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 85711

“Jon was friendly and professional. He quickly diagnosed the issue and ordered a replacement part. Although the part will take a few days to arrive, he was able to get the AC in a state where is should limp along without causing issues until the part comes in. Very satisfied to feel cold air coming out of the ducts.” – Joshua K.

Air Conditioner Repair in Oro Valley, AZ 85705


– Rich E.

Air Conditioner Repair in Marana, AZ 85743

“Jon did an excellent job. The outside unit is quieter . Inside the house is quieter. The air is colder. Good job”

– Bill K.

Air Conditioner Replacement in Marana, AZ 85658-4915

“Manny was exceptional, courteous, and was able to articulate his knowledge of air conditioning systems to me to where I am now able to understand and make a well informed decision in the future when it comes to my home air conditioning. Job well done!”

– Jim B.

Air Conditioner Maintenance in Tucson, AZ 85710

“Kevin did an outstanding job on servicing my AC system. This was a pre-summer inspection on my Trane AC/Heating system which was installed by ACS two years ago.

Kevin was on time, professional, and took the extra time to ensure my AC was performing at peak performance. He also recommended I install an optional component which would lower my electric bill and reduce compressor wear over the years. He took the time to show me how much improvement would be gained with the new component installed. It was significant so I had it installed.

I highly recommend ACS.”

– Mark B.

Air Conditioner Repair in Oro Valley, AZ 85737

“Kevin is extremely knowledgeable in his profession, and did an exceptional work on our A/C unit. ACS assigned the right man for the job requirements.”

– Ronald L.

Air Conditioner Repair in Tucson, AZ 85711

“Jon O'Brian was really helpful & gave excellent service.”

– Lydia F.

Air Conditioner Maintenance in Catalina Foothills, AZ 85750

“Continuing to have Manny as our maintenance technician is one of the reasons we chose ACS to replace when our 19 year old units stopped cooling.
Manny is personable, knowledgeable, efficient and can explain HVAC in a way that we can understand. Excellent.”

– Melissa T.

Air Conditioner Repair in Tucson, AZ 85746

“Manny was great and has been. I always know I’ll get quality work and an honest opinion when he comes out. Great asset for the ACS team.”

– Jamal G.

Air Conditioner Repair in Tucson, AZ 85747

“Awesome, had are lobby unit repaired in no time”

– Rich E.

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.