paid by the
Company.

4.15 Indemnification of Officers and Directors of the Company. The Parent
agrees that the Company shall maintain in effect for at least five (5) years
from the Closing Date the indemnification provisions in the Articles of
Incorporation of the Company and its subsidiaries as presently in effect to the
extent such indemnification provisions would apply to acts or omissions of the
present officers and directors and the Company shall maintain in effect director
and officer liability insurance coverage for its officers and directors with
coverage of $10,000,000 and a deductible not in excess of $50,000 and to the
extent it does not increase premiums on such director and officer policies, the
Parent will procure tail coverage for such directors and officers at the
expiration of such five (5) year period.

4.16 Errors and Omissions Insurance. The Parent agrees that the Company
shall maintain in effect a policy covering professional errors and omissions for
engineering and related coverage for the Company and the Company's professional
engineers with coverage of $1,000,000 and a deductible not in excess of
$100,000. In the event any such coverage is canceled for a professional
engineer, the Parent shall purchase appropriate "tail" coverage for a period not
to exceed the applicable statute of limitations for the applicable errors and
omissions.

4.17 Other Insurance. The Parent agrees that the Company shall maintain in
effect insurance policies for general liability, automobile, property, completed
operations, equipment, workers' compensation, employer practices liability,
employee benefits liability, pollution/indoor air quality, employee dishonesty
and depositor's forgery liability and umbrella liability coverage with coverage
amounts and deductible amounts as agreed by the Parent and the Company.

4.18 Releases. On or prior to the Closing, the Parent shall procure the
release of the Principal Shareholders under any guaranty or indemnity agreement
relating to the business or operations of the Company.

4.19 Parent Guaranty. The Parent hereby unconditionally guarantees the
performance of all Merger Sub's obligations under this Agreement (including any
obligations of the Merger Sub in any Exhibits hereto).

4.20 Recommendation by the Company; Cooperation in Preparation of
Registration Statement and Proxy and in Meeting of Shareholders. The Company's
Board of Directors shall recommend that the Shareholders vote in favor of the
Merger. The Company, the Principal Shareholders and the Trustee shall cooperate
fully with the Parent and Merger Sub in the (i) preparation of a registration
statement on Form S-4 for the registration of the Parent Common Stock to be
delivered to the Shareholders pursuant to this Agreement, (ii) preparation of a
proxy statement in connection with such registration and the Merger, and (iii)
planning, preparation and carrying out of any meetings of Shareholders in
connection with such registration and the Merger.

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4.21 Sale of MMR. The Company shall divest itself of MMR prior to the
Closing. To the extent that the Company realizes actual value as a result of
such divestiture, such value shall be taken into account in the calculation of
Working Capital or Long-Term Debt, as the case may be.

5. CONDITIONS PRECEDENT; CLOSING DELIVERIES

5.1 Conditions Precedent to the Obligations of the Parent and Merger Sub.
The obligations of the Parent and Merger Sub to effect the Merger under this
Agreement are subject to the satisfaction of each of the following conditions,
unless waived by the Parent in writing to the extent permitted by applicable
law:

5.1.1 Accuracy of Representations and Warranties. The representations
and warranties of the Principal Shareholders and the Company contained in this
Agreement, in Exhibit 2 and the Disclosure Schedule referred to therein and the
other Exhibits provided by the Principal Shareholders or the Company pursuant to
this Agreement or in any closing certificate or document delivered to the Parent
pursuant hereto shall be true and correct at and as of the Closing Date as
though made at and as of that time other than such representations and
warranties as are specifically made as of another date, and the Principal
Shareholders and the Company shall each have delivered to the Parent and Merger
Sub a certificate to that effect.

5.1.2 Performance of Covenants. The Principal Shareholders and the
Company shall have performed and complied with all covenants of this Agreement
to be performed or complied with by them at or prior to the Closing Date, and
the Principal Shareholders and the Company shall each have delivered to the
Parent and Merger Sub a certificate to that effect.

5.1.3 Legal Actions or Proceedings. No legal action or proceeding
shall have been instituted after the date hereof against the Company or against
the Parent or Merger Sub arising by reason of the acquisition of the Company
pursuant to this Agreement, which is reasonably likely (i) to restrain, prohibit
or invalidate the consummation of the transactions contemplated by this
Agreement, (ii) to have a Company Material Adverse Effect or (iii) to have a
Parent Material Adverse Effect after giving effect to the consummation of the
transactions contemplated by this Agreement, and the Principal Shareholders and
the Company shall each have delivered to the Parent and Merger Sub a certificate
to that effect.

5.1.4 Approvals. The Company and the Principal Shareholders shall
have procured all of the consents, approvals and waivers of third parties or any
regulatory body or authority, whether required contractually or by applicable
law or otherwise necessary for the execution, delivery and performance of this
Agreement (including the Company Related Documents and the Shareholder Related
Documents) by the Company and the Shareholders prior to the Closing Date, and
the Shareholders and the Company shall each have delivered to the Parent and
Merger Sub a certificate to that effect.

5.1.5 Closing Deliveries. All documents required to be executed or
delivered at Closing by the Principal Shareholders pursuant to Section 5.3 of
this Agreement shall have been so executed and delivered.

5.1.6 No Casualty, Loss or Damage. No casualty, loss or damage shall
have occurred on or prior to the Effective Time to any of the properties or
assets of the Company.

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5.1.7 Licenses, etc. The Company shall have obtained all such
licenses and permits as are legally required for the continued operation of the
business after the Effective Time, except such licenses and permits, the absence
of which will not have a Company Material Adverse Effect.

5.1.8 No Material Adverse Change. Since December 31, 1996, there
shall not have been any event that in the reasonable judgment of the Parent
adversely affects the properties, assets, financial condition, results of
operations, cash flows, businesses or prospects of the Company.

5.1.9 IPO. The Parent shall have completed the IPO on terms
acceptable to it, and the net proceeds thereof shall have been received by the
Parent.

5.1.10 Certain Corporate Actions. All necessary director and
shareholder resolutions, waivers and consents required to consummate the
transactions contemplated hereunder shall have been executed and delivered.

5.1.11 HSR Act. All required filings, if any, under the HSR Act with
respect to the transactions contemplated hereby shall have been made and the
waiting periods thereunder shall have been terminated or shall have expired.

5.2 Conditions Precedent to the Obligations of the Principal Shareholders
and the Company. The obligations of the Principal Shareholders and the Company
under this Agreement are subject to the satisfaction of each of the following
conditions, unless waived by the Principal Shareholders and the Company in
writing to the extent permitted by applicable law:

5.2.1 Accuracy of Representations and Warranties. The representations
and warranties of the Parent and Merger Sub contained in this Agreement or in
any closing certificate or document delivered to the Principal Shareholders or
the Company pursuant hereto shall be true and correct on and as of the Closing
Date as though made at and as of that date other than such representations and
warranties as are specifically made as of another date, and the Parent and
Merger Sub shall have delivered to the Principal Shareholders and the Company a
certificate to that effect.

5.2.2 Performance of Covenants. The Parent and Merger Sub shall have
performed and complied with all covenants of this Agreement to be performed or
complied with by them at or prior to the Closing Date and the Parent and Merger
Sub shall have delivered to the Principal Shareholders and the Company a
certificate to such effect.

5.2.3 Approvals. The Parent shall have procured all of the consents,
approvals and waivers specified in Exhibit 3.1.4 prior to the Closing Date, and
the Parent shall have delivered to the Principal Shareholders and the Company a
certificate to that effect.

5.2.4 Closing Deliveries. All documents required to be executed or
delivered at Closing by the Parent pursuant to Section 5.4 of this Agreement
shall have been so executed and delivered.

