UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934


Date of report (Date of earliest event reported)                    May 25, 2010

                               EMCOR Group, Inc.
--------------------------------------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)

                                    Delaware
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                 (State or Other Jurisdiction of Incorporation)

        1-8267                                            11-2125338
------------------------                    ------------------------------------
(Commission File Number)                    (I.R.S. Employer Identification No.)

     301 Merritt Seven, Norwalk, CT                     06851-1060
--------------------------------------------------------------------------------
(Address of Principal Executive Offices)                (Zip Code)

                                 (203) 849-7800
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              (Registrant's Telephone Number, Including Area Code)

                                      N/A
--------------------------------------------------------------------------------
         (Former Name or Former Address, if Changed Since Last Report)

     Check the  appropriate  box below if the Form 8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

__   Written  communications  pursuant to Rule 425 under the  Securities Act (17
     CFR 230.425)

__   Soliciting  material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)

__   Pre-commencement   communications  pursuant  to  Rule  14d-2(b)  under  the
     Exchange Act (17 CFR 240.14d-2(b))

__   Pre-commencement   communications  pursuant  to  Rule  13e-4(c)  under  the
     Exchange Act (17 CFR 240.13e-4(c))

Item 5.02.  Departure of Directors or Certain  Officers;  Election of Directors;
Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Departure of Chief Executive Officer

On May 25, 2010,  EMCOR Group,  Inc.  ("EMCOR" or the  "Company")  announced the
retirement  as Chief  Executive  Officer  of Frank T.  MacInnis,  the  Company's
Chairman  of the Board and Chief  Executive  Officer,  effective  as of close of
business January 3, 2011. Mr. MacInnis will continue to serve as Chairman of the
Company's  Board of  Directors  and during the  period  January 4, 2011  through
December 31, 2011 will continue in the Company's employ in an advisory capacity.

Compensatory Arrangements

On May 25, 2010, the Company entered into a letter  agreement (the  "Agreement")
with Frank T. MacInnis in connection  with his retirement as the Company's Chief
Executive  Officer and his  continued  service as an advisor to the Company from
January 4, 2011 through  December 31, 2011.  The  Agreement  was approved by the
Board of Directors of the Company and  provides,  among other  things,  that Mr.
MacInnis  will be paid an annual  salary of  $320,000  during this period of his
employment.

The  description of the Agreement is qualified in its entirety by the Agreement,
a copy of which is filed as Exhibit 99.1 hereto.

Appointment of Chief Executive Officer

On May 25, 2010, the Company also announced that Anthony J. Guzzi, 46, President
of EMCOR, has been appointed as the Company's Chief Executive  Officer effective
as of the close of  business  January  3,  2011.  Mr.  Guzzi  will  continue  as
President of the Company and a member of its Board of Directors.

Mr. Guzzi has been the  Company's  President and Chief  Operating  Officer since
October 2004. From August 2001, until he joined the Company, he was President of
the North American Distribution and Aftermarket Division of Carrier Corporation,
a  manufacturer   and  distributor  of  commercial  and  residential   HVAC  and
refrigeration  systems and equipment and a provider of aftermarket  services and
components of its own products and those of other manufacturers in both the HVAC
and refrigeration  industry.  Mr. Guzzi was elected to the Board on December 15,
2009. Mr. Guzzi is also a director of Hubbell International, Inc. Mr. Guzzi, who
has served as the Company  President and Chief  Operating  Officer for more than
five years, has extensive  knowledge of the Company's  business and, as a senior
executive  officer  of  Carrier  Corporation,  has  extensive  knowledge  of the
mechanical  services  business which  accounts for a significant  portion of the
Company's revenues and profits.

The Company  issued a press  release on May 25, 2010  announcing  Mr.  MacInnis'
planned retirement and the election of Mr. Guzzi as his successor. A copy of the
press release is filed as Exhibit 99.2 to this Report.

Item 9.01.    Financial Statements and Exhibits.

     (d) Exhibits

                     Exhibit                        Description
                     -------                        -----------

                 Exhibit 10.1      Letter Agreement dated May 25, 2010 between
                                   EMCOR Group, Inc. and Frank T. MacInnis.

                 Exhibit 99.1      Press Release of EMCOR Group, Inc. dated May
                                   25, 2010 announcing "EMCOR's Chairman & CEO
                                   Frank T. MacInnis Will Transition To
                                   Non-Executive Chairman; Anthony J. Guzzi To
                                   Be Named CEO".

                                   SIGNATURES

     Pursuant to the  requirements  of the  Securities  Exchange Act of 1934, as
amended,  the  Registrant has duly caused this Report to be signed on its behalf
by the undersigned hereunto duly authorized.


