CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
CURRENT ASSETS:
Cash and cash equivalents	$ 28,811	$ 51,237
Accounts receivable, less allowance for doubtful accounts of $7,271 and $5,341, respectively	285,333	267,060
Other receivables	5,981	6,527
Inventories	10,465	10,631
Prepaid expenses and other	28,572	24,664
Costs and estimated earnings in excess of billings	31,079	27,163
Total current assets	390,241	387,282
PROPERTY AND EQUIPMENT, NET	42,251	42,013
GOODWILL	114,593	107,093
IDENTIFIABLE INTANGIBLE ASSETS, NET	49,206	48,349
OTHER NONCURRENT ASSETS	8,330	6,329
Total assets	604,621	591,066
CURRENT LIABILITIES:
Current maturities of long-term debt	300	300
Current maturities of notes to former owners	332	332
Accounts payable	109,833	114,255
Accrued compensation and benefits	36,623	36,474
Billings in excess of costs and estimated earnings	73,686	71,730
Accrued self-insurance expense	27,293	27,408
Other current liabilities	27,779	27,472
Total current liabilities	275,846	277,971
LONG-TERM DEBT, NET OF CURRENT MATURITIES	20,400	2,400
NOTES TO FORMER OWNERS, NET OF CURRENT MATURITIES	8,249	12,349
DEFERRED INCOME TAX LIABILITIES	6,485	4,541
OTHER LONG-TERM LIABILITIES	12,796	10,699
Total liabilities	323,776	307,960
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par, 5,000,000 shares authorized, none issued and outstanding
Common stock, $.01 par, 102,969,912 shares authorized, 41,123,365 and 41,123,365 shares issued, respectively	411	411
Treasury stock, at cost, 3,781,965 and 3,714,506 shares, respectively	(40,054)	(39,437)
Additional paid-in capital	320,585	323,608
Retained earnings (deficit)	(16,552)	(19,991)
Comfort Systems USA, Inc. stockholders' equity	264,390	264,591
Noncontrolling interests	16,455	18,515
Total stockholders' equity	280,845	283,106
Total liabilities and stockholders' equity	$ 604,621	$ 591,066