<SEC-DOCUMENT>0001558370-19-002998-index.html : 20190415
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<ACCEPTANCE-DATETIME>20190415160202
ACCESSION NUMBER:		0001558370-19-002998
CONFORMED SUBMISSION TYPE:	ARS
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20181231
FILED AS OF DATE:		20190415
DATE AS OF CHANGE:		20190415
EFFECTIVENESS DATE:		20190415

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMFORT SYSTEMS USA INC
		CENTRAL INDEX KEY:			0001035983
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRICAL WORK [1731]
		IRS NUMBER:				760526487
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		ARS
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13011
		FILM NUMBER:		19748618

	BUSINESS ADDRESS:	
		STREET 1:		675 BERING DRIVE
		STREET 2:		SUITE 400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77057
		BUSINESS PHONE:		7138309600

	MAIL ADDRESS:	
		STREET 1:		675 BERING DRIVE
		STREET 2:		SUITE 400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77057
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Document 1 - file: fix-20190415x10k.htm

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Document 4 - file: fix20190415x10k003.gif

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Document 5 - file: fix20190415x10k004.gif

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Document 6 - file: fix20190415x10k005.gif

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Document 7 - file: fix20190415x10k006.gif

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Document 8 - file: fix20190415x10k007.gif

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Document 9 - file: fix20190415x10k008.gif

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Document 10 - file: fix20190415x10k009.gif

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