                                           EMCOR GROUP, INC.



Date:  May 25, 2010                        By: /s/ Sheldon I. Cammaker
                                               --------------------------------
                                                Name:  Sheldon I. Cammaker
                                                Title: Executive Vice President,
                                                       General Counsel, and
                                                       Secretary

                                 EXHIBIT INDEX

Exhibit Number                            Description
--------------                            -----------

     10.1         Letter Agreement dated May 25, 2010 between EMCOR Group, Inc.
                  and Frank T. MacInnis

     99.1         Press Release of EMCOR Group, Inc. dated May 25, 2010.

                                                                    Exhibit 10.1

                                EMCOR GROUP, INC.
                          301 MERRITT SEVEN, 6TH FLOOR
                                NORWALK, CT 06851




                                                                   May 25, 2010


Mr. Frank T. MacInnis
Chairman of the Board and
Chief Executive Officer
EMCOR Group, Inc.
301 Merritt Seven
Norwalk, CT  06851

Dear Frank:

     As we  discussed,  you have  decided to retire as Chief  Executive  Officer
("CEO")  of EMCOR  Group,  Inc.  (the  "Company")  effective  as of the close of
business January 3, 2011 (the "Effective  Date"). The Company wishes to continue
to retain  your  services  as an  employee  of the  Company  acting  as  advisor
("Advisor")  to the Company's  President and new CEO. The purpose of this letter
is to confirm the agreement between you and the Company.

1.   Your  retirement  as CEO of the Company will be effective  January 3, 2011.
     Your continued employment with the Company as Advisor shall commence on the
     Effective  Date and continue  through  December 31, 2011 at which time your
     employment with the Company will terminate (the "Termination Date").

2.   (a)  As Advisor to the President  and CEO of the Company,  you shall advise
          the CEO on such  matters  as he  shall,  from  time to time,  request.
          Subject to the terms and conditions  hereof,  you agree to be employed
          in such  capacity and devote your time and efforts to the  performance
          of the duties and responsibilities in connection therewith from one or
          more  office  locations  of your  choice.  You also agree to  continue
          serving as Chairman of the Board if elected to the Board and appointed
          as Chairman.

     (b)  Except  upon the prior  written  consent  of the  Board,  you will not
          during  the period you are  employed  as Advisor  (i) accept any other
          employment  or (ii)  engage,  directly  or  indirectly,  in any  other
          business  activity  (whether or not pursued for pecuniary  advantage).
          Nothing  in this  agreement  shall  preclude  you from  (i)  engaging,
          consistent  with  your  duties  and  responsibilities   hereunder,  in
          charitable  and/or  community  affairs,  (ii)  managing  your personal
          investments,  (iii)  continuing to serve on the boards of directors on
          which you presently serve (to the extent such service is not precluded
          by federal or state law or by  conflict  of interest by reason of your
          position  with the Company),  or (iv) serving,  subject to approval of
          the Board,  as a member of the board of directors of other  companies,
          provided that such activities do not interfere with the performance of
          your  duties   hereunder.   Notwithstanding   the  foregoing  and  the
          provisions of Section 5 hereof, it is expressly acknowledged that your
          existing  ownership in, and service as a director  and/or  officer of,
          ComNet  Communications,  Inc.  ("ComNet")  have been  disclosed to the
          Company and that your  continuing  ownership  thereof and,  consistent
          with  past  practice,   reasonable  activities  associated  therewith,
          including without limitation,  continuing as a director and/or officer
          thereof shall be permitted under the terms of this agreement and shall
          not constitute a breach hereof.

     (c)  You  acknowledge  that your employment as Advisor by the Company is at
          will and either you or the Company may terminate your employment prior
          to the Termination Date with immediate effect upon notice to the other
          party.

3.   (a)  Your salary for serving as Advisor shall be $320,000 per annum payable
          in accordance  with the Company's  normal payroll  practices,  and you
          shall continue to be entitled to  participate in the Company's  health
          and welfare benefit and 401(k) plans generally  available to employees
          of the  Company in  accordance  with and subject to their  terms.  You
          shall  continue  to be  entitled  to  reasonable  periods of  vacation
          consistent  with  past  practice.   Between  the  Effective  Date  and
          termination  of your  employment,  you  shall not be  entitled  to any
          perquisites that you currently enjoy as a senior executive  officer of
          the Company.

