Air Conditioning

Air conditioning service.

Carter & Sons HVAC is your #1 HVAC contractor in Smyrna, GA, 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 Carter & Sons HVAC 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.

How Much Money Can a New Air Conditioner Save You?

Our SEER2 (Seasonal Energy Efficiency Ratio 2) energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit’s SEER value and compare it to a newer, more efficient SEER2 unit. You can even customize it to better match your home’s system for a more accurate calculation.

SEER2 Energy Savings Calculator

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This calculator does not guarantee actual costs or savings and is only to be used for educational purposes.

Customize to Your Home

Adjust these settings for a more accurate calculation:




Rate (¢/kWH)


Average Annual Cooling Hours***

Historical Comparison

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** Data from U.S. Energy Information Administration
*** Data from 2002 EPA study

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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.

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 Carter & Sons HVAC, we provide all the services you need to keep your AC running in top-notch shape. Call us at 770-434-4095 for repairs, maintenance, or new-system installation.

David came out to give us an estimate in a timely manner. It was excellently priced and the worked was done professionally and quickly. A week later, our AC started acting up but it was an issue that had nothing to do with their work. David fixed the problem the next day for free and was amazing to work with.
- Jason B.

Carter and Sons is a company with the best service we’ve experienced since buying a house. Everyone from the owner to the administrators at the office is great. They are cordial, punctual, knowledgeable and will do everything they can to solve your issues. Their prices are fair and competitive. We highly recommend them, we simply wouldn’t use anyone else.

- Ana M.

I’ve had Carter and Sons replace the HVAC equipment in the last 3 homes I’ve purchased. Haven’t used anybody else in years. They do a great job with equipment sizing, layout, installation and service. Wonderful, very reliable people and they keep my state of the art HVAC equipment tuned up nicely.

- Peter K.

I called on short notice. They were able to build me into their schedule the same day and resolve my A/C issue (or lack of) in a matter of minutes. John helped verify my repair was under warranty and owned the processing of the warranty claim. Thankful for John’s assistance in getting my home cooling again.

- Derrick L.

Wonderful experience! Every person my husband and I came in contact with was honest and kind. The staff went above and beyond while installing our air handler. It was found the air cleaner from another system had a recall due to fire safety risk. We had 4 other people out that did not catch this safety hazard. I would recommend this company to anyone!

- Hannah C.

From the first phone call to the time the technician left everyone involved was very professional. We felt they were concerned about our needs and how best to respond to our request. We’ve used them for over 10 years and will continue to do so.

- Terri M.

Great experience all around – they responded quickly to get me on the schedule for a repair. Arrived in a timely and professional manner and had the replacement part/repair done same day. I’ll definitely continue to work with them in the future.

- Elyse W.

Need Air Conditioner Service?

Contact the experts at Carter & Sons HVAC.

Call us at 770-434-4095!