Expert HVAC Services Serving
Missoula & the Bitterroot

Now Scheduling Winter Maintenances!

Locally owned logo. Thirty plus years serving you.

A Personalized Approach…

Design Air is dedicated to providing the best possible service for you and your family. You can count on us to provide you with a system and solution that fits your family’s unique needs. No matter if you are in need of a repair, replacement, annual maintenance, or an entire HVAC system for a new home, the team at Design Air is here to help.

  • Locally owned & Montana grown.
  • 30+ Years serving Missoula & surrounding areas.
  • Friendly & experienced team members.
  • Personalized approach to solutions with attention to craftsmanship.
  • Professionally training to meet North American Technician Excellence (NATE) standards.
  • Safety First background checked & drug tested.
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Trusted
Service

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Trusted
Service

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Satisfaction
Guarantee

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Honest
Estimates

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Expert
Technicians

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Quality
Equipment

Our Customers Say It Best

“We are very satisfied with the maintenance Kyler did for our 3 gas fireplaces. They are all different models and ages. (One of them is over 25 years old). Two of them are located in our Airbnb units, and he left everything spotless when he was done. He also showed me how to sync the newest one to the remote when we change the batteries…which I had forgotten how to do. Excellent service. Thank you!”
- Caryn L. |

“Just had my furnace tuned up by Nathan, and once again, he did a fantastic job. I always feel better going into our cold winters knowing that my furnace is in great shape to keep my family warm no matter how cold it may get.”

- Sharon S. |

“September. Fall is in the air, back yard apples are about ready to be picked, and … annual maintenance for furnace and air conditioner. Thanks Design Air and Kyler for your reliability and good service.
John and Valerie”

- John H. |

Breathe Easy

Your health is one of your most valuable assets, and the air you breathe plays a crucial role in protecting it. Indoor air quality is often overlooked, yet it significantly impacts your overall well-being. With so much time spent inside and seasonal challenges like allergies and wildfire smoke, maintaining clean air in your home or business is more important than ever. The right air filtration system can dramatically improve air quality, offering both immediate comfort and long-term health benefits. But with so many options, how do you choose the right one? That’s where we come in. Our team focuses not just on airflow, but on delivering clean, healthy air you can trust.

Join Our Team of HVAC Experts

Design Air
Protection Program

Regular maintenance is the #1 way to boost efficiency, extend equipment life, and catch issues before they lead to costly repairs. Our expert team ensures your heating and cooling system runs safely and smoothly year-round.
Discover our maintenance program  options today - and enjoy peace of mind tomorrow!

Financing to
Fit Your Budget

Financing your HVAC repairs or replacement offers a convenient way to stay comfortable without straining your budget. With flexible payment options, you can address urgent heating or cooling issues right away while spreading the cost over time. This allows you to upgrade to a more energy-efficient system, potentially lowering your utility bills and increasing your home’s value—without the stress of a large upfront expense.

Transitioning Your Heat Pump Use Between Seasons. Close-up of black full inverter heat pump outside in the garden.

Transitioning Your Heat Pump Use Between Seasons

One reason Montana homeowners love heat pumps is that they function as an all-in-one heating and cooling unit.

Hot and Cold Spots? Get Even Heating and Cooling in Your Missoula Home. A wall-mount mini-split heating and air conditioning unit installed in a new house.

Hot and Cold Spots? Get Even Heating and Cooling in Your Florence Home

Inconsistent heating and cooling are common problems that can affect your comfort and increase your energy bills in Missoula.

Installing New HVAC Equipment? Consider These Tips! Satisfied master installer smiles at the camera after mounting the outdoor air conditioner.

Installing New HVAC Equipment? Consider These Tips!

Few systems play as crucial a role as your heating, ventilation, and air conditioning (HVAC) system when it comes to maintaining a comfortable and efficient home environment.

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