================================================================================ 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): NOVEMBER 12, 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 of (I.R.S. Employer Identification No.) incorporation) 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 November 12, 2003, reporting Comfort's financial results for the third 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 November 12, 2003, reporting Comfort's financial results for the third 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: November 14, 2003 -2-

EXHIBIT INDEX

Exhibit Number Description 99 Press Release of Comfort System USA, Inc. dated November 12, 2003, reporting Comfort's financial results for the thrid quarter of 2003.
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Exhibit 99 (COMFORT SYSTEMS USA, INC. LOGO) 777 Post Oak Blvd, Suite 500 Houston, Texas 77056 713-830-9600 Fax 713-830-9696 CONTACT: Gordon Beittenmiller Chief Financial Officer (713) 830-9600 FOR IMMEDIATE RELEASE COMFORT SYSTEMS USA REPORTS THIRD QUARTER RESULTS SEQUENTIAL OPERATING INCOME AND MARGIN GROWTH CONTINUED COST CONTAINMENT HOUSTON, TX -- NOVEMBER 12, 2003 -- COMFORT SYSTEMS USA, INC. (NYSE: FIX), a leading provider of commercial, industrial and institutional heating, ventilation and air conditioning ("HVAC") services, today announced net income of $175,000 or $0.00 per diluted share, for the quarter ended September 30, 2003, as compared to net income of $3,740,000 or $0.10 per diluted share, in the third quarter of 2002. Net income from continuing operations for the quarter was $2,806,000 or $0.07 per diluted share in the third quarter of 2003. Excluding the restructuring charges, net income from continuing operations was $3,423,000 or $0.09 per diluted share for the quarter as compared to $3,581,000 or $0.09 per diluted share in the third quarter of 2002. The Company reported revenues from continuing operations of $210,198,000 in the current quarter as compared to $212,071,000 in 2002. Bill Murdy, Comfort Systems USA's Chairman and CEO, said, "Our third quarter reflected another period of steady progress for Comfort Systems USA. While industry activity levels were still restrained, our same-store revenues during the quarter increased 1.3% year-over-year, our best top-line comparison over the past two and a half years of very difficult industry conditions. In addition, excluding a modest restructuring charge, operating margins were up from the second quarter and virtually unchanged from last year's third quarter. This reflects our best year-over-year margin comparison in over a year, as our diligent cost containment kept pace with continuing gross margin pressure." The Company reported net income from continuing operations of $1,336,000 or $0.04 per diluted share for the first nine months of 2003 as compared to net income from continuing operations of $4,578,000 or $0.12 per diluted share for the first nine months of 2002. Excluding restructuring charges in both years, and a nonrecurring credit for a favorable receivables settlement in 2002, net income from continuing operations was $3,431,000 or $0.09 per diluted share for the first nine months of 2003 as compared to $5,279,000 or $0.14 per diluted share for the same period in 2002. The Company reported revenues of $592,029,000 from continuing operations for the current year to date, as compared to $609,836,000 in 2002. Murdy continued, "We continue to see signs of improving conditions in our industry. Recent economic and industry measures have taken positive turns, and commentary from the major industry manufacturers is cautiously optimistic, including continuing recognition of the build-up of deferred maintenance and replacement needs in the installed HVAC base. Based on -4-

these trends, our 2004 planning and budgeting work, and our ongoing focus on improving operating execution, we continue to expect that our 2004 results will be significantly better than 2003." The Company will host a conference call to discuss its financial results and position in more depth on Wednesday, November 12, 2003 at 10:00 a.m. Central Time. The call-in number for this conference call is 1-630-395-0024. A replay of the entire call will be available until 6:00 p.m. Central Time, Wednesday, November 19, 2003 by calling 1-402-998-1545. Comfort Systems USA is a premier provider of business solutions addressing workplace comfort, with 84 locations in 57 cities around the nation. For more information, visit the Company's website at www.comfortsystemsusa.com. This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are based on the current plans and expectations of Comfort Systems USA, Inc. and involve risks and uncertainties that could cause actual future activities and results of operations to be materially different from those set forth in the forward-looking statements. Important factors that could cause actual results to differ include, among others, the lack of a combined operating history and the difficulty of integrating formerly separate businesses, retention of key management, national and regional declines in non-residential construction activity, difficulty in obtaining or increased costs associated with debt financing or bonding, shortages of labor and specialty building materials, seasonal fluctuations in the demand for HVAC systems and the use of incorrect estimates for bidding a fixed price contract and other risks detailed in the Company's reports filed with the Securities and Exchange Commission. - Financial table follows - -5-

Comfort Systems USA, Inc. Consolidated Statements of Operations For the Three Months and Nine Months Ended September 30, 2003 and 2002 (in thousands, except per share amounts) (Unaudited)

