Averill Heating and Air Conditioning is a locally-owned full service and heating and cooling company in St. Louis and the surrounding area. We specialize in. St. Louis HVAC service, including air conditioner installation, furnace repair in St. Louis, and heating installation. Having been in business since 1973, the credibility that Averill Heating and Air Conditioning brings to your door is unmatched. We will treat your repair or installation job like it's for our own home. Whether the job is St. Louis furnace repair, or a St. Louis heating and cooling system, HVAC installation, or an emergency AC repair, Averill Heating and Air Conditioning is your go-to service provider. We're ready to provide heating and cooling service for your St. Louis HVAC needs, day or night.