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 SEER2 (Seasonal Energy Efficiency Ratio 2) 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 SEER2 unit. You can even customize it to better match your home’s system for a more accurate calculation.

SEER2 Energy Savings Calculator

{{ seerOld }} SEER vs {{ seerNew }} SEER2

{{ annualSavingsPercent() }}%

{{ seerOld }}
{{ annualElectricalCostOldUnit() }}
Annual Cost
{{ seerNew }}
{{ annualElectricalCostNewUnit() }}
Annual Cost

Estimated 15-Year Savings:*
${{ projectedSavings }}

{{ year }} {{ state }} average residential electricity retail price of {{ price }}¢/kWH**.
*Based on an average annual utility rate increase of {{ avgUtilityIncrease }}%.

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

{{ state }}'s electricity prices compared to {{ yearFifteenYearsAgo }}.

{{ yearFifteenYearsAgo }}


{{ priceFifteenYearsAgo }}¢/kWH

{{ yearTenYearsAgo }}

{{ differenceTenYears }}

{{ priceTenYearsAgo }}¢/kWH

{{ yearFiveYearsAgo }}

{{ differenceFiveYears }}

{{ priceFiveYearsAgo }}¢/kWH

{{ year }}

{{ differenceCurrentYear }}

{{ price }}¢/kWH

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

** Data for Canadian cities from
*** Data from

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.

Need Air Conditioner Service?

Contact the experts at Mountain Air Cooling & Heating.

Call us at 479-782-4328!

Air Conditioner Repair in Fort Smith, AR 72903

“Chris did a wonderful job. He worked in the attic in the very hottest part of the day. We insisted he come down cool off and finish the next morning. He would have gone and finished but it was to hot for anyone in the attic.”
- Don B.

Air Conditioner Replacement in Spiro, OK 74959

“The whole service team/technicians were very professional, knowledgeable, and courteous. I highly recommend them to anyone needing HVAC services.”

- Anthony A.

Air Conditioner Installation in Fort Smith, AR 72901

“The guys that came out were awesome! High quality of work. Thank you.”

- Conner K.

Air Conditioner Repair in Fort Smith, AR 72908

“Chris arrived as expected, asked pointed questions to diagnosis problem, was spot on with the issues, repaired the problem, offered suggestions for future maintenance, was professional and courteous. I felt the cost of service was more than reasonable.”

- Jeff N.

Air Conditioner Installation in Roland, OK 74954

“These guys were great, was able to work me in almost immediately whereas everyone else I called was booked up for weeks. My a/c installation needed a part that they weren’t able to come by for a couple of weeks so they brought me out a window unit as it was getting hot pretty quickly and that window unit kept me pretty cool! They called a couple of days beforehand to let me know they had the part and showed up when they said and had the job completely done and cleaned up by the time I got home from work. They really seem to care and that meant a lot, my house has been wonderfully cool since their installation of the brand new unit, and they finance through green sky which made this affordable for me. I give them 5 stars!!!”

- Missy B.

Air Conditioner Installation in Roland, OK 74954

“Our experience with Mountain Air in Roland,Ok was 5 stars! The installer’s were here early, started corking and did not stop until they finished that afternoon! They left our house spotless and with two new air conditioners and two new heaters it was a big job! I would certainly recommend Mountain Air to anyone wanting the best people doing your installation! Gibson, Jason, and David are very knowledgeable and did an outstanding service for us! Tanner Hall was our sales representative and he was a great guy to work with and we asked many questions and he explained them all! We felt comfortable and confident that he knew his job well!”

- Vickie K.

Air Conditioner Maintenance in Greenwood, AR 72936

“The guys always do a wonderful job with my service.”

- Genevieve H.

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, OK 74930

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

- Sherry S.