Comfort Systems USA Southwest

Since 1962, Comfort Systems USA Southwest, formerly Tri-City Mechanical, has been providing Arizona with HVAC service and maintenance to commercial, and low-temp clients. Additionally, we offer indoor air quality testing and remediation, as well as HVAC

preventive maintenance service. Furthermore, we service all makes and models of HVAC equipment. Our service area...

Since 1962, Tri-City Mechanical has been providing Arizona with HVAC service and maintenance to residential, commercial and low-temp clients. Additionally, Tri-City Mechanical offers indoor air quality (IAQ) testing and remediation as well as HVAC preventative maintenance service. Furthermore, we service all makes and models of HVAC equipment. Our service area encompasses most of Southern...