Bay Air Systems has been a leading full-service HVAC Contractor for over 25 years. We offer a wide range of services that cover the gamut of your Heating, Ventilation, and Air-Conditioning needs. Our corporate office is located in the San Francisco Bay Area with an additional location in San Diego and technicians located conveniently throughout the state. Since 1981, our company has specialized in commercial and industrial projects. We have experienced steady growth while supplying innovative, cost-effective solutions to HVAC construction design, service, maintenance, operating problems, and energy management. Our goal is to exceed expectations and generate long-term value. ...Building Confidence ® - with Bay Air Systems.