EXHIBIT 10(b)(b)

June 22, 2004


[Name of Executive Officer]
EMCOR Group, Inc.
301 Merritt Seven
Norwalk, CT  06851


Dear ___________:

     As of June 9, 2004, you held the following unvested options:

        Date of Grant              Number of Options          Exercise Price
       ---------------             -----------------          --------------
       January 2, 2003                   ______                   $54.73
       January 2, 2004                   ______                   $43.83

     Please be advised  that on June 10,  2004,  the Board of  Directors  of the
Company agreed that the aforementioned  options shall be vested as of that date.
Accordingly, those options may be exercised at any time or from time to time, in
whole or in part,  from and after June 10, 2004  subject to any other terms with
respect to the  expiration  or  cancellation  of such  options  contained in the
Option  Agreements  between  you and the Company  evidencing  the grants of such
options.


                                             Very truly yours,

                                             EMCOR Group, Inc.


                                             by /s/ FRANK T. MACINNIS
                                                ---------------------
                                                Frank T. MacInnis