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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

"Atlanta Air Authority comes highly recommended by my wife and me. We are very happy with the finished product and have only good things to say about them. Please consider them for your HVAC work as well. I don't think you will be disappointed."
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+9

Response time4 hrs
5 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

"We needed to replace our aging HVAC system. It had various parts failing and wasn't worth it to keep repairing it.  Dayco went above and beyond all expectations! I had already received quotes from 4 other HVAC installers but just had a feeling that my search wasn't complete. I called Dayco based on the reviews I read on Angie's List and am so glad I did.
Dean was on time and was sure to put on booties before he walked in. He did a complete inspection of our house, carefully looking at our existing system and asking me questions about what worked well with our current system (ie when it was working, did it cool the house properly in the summer, heat in the winter) and what we were looking for. He quoted us a new 3 ton 2 stage unit that was very well priced.
There were a couple of things that stood out to me and why I chose to have Dayco do the installation.
1) Dean did not give me a hard sell. He simply stated what he thought best for our house based on how big the house is and other requirements. He didn't try to do a song and dance routine like many others had on what I needed and why. A couple of other installers had quoted me a 4 ton system and I asked him why 3 vs 4 and he explained why. Since I had had more quotes for a 4 ton, he assured me that if I signed him on to do the job, he would come out and do an intense study of the size of the house (Manuel J study) to be 100% sure that the 3 ton was what we needed. He said that if we had a 4 ton installed, the system would be too big and not cool/heat the house properly. He said experience told him we needed a 3 ton but was willing to do the the calculations for my peace of mind. When he did the Manuel J study, the calculations showed he was correct. This told me that the guys who quoted me the 4 ton were just out to get my money. No one else even talked about the Manuel J study. I really appriecated that not only did Dean educate me on it but was willing to do the extra work to prove he was correct.
2) His attention to detail was awesome! When he went upstairs to look in our attic, he was sure to take his booties off as to not track insulation back in the house and when he raised the stairs back into the attic, was sure to leave it EXACTLY how he found it. My husband hates having the string for the drop down stairs hanging down and Dean remembered to pull it up. A little thing for sure, but it is the little things that mattered. That told me that he'd pay attention to every detail on the job.
The removal of the old system and the installation of the new went very well. The team he sent out to do the work was professional and did a great job. Dean came out halfway in the install to inspect everything.
We couldn't be happier with the new system. Spending $7,0000 on an HVAC isn't the most fun thing to do, but I like knowing that we received a great deal on the product and the service. I HIGHLY recommend Dayco for all your HVAC needs.
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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
Comfort Solutions Heating & Cooling, LLC
4.7(
515
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceDuctless Mini-split Heating System - Install or Replace+6 more

Serving Acworth, GA and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Great service and very competitive price. No up sell or bait n switch from these guys at all. Very quick install HVAC and my house is cooling nicely. 2 months so service and no issue. JP was excellent!! Will call again for my upstairs unit."
2 Brand New Rheem AC Systems
Old AC Systems
Response time11 hrs
12 neighbors recently requested a quote
Recommended by98%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

Turn your system off when you're toasty or when you're out to prevent unnecessary wear. Using the timer on your thermostat so that it switches off when it reaches a certain temperature or turns on just before you get back from work is best. An annual maintenance contract can be helpful to ensure your system receives these important services at regular intervals.

While your AC unit may still run even if its capacitor is going bad, doing so takes a lot more energy, so it can drive up your electric bill and cause further damage to your AC unit’s parts. If you suspect a bad capacitor, it’s important to have a professional diagnose and fix the problem before you continue to run your AC.

If the air coming from your AC unit is cool but never quite cold, there are a few reasons this might be happening. For starters, it could signal that your refrigerant levels are low. If there are no other indications of this particular issue, like hissing noises or frozen refrigerant lines, anything from dirty filters to damaged condenser or evaporator coils could be responsible for the problem.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

It’s normal to hear a low humming sound as air moves through your vents. Most of the time, you probably won’t even notice it. However, if that sound becomes disruptive or if you hear more concerning noises (such as rattling, clicking, banging, hissing, or grinding), there might be a problem with your HVAC 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.