     (b)  As an  employee-director  of the Company, you shall not be entitled to
          receive any  compensation or other fees in respect of 2011 for serving
          as a director  of the  Company,  including  serving as Chairman of the
          Board.  Following  termination  of your  employment and so long as you
          thereafter  serve as a member of the Board,  you shall be  entitled to
          the same compensation awarded to each other non-employee member of the
          Board for service as a director in addition to compensation awarded to
          you, if any, for serving as Chairman of the Board.

4.   (a)  Except as  hereafter  provided,  all rights  granted to you under your
          stock option agreements in effect as of the Effective Date,  including
          the vesting and exercisability  periods of such awards, shall continue
          in accordance with the terms thereof during the term of your continued
          employment.  Notwithstanding  anything  to the  contrary in your stock
          option agreements or in the immediately  preceding sentence,  if after
          the  Effective  Date your  employment  is  terminated  by the  Company
          without   Cause  (as  that  term  is  defined  in  your  stock  option
          agreements) or by you for Good Reason (as that term is defined in your
          stock  option  agreements)  in no event may you  exercise  your  stock
          options after March 30, 2012;  provided  that the foregoing  shall not
          apply to your  stock  options  granted  pursuant  to  agreement  dated
          December  14, 2001  inasmuch as such stock  options are by their terms
          exercisable through December 13, 2011 regardless of whether or not you
          are an  employee  of the  Company  or the  reason  you  cease to be an
          employee.

     (b)  Assuming  that  you  continue  in the  Company's  employ  through  the
          Effective  Date in your  present  position  and on  current  terms  of
          employment,  you will  vest on  January  2, 2011 in your  stock  units
          granted in 2008, including those granted under the Company's Long Term
          Incentive Plan ("LTIP"), and the underlying shares will be paid to you
          in accordance  with the terms of the LTIP.  Except for earlier vesting
          in the case of your death,  you will vest on the  Termination  Date in
          your stock units  granted  under the LTIP in January  2009 and January
          2010 and the underlying  shares will be paid six months  following the
          Termination Date.

     (c)  Assuming you continue in the  Company's  employ  through the Effective
          Date in your present  position and on the current terms of employment,
          notwithstanding   anything  in  the  LTIP  to  the  contrary,  if,  in
          accordance  with the terms of the LTIP,  you shall be  entitled to any
          payment in respect of cash awards for the  measurement  periods 2009 -
          2011 and/or 2010 - 2012, you shall only be entitled to a payment in an
          amount equal to (i) for the 2009 - 2011 measurement period, 66-2/3% of
          the amount you would have been  entitled to had you remained  employed
          through  December  31,  2011 and (ii) for the 2010 - 2012  measurement
          period,  33-1/3% of the amount you would have been entitled to had you
          remained  employed  through  December 31, 2012.  For the  avoidance of
          doubt, if under the terms of the LTIP you would not have been entitled
          to any  payment  in  respect  of a cash  award  for an  aforementioned
          measurement  period had you continued in the Company's employ for such
          entire  measurement  period,  then you  shall not be  entitled  to any
          payment in respect thereof.

     (d)  By signing this letter,  you acknowledge that your retirement from the
          position of CEO on the Effective  Date,  your continued  employment at
          the Company in the role of Advisor from the Effective Date through the
          Termination   Date,  and  any  associated   changes  to  your  duties,
          responsibilities,  compensation  and benefits in accordance  with this
          agreement  will not result in vesting as of the Effective  Date of any
          stock  units or any other LTIP award and do not provide you with "Good
          Reason" to terminate  your  employment  for purposes of the LTIP,  any
          stock option  award,  or the Severance  Agreement  between you and the
          Company  dated as of April 25, 2005, as amended from time to time (the
          "Severance Agreement").

5.   As of December 31, 2010, (a) the Continuity  Agreement  between you and the
     Company  dated as of June 22, 1998,  as amended from time to time,  and (b)
     the provisions of the Severance  Agreement (other than Sections 6.01, 6.02,
     6.03, and 6.05 thereof), as amended from time to time, shall terminate.  As
     of December 31, 2010 you shall no longer be entitled to  additional  awards
     of stock units or potential cash awards under the LTIP.

6.   The  Board  may or may  not,  in its  sole  discretion,  nominate  you  for
     reelection  to the Board  and/or  appoint  you as  Chairman  of the  Board.
     Failure to nominate you for reelection to the Board or failure to reappoint
     you as  Chairman  of the Board at any time  prior to the  Termination  Date
     shall not  constitute  "Good Reason" for you to terminate  your  employment
     with the  Company  for  purposes  of your stock  units or any stock  option
     award.

