New Construction HVAC Contractors St. Louis

Design Aire’s new construction division provides comprehensive fabrication and installation using HVAC comfort systems for both commercial and residential projects. Let us put our expertise to work for you!

   Contact the Heating & Cooling Experts of St. Louis & St. Charles: 314-739-1600

Contact the Heating & Cooling Experts of St. Louis & St. Charles, MO:


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Design Aire provides high quality heating and cooling systems for major builders in St. Louis, St. Charles, and the surrounding metropolitan areas. Tens of thousands of area homes enjoy the comfort of a duct system designed and installed by our Union sheet metal craftsmen.

Our St. Louis HVAC company specializes in single family subdivisions, multisystem custom homes, and multifamily apartment projects. We have an experienced staff of engineers capable of designing your HVAC system, and we can both fabricate and install the systems.

Our end-to-end services can’t be beat. Take a look at the types of projects we provide!

New Construction HVAC Fabrication

If you are having a home built, Design Aire can help with new home HVAC services from start to finish. We have engineers adept at designing systems that work with your home build, and your satisfaction is our utmost priority.

A whole-home design build includes numerous considerations such as load calculations. Our team is prepared to do what we can to make sure your system operates effectively that follows a well-planned framework based on our blueprints.

After the final approvals occur for us to move forward with our design, our team can fabricate and install the HVAC system using architectural sheet metal, often referred to as flashing or copper work.

While you as the homeowner will likely see very little of the system in your fully designed home, you’ll know the difference a well-built, quiet, and efficient HVAC system can provide during the hottest summer days and the chilliest of winter blizzards.

Multi-Unit HVAC Installation

No matter if you are building dorms, senior living communities, or multi-family units like town homes, condominiums, or apartments, we can provide full-service HVAC system design, fabrication, and installation during the construction process.

Getting your HVAC system done right the first time is crucial, as delays in your build or problems later can be costly. Builders have trusted Design Aire with new construction HVAC projects for decades. Give us a chance to show you our expertise at work.

Why Choose Design Aire

  • Numerous Service Awards – We have been recognized time and again for excellent service, both by customers and our peers.
  • Quality Customer Service – Our customers come first—always—and we stand by our work. We will bring this same can-do attitude to your new construction project.
  • Familiarity with All HVAC Makes & Models – If you have a preferred system of heater or furnace, we can help! We are trained in servicing all types of equipment, and installation is no problem with any system you might want to use for the new build.
  • Trane Partner & Service Provider – As the #1 Trane dealer in the Midwest, our team has more training and experience with Trane systems than any dealer in the area and quantity discounts on Trane equipment, so you receive the best equipment and installation at a reasonable price.

Contact Design Aire for Full-Service New Construction HVAC Service

For high-quality, full service HVAC services for new construction projects of any size, contact the team at Design Aire 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:

Get Wells Fargo Financing ApplicationGet Wells Fargo Financing Application

Types of New Construction Projects:



Senior/assisted living


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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.

Contact the St. Louis & St. Charles, MO Heating & Cooling Experts

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