<SEC-DOCUMENT>0001558370-21-005075-index.html : 20210428
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<ACCEPTANCE-DATETIME>20210428161333
ACCESSION NUMBER:		0001558370-21-005075
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		16
CONFORMED PERIOD OF REPORT:	20210428
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20210428
DATE AS OF CHANGE:		20210428

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:		21864376

	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
</SEC-HEADER>
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Document 1 - file: fix-20210428x8k.htm

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Document 2 - file: fix-20210428xex99d1.htm

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Document 3 - file: fix-20210428xex99d2.htm

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Document 4 - file: fix-20210428xex99d1001.jpg

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<FILENAME>fix-20210428xex99d2001.jpg
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Document 5 - file: fix-20210428xex99d2001.jpg

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Document 6 - file: fix-20210428.xsd

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<DESCRIPTION>EX-101.LAB
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Document 7 - file: fix-20210428_lab.xml

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<FILENAME>fix-20210428_pre.xml
<DESCRIPTION>EX-101.PRE
<TEXT>
Document 8 - file: fix-20210428_pre.xml

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Document 10 - file: R1.htm

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<TYPE>EXCEL
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<TEXT>
Document 11 - file: Financial_Report.xlsx

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Document 12 - file: Show.js

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Document 13 - file: report.css

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<SEQUENCE>14
<FILENAME>FilingSummary.xml
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Document 14 - file: FilingSummary.html

Document 14 - RAW XML: FilingSummary.xml

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<DOCUMENT>
<TYPE>JSON
<SEQUENCE>16
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 16 - file: MetaLinks.json

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<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>17
<FILENAME>0001558370-21-005075-xbrl.zip
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Document 17 - file: 0001558370-21-005075-xbrl.zip

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