Founded in 1939, Goettl Air Conditioning is a privately, locally owned, fully licensed and insured heating and cooling contractor. It services and installs all brands of residential and commercial heat pumps, air conditioners and gas and electric furnaces, as well as a wide range of energy-saving devices and indoor air quality products. Today, Goettl is the oldest air conditioning contractor in the Valley of the Sun. In addition to air conditioning, Goettl also installs and maintains air filtration systems; whole-house humidifiers; carbon monoxide alarms; fresh air exchangers; UV sterilizers; and provides duct cleaning all in the name of clean air and cost efficiency. Goettl Air Conditioning maintains offices in Tempe, Ariz.