5.2.5 HSR Act. All required filings, if any, under the HSR Act with
respect to the transactions contemplated hereby shall have been made and the
waiting periods thereunder shall have been terminated or shall have expired.

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5.3 Deliveries by the Principal Shareholders at the Closing. At the
Closing, simultaneously with the deliveries by the Parent specified in Section
5.4 below, and in addition to any deliveries required to be made by the
Principal Shareholders and the Company pursuant to any other transaction
document at the Closing, the Principal Shareholders shall deliver or cause to be
delivered to the Parent the following:

5.3.1 Closing Certificates. The Principal Shareholders and the
Company shall deliver the certificates required pursuant to Sections 5.1.1,
5.1.2, 5.1.3, 5.1.4 and 5.1.5.

5.3.2 Stock Transfer Restriction Agreement. The Principal
Shareholders shall execute and deliver and shall cause the Shareholders to
execute and deliver a Stock Transfer Restriction Agreement on the Closing Date,
effective as of the Effective Time, substantially in the form set forth in
Exhibit 5.3.2.

5.3.3 Employment Agreements. Each Principal Shareholder and certain
other employees of the Company specified on Exhibit 5.3.3 shall execute and
deliver an Employment Agreement (with the insertion of the appropriate Section
7(b) based on whether such Principal Shareholder or any such employee is
designated an "Executive or Key Employee" or "Manager" on Exhibit 5.3.3 and with
the blanks appropriately completed as set forth in a confidential letter between
the Company and the Parent) with the Company on the Closing Date, effective as
of the Effective Time, substantially in the form set forth in Exhibit 5.3.3A.

5.3.4 Lease Agreement. Frederic J. Sigmund shall cause F&V
Investments, the owner of the Property, to execute and deliver a lease agreement
with the Company substantially in the form attached as Exhibit 5.3.4.

5.3.5 Opinion of Counsel for the Principal Shareholders and the
Company. The Principal Shareholders shall deliver the favorable opinion of
Lasher Holzapfel Sperry & Ebberson, P.L.L.C., counsel to the Principal
Shareholders and the Company, and Patricia Parks, counsel to the ESOP, each
dated the Effective Time, substantially in the form and to the effect set forth
in Exhibit 5.3.5-A and Exhibit 5.3.5-B, respectively, attached hereto.

5.3.6 Documents, Stock Certificates. The Principal Shareholders shall
execute and deliver, and shall cause the Company and the Shareholders to execute
and deliver, the documents, certificates, opinions, instruments and agreements
required to be executed and delivered by the Company or its officers or
directors or the Shareholders at the Closing as contemplated hereby or as may be
reasonably requested by the Parent and shall deliver or cause to be delivered
the documents and evidence required under Section 4. Stock Certificates
representing all of the outstanding Company Common Stock and properly executed
and completed letters of transmittal shall be delivered by the Principal
Shareholders to the Parent.

5.3.7 Discharge of Indebtedness, Releases, Etc. The indebtedness of
the Company referred to in Exhibit 5.3.8 attached hereto, including, but not
limited to, any debt of the Company in any way related to the Condominiums,
("Terminated Obligations") shall be paid in full or refinanced on terms
acceptable to the Parent, and the Principal Shareholders shall cause all holders
of any such Terminated Obligations to deliver to the Parent, in form reasonably
satisfactory to the Parent and the lenders to the Parent or Merger Sub, such
customary releases, termination statements, consents, approvals or other
documents or instruments required, in the judgment of the Parent, to release and
terminate all liens, security interests,

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claims, or rights of such holders against the Surviving Corporation or the
Parent or any of their respective assets in connection therewith.

Except as set forth in the next paragraph of this Section 5.3.8, the
consummation of the Closing shall not be deemed to be a waiver by the Parent or
the Surviving Corporation of any of their rights or remedies against the
Principal Shareholders hereunder for any breach of warranty, covenant or
agreement by the Company or the Principal Shareholders herein irrespective of
any knowledge of or investigation made by or on behalf of the Parent or Merger
Sub; provided, however, that if the Company shall disclose in writing to the
Parent prior to the Closing Date a specified breach of a specifically identified
representation, warranty, covenant or agreement of the Company or any Principal
Shareholder herein by the Company or any Principal Shareholder, and requests a
waiver thereof by the Parent, and the Parent shall waive any such specifically
identified breach in writing prior to the Closing Date, the Parent and the
Surviving Corporation, for themselves and for each Parent Indemnified Party (as
defined below) shall be deemed to have waived their respective rights and
remedies hereunder for, and the Principal Shareholders shall have no liability
with respect to, any such specifically identified breach, to the extent so
identified by the Company and so waived by the Parent.

Prior to the Closing, the Parent investigated and reviewed the books
and records relating to the operation of the Company, and inspected the Company
assets as it considered necessary to satisfy itself as to the condition of the
Company's business and properties. The Parent has notified the Company, the
Principal Shareholders and the Trustee of any material discrepancy, statement or
state of facts that was discovered up until the Closing which may affect or
render any of the Company's, the Principal Shareholders' or the Trustee's
representations or warranties contained herein untrue or misleading. To the
extent that the Parent has actual knowledge of any such discrepancy, statement
or state of facts (and the significance of such discrepancy, statement or state
of facts as such relates to the Company's, the Principal Shareholders' or the
Trustee's representations or warranties), and fails to notify the Company, the
Principal Shareholders, and the Trustee, the applicable representation or
warranty known to be untrue or misleading shall be unenforceable. In all other
respects, the representations and warranties of the Company, the Principal
Shareholders and the Trustee shall remain unaffected. Likewise, prior to the
Closing, the Company, the Principal Shareholders and the Trustee investigated
and reviewed the books and records relating to the operation of the Parent and
Merger Sub, and inspected the Parent's and Merger Sub's assets as they
considered necessary to satisfy them as to the condition of the Parents' and
Merger Sub's business and properties. The Company, the Principal Shareholders
and the Trustee have notified the Parent and Merger Sub of any material
discrepancy, statement or state of facts that was discovered up until the
Closing which may affect or render any of the Parent's or Merger Sub's
representations or warranties contained herein untrue or misleading. To the
extent that the Company, the Principal Shareholders or the Trustee have actual
knowledge of any such discrepancy, statement or state of facts (and the
significance of such discrepancy, statement or state of facts as such relates to
the Parent's or Merger Sub's representations or warranties), and fails to notify
the Parent and Merger Sub, the applicable representation or warranty known to be
untrue or misleading shall be unenforceable. In all other respects, the
representations and warranties of the Parent and Merger Sub shall remain
unaffected.

5.4 Deliveries by the Parent at the Closing. At the Closing,
simultaneously with the deliveries by the Principal Shareholders specified in
Section 5.3 above, and in addition to any other deliveries to be made by the
Parent and Merger Sub pursuant to any other transaction document at the Closing,
the Parent shall deliver or cause to be delivered to the Principal Shareholders
the following:

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5.4.1 Closing Certificates. The Parent and Merger Sub shall deliver
the certificates required pursuant to Sections 5.2.1, 5.2.2, 5.2.3 and 5.2.4.

5.4.2 Registration Rights Agreement. The Parent shall execute and
deliver to the Principal Shareholders a Registration Rights Agreement at the
Closing, effective as of the Effective Time, substantially in the form set forth
in Exhibit 5.3.5.

5.4.3 Opinion of Counsel for the Parent and Merger Sub. The Parent
shall deliver the favorable opinion of its legal counsel dated the Effective
Time, substantially in the form and to the effect set forth in Exhibits Exhibit
5.4.3.

