Air Conditioning

Air conditioning service.

Mountain Air Cooling & Heating is your #1 HVAC contractor in Fort Smith, AR 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 Mountain Air Cooling & Heating 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.

SEER Energy Savings Calculator

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This calculator does not guarantee actual costs or savings and is only to be used for educational purposes.

Customize to Your Home

Adjust these settings for a more accurate calculation:



Rate (¢/kWH)


Average Annual Cooling Hours***

Historical Comparison

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** Data from U.S. Energy Information Administration
*** Data from 2002 EPA study

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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 Every Three To Six Months.
(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.

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 Mountain Air Cooling & Heating, we provide all the services you need to keep your AC running in top-notch shape. Call us at 479-782-4328 for repairs, maintenance, or new-system installation.

Air Conditioner Maintenance in Bokoshe, OK 74930

“Jerry was great, he was professional and expanded what he did and checked my system with knowledge.”
- Sherry S.

Air Conditioning and Gas Furnace Replacement in Fort Smith, AR 72916

“David and Josiah were polite, very knowledgeable about the product and well trained. They worked hard and left the work area spotless. I will recommend Mountain Air Cooling and Heating to my family and friends.”

- Melissa B.

Air Conditioner Replacement in Bokoshe, 74930

“Awesome team work, fast response, great cleanup, system working very well.”

- Sherry S.

Air Conditioner Installation in Sallisaw, OK 74955

“The installation team did a great job.”

- Nick C.

Air Conditioner Repair in Other 74427

“Excellent service on my Trane air conditioner. Well-trained Technicians diagnosed and repaired the problem promptly. I will definitely use Mountain Air again. Highly recommended!!!”

- Ron D.

Air Conditioner Replacement in Fort Smith, AR 72901

“Came out and put in a brand new 5t unit and got it done fast, no issues so far!”

- Will Y.

Air Conditioner Installation in Fort Smith, AR 72916

“The men who installed my parents (Herman and Bernice Voegele) unit were absolutely wonderful. They explained everything to us. They cleaned up after themselves. We didn’t have to do anything. I would highly recommend this team that came to my parents house. Great Job!!”

- Susan K.

Air Conditioner Replacement in Sallisaw, OK 74955

“We had to have our central heat and air unit replaced and our service techs Dalton, Josiah, and David we awesome! They were very professional and when they finished the install they cleaned up and helped us with any questions that we had about the new system. Very helpful, kind and very hard workers.”

- Laura H.

Air Conditioner Replacement in Muldrow, OK 74948

“The installation team was very professional and answered all my questions they put in extra effort to make sure everything was done to our satisfaction before they finished including fixing existing vents and cleaning I was impressed with their work and definitely recommend mountain air if you’re looking to replace your air conditioner.”

- Robert A.

Air Conditioner Repair in Sallisaw, OK 74955

“I called Mountain Air just before noon Aug 10. The very nice young lady stated someone would arrive TODAY (unheard of in so many other places). Chris arrived just after 1:00 and was extremely professional, yet friendly and understanding. Chris took about 15 minutes troubleshooting and another 20 minutes replacing the blown capacitor (which he had in stock in his truck). I was not expecting this outstanding level of service. I very highly recommend Mountain Air for all your HVAC needs.”

- Charles B.

Need Air Conditioner Service?

Contact the experts at Mountain Air Cooling & Heating.

Call us at 479-782-4328!