865-856-8797

Emergency Service Available!

865-856-8797

Emergency Service Available!

Air Conditioning

Close up of air conditioner.

A & L Heating and Air is your #1 HVAC contractor in Maryville, TN 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 A & L Heating 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.

The SEER Calculator is disabled because JavaScript did not properly load.

To view the calculator please try your browser's refresh button, enable JavaScript, or try a different browser.

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 A & L Heating and Air, we provide all the services you need to keep your AC running in top-notch shape. Call us at 865-856-8797 for repairs, maintenance, or new-system installation.

Need Air Conditioner Service?

Contact the experts at A & L Heating and Air.

Call us at 865-856-8797!

Air Conditioner Installation in Maryville, TN 37804

“Wanted to write a review for A&L Heating and Air. My wife and I had to replace our unit and had to find a decent company to work with. That can be a chore! Thankfully we were introduced to Aaron with A&L (several on this site recommended them actually). Aaron Sweetwood is the owner of the company and he actually installed our unit. Not every day you have the owner of a company completing your work order. Great service. Great follow through. Excellent company to work with. Highly recommend!” – Craig S.

Best Price, Very Professional!

“I want to thank you for being on time. You said 9:00 o'clock it was 9:00 o'clock and laying carpet on my rug so you wouldn't get it dirty. Erin, Amos, and Raffael were very courteous, polite and neat. I want to thank you for being the best price. These men were also very professional. We cannot say enough abut your crew.”

– Leonard & Joann ..

Air Conditioner Repair in Maryville, TN 37801

“We used them for the first time today. Very pleasant to deal with on the phone and in person. The tech fixed my a.c. very quickly. He even told me how old my unit is and it's condition (I had no clue, didn't think to ask when I bought my house). I'm going to purchase their maintenance plan too. Super happy with the service.”

– Krista M.

Air Conditioner Installation in Maryville, TN 37801

“This is an A+++ company, They have done multiple jobs for my company and have always performed extremely well, with no issues. The last job was removal and installation of a 10 Ton unit and air handler. Out / In and running in 3 days. Very professional crew and business. I would highly recommend.”

– Steve G.


A & L Heating and Air proudly provides HVAC service to Alcoa, Friendsville, Greenback, Louisville, Loudon, Lenior City, Madisonville, Maryville, Vonore, Walland, TN, and the surrounding communities. Visit our service area page for more coverage details, call us at 865-856-8797, or request service online today.

Request Service