About AG Heating & Air Conditioning For as long as people have lived in Southern California, they have had a need for quality home air conditioning and HVAC care. Our hot, dry summers and desert-like conditions can be unbearable without some relief, and with the explosion in population in the 1950s came increased demand for quality home and commercial heating and air conditioning services. At AG Heating & Air Conditioning, we've served Southern California and the surrounding communities since 1989. We started small, like many companies do, but our dedication to high quality service at an affordable price remains unwavering. As our success continued, we have been able to expand throughout the Southland, and today we offer services to every community in the greater Southern California area. We've seen the industry change and our highly trained personnel have kept up with every step of the way. As a result, we can offer you the very best service for installing, repairing and maintaining your heating, cooling and indoor air quality products. Contact us today and let us show you what we can do!