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

Clayton, MO HVAC Contractors

Quality HVAC service is not a luxury; it is a necessity. If you want to protect yourself from the harsh cold of winter, you need a solid furnace in your home. And when the summer temps reach up into the 90s and higher, you need to know your home air conditioning unit is up to the task. Design Aire is proud to provide the best possible service, you can count on us to keep you comfortable in every season!

   Contact the HVAC Experts of Clayton: 314-739-1600

Contact the HVAC Experts of Clayton:


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HVAC Services Clayton, MO

We offer a full range of services all at a price you can afford, from reliable AC repair and maintenance to the replacement of existing units and installation of brand new ones.

No matter where you live in the Clayton area, we are always here to help. Whether your furnace stops working or your air conditioning unit just cannot keep up with the demands of the summer heat, we can provide the service you expect at a price you can afford.

We also offer services for new construction, so local contractors can get their new developments off to a great start. And if you are building your own home in the Clayton area, we can work with you to develop the right HVAC plan, one that includes an air conditioning unit that can handle the hottest days of summer and a top-notch furnace that can stand up to the coldest winter conditions.

Clayton, MO Furnace Repair

If your furnace is acting up on the coldest night of the year, we are always here to help. Our extensive expertise and years of experience allow us to diagnose common, and not so common, furnace problems quickly, so you can enjoy that soothing flow of warmth as soon as possible.

AC Repair Services Clayton, MO

You can rely on our experts to help your AC fight the heat of summer and keep you cool all season long. Our Clayton air conditioning repair services are available whenever you need them, so you do not have to worry about keeping your cool.

HVAC Replacement & Installation

For top-quality furnace and air conditioning installation, look no further than Design Aire. Our years of experience in HVAC installation allow us to provide the best possible service to our Clayton homeowners and business owners.

When maintenance and repairs are no longer enough and it is time for a new furnace or AC unit, our technicians have the expertise to make your space comfortable once more. Our Clayton furnace installation and AC installation skill cannot be beaten!

Ductless Heating & Cooling Solutions

Installing a new heating and air conditioning unit is no small task, and a lack of existing ductwork just makes it harder. If you need a new HVAC unit but do not like the idea of tearing apart your walls, our ductless systems could be just what you are looking for.

We offer ductless heating and cooling solutions from top manufacturers, so you have your choice of Trane or Mitsubishi. Each manufacturer offers a host of benefits, along with lower operating costs and years of reliable service.

Contact us for Clayton HVAC Services

No matter how large or small your need, we are dedicated to the comfort of our friends and neighbors throughout the Clayton area. We even offer whole-house HVAC solutions, so you can stay comfortable all year long.

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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:

Get Wells Fargo Financing ApplicationGet Wells Fargo Financing Application

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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