Mark's Heating & Cooling is your local Tempstar dealer, serving the Bismarck-Mandan area since 1989. After over 20 years in business, our customers particularly value our outstanding service and committment to quality. We specialize in repair and installation of furnaces, air conditioners, ground source heat pumps, air cleaners, humidifiers, zone dampers
Dale Bohl —
It was great, very professional, informed us about the problem and fixed it promptly.
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