Welcome to American Air Heating and Air Conditioning. In Fort Collins and the surrounding area, we've been serving Northern Colorado's air comfort needs for over 30-years, specializing in the most innovative and trusted brands in the world.From South Longmont to Cheyenne, Estes Park to Greeley, American Air is ready to cater to all your heating and air conditioning needs. Whether you need a repair or are ready to upgrade to the latest energy-efficient systems, our experienced and highly-trained staff will make sure that you can live in worry-free comfort every day of the year.