Our History

Comfort Systems USA, Southwest (CSUSA SW) began serving Arizona customers in 1962. The company shifted its focus from residential to commercial mechanical contracting and service in 1976. In 1990 CSUSA SW added the Design-Build component to its commercial focus. In 1997 Comfort Systems USA, Southwest was one of twelve companies from around the nation that joined together to form Comfort Systems USA.

Today, Comfort Systems USA is recognized as a premier national provider in the installation and service of heating, ventilating, air conditioning, plumbing, piping and related services. CSUSA SW is a leading provider of these same services in Arizona. We offer single source Design-Build-Maintain services to meet all of your mechanical system needs.