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    ACCESSION NUMBER:		0001104659-18-065738
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		21
    CONFORMED PERIOD OF REPORT:	20181102
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20181102
    DATE AS OF CHANGE:		20181102

    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:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-13011
    		FILM NUMBER:		181157092

    	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 3 - file: g394661mmi001.gif

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    Document 4 - file: g394661mmi002.gif

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    Document 5 - file: g394661mmi003.gif

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    Document 6 - file: g394661mmi004.gif

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    Document 7 - file: g394661mmi005.gif

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    Document 8 - file: g394661mmi006.gif

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    Document 9 - file: g394661mmi007.gif

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    Document 11 - file: g394661mmi009.gif

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    Document 12 - file: g394661mmi010.gif

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    Document 13 - file: g394661mmi011.gif

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    Document 14 - file: g394661mmi012.gif

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    Document 17 - file: g394661mmi015.gif

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    Document 18 - file: g394661mmi016.gif

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    Document 19 - file: g394661mmi017.gif

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    Document 20 - file: g394661mmi018.gif

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