5.4.4 Closing Merger Consideration. The Parent shall deliver the
Closing Merger Consideration to the Shareholders.

The consummation of the Closing shall not be deemed to be a waiver by the
Principal Shareholders of any of their rights or remedies hereunder for breach
of any warranty, covenant or agreement herein by the Parent or Merger Sub
irrespective of any knowledge of or investigation with respect thereto made by
or on behalf of any Principal Shareholder; provided, however, that if the Parent
shall disclose in writing to the Principal Shareholders prior to the Closing a
specified breach of a specifically identified representation, warranty, covenant
or agreement of the Parent or Merger Sub contained herein by the Parent or
Merger Sub, and requests a waiver thereof by the Company and the Principal
Shareholders, and the Company and the Principal Shareholders shall waive any
such specifically identified breach in writing prior to the Closing, the Company
and the Principal Shareholders shall be deemed to have waived their rights and
remedies hereunder for, and the Parent and Merger Sub shall have no liability or
obligation to the Principal Shareholders or the Company with respect to, any
such specifically identified breach, to the extent so identified by the Parent
and waived by the Company and the Principal Shareholders.

6. SURVIVAL, INDEMNIFICATIONS

6.1 Survival. The representations and warranties set forth in this
Agreement and the other documents, instruments and agreements contemplated
hereby shall survive after the date hereof to the extent provided herein. The
representations and warranties of the Principal Shareholders and the Company
herein and in the Shareholder Related Documents and the Company Related
Documents (as defined in Exhibit 2) other than those of the Principal
Shareholders and the Company in Sections 2.2, 2.3, 2.4 and in Sections 2, 3 and
12 of Exhibit 2 shall survive for a period of 24 months after the Closing Date
and the representations and warranties of the Principal Shareholders and the
Company contained in Sections 2.2, 2.3, 2.4 and in Sections 2, 3 and 12 of
Exhibit 2 shall survive for the maximum period permitted by applicable law. The
representations and warranties of the Parent herein and in the Parent Related
Documents, other than those in Sections 3.1.3, 3.1.4 and 3.1.8 shall survive for
a period of 24 months after the Closing Date and the representations and
warranties of the Parent contained in Sections 3.1.3, 3.1.4 and 3.1.8 shall
survive for the maximum period permitted by applicable law. The periods of
survival of the representations and warranties as stated above in this Section
6.1 are referred to herein as the "Survival Period." The liabilities of the
parties under their respective representations and warranties shall expire as of
the expiration of the applicable Survival Period and no claim for
indemnification may be made with respect to any breach of any representation or
warranty, the applicable Survival Period of which shall have expired, except to
the extent that written notice of such breach shall have been given to the party
against which such claim is asserted on

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<PAGE>

or before the date of such expiration. The covenants and agreements of the
parties herein (including but not limited to Exhibit 4.6) and in other documents
and instruments executed and delivered in connection with the closing of the
transactions contemplated hereby shall survive for the maximum period permitted
by law.

6.2 Indemnification.

6.2.1 Parent Indemnified Parties. Subject to the provisions of
Sections 6.1 and 6.3 hereof, the Principal Shareholders shall indemnify, save
and hold harmless the Parent, the Surviving Corporation, Merger Sub and any of
their assignees (including lenders) and all of their respective officers,
directors, employees, representatives, agents, advisors and consultants and all
of their respective heirs, legal representatives, successors and assigns
(collectively the "Parent Indemnified Parties") from and against any and all
damages, liabilities, losses, loss of value (including the value of adverse
effects on cash flow or earnings), claims, deficiencies, penalties, interest,
expenses, fines, assessments, charges and costs, including reasonable attorneys'
fees and court costs (collectively "Losses") arising from, out of or in any
manner connected with or based on:

(i) the breach of any covenant of the Principal Shareholders or the
Company or the failure by the Shareholders or the Company to perform any
obligation of the Principal Shareholders or the Company contained herein or
in any Company Related Document or Shareholder Related Document;

(ii) any inaccuracy in or breach of any representation or warranty
of the Principal Shareholders contained herein or in any Shareholder
Related Document;

(iii) any inaccuracy in or breach of any representation or warranty
of the Company contained herein or in any Company Related Document;

(iv) any factual misrepresentations provided by the Company or the
Principal Shareholders to the Parent for inclusion and which was included
in the Registration Statement;

(v) indemnification payments made by the Company or the Surviving
Corporation to the Company's present or former officers, directors,
employees, agents, consultants, advisors or representatives in respect of
actions taken or omitted to be taken prior to the Closing to the extent
such indemnification payments are not covered by insurance; and

(vi) any act, omission, occurrence, event, condition or circumstance
occurring or existing at any time on or before the Effective Time and
involving or related to the assets, properties, business or operations now
or previously owned or operated by the Company, including, but not limited
to, the Condominiums, and not (a) disclosed with reasonable specificity in
the Disclosure Schedule, (b) disclosed in the Company Financial Statements
(as defined in Exhibit 2) or in working capital or long term debt (in each
case as determined for purposes of calculating the Final Merger
Consideration) or (c) not otherwise permitted by this Agreement.

The foregoing indemnities shall not limit or otherwise adversely affect the
Principal Shareholders' Indemnified Parties' rights to indemnity for Losses
under Section 6.2.2.

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<PAGE>

6.2.2 Parent Indemnity. Subject to the provisions of Sections 6.1 and
6.3, the Parent shall indemnify, save and hold harmless the Principal
Shareholders and the Principal Shareholders' heirs, legal representatives,
successors and assigns from and against all Losses arising from, out of or in
any manner connected with or based on:

(i) any breach of any covenant of the Parent or Merger Sub or the
failure by the Parent or Merger Sub to perform any of its obligations
contained herein or in the Parent Related Documents;

(ii) any factual misrepresentation made by the Parent in the
Registration Statement (other than factual misrepresentations provided by
the Principal Shareholders or the Company);

(iii) any inaccuracy in or breach of any representation or warranty
of the Parent or Merger Sub contained herein or in the Parent Related
Documents; and

(iv) any act, omission, occurrence, event, condition or circumstance
occurring or existing at any time after (but not on or before) the
Effective Time and involving or relating to the assets, properties,
businesses or operations of the Company; provided, however, that this
clause (iv) shall not apply to any Losses to the extent that such Losses
result from any Shareholder's acts or omissions after the Effective Time as
an officer, director and/or employee of the Parent, the Surviving
Corporation and/or any other affiliate of the Parent.

The foregoing indemnities shall not limit or otherwise adversely affect the
Parent Indemnified Parties' rights of indemnity for Losses under Section 6.2.1.

6.3 Limitations.

6.3.1 Aggregate Liability. The aggregate liability of the Principal
Shareholders under Section 6.2.1 shall not exceed the cash amount equal to the
Total Consideration with the Parent Common Stock being valued at the IPO Price
to the Public for such purpose. The aggregate liability of the Parent under
Section 6.2.2 shall not exceed the cash amount equal to the Total Consideration
with the Parent Common Stock being valued at the IPO Price to the Public for
such purpose.

6.3.2 Threshold. Notwithstanding any other provision of this
Agreement, the Principal Shareholders shall not be liable to the Parent
Indemnified Parties under Section 6.2.1 regarding any claim(s), loss(es),
expense(s), obligation(s), or other liability(ies) that do not exceed $100,000
(the "Threshold"); provided, however, that when the aggregate amount of all such
claims, losses, expenses, obligations, and liabilities not exceeding the
Threshold reaches the Threshold, the Principal Shareholders or the Trustee, as
the case may be, shall thereafter be liable in full regarding all such claims,
losses, expenses, obligations, and liabilities (including the amount of the
Threshold); provided further that the Parent Indemnified Parties shall not seek
indemnification hereunder for insurance deductibles until the aggregate of such
deductibles exceeds the Threshold, in which case the Parent may only seek
indemnification for amounts in excess of the Threshold. In the event the Parent
procures insurance policies with deductibles that are in excess of deductibles
in force immediately prior to the Effective Time, for purposes of determining
any indemnification by the Principal Shareholders or the Trustee hereunder, the
deductible in force immediately prior to the Effective Time shall be used.

