Watsco to Present at the William Blair 30th Annual Growth Stock Conference

COCONUT GROVE, Fla.–(Business Wire)–
Watsco, Inc. (NYSE:WSO) announced today that Barry S. Logan, Senior Vice
President, is scheduled to present at the William Blair 30th Annual Growth Stock
Conference being held at the Four Seasons Hotel in Chicago, Tuesday, June 15,
2010 at 1:30 p.m. (CDT). Internet users can listen to a live webcast of the
presentation on the William Blair website
athttp://www.wsw.com/webcast/blair36/wso/ or at the Investor Relations section
of Watsco`s website at http://www.watsco.com.

Watsco is the largest distributor of air conditioning, heating and refrigeration
equipment and related parts and supplies in the HVAC/R industry, currently
operating 508 locations serving over 50,000 customers in 36 states, Puerto Rico,
Latin America and the Caribbean. According to the U.S. Department of Energy,
heating and cooling account for about 56% of the energy use in a typical U.S.
home. The products we distribute can dramatically increase the efficiency of a
home`s HVAC system, saving homeowners money on their energy expenses and
significantly reducing the emissions of greenhouse gases. Additional information
about Watsco may be found on the Internet at http://www.watsco.com.

Watsco, Inc.
Barry S. Logan, Senior Vice President, 305-714-4102
blogan@watsco.com

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