<SEC-DOCUMENT>0001179110-18-012438-index.html : 20181101
<SEC-HEADER>0001179110-18-012438.hdr.sgml : 20181101
<ACCEPTANCE-DATETIME>20181101153701
ACCESSION NUMBER:		0001179110-18-012438
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20181101
FILED AS OF DATE:		20181101
DATE AS OF CHANGE:		20181101

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mercado, Pablo G.
		CENTRAL INDEX KEY:			0001535246

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13011
		FILM NUMBER:		181153497

	BUSINESS ADDRESS:	
		STREET 1:		920 MEMORIAL CITY WAY, SUITE 800
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024
		BUSINESS PHONE:		(281) 949-2500

	MAIL ADDRESS:	
		STREET 1:		920 MEMORIAL CITY WAY, SUITE 800
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024

ISSUER:		

	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

	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>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 3 -
<TEXT>
Document 1 - file: edgar.html

Document 1 - RAW XML: edgar.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.EX-24 (POA)
<SEQUENCE>2
<FILENAME>ex24mercado.txt
<DESCRIPTION>EXHIBIT 24 - POWER OF ATTORNEY
<TEXT>
Document 2 - file: ex24mercado.txt

</DOCUMENT>
</SEC-DOCUMENT>