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6.4 Procedures for Indemnification.

6.4.1 Notice. The party (the "Indemnified Party") that may be
entitled to indemnity hereunder shall give prompt notice to any party obligated
to give indemnity hereunder (the "Indemnifying Party") of the assertion of any
claim, or the commencement of any suit, action or proceeding in respect of which
indemnity may be sought hereunder. Any failure on the part of any Indemnified
Party to give the notice described in this Section 6.4.1 shall relieve the
Indemnifying Party of its obligations under this Article 6 only to the extent
that such Indemnifying Party has been prejudiced by the lack of timely and
adequate notice (except that the Indemnifying Party shall not be liable for any
expenses incurred by the Indemnified Party during the period in which the
Indemnified Party failed to give such notice). Thereafter, the Indemnified Party
shall deliver to the Indemnifying Party, promptly (and in any event within 10
days thereof) after the Indemnified Party's receipt thereof, copies of all
notices and documents (including court papers) received by the Indemnified Party
relating to such claim, action, suit or proceeding.

6.4.2 Legal Defense. The Parent shall have the obligation to assume
the defense or settlement of any third-party claim, suit, action or proceeding
in respect of which indemnity may be sought hereunder, provided that (i) the
Principal Shareholders shall at all times have the right, at their option, to
participate fully therein, and (ii) if the Parent does not proceed diligently to
defend the third-party claim, suit, action or proceeding within 10 days after
receipt of notice of such third-party claim, suit, action or proceeding, the
Principal Shareholders shall have the right, but not the obligation, to
undertake the defense of any such third-party claim, suit, action or proceeding.

6.4.3 Settlement. The Indemnifying Party shall not be required to
indemnify the Indemnified Party with respect to any amounts paid in settlement
of any third-party suit, action, proceeding or investigation entered into
without the written consent of the Indemnifying Party; provided, however, that
if the Indemnified Party is a Parent Indemnified Party, such third-party suit,
action, proceeding or investigation may be settled without the consent of the
Indemnifying Party on 10 days' prior written notice to the Indemnifying Party if
such third-party suit, action, proceeding or investigation is then unreasonably
interfering with the business or operations of the Company or the Surviving
Corporation and the settlement is commercially reasonable under the
circumstances; and provided further, that if the Indemnifying Party gives 10
days' prior written notice to the Indemnified Party of a settlement offer which
the Indemnifying Party desires to accept and to pay all Losses with respect
thereto ("Settlement Notice") and the Indemnified Party fails or refuses to
consent to such settlement within 10 days after delivery of the Settlement
Notice to the Indemnified Party, and such settlement otherwise complies with the
provisions of this Section 6.4, the Indemnifying Party shall not be liable for
Losses arising from such third-party suit, action, proceeding or investigation
in excess of the amount proposed in such settlement offer. Notwithstanding the
foregoing, no Indemnifying Party will consent to the entry of any judgment or
enter into any settlement without the consent of the Indemnified Party, if such
judgment or settlement imposes any obligation or liability upon the Indemnified
Party other than the execution, delivery or approval thereof and customary
releases of claims with respect to the subject matter thereof.

6.4.4 Cooperation. The parties shall cooperate in defending any such
third-party suit, action, proceeding or investigation, and the defending party
shall have reasonable access to the books and records, and personnel in the
possession or control of the Indemnified Party that are pertinent to the
defense. The Indemnified Party may join the Indemnifying Party in any suit,
action, claim or proceeding brought by a third party, as to which any right of
indemnity created by this Agreement would or might apply, for the

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purpose of enforcing any right of the indemnity granted to such Indemnified
Party pursuant to this Agreement.

6.5 Subrogation. Each of the Parent, the Company and the Principal
Shareholders shall make a good faith attempt (which shall not be deemed to
include an obligation to commence any litigation) to seek indemnification from
any third parties, including insurers, who may be liable upon any claims made
against the Parent, the Company or the Principal Shareholders and for which the
other party would be liable under this Agreement. To the extent a party
indemnifies the other party for claims upon which third parties, including
insurers, may be liable, the indemnified party shall, to the extent permissible,
subrogate to the indemnifying party its rights with respect to such claims.

7. TERMINATION

7.1 Grounds for Termination. This Agreement may be terminated at any time
prior to the Closing Date:

7.1.1 Mutual Consent. By the written agreement of the Company and the
Parent; or

7.1.2 Optional By the Company. By the Company by written notice to
the Parent, if the Closing shall have failed to occur by 5:00 p.m. Houston,
Texas time on December 31, 1997, but only if neither the Company nor any
Principal Shareholder has materially breached this Agreement or has failed to
perform any of their respective obligations under this Agreement;

7.1.3 Optional By the Parent. By the Parent, by written notice to the
Company, if the Closing shall have failed to occur by 5:00 p.m. Houston, Texas
time on December 31, 1997, but only if neither the Parent nor Merger Sub has
materially breached this Agreement or has failed to perform any of its
obligations under this Agreement;

7.1.4 Breach By the Parent or Merger Sub. By the Company, by written
notice to the Parent, if either the Parent or Merger Sub has materially breached
this Agreement or materially failed to perform any of its obligations under this
Agreement; or

7.1.5 Breach by the Company or any Principal Shareholder. By the
Parent, by written notice to the Company, if the Company or any Principal
Shareholder has materially breached this Agreement or has materially failed to
perform any of their respective obligations under this Agreement.

7.2 Effect of Termination. If this Agreement is terminated as permitted
under Section 7.1, such termination shall be without liability of any party to
any other party, except that such termination shall be without prejudice to any
and all remedies the parties may have against each other for breach of this
Agreement.

8. MISCELLANEOUS

8.1 Notice. Any notice, delivery or communication required or permitted
to be given under this Agreement shall be in writing, and shall be mailed,
postage prepaid, or delivered, to the addresses given below, or sent by telecopy
to the telecopy numbers set forth below, as follows:

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To the Company (prior to the Effective Time) or the Principal Shareholders:

MacDonald-Miller Industries, Inc.
7717 Detroit S.W.
Seattle, Washington 98106-1903
Attention: Mr. Fredric J. Sigmund
Telecopy: (206) 768-4181

With a copy to:

Mr. George S. Holzapfel
Lasher Holzapfel Sperry & Ebberson, P.L.L.C.
2600 Two Union Square
601 Union Street
Seattle, Washington 98101-4000
Telecopy: (206) 340-2563

To the Parent or Merger Sub or the Surviving Corporation:

Group Maintenance America Corp.
1800 West Loop South, Suite 1375
Houston, Texas 77027
Attn: President
Telecopy: (713) 626-4766

or other such address as shall be furnished in writing by any such party to the
other parties, and such notice shall be effective and be deemed to have been
given as of the date actually received.

To the extent any notice provision in any other agreement, instrument or
document required to be executed or executed by the parties in connection with
the transactions contemplated herein contains a notice provision which is
different from the notice provision contained in this Section 8.1 with respect
to matters arising under such other agreement, instrument or document, the
notice provision in such other agreement, instrument or document shall control.

8.2 Further Documents. The Principal Shareholders shall, at any time and
from time to time after the date hereof, upon request by the Parent and without
further consideration, execute and deliver such instruments or other documents
and take such further action as may be reasonably required in order to perfect
any other undertaking made by the Principal Shareholders hereunder.