7.   So long as you  shall  serve as  Advisor,  you  shall be  entitled,  at the
     Company's  expense,  to  administrative   assistance.   The  Company  shall
     reimburse you, in accordance with Company policies, as amended from time to
     time, for reasonable  business  expenses incurred by you in the performance
     of your duties hereunder, including those as a member of the Board.

8.   If  any  provision  of  this  agreement   shall  be  declared   invalid  or
     unenforceable,  in whole or in part,  such  invalidity or  unenforceability
     shall not affect the  remaining  provisions  hereof,  which shall remain in
     full force and effect.

9.   The terms of this  agreement are intended by us to be the final  expression
     of our agreement with respect to your  employment  with us and your service
     as a member of the Board, including as Chairman.

     Please sign and return a copy of this letter to confirm your agreement with
the foregoing.

                                           Very truly yours,

                                           EMCOR Group, Inc.




                                           By: /s/ Anthony J. Guzzi
                                               --------------------------------
                                                Name:  Anthony J. Guzzi
                                                Title: President



The foregoing is hereby confirmed and agreed to.



/s/ Frank T. MacInnis
--------------------------------
Name:  Frank T. MacInnis


                                                                    Exhibit 99.1

                          FOR:      EMCOR GROUP, INC.

                          CONTACT:  R. Kevin Matz
                                    Executive Vice President
                                    Shared Services
                                    (203) 849-7938

                                    FD
                                    Investors: Eric Boyriven / Alexandra Tramont
                                    (212) 850-5600

                                    Linden Alschuler & Kaplan, Inc.
                                    Media: Suzanne Dawson / Cecile Fradkin
                                    212-575-4545


                    EMCOR GROUP ANNOUNCES CEO SUCCESSION PLAN
              - CHAIRMAN & CEO FRANK T. MACINNIS WILL TRANSITION TO
                            NON-EXECUTIVE CHAIRMAN -
                      - ANTHONY J. GUZZI WILL BECOME CEO -


NORWALK,  CONNECTICUT,  May 25, 2010 - EMCOR Group, Inc. (NYSE:  EME), a Fortune
500 leader in mechanical and electrical construction,  energy infrastructure and
facilities  services,  today  announced  that its Chairman  and Chief  Executive
Officer,  Frank T.  MacInnis,  age 63,  will retire as Chief  Executive  Officer
effective  January  3,  2011,  after  serving  as such for over 16 years.  It is
expected that Mr. MacInnis will continue to serve as  non-executive  Chairman of
EMCOR's Board of Directors.

Mr.  Anthony J. Guzzi,  age 46,  current  EMCOR  President  and Chief  Operating
Officer,  will succeed Mr.  MacInnis as Chief Executive  Officer.  Mr. Guzzi was
elected to the Board of  Directors in December  2009,  will remain a director of
the Company,  and will retain the title of  President.  As part of the Company's
succession  planning process,  Mr. Guzzi was identified as a potential successor
to Mr.  MacInnis  when he joined  the  Company  in 2004 as  President  and Chief
Operating Officer.

Stephen W. Bershad,  Chair of the Board's  Compensation and Personnel Committee,
stated: "Frank MacInnis has done an outstanding job as EMCOR's Chairman and CEO,
leading the Company into a period of  significant  expansion and  prosperity for
which we are deeply indebted to him. Under Frank's 16-year leadership, EMCOR has
grown from a group of specialty  contracting  subsidiary companies with revenues
in 1994 of $1.8 billion and shareholders  equity of $81.1 million,  to a Fortune
500 company, a global leader in mechanical and electrical  construction,  energy
infrastructure and facilities services, with 2009 revenues of over $5.5 billion,
net income of $161 million and current market  capitalization  of  approximately
$1.6 billion.  During Frank's  stewardship EMCOR has been recognized by business
publications  as among the 'World's Most Admired' and 'Best Managed  Companies'.
Perhaps most  importantly,  Frank has built a management team capable of leading
the Company into the future."

Mr. Bershad continued, "Today's announcement ensures continued strong leadership
for EMCOR.  Tony Guzzi is a proven  leader in the  industry,  ideally  suited to
succeed  Frank as Chief  Executive  Officer and to guide  EMCOR's  growth in the
years  to  come.  Tony  has  played  a key  leadership  role  in  the  Company's
transformation over the past five years. He has been instrumental in driving the
Company's  successful  effort to diversify  its revenue and profit base,  and to
enable it to prosper  across  economic  cycles,  as evidenced  by the  Company's
excellent  performance  in the recent  recession.  He has also played a critical
role in  leading  EMCOR's  disciplined  approach  to  project  bidding,  program
management and cost  controls,  all of which have enabled the Company to weather
the recent  downturn in the market and be  positioned  to take  advantage of the
eventual rebound."

