Expert St. Louis Heating & Cooling Services at a Fair Price

Dunn Heating & Cooling is an award winning residential and commercial heating and air conditioning company committed to providing our customers with the finest professional service, installation, maintenance and indoor air quality at a fair price.  We are your whole home comfort and energy performance team.

Our well-trained technicians excel at service of existing equipment, installation of new equipment, and preventative maintenance checks. We pay close attention to your comfort needs, helping find ways to increase your safety, reduce energy bills, and keep your air clean and healthy all year round. Dunn Heating & Cooling is known for:

✓  Fast, friendly service and repairs
✓  Complete system installation
✓  Free estimates and second opinions
✓  Preventative maintenance plans

From heating and cooling equipment installations, repairs and maintenance, to whole-house indoor air cleaning, we’re here to help. For the expert advice and exceptional service that keeps your comfort level high and your indoor air clean and safe, count on the team at Dunn.

Our St. Louis Heating Services:

Furnace repair, heating installation and furnace maintenance and tune-ups.

Our St. Louis Air Conditioning Services:

Air conditioner repair, AC installation and AC maintenance and tune-ups.

Service Areas:

Although we serve the entire Greater St. Louis area, we visit these areas most often: Chesterfield, Oakville, Wildwood, Ballwin, Mehlville, Kirkwood, Maryland Heights, Webster Groves, Affton, Manchester, Lemay, Creve Coeur, Clayton, Crestwood, Town and Country, Richmond Heights, Ellisville, Ladue, Des Peres, Sunset Hills, Brentwood, Olivette, Shrewsbury, Valley Park, Glendale, Rock Hill, Fenton, Frontenac, Warson Woods and Huntleigh.