8.3 Assignability. The Principal Shareholders shall not assign this
Agreement in whole or in part without the prior written consent of the Parent,
except by the operation of law. The Parent shall not assign this Agreement in
whole or in part without the prior written consent of the Principal
Shareholders, which consent shall not be unreasonably withheld, except by the
operation of law. After the Effective Time, the Surviving Corporation may
assign its rights under this Agreement, the Company Related Documents and the
Shareholder Related Documents without the consent of any Shareholder.

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<PAGE>

8.4 Exhibits and Schedules. The Exhibits and Schedules (and any
appendices thereto) referred to in this Agreement are and shall be incorporated
herein and made a part hereof.

8.5 Sections and Articles. Unless the context otherwise requires, all
Sections, Articles and Exhibits referred to herein are, respectively, sections
and articles of, and exhibits to, this Agreement and all Schedules referred to
herein are schedules constituting a part of the Disclosure Schedule.

8.6 Entire Agreement. This Agreement constitutes the full understanding
of the parties, a complete allocation of risks between them and a complete and
exclusive statement of the terms and conditions of their agreement relating to
the subject matter hereof and supersedes any and all prior agreements, whether
written or oral, that may exist between the parties with respect thereto.
Except as otherwise specifically provided in this Agreement, no conditions,
usage of trade, course of dealing or performance, understanding or agreement
purporting to modify, vary, explain or supplement the terms or conditions of
this Agreement shall be binding unless hereafter made in writing and signed by
the party to be bound, and no modification shall be effected by the
acknowledgment or acceptance of documents containing terms or conditions at
variance with or in addition to those set forth in this Agreement. No waiver by
any party with respect to any breach or default or of any right or remedy and no
course of dealing shall be deemed to constitute a continuing waiver of any other
breach or default or of any other right or remedy, unless such waiver be
expressed in writing signed by the party to be bound. Failure of a party to
exercise any right shall not be deemed a waiver of such right or rights in the
future.

8.7 Headings. Headings as to the contents of particular articles and
sections are for convenience only and are in no way to be construed as part of
this Agreement or as a limitation of the scope of the particular articles or
sections to which they refer.

8.8 CONTROLLING LAW. THE VALIDITY, INTERPRETATION AND PERFORMANCE OF THIS
AGREEMENT AND ANY DISPUTE CONNECTED HEREWITH SHALL BE GOVERNED AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS EXCEPT TO THE EXTENT THE
APPLICABLE CORPORATE LAW MANDATORILY APPLIES WITH RESPECT THERETO.

8.9 Public Announcements. After the Effective Time, no Principal
Shareholder shall make any press release, public announcement, or public
confirmation or disclose any other information regarding this Agreement or the
contents hereof.

8.10 No Third Party Beneficiaries. Except as set forth in Article 6, no
person or entity not a party to this Agreement shall have rights under this
Agreement as a third party beneficiary or otherwise.

8.11 Amendments and Waivers. This Agreement may be amended by the Parent,
Merger Sub and the Company, by action taken by their Boards of Directors to the
extent permitted by applicable law; provided, however, that no such amendment
shall (i) alter or change any provision of this Agreement, the alteration or
change of which must be adopted by the holders of capital stock of the Company
under the certificate or articles of incorporation of the Company or the
Applicable Corporate Law, or (ii) alter or change this Section 8.11, unless each
such alteration or change is adopted by the holders of shares of capital stock
of the Company as may be required by the certificate or articles of
incorporation of the Company or the Applicable Corporate Law. Prior to the
Effective Time, all amendments to this Agreement must be by

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an instrument in writing signed on behalf of the Parent, Merger Sub, the Company
and the Principal Shareholders. After the Effective Time, all amendments to this
Agreement must be by an instrument in writing signed on behalf of the Parent and
the Principal Shareholders. Any term or provision of this Agreement (other than
the requirements for shareholder approvals) may be waived in writing at any time
by the party which is, or whose shareholders are, entitled to the benefits
thereof.

8.12 No Employee Rights. Except as set forth in Section 5.3.3, nothing
herein expressed or implied shall confer upon any employee of the Company, any
other employee or legal representatives or beneficiaries of any thereof any
rights or remedies, including any right to employment or continued employment
for any specified period, of any nature or kind whatsoever under or by reason of
this Agreement, or shall cause the employment status of any employee to be other
than terminable at will.

8.13 Non-Recourse. No recourse for the payment of any amounts due
hereunder or for any claim based on this Agreement or the transactions
contemplated hereby or otherwise in respect thereof, and no recourse under or
upon any obligation, covenant or agreement of the Parent in this Agreement shall
be had against any incorporator, organizer, promoter, shareholder, officer,
director, employee or representative as such (other than the Shareholders as set
forth herein), past, present or future, of the Parent or of any successor
corporation, whether by virtue of any constitution, statute or rule of law, or
by enforcement of any assessment or penalty or otherwise; it being expressly
understood that all such liability is hereby expressly waived and released as a
condition of, and as a consideration for, the execution of this Agreement;
provided, however, that the foregoing provisions of this Section 8.13 shall not
apply to acts or omissions that constitute fraud, gross negligence or bad faith.

8.14 When Effective. This Agreement shall become effective only upon the
execution and delivery of one or more counterparts of this Agreement by each of
the Parent, Merger Sub, the Company and the Principal Shareholders.

8.15 Takeover Statutes. If any "fair price," "moratorium," "control share
acquisition" or other form of anti-takeover statute or regulation shall become
applicable to the transactions contemplated hereby, the Parent and the Company
and their respective members of their Boards of Directors shall grant such
approvals and take such actions as are necessary so that the transactions
contemplated by this Agreement may be consummated as promptly as practicable on
the terms contemplated herein and otherwise act to eliminate or minimize the
effects of such statute or regulation on the transactions contemplated herein.

8.16 Number and Gender of Words. Whenever herein the singular number is
used, the same shall include the plural where appropriate and words of any
gender shall include each other gender where appropriate.

8.17 Invalid Provisions. If any provision of this Agreement is held to be
illegal, invalid, or unenforceable under present or future laws, such provisions
shall be fully severable as if such invalid or unenforceable provisions had
never comprised a part of the Agreement; and the remaining provisions of the
Agreement shall remain in full force and effect and shall not be affected by the
illegal, invalid or unenforceable provision or by its severance from this
Agreement. Furthermore, in lieu of such illegal, invalid or unenforceable
provision, there shall be automatically as a part of this Agreement, a provision
as similar in terms to such illegal, invalid or unenforceable provision as may
be possible and be legal, valid and enforceable.

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<PAGE>

8.18 Multiple Counterparts. This Agreement may be executed in a number of
identical counterparts. If so executed, each of such counterparts is to be
deemed an original for all purposes and all such counterparts shall,
collectively, constitute one agreement, but, in making proof of this Agreement,
it shall not be necessary to produce or account for more than one such
counterpart. For purposes of this Agreement and any Exhibits hereto, facsimile
signatures shall be deemed to be original signatures. In addition, if any of
the parties sign facsimile copies of this Agreement or any of the Exhibits, such
copies shall be deemed originals.

8.19 No Rule of Construction. All of the parties hereto have been
represented by counsel in the negotiations and preparation of this Agreement;
therefore, this Agreement will be deemed to be drafted by each of the parties
hereto, and no rule of construction will be invoked respecting the authorship of
this Agreement.

