Air Conditioning

The top of an air conditioner.

ACS Air Conditioning Services is your #1 HVAC contractor in Tucson, AZ, 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 ACS Air Conditioning Services 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.

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 ACS Air Conditioning Services, we provide all the services you need to keep your AC running in top-notch shape. Call us at 520-230-5668 for repairs, maintenance, or new-system installation.

Need Air Conditioner Service?

Contact the experts at ACS Air Conditioning Services.

Call us at 520-230-5668!

Air Conditioner Repair in Tucson, AZ 85704

“He came, he listened, he fixed! Friendly, all the good stuff. Thanks!” – David M.

Air Conditioner Repair in Tucson, AZ 85757

“As usual Dustin and his crew provided outstanding service. Response time was amazing and Travis was very professional and proficient. Travis demonstrated high knowledge of his trade and diagnosed the problem within minutes. He was very detailed in his explanation of the issue and provided me with options to correct the issue. He also took the time to perform a functions check on other items within the unit to ensure proper operation. Very pleased with ACS and wouldn’t hesitate to use their services again in the future. Thank you.”

– Bryon L.

Air Conditioner Maintenance in Oro Valley, AZ 85742

“Brian was great to work with and was super professional and diagnosed the problem quickly. Excellent work!”

– Keith L.

Air Conditioner Maintenance in Oro Valley, AZ 85737

“Manny is an excellent honest tech. He reviews what exists and recommends appropriate correction if necessary. He has worked on my systems many times and if I have my way he would do ALL of my AC services !”

– Joe M.

Air Conditioner Maintenance in Oro Valley, AZ 85737

“Travis was quick and efficient. He was very knowledgeable and got the job done without hesitation.”

– Brian L.

Air Conditioner Maintenance in Tucson, AZ 85745

“Brian Lujan was very professional and explained everything that he was doing and why. He performed all the required tasks and assured us that the system was performing as designed.”

– Fred H.

Air Conditioner Repair in Marana, AZ 85653

“Excellent. Good man.”

– Ken G.

Air Conditioner Maintenance in Tucson, AZ 85741

“Bryan did a great job looking into the AC unit issue. Very professional.”

– Lamont D.

Air Conditioner Maintenance in Tucson, AZ 85730

“Brian was very friendly, helpful and knowledgeable about the AC unit. Thank you.”

– Cindy N.

Air Conditioner Maintenance in Tucson, AZ 85750


– Larry C.

ACS Air Conditioning Services proudly provides HVAC service to Catalina Foothills, Continental Ranch, Dove Mountain, Green Valley, Marana, Mount Lemmon, Oro Valley, Picacho, Red Rock, Rillito, Sahuarita, Tucson, Vail, and the surrounding communities. Visit our service area page for more coverage details, call us at 520-230-5668, or request service online today.