Mr. MacInnis commented, "EMCOR Group is a rare example of a company that emerges
from reorganization and attains a leading position in its industry. I am pleased
that I was  chosen  to lead  the  reconstruction  of our  Company;  proud of our
success in doing so; and  grateful  for the  opportunity  to continue my work as
Chairman of EMCOR. With growing evidence of improved economic  conditions,  I am
glad to be able to leave the industry's  strongest balance sheet and the world's
largest and  best-performing  company of its kind in Tony Guzzi's capable hands,
and I look forward to working closely with him to ensure a smooth transition."

Mr. Guzzi stated, "I've learned a great deal from working closely with Frank for
nearly six years,  and I'm honored and very excited to take on this  opportunity
to lead EMCOR.  EMCOR  continues  to benefit  from our broad and diverse  market
exposure, as the initiatives we have undertaken have positioned us to capitalize
on opportunities  across our end markets.  I look forward to leading the Company
in the coming years and continuing our strategy for growth and success."

Prior to joining  EMCOR  Group,  Mr.  Guzzi held a variety of senior  leadership
positions at United  Technologies  Corporation  (NYSE:  UTX) and its  subsidiary
Carrier  Corporation  from  1997  to  October  2004.  Prior  to  joining  United
Technologies,  Mr.  Guzzi was an  Engagement  Manager at McKinsey & Company from
1993 to 1996.

From 1986 to 1991, he served in the U.S. Army as a Light Infantry Captain and is
Ranger  qualified.  Mr. Guzzi received a B.S. in Civil Engineering and Economics
from the United  States  Military  Academy  (West Point) in 1986. He received an
M.B.A. from Harvard Business School in 1993.


About EMCOR Group, Inc.

A Fortune 500 company with estimated 2010 revenues of $5.0 billion, EMCOR Group,
Inc. (NYSE:  EME) is a global leader in mechanical and electrical  construction,
energy  infrastructure,  and facilities services. A leading provider of critical
infrastructure  systems, EMCOR gives life to new structures and sustains life in
existing  ones  by  its  planning,  installing,   operating,   maintaining,  and
protecting  the   sophisticated   and  dynamic   systems  that  create  facility
environments---such  as  electrical,  mechanical,  lighting,  air  conditioning,
heating,  security, fire protection, and power generation systems---in virtually
every sector of the economy and for a diverse range of businesses, organizations
and government.  EMCOR  represents a rare  combination of broad reach with local
execution,  combining the strength of an industry  leader with the knowledge and
care of 170  locations.  The  26,000  skilled  employees  of EMCOR have made the
company, in the eyes of leading business publications, amongst the "World's Most
Admired" and "Best  Managed".  EMCOR's  diversity---in  terms of the services it
provides,  the industries it serves and the geography it spans---has  enabled it
to  create a  stable  platform  for  sustained  results.  The  Company's  strong
financial position has enabled it to attract and retain among the best local and
regional talent, to undertake and complete the most ambitious  projects,  and to
redefine  and  shape the  future of the  construction  and  facilities  services
industry. Additional information on EMCOR can be found at www.EMCORGroup.com.

     This  release may contain  certain  forward-looking  statements  within the
meaning of the Private  Securities  Reform Act of 1995.  Any such  comments  are
based upon information available to EMCOR management and its perception thereof,
as  of  this  date,   and  EMCOR  assumes  no  obligation  to  update  any  such
forward-looking   statements.   These  forward-looking  statements  may  include
statements  regarding market  opportunities,  market share growth, gross profit,
backlog mix,  projects with varying  profit  margins,  and selling,  general and
administrative  expenses.  These  forward-looking  statements  involve risks and
uncertainties  that could cause  actual  results to differ  materially  from the
forward-looking  statements.  Accordingly  these  statements are no guarantee of
future performance. Such risk and uncertainties include, but are not limited to,
adverse  effects  of  general  economic  conditions,  changes  in the  political
environment,  changes in the  specific  markets  for EMCOR's  services,  adverse
business  conditions,   availability  of  adequate  levels  of  surety  bonding,
increased  competition,  unfavorable  labor  productivity  and mix of  business.
Certain of the risks and  factors  associated  with  EMCOR's  business  are also
discussed in the Company's  2009 Form 10-K,  its Form 10-Q for the first quarter
ended  March 31,  2010,  and in other  reports  filed from time to time with the
Securities and Exchange Commission.  All these risks and factors should be taken
into account in evaluating any forward-looking statements.