Design Aire Heating & Cooling

Design Aire Heating & Cooling has provided heating and cooling work in the St. Louis area since 1904. The company installs, maintains and repairs air conditioners, furnaces and boilers, and it is a Trane dealer that also sells Mitsubishi ductless systems, heat pumps, air handlers, humidifiers and air purifiers. Commercial work and indoor air quality services such as air duct cleaning are part of the lineup.

Customers can request a free estimate or call for emergency service, and the company offers preventative maintenance plans for cooling and heating systems. Design Aire has its main office on Harley Drive in Maryland Heights, with additional locations in St. Louis and O'Fallon. Its service areas include St. Louis and St. Charles, and the company also offers financing and utility rebate guidance.