Three Months Ended Nine Months Ended September 30, September 30, --------------------------------------------- ------------------------------------------- 2003 % 2002 % 2003 % 2002 % --------- ----- --------- ------ --------- ----- ---------- ----- Revenues $ 210,198 100.0% $ 212,071 100.0% $ 592,029 100.0% $ 609,836 100.0% Cost of services 174,771 83.1% 172,726 81.4% 494,873 83.6% 502,552 82.4% --------- --------- --------- --------- Gross profit 35,427 16.9% 39,345 18.6% 97,156 16.4% 107,284 17.6% SG&A 28,064 13.4% 31,665 14.9% 87,712 14.8% 93,876 15.4% Restructuring charges 949 0.5% -- -- 3,223 0.5% 1,878 0.3% --------- --------- --------- --------- Income from operations 6,414 3.1% 7,680 3.6% 6,221 1.1% 11,530 1.9% Interest expense, net 1,078 0.5% 947 0.4% 3,495 0.6% 3,919 0.6% Other expense (income) (42) -- (116) (0.1)% 105 -- (1,232) (0.2)% --------- --------- --------- --------- Income before taxes 5,378 2.6% 6,849 3.2% 2,621 0.4% 8,843 1.5% Income taxes 2,572 3,268 1,285 4,265 --------- --------- --------- --------- Income from continuing operations 2,806 1.3% 3,581 1.7% 1,336 0.2% 4,578 0.8% Discontinued operations: Operating income (loss), net of applicable income tax benefit (expense) of $92, $91, $(174) and $1,655 142 159 281 353 Estimated loss on disposition, including income tax expense of $43, $0, $274 and $25,887 (2,773) -- (3,685) (11,156) --------- --------- --------- --------- Income (loss) before cumulative effect of change in accounting principle 175 3,740 (2,068) (6,225) Cumulative effect of change in accounting principle, net of income tax benefit of $26,317 -- -- -- (202,521) --------- --------- --------- --------- Net income (loss) $ 175 $ 3,740 $ (2,068) $(208,746) ========= ========= ========= ========= Income (loss) per share: Basic- Income from continuing operations $ 0.07 $ 0.10 $ 0.04 $ 0.12 Discontinued operations - Income (loss) from operations -- -- 0.01 0.01 Estimated loss on disposition (0.07) -- (0.10) (0.29) Cumulative effect of change in accounting principle -- -- -- (5.37) --------- --------- --------- --------- Net income (loss) $ -- $ 0.10 $ (0.05) $ (5.53) ========= ========= ========= ========= Diluted - Income from continuing operations $ 0.07 $ 0.09 $ 0.04 $ 0.12 Discontinued operations - Income (loss) from operations -- 0.01 0.01 -- Estimated loss on disposition (0.07) -- (0.10) (0.29) Cumulative effect of change in accounting principle -- -- -- (5.30) --------- --------- --------- --------- Net income (loss) $ -- $ 0.10 $ (0.05) $ (5.47) ========= ========= ========= ========= Shares used in computing income (loss) per share: Basic 37,713 37,834 37,659 37,736 Diluted 38,454 38,131 38,081 38,192
Note 1: The diluted earnings per share data presented above reflects the dilutive effect, if any, of stock options, convertible notes, warrants and contingently issuable restricted stock which were outstanding during the periods presented. -6-

Supplemental Information (Unaudited)

