Design Aire
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Design Aire
We're glad you found us. There are hundreds of heating and air conditioning companies in the Greater St. Louis area, and they can all start to look pretty similar. Design Aire is not more of the same. Design Aire's reputation as the best HVAC Company in the St. Louis Metropolitan area is the result of our dedication to customer satisfaction and unparalleled technical excellence.

Design Aire service technicians have an average of over 26 years of experience in the industry. They receive continuing professional education courses each year so you can be assured that your technician is not only experienced but also expertly trained. In addition, our representatives are background-checked and drug-tested so you can feel comfortable with Design Aire in your home.

Our technicians provide HVAC services including furnace repair, furnace installation, ac installation, and ac repair. Additionally, we service for boilers, heat pumps, ductless mini-split, and geothermal heat pump systems. Contact us or give us a call today (314) 739-1600 to schedule your service appointment.
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We are the words of our founder, Frank Fischer, who always said, "Do a good job at a fair price and treat people right." We do business by those simple words. We are not misleading advertising. We will never promise unbelievable, low prices or free furnaces just to get our foot in your door - those "bait and switch" tactics are a sign of desperation.
In 1904 our founder, Frank Fischer, started our family's company with the motto, "Do a good job at a fair price and treat people right." In 1904, Frank "Pappy" Fischer started his own hot water and steam heating business. He worked out of his home in South St. Louis. Pappy had the material delivered directly to the job and took the streetcar with his tools.
With over 100 years in business, Design Aire technicians can put their extensive resources and knowledge to work for you, guaranteeing swift results for the repair and maintenance of your air conditioning system. As you know, Missouri weather can get extreme with summer temperatures climbing into the 100s.
When you need reliable air conditioning repair services, come to Design Aire! Our technicians have been helping customers in the St. Louis area with AC unit repairs for decades and stand by the values upheld by our founder, Frank Fischer, by providing high-quality service at an affordable price. It's inevitable that AC units tend to give out on hot, humid Missouri days when you need them most.
Keeping your air conditioning system running well for many years means taking the right steps to maintain its functionality. When you work with an experienced A/C company that offers regular maintenance, you can rest assured your system will run well without interruptions for its full lifespan.
Reviews (17)
Jody Bacot
Jody Bacot
Dec 30, 2021
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Best heating / AC service I've ever had- strongly recommend- Steve, the tech was outstanding and was very honest- prior company was going to charge me for a new unit- Design Aire fixed unit for $600 and its like brand new
Services: Heating system installation, Heating maintenance
Linda Morris
Linda Morris
Dec 29, 2021
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Positive: Professionalism, Quality, Responsiveness
Josh did a great job fixing my heating unit. Came on Christmas Eve.
Service: Heating system repair
Barret Jackman
Barret Jackman
Dec 27, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Klint was very thorough and a really nice person. Wouldn’t hesitate to have him back in my home.
Service: Heating maintenance
Bill Weinberg
Bill Weinberg
Dec 22, 2021
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Did super job with new furnace. Time friendly answered all my questions cleaned up before leaving five stars.
Ken Prudhomme
Ken Prudhomme
Dec 20, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness
This is our first time using this company, the service technician was very prompt, professional, and explained the services available for maintenance. Our inspection was for the heating system and he was very knowledgeable,patient and did not make me feel hurried. Mr. Tony Z..is Z BEST!!
Services: Heating maintenance, AC maintenance
Catie Stricker-Howell
Catie Stricker-Howell
Dec 04, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Always professional! They have done work at our home and business. They respect your home, clean up and do what they say needs to get done. Trust them t ok get the job done in a quick and timely manor.
Service: Heating maintenance
Kelly Couteranis
Kelly Couteranis
Dec 02, 2021
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Positive: Professionalism, Punctuality, Quality
We will be requesting Josh S, for the spring maintenance on our system highly recommend the biannual maintenance. We have been doing so for the last 23 years and our heater remains in great shape!
Service: Heating maintenance
Angela T. Westerfield
Angela T. Westerfield
Nov 22, 2021
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My heat was running cold they came out twice first time paid them 75$ was out here less than 30 minutes with a diagnostic and fix. Within an hour running cold again. Call back next tech wants an additional $75 diagnostic no sir. He tells me he’s on time and a half regular business hours or Monday Through Friday blah blah blah . No sir one of your… co workers just left here not two hours ago I’m not paying time and a half or waiting until regular business hours on Monday. So he says you’ll have to pay ok I’m fine with that. So he comes out there for hour and a half
Linda Kasper
Linda Kasper
Nov 10, 2021
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Rick from Design Aire did a great job! He arrived earlier than expected also very knowledgeable. He explained what he was doing and was friendly. I was very pleased with the service he provided. I will definitely request him when I call Design Aire for any future needs.
Roxanna Cooper Swanson
Roxanna Cooper Swanson
Nov 10, 2021
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I have used Design Aire several times. The office staff is very knowledgeable, professional, and courteous. The same goes with the technicians. Yesterday Josh was here to service the furnace. He was prompt and thorough. Luckily the furnace was operating properly. I feel like this company is honest in their evaluations and will continue to use them.
Matt Merrick
Matt Merrick
Nov 04, 2021
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Design Aire is the only company I will use. They have fixed different issues I’ve had on multiple occasions. They are very responsive and quick to arrive. They always arrive on time and their guys are super friendly and really knowledgeable. I highly recommend Design Aire and their technicians.
Molly Bozak
Molly Bozak
Nov 03, 2021
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I don’t usually take the time to leave reviews but I was so happy with my service from Patrick! I called on a Friday morning and had a visit by Friday afternoon. We needed a new motor for one of the furnaces, and while Patrick waited for it to be delivered from the shop he cleaned and tuned both furnaces as a courtesy. Very professional, great service. Thank you!
Tom Bullock
Tom Bullock
Nov 02, 2021
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Design Aire was able to take care of my heating issue the same day I called them. Josh S and the person who took my call were cordial, friendly, and gave me confidence I chose the right company to fix my furnace. Great experience overall and would recommend them to anyone. Also, the cost was less than I expected. Kudos to the team at Design Aire!
Sheri Kanterman
Sheri Kanterman
Oct 27, 2021
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Prompt, professional and personable service! Fixed our furnace efficiently and quickly and the cost was less than the estimate! Amazing company!
We also had our other furnace replaced and the team was very knowledgeable and had my new furnace installed and working perfectly in a little over three hours. And the technician that replaced our furnace is the one in the picture! He was very kind, personable and professional! Highly recommend Design Aire!
Jack Witte
Jack Witte
Oct 16, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
I was impressed with Design Aire at all levels of their business. Most important though, the installer did an awesome job putting in a new furnace and AC unit. Would highly recommend them!
Services: Heating system installation, AC installation
Tom Bullock
Tom Bullock
Oct 16, 2021
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I had an issue where my electric pilot light decided not to work. I called Design Aire at 9:45 am and they were at my door within a few hours. The technician Josh S, was great. He was able to fix my issue within minutes and I had heat in no time. The repair cost was less than I expected. The whole experience was pleasant and without any issues. I recommend them wholeheartedly.
Gail
Gail
Sep 03, 2021
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Called for service on my A/C unit and they were here and repaired the problem the same day. Thank you to the whole team and especially to our technician Rick who did an awesome job!
We have been using Design Aire for years for both heating and cooling and have not had any problems at all. We highly recommend them!