<PAGE>
----------------------------
OMB APPROVAL
----------------------------
UNITED STATES OMB Number: 3235-0145
SECURITIES AND EXCHANGE COMMISSION Expires: December 31, 1997
Washington, D.C. 20549 Estimated average burden
hours per response.... 14.90
----------------------------
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 1 ) *
------------
EMCOR GROUP, INC.
- --------------------------------------------------------------------------------
(Name of Issuer)
COMMON STOCK
- --------------------------------------------------------------------------------
(Title of Class of Securities)
29084Q100
------------------------------------
(CUSIP Number)
Check the following box if a fee is being paid with this statement. / / (A fee
is not required only if the filing person: (1) has a previous statement on file
reporting beneficial ownership of more than five percent of the class of
securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7).
* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the ACT
but shall be subject to all other provisions of the Act (however, see the
Notes).
<PAGE>
SEC 1745 (2-95)
- --------------------------------------------------------------------------------
CUSIP No. 29084Q100 13G Page 2 of 3 Pages
--------------- ---- ---
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
WEISS, PECK & GREER, L.L.C.
- --------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
2 (a) / /
(b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
DELAWARE
- --------------------------------------------------------------------------------
SOLE VOTING POWER
5
-0-
NUMBER OF ---------------------------------------------------------
SHARES SHARED VOTING POWER
BENEFICIALLY 6
OWNED BY 207,900
EACH ---------------------------------------------------------
REPORTING SOLE DISPOSITIVE POWER
PERSON 7
WITH -0-
---------------------------------------------------------
SHARED DISPOSITIVE POWER
8
207,900
- --------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
207,900
- --------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
10 X
- --------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11
2.17
- --------------------------------------------------------------------------------
TYPE OF REPORTING PERSON *
12
BD, IA
- --------------------------------------------------------------------------------
<PAGE>
Cusip No. 29084Q100 13G Page 3 of 3
Item 5. Ownership of Five Percent or Less of a Class:
--------------------------------------------
If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than five
percent of the class of securities, check the following /X/.
Item 10. Certification:
-------------
By signing below, Richard S. Pollack, General Counsel of Weiss, Peck & Greer,
L.L.C. ("WPG") certifies that, to the best of his knowledge and belief,
securities referred to above as being held or owned beneficially by WPG were
acquired in the ordinary course of business and were not acquired for the
purpose of and do not have the effect of changing or influencing the control of
the issuer of such securities and were not acquired in connection with or as a
participant in any transaction having such purpose or effect.
SIGNATURE
---------
After reasonable inquiry and to the best of his knowledge and belief, the
undersigned certifies that the information set forth in this statement is true,
complete and correct.
Dated: January 30, 1998
WEISS, PECK & GREER, L.L.C.
By: /s/ Richard S. Pollack
----------------------
Richard S. Pollack
General Counsel
Attention: Intentional misstatements or omissions of fact constitute
Federal criminal violations (see 18 U.S.C. 1001).
