================================================================================ 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 5, 2003 COMMISSION FILE NUMBER: 1-13011 COMFORT SYSTEMS USA, INC. (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER) DELAWARE 76-0526487 (State or other jurisdiction (I.R.S. Employer of incorporation) Identification No.) 777 POST OAK BOULEVARD SUITE 500 HOUSTON, TEXAS 77056 (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) (ZIP CODE) REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (713) 830-9600 ================================================================================ ITEM 7(c) EXHIBITS The following Exhibits are included herein: Exhibit 99 Press Release of Comfort Systems USA, Inc. dated May 5, 2003, reporting Comfort's financial results for the first quarter of 2003. ITEM 12. MATERIAL INFORMATION DISCLOSURE Attached and incorporated herein by reference as Exhibit 99 is a copy of a press release of Comfort System USA, Inc. dated May 5, 2003, reporting Comfort's financial results for the first quarter of 2003. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. COMFORT SYSTEMS USA, INC. By: /s/ William George ------------------------------- William George Senior Vice President and General Counsel Date: May 5, 2003 -2- EXHIBIT INDEX Exhibit Number Description ------- ----------- 99 Press Release of Comfort System USA, Inc. dated May 5, 2003, reporting Comfort's financial results for the first quarter of 2003. -3-