8.20 Expenses. Each of the parties shall bear all of their own expenses in
connection with the negotiation and closing of this Agreement and the
transactions contemplated hereby; provided that the Company may pay the costs of
any broker, legal counsel, accountants, Company Accountants, the Accountants (up
to $50,000) or other advisors engaged by the Shareholders (to the extent, and
only to the extent, that any such payment will not jeopardize the qualification
of the Merger as a reorganization within the meaning of Section 368(a) of the
Code); and provided further that all fees, costs and expenses (limited to
$50,000 for fees, costs and expenses of the Accountants) incurred or payable by
the Company, but not yet paid, in connection with the negotiation and closing of
this Agreement and the transactions contemplated hereby shall be included in
current liabilities for purposes of determining Working Capital.

IN WITNESS WHEREOF, this Agreement has been duly executed and delivered on
the date first hereinabove written.

PARENT:

GROUP MAINTENANCE AMERICA CORP.

/s/ J. PATRICK MILLINOR, JR.
-----------------------------
J. Patrick Millinor, Jr., President

MERGER SUB:

MACDONALD-MILLER ACQUISITION CORP.

By: /s/ J. PATRICK MILLINOR, JR.
-----------------------------
President

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<PAGE>

PRINCIPAL SHAREHOLDERS:

/s/ FREDRIC J. SIGMUND
-----------------------
Fredric J. Sigmund

/s/ STEVEN C. LOVELY
---------------------
Steven C. Lovely

/s/ GARY S. KUHLMAN
-------------------
Gary S. Kuhlman

/s/ JAMES A. MACDONALD
----------------------
James A. MacDonald

/s/ B. JOEL SMITH
-----------------
B. Joel Smith

/s/ CHARLES H. ORTON
--------------------
Charles H. Orton

TRUSTEE:

/s/ FREDRIC J. SIGMUND
----------------------
Fredric J. Sigmund

/s/ STEVEN C. LOVELY
--------------------
Steven C. Lovely

/s/ GARY S. KUHLMAN
-------------------
Gary S. Kuhlman

/s/ JAMES A. MACDONALD
----------------------
James A. MacDonald

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<PAGE>

/S/ B. JOEL SMITH
-----------------
B. Joel Smith

/s/ CHARLES H. ORTON
--------------------
Charles H. Orton

COMPANY:

MACDONALD-MILLER INDUSTRIES, INC.

By: /s/ FREDRIC J. SIGMUND
----------------------
Name: Fredric J. Sigmund
Title: Chief Executive Officer

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<PAGE>

ANNEX B

[LETTERHEAD OF BUSINESS ADVISORY SERVICES APPEARS HERE]

August 19, 1997

Board of Directors
MacDonald-Miller Industries, Inc.
7737 Detroit S.W.
Seattle, WA 98106-1903

Dear Members of the Board:

You have requested our opinion as to the fairness, from a financial point of
view, to the holders of common stock, no par value ("Company Shares") of
MacDonald-Miller Industries, Inc., a Washington corporation (the "Company") of
the consideration to be received in a series of transactions (the
"Transactions") pursuant to the Agreement and Plan of Merger ("Merger
Agreement") by and among Group Maintenance America Corp., a Texas corporation
("GroupMAC"), MacDonald-Miller Acquisition Corp., a Washington corporation, the
Company, The Principal Holders of the Outstanding Capital Stock of
MacDonald-Miller Industries, Inc., and the Trustee of the MacDonald-Miller
Industries, Inc. Employee Stock Ownership Plan and Trust.

The terms of the Merger Agreement provide, among other things, that
contemporaneously with and contingent upon the initial public offering of the
common stock, par value $0.001 per share, ("GroupMAC Shares") of GroupMAC, the
Company will merge with and into MacDonald-Miller Acquisition Corp. and the
Company Shares will convert into the right to receive cash consideration and a
number of GroupMAC Shares. The sum of the cash consideration and GroupMAC Shares
("Total Consideration") will equate to $16,000,000 less, as defined in the
Merger Agreement, (i) the sum of the Working Capital Deduction, if any, the
Excess Expense Level Deduction, if any, and Long-Term Debt, if any, plus (ii)
the Working Capital Addition, if any.

The Total Consideration will consist of 40% cash and 60% GroupMAC Shares. The
number of GroupMAC Shares equating to 60% of the Total Consideration will be
determined based upon the per share offering price to the public in the initial
public offering of GroupMAC Shares. In addition, on or before April 30, 1998,
holders of Company Shares may receive additional contingent consideration
("Contingent Consideration") based upon the achievement of certain financial
benchmarks as defined in the Merger Agreement. The Contingent Consideration will
be apportioned between cash and GroupMAC Shares in the same ratio as the Total
Consideration.

<PAGE>

MacDonald-Miller Industries, Inc.
August 19, 1997
Page 2

On or before the initial public offering of GroupMAC Shares, the net assets of
MacDonald-Miller Residential, a division of the Company, will be contributed to
MacDonald-Miller Residential, Inc., a newly formed, wholly owned Washington
corporation ("Residential"). The common stock of Residential will then be
distributed to holders of Company Shares or sold at fair market value.

In arriving at our opinion, consideration has been given to the history and
nature of the business, the economic outlook in general, the industry outlook,
the historical sales and earnings trends, the outlook for future sales and
earnings, the book value of the stock, the financial condition of the business,
prior transactions in the Company's stock and prices at which the public
companies in the same or similar industries are trading for, both on a control
and minority interest basis. Additionally, we have:

(i) Reviewed the Company's consolidated audited financial statements for
calendar years ending December 31, 1992 through 1996;

(ii) Reviewed a draft of the Company's audited consolidated balance sheets,
excluding Residential, as of December 31, 1995, 1996 and June 30, 1997
and the related consolidated statements of income for the years ended
December 31, 1994 through 1996 and the six month period ended June 30,
1997;

(iii) Reviewed the letter of intent dated June 3, 1997 between GroupMAC and the
Company;

(iv) Reviewed the terms and conditions of the draft Merger Agreement dated
August 11, 1997 and related merger documents in the form furnished to us;

(v) Reviewed a draft of the GroupMAC S-1 Registration Statement dated August
12, 1997;

(vi) Reviewed certain financial forecasts and other data provided to us by the
Company relating to its business in the form furnished to us;

(vii) Conducted discussions with senior management of the Company with respect
to the business and prospects of the Company;

<PAGE>

MacDonald-Miller Industries, Inc.
August 19, 1997
Page 3

(viii) Reviewed public information with respect to certain other companies in
lines of business which we believe to be generally comparable in whole
or in part to the business of the Company; and

(ix) Conducted such other financial studies, analyses, and investigations as
we deemed appropriate.

We have relied upon the accuracy and completeness of the financial and other
information and representations that have been received by us from the Company
or its representatives. We have not assumed any responsibility for independent
verification of such information. With respect to financial forecasts, we have
assumed that they have been reasonably prepared on bases reflecting the best
currently available estimates and judgment of the management of the Company
relative to the expected future financial performance of the Company. We assume
no responsibility for and express no view as to such forecasts or the
assumptions on which they were based.

Our opinion is necessarily based on the economic, market, and other
conditions in effect, the information made available to us and management's
representations to us as of the date hereof. You have not requested that we
undertake any investigation of alternative transactions which may be available
to the Company.

We have provided financial advice to the Company's Board of Directors in
connection with the Transactions and will receive a fee for our services.
However, no portion of our fee is contingent upon the consummation of the
Transactions. In the past, we have provided valuation services to the
MacDonald-Miller Industries, Inc. Employee Stock Ownership Plan and Trust and
received fees for the rendering of these services.

In arriving at our opinion, we have assumed that the actual Merger Agreement
entered into among the parties thereto will be identical in all material
respects to the draft Merger Agreement provided to us.

