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.

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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 Repair in Friendsville, TN 37737

“Ronald came out late last night within an hour of my call. He was very friendly, knowledgeable, and got our A/C unit back up and working, quickly. He also notated for his company to schedule someone to come out and assess a/c need for future new unit, quote.” – Tina D.

Air Conditioner Repair in Maryville, TN 37801

“These guys ROCK! I have had repairs twice & service plan work now twice! I highly recommend the entire staff as even the ladies on the phone have been SUPER helpful! The techs are really knowledgeable and super friendly & thorough!”

– Tonya M.

Air Conditioner Maintenance in Alcoa, TN 37701-2226

“Professional and efficient”

– Logan H.

Air Conditioner Maintenance in Alcoa, TN 37701

“Very professional and informative. Did an excellent job.”

– Logan H.

Air Conditioner Repair in Maryville, TN 37803

“Steven came even earlier than our scheduled appointment! So thankful for getting our unit up and running so quickly. Luckily it was just a fuse! Thanks Steven and A & L!! Highly recommend them!”

– Karen B.

Air Conditioner Repair in Maryville, TN 37801

“Great! Very knowledgeable Tech. Took time to do things right. Explained technical issues.”

– Ruben O.

Air Conditioner Maintenance in Maryville, TN 37801

“Ron completed seasonal maintenance on our HVAC system. He is always very thorough, professional and answers all of our questions.”

– John M.

Air Conditioner Repair in Lenior City, TN 37772

“David was Very knowledgeable, professional and great personality. Had our unit diagnosed and running in no time. Definitely our go to company! Duct cleaning and service agreement commitment soon. Thank you David”

– Ali R.

Air Conditioner Installation in Knoxville, TN 37920

“Excellent.”

– Gerald J.

Air Conditioner Replacement in Maryville, TN 37803

“I saw an advertisement for A & L online, and called them to get a quote on replacing both of my dated AC units/furnaces. Was called very promptly to set up an appt for a quote, and received the quote the very same day. The salesperson, Ethan, wasn’t pushy at all and was very informative on all the products they had to offer. We discussed what was best for my particular house, and installation began within a week. The upstairs ac unit was a nightmare for them to install, but we never heard a single complaint as they worked through the process. They cleaned up each day, and communicated everything that needed to be done the next day. They finished the job in the time they said it would take, and then followed up to make sure everything was great! Very detailed work, and very pleased by the professionalism by everyone that showed up at my house. I would highly recommended them for any future jobs/repairs/replacements you need! On a 1-5 rating, they would definitely be a 10!!! Thank you!”

– Randy F.


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.