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TRUSTED BY ACWORTH, GA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon1.4k+
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Acworth - Updated Nov 2026

Avatar for Atlanta Air Authority, Inc.
Atlanta Air Authority, Inc.
4.9(
237
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+5 more

Serving Acworth, GA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"I interviewed three HVAC contractors and AAA gave me exactly what I wanted for less money than the others. Cody, Chris, Brad, and Jacob did a great job installing two systems in one day. They were very professional and patient me as an inquisitive owner. WO Number 30510724"
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+9

Response time4 hrs
6 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Dayco Systems LLC
Dayco Systems LLC
4.9(
179
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair

Serving Acworth, GA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I wanted to say a few things about this company. My other company sold to Dayco and this is my experience with the HVAC department. I called them because my upstairs unit was making a strange noise. Dakota came out and found the problem. He recommended what was needed and gave me an estimate. He was very professional. Later I spoke with Lane the service manager to ask a few questions. He was extremely helpful and also very professional. So, I will say that my first experience with Dayco was a very positive one. I would recommend anyone to give them a call."
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+48

27 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Guardian Heating and Air, Inc.
Guardian Heating and Air, Inc.
4.7(
133
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service+1 more

Serving Acworth, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"From the quote visit to the actual work, all the people were very knowledgeable and polite. I had multiple quotes and they were not only on par with the others I received but Guardian gave me alternative options. The gentlemen that worked my HVAC issue even took the time to pluck the little pieces of attic insulation out of the carpet that made it past the floor coverings they put down. So far so good and I am just happy that they were a no pressure outfit that seems to have gone above and beyond."
Rheem Gas Furnace Install
American Standard Installation
Guardian At Your Service
Guardian at Your door
HVAC Expert

+3

Response time10 mins
88 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Guardian Heating, Air, Plumbing & Electrical
Guardian Heating, Air, Plumbing & Electrical
5.0(
16
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace+9 more

Serving Acworth, GA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

30+ Years of Experience! Voted Best HVAC Company 4 years in a row in Atlanta!. Free Service Call Fees with Repairs over $250! Meet or Beat your in hand HVAC Estimate! At Guardian Home Experts, we are committed to each and every customer by offering one solution to your home service needs. With over 30 years of experience, the company was built on providing reasonable and affordable prices, expert technicians, and practices that respect the customer. Our customer's time, money and needs, are placed at top priority . Guardian's solutions are always delivered with honest and upfront practices. At Guardian, we "Save the day with expert service," and guarantee your satisfaction stopping at nothing making sure your service is worthy of a positive review and your referrals. At Guardian- Quality Work, Quick Service at an Exceptional Value is Guaranteed!

Your Guardian Experts
Free HVAC Estimates
Tankless Water Heater Repair, Maintenance and Installation
Fully Stocked Trucks
Heater Tune Up

+27

12 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Cool Air Mechanical LLC
Cool Air Mechanical LLC
4.7(
279
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+16 more

Serving Acworth, GA and surrounding areas

Approved (Corporate)

In business since 2011

Emergency services offered

Credit card accepted

"They did exactly what they said they would do in our estimate and more. They even fixed an exhaust duct that had been damaged previously by another contractor. They ( Moises Garcia and his co worker) were on time, highly professional, did a fabulous job of clean up and it did not take as long to install as we thought it would. We are very happy with their work and our new HVAC system, it performs very well, so much better than the old system ever did."
Cool Air Mechanical Techs preparing for a day's work serving customers!
Filter Change
Cool Air Mechanical's Service Team
Loading filters in the trucks. We ensure our trucks are stocked and we have equipment and tools on hand to best serve you!
Cool Air tech headed to a job!

+35

Recommended by93%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

To lower humidity quickly, run a dehumidifier or your home's air conditioner or turn on exhaust fans to extract moisture. These methods can quickly and effectively bring your home's humidity levels to a comfortable condition. However, you should consistently practice humidity-reducing tasks to maintain proper indoor humidity levels.

If your HVAC system's capacity doesn't match the required CFM (Cubic Feet per Minute), imbalances can occur. An undersized system struggles to maintain desired temperatures, leading to discomfort. An oversized system might short-cycle, wasting energy and causing temperature fluctuations. Properly matching capacity to CFM ensures efficient and consistent heating, cooling, and home ventilation system performance.

An HVAC unit, like a furnace, air conditioner, or heat pump, produces warm or hot air. The air ducts serve as the passages to help heat or cool air from the HVAC unit flow through the home. Air ducts are just one part of the overall HVAC system.

Your AC might not cool after a power outage because of a tripped circuit breaker, blown fuse, or damage to the compressor or capacitor. If you notice your AC not working after a power outage, in most cases, the breaker has tripped or the system has built-in brownout and blackout protection. Reboot the AC by turning it off at the thermostat, resetting the circuit breaker, and waiting 30 minutes to turn the AC on again. 

Yes. It's normal for the AC compressor to cycle on and off intermittently in dry mode as it maintains the desired humidity level. The compressor cycles to prevent over-dehumidification and to maintain a comfortable indoor environment. This cycling behavior ensures efficient operation and optimal humidity control, contributing to the overall effectiveness of the dry mode function in your AC system.

The Acworth, GA homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.