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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

"A giant shoutout to Atlanta Air Authority for coming to our rescue this week. We came home from being out of town on Sunday to a hot house. Our A/C unit was toast. Their quick response and fantastic service had us back up and running with a new unit within 3 days. Canâ t say enough good things about them. Definitely check them out next time you need HVAC service!!"
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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

29 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
89 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

16 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!
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Cool Air Mechanical's Service Team
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Cool Air tech headed to a job!

+35

2 neighbors recently requested a quote
Recommended by93%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.

The general rule of thumb for figuring out how much AC tonnage you need in your home is that for every 500 to 600 square feet of space you need to cool, you’ll need one ton of AC cooling power. So, a 1,000-square-foot home will need 2 tons of AC power. 

When first installed, flex ducts shouldn’t cause airflow problems in your home. However, because flex ducts aren’t the sturdiest and require extra support, they lose their durability over time and begin to sag, which can inhibit airflow down the road. Also, if your flex ducts aren’t tight enough, your HVAC could work twice as hard for the same air pressure. If you’re worried about the airflow in your home, a rigid duct may be your best bet.

Yes. It's not just AC filters that get dirty. Ducts can accumulate dust and dirt quickly. Insects and animals can also get into duct systems, creating many problems. Dirt build-up and unwanted guests can constrict the airflow and cause rooms not to cool evenly. You might also see higher energy bills because they're not working as efficiently.

On average, replacing an AC compressor costs between $800 and $2,300, but it could cost as much as $2,800. There are a few factors that impact the price of a compressor replacement, including the type and size of the compressor, as well as the type of HVAC system and local labor rates.

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.