It is understood that this opinion is solely for the benefit and use of the
Company's Board of Directors in its consideration of the Transactions and may
not be relied upon by any other person, used for any other purpose, or
reproduced or disseminated for any purpose without our prior written consent.
However, we expressly consent to the inclusion of this opinion in its entirety
as an exhibit to the Company's proxy statement to holders of Company Shares and
in Form S-4 distributed in connection with the Transactions.

<PAGE>

MacDonald-Miller Industries, Inc.
August 19, 1997
Page 4

Based upon the foregoing, it is our opinion that as of the date hereof, the
consideration to be received by holders of Company Shares pursuant to the Merger
Agreement is fair to such holders from a financial point of view.

BUSINESS ADVISORY SERVICES, INC.

/s/ STEVEN E. HORSMAN
- --------------------------------
Steven E. Horsman, CFA, ASA

/s/ JACK B. SPARKS, JR.
- --------------------------------
Jack B. Sparks, Jr., ASA, CBA

/s/ LINDON A. GREENE
- --------------------------------
Lindon A. Greene

<PAGE>

ANNEX C

CHAPTER 23B.13 OF THE WASHINGTON BUSINESS CORPORATION ACT

DISSENTERS' RIGHTS

23B.13.010. DEFINITIONS--As used in this chapter:
(1) "Corporation" means the issuer of the shares held by a dissenter before
the corporate action, or the surviving or acquiring corporation by merger or
share exchange of that issuer.
(2) "Dissenter" means a shareholder who is entitled to dissent from
corporate action under RCW 23B.13.020 and who exercises that right when and in
the manner required by RCW 23B.13.200 through 23B.13.280.
(3) "Fair value," with respect to a dissenter's shares, means the value of
the shares immediately before the effective date of the corporate action to
which the dissenter objects, excluding any appreciation or depreciation in
anticipation of the corporate action unless exclusion would be inequitable.
(4) "Interest" means interest from the effective date of the corporate
action until the date of payment, at the average rate currently paid by the
corporation on its principal bank loans or, if none, at a rate that is fair and
equitable under all the circumstances.
(5) "Record shareholder" means the person in whose name shares are
registered in the records of a corporation or the beneficial owner of shares to
the extent of the rights granted by a nominee certificate on file with a
corporation.
(6) "Beneficial shareholder" means the person who is a beneficial owner of
shares held in a voting trust or by a nominee as the record shareholder.
(7) "Shareholder" means the record shareholder or the beneficial
shareholder.

23B.13.020. Right to dissent--(1) A shareholder is entitled to dissent
from, and obtain payment of the fair value of the shareholder's shares in the
event of, any of the following corporate actions:
(a) Consummation of a plan of merger to which the corporation is a party
(i) if shareholder approval is required for the merger by RCW 23B.11.030,
23B.11.080, or the articles of incorporation and the shareholder is entitled to
vote on the merger, or (ii) if the corporation is a subsidiary that is
merged with its parent under RCW 23B.11.040;
(b) Consummation of a plan of share exchange to which the corporation is a
party as the corporation whose shares will be acquired, if the shareholder is
entitled to vote on the plan;
(c) Consummation of a sale or exchange of all, or substantially all, of the
property of the corporation other than in the usual and regular course of
business, if the shareholder is entitled to vote on the sale or exchange,
including a sale in dissolution, but not including a sale pursuant to court
order or a sale for cash pursuant to a plan by which all or substantially all of
the net proceeds of the sale will be distributed to the shareholders within one
year after the date of sale;
<PAGE>

(d) An amendment of the articles of incorporation that materially reduces
the number of shares owned by the shareholder to a fraction of a share if the
fractional share so created is to be acquired for cash under RCW 23B.06.040; or
(e) Any corporate action taken pursuant to a shareholder vote to the extent
the articles of incorporation, bylaws, or a resolution of the board of directors
provides that voting or nonvoting shareholders are entitled to dissent and
obtain payment for their shares.
(2) A shareholder entitled to dissent and obtain payment for the
shareholder's shares under this chapter may not challenge the corporate action
creating the shareholder's entitlement unless the action fails to comply with
the procedural requirements imposed by this title, RCW 25.10.900 through
25.10.955, the articles of incorporation, or the bylaws, or is fraudulent with
respect to the shareholder or the corporation.
(3) The right of a dissenting shareholder to obtain payment of the fair
value of the shareholder's shares shall terminate upon the occurrence of any one
of the following events:
(a) The proposed corporate action is abandoned or rescinded;
(b) A court having jurisdiction permanently enjoins or sets aside the
corporate action; or
(c) The shareholder's demand for payment is withdrawn with the written
consent of the corporation.

23B.13.030. DISSENT BY NOMINEES AND BENEFICIAL OWNERS--(1) A record
shareholder may assert dissenters' rights as to fewer than all the shares
registered in the shareholder's name only if the shareholder dissents with
respect to all shares beneficially owned by any one person and notifies the
corporation in writing of the name and address of each person on whose behalf
the shareholder asserts dissenters' rights. The rights of a partial dissenter
under this subsection are determined as if the shares as to which the dissenter
dissents and the dissenter's other shares were registered in the names of
different shareholders.
(2) A beneficial shareholder may assert dissenters' rights as to shares
held on the beneficial shareholder's behalf only if:
(a) The beneficial shareholder submits to the corporation the record
shareholder's written consent to the dissent not later than the time the
beneficial shareholder asserts dissenters' rights; and
(b) The beneficial shareholder does so with respect to all shares of which
such shareholder is the beneficial shareholder or over which such shareholder
has power to direct the vote.

23B.13.200. NOTICE OF DISSENTERS' RIGHTS--(1) If proposed corporate action
creating dissenters' rights under RCW 23B.13.020 is submitted to a vote at a
shareholders' meeting, the meeting notice must state that shareholders are or
may be entitled to assert dissenters' rights under this chapter and be
accompanied by a copy of this chapter.
(2) If corporate action creating dissenters' rights under RCW 23B.13.020 is
taken without a vote of shareholders, the corporation, within ten days after
[the] effective date of such corporate action, shall notify in writing all
shareholders entitled to assert dissenters' rights that the action was taken and
send them the dissenters' notice described in RCW 23B.13.220.

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<PAGE>

23B.13.210. NOTICE OF INTENT TO DEMAND PAYMENT--(1) If proposed corporate
action creating dissenters' rights under RCW 23B.13.020 is submitted to a vote
at a shareholders' meeting, a shareholder who wishes to assert dissenters'
rights must (a) deliver to the corporation before the vote is taken written
notice of the shareholder's intent to demand payment for the shareholder's
shares if the proposed action is effected, and (b) not vote such shares in favor
of the proposed action.
(2) A shareholder who does not satisfy the requirements of subsection (1)
of this section is not entitled to payment for the shareholder's shares under
this chapter.

23B.13.220. DISSENTERS' NOTICE--(1) If proposed corporate action creating
dissenters' rights under RCW 23B.13.020 is authorized at a shareholders'
meeting, the corporation shall deliver a written dissenters' notice to all
shareholders who satisfied the requirements of RCW 23B.13.210.
(2) The dissenters' notice must be sent within ten days after the effective
date of the corporate action, and must:
(a) State where the payment demand must be sent and where and when
certificates for certificated shares must be deposited;
(b) Inform holders of uncertificated shares to what extent transfer of the
shares will be restricted after the payment demand is received;
(c) Supply a form for demanding payment that includes the date of the first
announcement to news media or to shareholders of the terms of the proposed
corporate action and requires that the person asserting dissenters' rights
certify whether or not the person acquired beneficial ownership of the shares
before that date;
(d) Set a date by which the corporation must receive the payment demand,
which date may not be fewer than thirty nor more than sixty days after the date
the notice in subsection (1) of this section is delivered; and
(e) Be accompanied by a copy of this chapter.

