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Design Aire Heating & Cooling - the top HVAC company in St. Louis - yard sign in front of a home

Contact the Friendliest Heating & Cooling Experts in the St. Louis & St. Charles Areas

Please don’t hesitate to get in touch–we’d love to hear from you!

Design Aire Heating & Cooling

Fax: 314-739-3454

2550 Harley Dr.
Maryland Heights, MO 63043

5804 Hampton Ave
St. Louis, MO 63109

103 Church St.
O’Fallon, MO 63366

Hours of Operation:
Monday – Sunday
8:00 AM – 9:00 PM

Send Us a Message or Request. We are eager to hear from you.
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