Haugan Heating & Air Conditioning, Inc. offers complete HVAC system service in Sioux Falls, SD and the surrounding areas. We offer both residential and commercial HVAC services, including 24/7 emergency service for your time of need. Services include furnace repair, heating installation, air conditioning installation, air conditioning repair, custom ductwork, and more. Plus, our HVAC technicians are experienced with humidifiers, air purification systems, and ventilation systems. We always work with top manufactures such as Coleman, Aprilaire, and iWave to make sure you're getting the best products. If you need an air conditioning or heating contractor, call Haugan Heating & Air Conditioning to discuss our services and get a free estimate.