Maryland Heights, MO HVAC Contractors

Every homeowner will need heating or cooling services sooner or later. Design Aire is a well-respected heating and cooling company established more than 100 years ago, and we have been serving Maryland Heights and the Midwest in general during that time. We are a small family-owned and operated company, and we are dedicated to providing personal attention to our customers. We have earned a reputation for commitment to customer satisfaction and technical excellence.

   Contact the HVAC Experts of Maryland Heights: 314-739-1600

Contact the HVAC Experts of Maryland Heights:


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​HVAC Services Maryland Heights, MO

“HVAC” stands for heating, ventilation, and air conditioning. Design Aire has received a number of recognitions and awards for the quality of HVAC services we provide, including the Angie’s List Super Service Award for consistently outstanding customer service; the Better Business Bureau BBB Torch Award for exceptional ethical business practices and customer service; and the Trane Golden Compressor Award for the number one Trane dealer in the Midwest.

Maryland Heights, MO Air Conditioning Repair

Air conditioning repair is an important service during the hot, muggy Midwest summers. If your AC unit is not performing at top capacity or stops working completely, our knowledgeable technicians can help. We can quickly diagnose the problem and make the necessary repairs so your home can be cool and comfortable again. We pride ourselves on doing a good job at a fair price and treating our customers right.

AC Repair Services

Maryland Heights, MO Furnace Repair

Winters are unpredictable in our region. Keeping your home comfortably warm when the temperature plummets are important to the health and well-being of your family. If your heater is making unusual noises, has reduced airflow, is blowing cold air, or frequently cycles from off to on, call our office to schedule a service call.
Our technicians have the knowledge and experience to quickly diagnose the problem and perform the needed repairs. They are not only skilled in HVAC services but are also honest, transparent, and trustworthy.

Heater Repair Services

Maryland Heights, MO Air Conditioning Installation

If your AC unit has stopped working, our knowledgeable technician can tell you if it is repairable or requires replacement – with honesty. Air conditioners do not last forever, and it may be time to replace your unit. Our technicians can provide and install a new Trane air conditioning system that is not only more reliable than your old unit, but far more energy-efficient. Our company has more training and experience with Trane air conditioners than any other HVAC company in the Midwest.

Air Conditioner Installation

Maryland Heights, MO Heating Installation

Old furnaces wear out over time and become less efficient. At some point, an older furnace will fail completely. If this has occurred in your home or business, our trusted technicians can install a new, energy-efficient Trane furnace to get your home back to a comfortable temperature.

Furnace Installation

​​Contact us for all of your HVAC service needs!

Our most valuable asset at Design Aire is our team. Our technicians are knowledgeable and experienced, and they have pride and dedication in doing their jobs right. You can rely on us for timely service, accurate diagnostics, and skillful repairs and installations of heating and air conditioning systems in Maryland Heights. Contact us today to discuss HVAC services today!

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Financing is provided with approved credit by Wells Fargo Bank, N.A., an Equal Housing Lender.
Design Aire offers special financing with approved credit with this secure application:

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Customer Testimonials

Seth was our salesperson. He listened to our needs and provided the right product at the right price. The installation team arrived on time and went right to work.They worked with confidence and professionalism.We appreciated the care in protecting our floors and even the choice of how they went up on the roof indicated that they really did care. This company did what they said they would and certainly has our vote of appreciation and gratitude. We will happily recommend Design Aire to anyone.

Ken L.

One of the best companies to work with. My own profession is in a service industry and so I very much appreciate all the positive things about Design Aire.
The install crew arrived right on time and took exactly how much time they said they would to complete the job. The work was done well, the crew cleaned up after themselves, and were very pleasant. Seth in the office was extremely in-tune to our needs and very responsive.
I would highly recommend Design Aire.

Heather H.

Our new HVAC system was installed yesterday and we could not be happier. From quote to completion the process was great! 100% would recommend!

Greg H.

We have used Design Aire for both a new furnace two years ago and a new AC unit this summer. Everything was done very professionally and quickly. I would not hesitate to recommend them to anyone needing any type of HVAC work done.

Sean K.

Design Aire was the best choice from start to finish. Design Aire gave me the best price with the most detailed quote. The service technicians were very friendly and completed the job ahead of time. I highly recommend Design Aire.

John K.

We've used them for our old house and our new house. They are honest, friendly, professional and affordable. We felt lucky to find them.

Maddy R.

I was very impressed with Design Aire. They were timely and did an outstanding job with the installation of my new furnace. They had great communication and went above and beyond. I would highly recommend them to friends and family. Thank you so much Seth and Design Aire for making this an effortless transaction. VERY PLEASED!

Jonny M.

Design Aire sent a salesman to plan the system, and just a couple of days later sent the installers to remove the old system and install the new one. Everything happened when they said it would and the system performs as they said it would. All of the Design Aire staff were courteous, the work was performed efficiently and neatly, and they left the area cleaner than they found it. This is the second unit Design Aire has installed for us, and I have no need to look elsewhere.

Dan L.

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