<SEC-DOCUMENT>0001193125-18-322545-index.html : 20181108
<SEC-HEADER>0001193125-18-322545.hdr.sgml : 20181108
<ACCEPTANCE-DATETIME>20181108161017
ACCESSION NUMBER:		0001193125-18-322545
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20181108
DATE AS OF CHANGE:		20181108
EFFECTIVENESS DATE:		20181108

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WATSCO INC
		CENTRAL INDEX KEY:			0000105016
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-HARDWARE & PLUMBING & HEATING EQUIPMENT & SUPPLIES [5070]
		IRS NUMBER:				590778222
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-228269
		FILM NUMBER:		181169760

	BUSINESS ADDRESS:	
		STREET 1:		2665 S BAYSHORE DR
		STREET 2:		STE 901
		CITY:			COCONUT GROVE
		STATE:			FL
		ZIP:			33133
		BUSINESS PHONE:		305-714-4100

	MAIL ADDRESS:	
		STREET 1:		2665 SOUTH BAYSHORE DR, STE 901
		CITY:			COCONUT GROVE
		STATE:			FL
		ZIP:			33133
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>d651717ds3asr.htm
<DESCRIPTION>S-3ASR
<TEXT>
Document 1 - file: d651717ds3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d651717dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: d651717dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>d651717dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: d651717dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g651717g01x26.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g651717g01x26.jpg

</DOCUMENT>
</SEC-DOCUMENT>