Bergs Heating and Air Conditioning, based in Sierra Vista, Ariz., has been in the heating, ventilating and air conditioning industry for more than 35 years. The company is family-owned and operated and services all makes and models of air conditioners in the residential and commercial markets. Bergs is a Puron Refrigerant specialist and also provides installation and replacement services. Its products include gas furnaces, central air conditioners, heat pumps, fan coils, packaged products, thermostats, zoning products and indoor air quality products. Bergs Heating and Air Conditioning also offers free estimates, planned service agreements, custom designed sheet metal and a radio assisted 24-hour emergency service..