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.

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!

Air Conditioner Maintenance in Charlotte, NC 28277

“Omar is very polite and does a great job!
Thank you!
Anne Lynn” – Anne L.

Air Conditioner Repair in Matthews, NC 28104

“Quick diagnosis; explained options well. Work done efficiently, happy with the service.”

– Thomas P.

Air Conditioner Maintenance in Charlotte, NC 28205

“Positive. Mike was professional and nice. Did what he needed to do and was gone.”

– Donna D.

Good Service!

“Good Service!”

– Cheryl R.

Excellent work!

“Omar was very professional and polite. Took the time to explain the issue and outlined the repairs needed. He is very thorough and has restored my air conditioning. Excellent work!”

– Cat T.

As always, completely satisfied with All City's speedy response to our HVAC issue

“As always, completely satisfied with All City's speedy response to our HVAC issue. And no cost due to our service contract. Honest and reliable company referred to us many years ago from a friend who had also used them for years.”

– paula s.

All City is an awesome company!

“All City is an awesome company! Jeff and his team of technicians are very knowledgeable and every time they've come out, either for regular maintenance or a service call, the technicians are super friendly, Marty even remembered our dog's name, they professional and always explain what they are going to do, any issues they found or what the problem is. Last summer we woke up on a Sunday to a sauna downstairs. We tried to troubleshoot on our own, but by noon our thermostat was reading 94 degrees! I called All City, left a message and within 30 minutes Jeff called me back. He was on the complete opposite end of Charlotte enjoying his day off and without a thought, he turned around and was at our house with a second technician within 2 hours. They fixed it and the AC was kicking before dinner! All City is a breath of fresh customer service air!”


Phenomenal, superb and quality work

“Phenomenal, superb and quality work. Ernie was very knowledgeable and was able to figure out, and fix, the issue during one visit. Great rewards/membership program perks which makes maintenance or repairs even more affordable.”

– Nicole C.

I highly recommend All City

“Very professional and helpful service today. Very kind to have answered many questions I had today. I highly recommend All City.”

– Tracey B.

Martin appeared very knowledgeable and was very friendly

“Martin appeared very knowledgeable and was very friendly.He explained what he was doing and explained that it would cause the unit to last longer and save us money.”

– Jack C.

All City Heat and Air proudly provides HVAC service to Belmont, 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.