Three Months Ended Nine Months Ended September 30, September 30, -------------------------------------------- -------------------------------------------- % of % of % of % of 2003 Revenues 2002 Revenues 2003 Revenues 2002 Revenues --------- -------- --------- -------- --------- -------- --------- -------- Income from operations $ 6,414 $ 7,680 $ 6,221 $ 11,530 Restructuring charges 949 -- 3,223 1,878 Kmart reserve reversal -- -- -- (800) --------- --------- --------- --------- Income from operations, excluding restructuring charges and Kmart reserve reversal $ 7,363 3.5% $ 7,680 3.6% $ 9,444 1.6% $ 12,608 2.1% Net income (loss) $ 175 $ 3,740 $ (2,068) $(208,746) Cumulative effect of change in accounting principle -- -- -- 202,521 Discontinued operations 2,631 (159) 3,404 10,803 Income taxes 2,572 3,268 1,285 4,265 Other expense (income) (42) (116) 105 (1,232) Interest expense, net 1,078 947 3,495 3,919 Depreciation 1,293 1,677 3,996 4,948 Restructuring charges 949 -- 3,223 1,878 Kmart reserve reversal -- -- -- (800) --------- --------- --------- --------- EBITDA $ 8,656 4.1% $ 9,357 4.4% $ 13,440 2.3% $ 17,556 2.9% Income from continuing operations (after tax) $ 2,806 $ 3,581 $ 1,336 $ 4,578 Restructuring charges (after tax) 617 -- 2,095 1,221 Kmart reserve reversal (after tax) -- -- -- (520) --------- --------- --------- --------- Income from continuing operations (after tax), excluding restructuring charges and Kmart reserve reversal $ 3,423 1.6% $ 3,581 1.7% $ 3,431 0.6% $ 5,279 0.9% Diluted earnings per share-income from continuing operations (after tax), excluding restructuring charges and Kmart reserve reversal $ 0.09 $ 0.09 $ 0.09 $ 0.14
Note 1: Income from operations, excluding restructuring charges and Kmart reserve reversal is presented because the Company believes it reflects the results of the core ongoing operations of the Company. However, this measure is not considered a primary measure of an entity's financial results under generally accepted accounting principles, and accordingly, this amount should not be considered an alternative to operating income as determined under generally accepted accounting principles and as reported by the Company. Note 2: The Company defines earnings before interest, taxes, depreciation and amortization (EBITDA) as net income (loss), excluding cumulative effect of change in accounting principle, discontinued operations, income taxes, other expense (income), interest expense, net, depreciation, restructuring charges and Kmart reserve reversal. EBITDA may be defined differently by other companies. EBITDA is presented because it is a financial measure that is frequently requested by capital market participants in evaluating the Company. However, EBITDA is not considered under generally accepted accounting principles as a primary measure of an entity's financial results, and accordingly, EBITDA should not be considered an alternative to operating income, net income, or cash flows as determined under generally accepted accounting principles and as reported by the Company. Note 3: The bottom two calculations in the above table show income from continuing operations (after tax) and related earnings per share information excluding restructuring charges and Kmart reserve reversal. The tax rate on these items was computed using the pro forma effective tax rate of the Company exclusive of these charges. -7-

COMFORT SYSTEMS USA, INC. CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands)

September 30, December 31, 2003 2002 ------------- ------------- (unaudited) Cash and cash equivalents $ 7,820 $ 6,017 Accounts receivable, net 170,737 166,274 Costs and estimated earnings in excess of billings 16,520 17,811 Assets related to discontinued 1,405 7,221 operations Other current assets 26,791 30,391 ------------- ------------- Total current assets 223,273 227,714 Property and equipment, net 14,054 15,972 Goodwill 109,471 109,471 Other noncurrent assets 11,298 13,378 ------------- ------------- Total assets $ 358,096 $ 366,535 ============= ============= Current maturities of long-term debt $ 4,385 $ 1,780 Accounts payable 57,528 56,330 Billings in excess of costs and estimated earnings 29,313 26,633 Liabilities related to discontinued operations 672 1,723 Other current liabilities 48,910 61,187 ------------- ------------- Total current liabilities 140,808 147,653 Long-term debt, net of discount 10,732 10,604 Other long-term liabilities 3,365 3,192 ------------- ------------- Total liabilities 154,905 161,449 Total equity 203,191 205,086 ------------- ------------- Total liabilities and equity $ 358,096 $ 366,535 ============= =============
Selected Cash Flow Data (in thousands) (unaudited):
Three Months Ended Nine Months Ended September 30, September 30, ------------------------------ ------------------------------ 2003 2002 2003 2002 ------------- ------------- ------------- ------------- Cash flow from operating activities $ (6,437) $ 12,114 $ 5,143 $ 13,807 Cash flow from investing activities $ (510) $ (844) $ (5,096) $ 151,785 Cash flow from financing activities $ 3,352 $ (13,269) $ 1,669 $ (165,592) Cash flow from operating activities $ (6,437) $ 12,114 $ 5,143 $ 13,807 Taxes paid related to the sale of businesses -- -- 10,371 -- Purchases of property and equipment (714) (974) (2,661) (4,044) Proceeds from sales of property and equipment 208 196 319 1,330 ------------- ------------- ------------- ------------- Free cash flow $ (6,943) $ 11,336 $ 13,172 $ 11,093
Note 1: The Company defines free cash flow as cash flow from operating activities less items related to certain transactions such as sales of businesses and customary capital expenditures plus the proceeds from asset sales. Other companies may define free cash flow differently. Free cash flow is presented because it is a financial measure that is frequently requested by capital market participants in evaluating the Company. However, free cash flow is not considered under generally accepted accounting principles to be a primary measure of an entity's financial results, and accordingly, free cash flow should not be considered an alternative to operating income, net income, or cash flows as determined under generally accepted accounting principles and as reported by the Company. Note 2: Cash flow information for 2002 includes the results of discontinued operations, including the 19 operations sold to Emcor in the first quarter of 2002. -8-