Air Conditioning

A happy woman on the beach.

All City Heat and Air is your #1 HVAC contractor in Charlotte, NC 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 All City Heat and 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.

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.

SEER
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 All City Heat and Air, we provide all the services you need to keep your AC running in top-notch shape. Call us at 704-545-2000 for repairs, maintenance, or new-system installation.

Need Air Conditioner Service?

Contact the experts at All City Heat and Air.

Call us at 704-545-2000!

Marti was very friendly to my dog and a pleasure to have at my house

“Marti was thorough in the maintenance to my AC and made some helpful suggestions. He took time and care to remove a screen around my outside AC unit that I failed to remove before he arrived. He was very friendly to my dog and a pleasure to have at my house.” – Laura W.

Thank you Ernie and All-City Air!!

“From my initial phone call over a non-working A/C in the Carolinas in a July heat wave!! To a functioning unit within a few hours!! Efficient and explained everything well. Thank you Ernie and All-City Air!!”

– Anne S.

Ernie always does a great job

“Ernie always does a great job”

– Elizabeth B.

We will keep this company in mind for our future AC maintenance, repairs and replacements

“After my Home Warranty company would not send an HVAC Technician until the end of the week (AC issue started on Monday 7/1/19), I went on Angie’s List to find a top rated company.
Our AC would power on but the air wasn’t cooling the house.
I read the reviews and called All City. They were able to come to our house within an hour (WITH THE PARTS NEEDED) to repair our unit. The only suggestion he mentioned was to clean the unit so that it would perform better and consider replacing it because the unit is old (we already knew that btw).
Jeff was our technician and he was accurate in his assessment – which made the repair time fast and efficient!
Jeff was knowledgeable, polite, and up front about the potential costs involved!!
We will keep this company in mind for our future AC maintenance, repairs and replacements. * * * * * FIVE STAR SERVICE!!”

– Tonia C.

The quick honest service was refreshing

“My usual AC maintenance company gave me an unrealistic quote for some work uncovered on a regular review. My wife wanted a second opinion and called ALL CITY. A technician was sent the same day the identified the real problem and no cost solution. ALL CITY noticed a problem missed during the regular service and fixed it a couple of days. The quick honest service was refreshing.”

– Stuart W.

Ernie was very professional and helpful.

“Ernie was very professional and helpful in advising which filters we should use for our system.”

– William F.

Marti did great service today

Marti did great service today. He is knowledgeable and extremely thorough.”

– James O.

Marti was extremely thorough and knowledgeable about maintenance of our unit

“Marti was extremely thorough and knowledgeable about maintenance of our unit. I learned a lot about the importance of maintenance and was very satisfied with the service completed this afternoon.”

– James O.

Thank you!

“Thank you Martin for your professionalism, courtesy, kindness, understanding and helpfulness.
Thank you! IK”

– I K.

Excellent Service!

“Excellent service!”

– Steven C.


All City Heat and Air proudly provides HVAC service to Charlotte, Huntersville, Matthews, Mint Hill, Pineville, Harrisburg, Indian Trail, Waxhaw, and the surrounding communities. Visit our service area page for more coverage details, call us at 704-545-2000, or request service online today.