23B.13.230. DUTY TO DEMAND PAYMENT--(1) A shareholder sent a dissenters'
notice described in RCW 23B.13.220 must demand payment, certify whether the
shareholder acquired beneficial ownership of the shares before the date required
to be set forth in the dissenters' notice pursuant to RCW 23B.13.220(2)(c), and
deposit the shareholder's certificates in accordance with the terms of the
notice.
(2) The shareholder who demands payment and deposits the shareholder's
share certificates under subsection (1) of this section retains all other rights
of a shareholder until the proposed corporate action is effected.
(3) A shareholder who does not demand payment or deposit the shareholder's
share certificates where required, each by the date set in the dissenters'
notice, is not entitled to payment for the shareholder's shares under this
chapter.

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<PAGE>

23B.13.240. SHARE RESTRICTIONS--(1) The corporation may restrict the
transfer of uncertificated shares from the date the demand for their payment is
received until the proposed corporate action is effected or the restriction is
released under RCW 23B.13.260.
(2) The person for whom dissenters' rights are asserted as to
uncertificated shares retains all other rights of a shareholder until the
effective date of the proposed corporate action.

23B.13.250. PAYMENT--(1) Except as provided in RCW 23B.13.270, within
thirty days of the later of the effective date of the proposed corporate action,
or the date the payment demand is received, the corporation shall pay each
dissenter who complied with RCW 23B.13.230 the amount the corporation estimates
to be the fair value of the shareholder's shares, plus accrued interest.
(2) The payment must be accompanied by:
(a) The corporation's balance sheet as of the end of a fiscal year ending
not more than sixteen months before the date of payment, an income statement for
that year, a statement of changes in shareholders' equity for that year, and the
latest available interim financial statements, if any;
(b) An explanation of how the corporation estimated the fair value of the
shares;
(c) An explanation of how the interest was calculated;
(d) A statement of the dissenter's right to demand payment under RCW
23B.13.280; and
(e) A copy of this chapter.

23B.13.260. FAILURE TO TAKE ACTION--(1) If the corporation does not effect
the proposed action within sixty days after the date set for demanding payment
and depositing share certificates, the corporation shall return the deposited
certificates and release any transfer restrictions imposed on uncertificated
shares.
(2) If after returning deposited certificates and releasing transfer
restrictions, the corporation wishes to undertake the proposed action, it must
send a new dissenters' notice under RCW 23B.13.220 and repeat the payment demand
procedure.

23B.13.270. AFTER-ACQUIRED SHARES--(1) A corporation may elect to withhold
payment required by RCW 23B.13.250 from a dissenter unless the dissenter was the
beneficial owner of the shares before the date set forth in the dissenters'
notice as the date of the first announcement to news media or to shareholders of
the terms of the proposed corporate action.
(2) To the extent the corporation elects to withhold payment under
subsection (1) of this section, after taking the proposed corporate action, it
shall estimate the fair value of the shares, plus accrued interest, and shall
pay this amount to each dissenter who agrees to accept it in full satisfaction
of the dissenter's demand. The corporation shall send with its offer an
explanation of how it estimated the fair value of the shares, an explanation of
how the interest was calculated, and a statement of the dissenter's right to
demand payment under RCW 23B.13.280.

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<PAGE>

23B.13.280. PROCEDURE IF SHAREHOLDER DISSATISFIED WITH PAYMENT OR OFFER--
(1) A dissenter may notify the corporation in writing of the dissenter's own
estimate of the fair value of the dissenter's shares and amount of interest due,
and demand payment of the dissenter's estimate, less any payment under RCW
23B.13.250, or reject the corporation's offer under RCW 23B.13.270 and demand
payment of the dissenter's estimate of the fair value of the dissenter's shares
and interest due, if:
(a) The dissenter believes that the amount paid under RCW 23B.13.250 or
offered under RCW 23B.13.270 is less than the fair value of the dissenter's
shares or that the interest due is incorrectly calculated;
(b) The corporation fails to make payment under RCW 23B.13.250 within sixty
days after the date set for demanding payment; or
(c) The corporation does not effect the proposed action and does not return
the deposited certificates or release the transfer restrictions imposed on
uncertificated shares within sixty days after the date set for demanding
payment.
(2) A dissenter waives the right to demand payment under this section
unless the dissenter notifies the corporation of the dissenter's demand in
writing under subsection (1) of this section within thirty days after the
corporation made or offered payment for the dissenter's shares.

23B.13.300. COURT ACTION--(1) If a demand for payment under RCW 23B.13.280
remains unsettled, the corporation shall commence a proceeding within sixty days
after receiving the payment demand and petition the court to determine the fair
value of the shares and accrued interest. If the corporation does not commence
the proceeding within the sixty-day period, it shall pay each dissenter whose
demand remains unsettled the amount demanded.
(2) The corporation shall commence the proceeding in the superior court of
the county where a corporation's principal office, or, if none in this state,
its registered office, is located. If the corporation is a foreign corporation
without a registered office in this state, it shall commence the proceeding in
the county in this state where the registered office of the domestic corporation
merged with or whose shares were acquired by the foreign corporation was
located.
(3) The corporation shall make all dissenters, whether or not residents of
this state, whose demands remain unsettled, parties to the proceeding as in an
action against their shares and all parties must be served with a copy of the
petition. Nonresidents may be served by registered or certified mail or by
publication as provided by law.
(4) The corporation may join as a party to the proceeding any shareholder
who claims to be a dissenter but who has not, in the opinion of the corporation,
complied with the provisions of this chapter. If the court determines that such
shareholder has not complied with the provisions of this chapter, the
shareholder shall be dismissed as a party.
(5) The jurisdiction of the court in which the proceeding is commenced
under subsection (2) of this section is plenary and exclusive. The court may
appoint one or more persons as appraisers to receive evidence and recommend
decision on the question of fair value. The appraisers have the

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<PAGE>

powers described in the order appointing them, or in any amendment to it. The
dissenters are entitled to the same discovery rights as parties in other civil
proceedings.
(6) Each dissenter made a party to the proceeding is entitled to judgment
(a) for the amount, if any, by which the court finds the fair value of the
dissenter's shares, plus interest, exceeds the amount paid by the corporation,
or (b) for the fair value, plus accrued interest, of the dissenter's after-
acquired shares for which the corporation elected to withhold payment under RCW
23B.13.270.

23B.13.310. COURT COSTS AND COUNSEL FEES--(1) The court in a proceeding
commenced under RCW 23B.13.300 shall determine all costs of the proceeding,
including the reasonable compensation and expenses of appraisers appointed by
the court. The court shall assess the costs against the corporation, except
that the court may assess the costs against all or some of the dissenters, in
amounts the court finds equitable, to the extent the court finds the dissenters
acted arbitrarily, vexatiously, or not in good faith in demanding payment under
RCW 23B.13.280.
(2) The court may also assess the fees and expenses of counsel and experts
for the respective parties, in amounts the court finds equitable:
(a) Against the corporation and in favor of any or all dissenters if the
court finds the corporation did not substantially comply with the requirements
of RCW 23B.13.200 through 23B.13.280; or
(b) Against either the corporation or a dissenter, in favor of any other
party, if the court finds that the party against whom the fees and expenses are
assessed acted arbitrarily, vexatiously, or not in good faith with respect to
the rights provided by chapter 23B.13 RCW.
(3) If the court finds that the services of counsel for any dissenter were
of substantial benefit to other dissenters similarly situated, and that the fees
for those services should not be assessed against the corporation, the court may
award to these counsel reasonable fees to be paid out of the amounts awarded the
dissenters who were benefited.

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