Air conditioning service.

Design Air is your #1 HVAC contractor in Missoula, MT and the surrounding communities. We are the leading company for all of your air conditioning needs. If you need repairs, maintenance, or a brand new system installed, the technicians at Design Air are the qualified and professional crew for the job.

We provide the highest quality service for your air conditioner. We also aim to educate and inform our customers. Informed decisions are good decisions. We want you to feel confident we are qualified to perform the service for which you are hiring us.

How Much Money Can a New Air Conditioner Save You?

Our SEER energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit's SEER value and compare it to a newer, more efficient system. You can even customize it to better match your home's system for a more accurate calculation.

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Air Conditioning Basics

The four main components to your air conditioner are:

Condenser: The condenser is the outside metal unit and where the gas from the compressor is condensed into a liquid. The gas entering the condenser is very hot. The temperature is then lowered, so the gas can convert back to a liquid.

Compressor: The compressor is inside the condenser. It circulates the pressurized refrigerant, to concentrate the heat, and changes the low pressure gas to high pressure.

Evaporator: The evaporator is the part of the system inside the home. In simple language, it absorbs the heat from your home.

Expansion Valve: The expansion valve controls the amount of refrigerant in your system.

All of these pieces are connected by a copper tube that handles refrigerant, creating a closed loop. Heat is collected in the evaporator, sent outside to the condenser. The heat is removed, and the cool air is recirculated back into your home.

AC Facts

An Air Conditioner Doesn’t Create Cool Air.
What happens in the AC process is actually the removal of heat from the air. Your AC uses a chemical called refrigerant to remove heat and transfer it outside. The warm air runs through the lines and coils in your unit and goes from liquid to gas and back again. During this process, the refrigerant removes the heat and transfers it elsewhere so that when the air comes out the other side, it is cool.

Your AC Will Remove Humidity.
Lower humidity helps the overall comfort level in your home by making you feel cooler, even if the temperature is the same.

Your Air Filter Needs To Be Checked And Replaced Frequently.
(depending on the manufacturer’s recommendations)
A dirty air filter restricts your air flow, which reduces efficiency, costing you money, and over time can put stress on your unit and could cause a costly repair. During cooling season especially, your system requires more air flow to prevent freezing. We recommend replacement of a 1-2" filter every 4-6 weeks during heavy cooling season and a 4-5" filter every 6-12 months.

Maintenance, Maintenance, Maintenance.
Your air conditioner needs regular checkups to keep it running in tip-top shape. Having regular annual preventative maintenance will bring your system longer life and fewer breakdowns over all.

The Seasonal Energy Efficiency Ratio (SEER) measures air conditioning and heat pump cooling efficiency, which is calculated by the cooling output for a typical cooling season divided by the total electric energy input during the same time frame. A higher SEER rating means greater energy efficiency.

At Design Air, we provide all the services you need to keep your AC running in top-notch shape. Call us at 406-251-7997 for repairs, maintenance, or new-system installation.

Air Conditioner Installation in Missoula, MT 59804

“Super happy with our new A/C system. Tristan and Cody showed up right on time, were friendly and respectful, and worked their tails off to install a complex system very quickly. Very happy with their work and the new system. Will recommend Design Air to others!!” – Dan M.
'- Dan M.

Air Conditioner Installation in Missoula, MT 59801

“The Design Air crew came out to set up central air in our house during the middle of COVID-19 and it was a wonderful experience. They were respectful of our space, efficient, and thorough. This is my first time having central air in my house and the technicians were great about explaining what they were doing and why, showing me how to program the thermostat, etc. I highly recommend this business.”

– Melanie S.

'- Melanie S.

Air Conditioner Installation in Missoula, MT 59803

“Installation done well and carefully checked. Knowledgable and careful workers. My air conditioner works well and quieter, and cool air is now flowing evenly throughout the house. Design Air, Inc., is an excellent heating/air conditioning service. They are prompt, efficient and get the job done. Try them!”

– Anita L.

'- Anita L.

Air Conditioner Installation in Missoula, MT 59803

“We asked Design Air Inc to provide a proposal for our large 5-bedroom home in Missoula. An appointment to look at the house was set up immediately. Mike & Doug came out to inspect the house and do their research in order to match the right AC unit to the overall design, square footage, etc. The dollar figure was far more reasonable than I had expected. I agreed, all parts were ordered straight away and the project started within a couple days.

Installing a new AC unit is a big job and involves a lot of work and planning. It took Tristan Alexander and Griffin Pluth only 2 days to get it all done. We were impressed! These 2 young guys really knew their stuff. Furthermore, they were super friendly, respectful, wore their COVID-19 masks at all times, and explained every step of the way what they were doing. All we had to do was get out of their way and hang on! I hope they are both promoted soon, as they should be. I asked for a new thermostat; it was installed properly and configured exactly the way we wanted it; all options were presented and explained thoroughly.

We now have a great AC unit, and it works perfectly. Design Air, Inc., was fast, efficient, very reasonable in price, and they have the right people working for them, to include office personnel and people working in the field. All of them, extremely professional and friendly; and I like that. In my mind, this company is tops all around and cannot be beat!”

– Marshall C.

'- Marshall C.

Air Conditioner Installation in Bonner, MT 59801

“I was having issues with my a/c unit. I called Design Air and they sent someone out the next day! My old a/c unit was not able to be repaired in a sustainable fashion. So Doug and Mike gave a very reasonable quote for a new unit. Tristan and Ed installed my new Air Conditioner in less than 4 hours. They were both extremely efficient and knowledgeable. Two of the hardest workers I have seen in action! I am really happy with my new A/C it works like a dream! Thank you all!”

– Jenny S.

'- Jenny S.

Need Air Conditioner Service?

Contact the experts at Design Air.

Call us at 406-251-7997!