HVAC Dealer in Maryland Heights, Missouri
Design Aire Heating and Cooling





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Company Details:
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Maryland Heights, Missouri
Design Aire is a fourth generation family company, and one of the most prominent Trane dealers in the Midwest. They have been installing and servicing comfort systems for 114 years, and take great pride in keeping our customers happy. Design Aire has an A+ rating and won the prestigious Torch Award from the Better Business Bureau because of "exceptional ethical business practices and customer service." They have also received four consecutive St. Louis Top Workplaces Awards and were voted the "Best Heating And Cooling Company" by the readers of the St. Louis Post-Dispatch.
Established in 1904, Design Aire is a full-service residential air conditioning and heating company serving the entire St. Louis and St. Charles region. Design Aire is not only the largest residential Trane dealer in St. Louis and St. Charles, but the largest in Missouri and the surrounding states. Design Aire has more training and experience with Trane systems than any dealer in the area. Design Aire's loyal customer base continues to grow every year because we recognize that area homeowners want to use quality contractors that they can trust.
Contact us today to find out what makes Design Aire different.
Areas of Expertise
- HVAC repair
- HVAC service
- AC installation
- Furnace installation
- HVAC cleaning
Dealer Services and Features

- Trane Comfort Specialist A Trane Comfort Specialist™ is an independent Trane dealer committed to being the best in installation, service, customer satisfaction and employee training.
- 24/7 Emergency Service Available 24/7 for emergency service.
- Wells Fargo Financing
- NATE Certified North American Technician Excellence (NATE) certified, the top accreditation for HVAC technicians.
- Diagnostics Diagnostics Dealers are equipped to remotely access critical system data (with your approval) to help keep your system operating at peak performance.
Warranty & Registration
After getting a new system, be sure to protect it with a warranty.
Owner’s Manuals
Learn more about your product, like its technical specs and innovative technology.