Cost to Install a New AC Unit
in Atlanta
How Much Does It Cost to Install a New AC Unit in Atlanta?
$6,999 - $19,000
- Complete Central AC Units in Atlanta costs on average around $9,550, but can range from $6,999 to $19,000 for a single unit. The final cost of the AC replacement installation will depend on several factors, including the brand you choose, the size of the unit, the units SEER level, and if duct work needs to be repaired or replaced.
- Top HVAC brands, such as Trane, can cost more, but homeowners can expect these units to last much longer than budget brands, which may need to be replaced after only 8 -10 years.
- The SEER rating of an AC unit is another crucial factor when determining cost. The higher the SEER rating, the higher the initial cost of the unit, but the lower your energy costs will be.
- Larger homes will also require larger or additional units which can increase the overall cost of the project. There are many factors involved in the sizing of an AC unit and our highly trained Comfort Consultants can walk you through all your options. Reliable currently offers free, no-obligation estimates for all Heating & Cooling system replacements.
- If you're looking to cool a smaller space or if you have a home without existing ductwork, then a ductless mini-split system may be right for you. Ductless mini-split systems continue to grow in popularity and can offer more installation versatility, and they often come with lower upfront costs.

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AC Unit Replacement Cost
If you're a homeowner in Atlanta considering a new cooling system, one of the first questions you're likely asking is, how much is an AC unit? The answer depends on a variety of factors, including the size of your home, the type of HVAC system you choose, and the complexity of the installation. On average, the AC unit replacement cost in Atlanta typically falls between $4,500 and $19,000. This range covers standard central air systems, but high-efficiency models or homes requiring ductwork modifications can drive the cost of a new AC unit even higher.
When exploring AC unit replacement, you're not just paying for the equipment, you're also investing in comfort, energy efficiency, and long-term performance. Factors such as labor, materials, warranty options, and installation quality significantly affect your total investment. Choosing a professional, licensed HVAC technician ensures the system is installed, operated, and serviced correctly, helping it to function efficiently over time.
Whether you opt for a budget-friendly or premium unit, attributes like cooling capacity, brand reputation, and service quality play a vital role in your final decision. Replacing an AC unit is a costly undertaking, but the long-term savings, especially from energy-efficient models, can offset the initial price.
So, how much is an AC unit for your specific situation? The best way to get an accurate estimate is to schedule an in-home assessment with a local HVAC expert from Reliable Heating & Air. We'll evaluate your home's layout, airflow requirements, and cooling needs to provide a tailored quote that reflects the true cost of a new AC unit in Atlanta.
From the perspective of a budget-conscious consumer, real estate agent, or environmental advocate, the decision may also be influenced by things like rebates, permit requirements, and energy consumption. Every replacement scenario is unique—some may require upgrades to existing systems, while others focus solely on reliability and improved performance.
No matter your perspective, it's essential to assess, compare, and recommend based on both current and long-term goals. An affordable, reliable, and efficient AC system, backed by a solid warranty and professional installation, is the key to keeping your Atlanta home comfortable year-round.

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Signs You Need A New AC Unit
You most likely need a new air conditioner if your current AC unit:
- Is more than 10 years old. Most ACs have a lifespan of 10-15 years, so if your unit is approaching that age, it's probably worth it to get a new air conditioner.
- Struggles to keep you comfortable. This could be a sign that your air conditioning system is the wrong size or nearing the end of its life. Either way, it's usually best to invest in a new unit.
- Needs frequent repairs. This is often a sign that your AC is on its way out. It usually pays off in the long run to invest in a new unit rather than constantly spending money on expensive AC repairs.
*While supplies last. Qualifying systems. May substitute filter for replacement model if not compatible with your system.
**Qualifying systems. With approved credit. See here for installation guarantee information.

The Reliable
Video Blog

What Size AC Unit Do I Need?
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Benefits of a Ductless Mini Split
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Answers to commonly asked questions
What items often get replaced during an AC installation and what are their costs?
- Condensing unit: $600 - $3,500
- Indoor coil: $200 - $1,100
- Labor: $1,200 - $2,500
- Refrigerant line set cost: $100 - $350
What are signs that you need a new AC?
You may need a new AC if your current unit struggles to keep you comfortable or needs frequent repairs. If your AC does not keep you comfortable that could mean your unit is the wrong size or nearing the end of its life.
What is the average lifespan of an AC?
Most AC's have a lifespan of 10-15 years, so if your unit is approaching that age and giving you trouble, it is probably worth it to get a new one. Although replacing an entire AC system can get expensive, new units are more energy-efficient and last longer making it worth it in the long run.
What are additional factors that could affect AC Installation costs?
SEER level or the degree of a HVAC system's efficiency could affect cost. The higher the SEER the more efficient your system is and the lower your utility bills are. The overall size of your system is another factor that could affect cost.
How important is an AC units efficiency?
The warmer your climate the more efficient your unit should be. A low SEER unit installed in a home in Atlanta would significantly increase cooling costs vs a higher SEER unit in the same home.
Contact an Experienced Atlanta AC Replacement Company Near You
If you are searching for a top-rated Kennesaw AC replacement company or need AC repair in Kennesaw, contact Reliable Heating & Air at 770-594-9969 for a Free Estimate
When your Atlanta home needs heating, cooling, or ventilation service, go to the one-stop source you can rely on for high quality service every time. Choose Reliable Heating & Air and get the maintenance and installation services you need at a price you can afford. Give our friendly team a call to learn more, or fill out our online form to schedule your free quote today.