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TRUSTED BY DECATUR, GA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon708
    Verified heating and air conditioning services reviews

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

Avatar for Paze Heating & Cooling
Paze Heating & Cooling
4.7(
72
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceElectric Furnace / Forced Air Heating System - Repair+1 more

Serving Decatur, GA and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

"Zeno was very prompt and professional. He took time to investigate and resolve our issue with our HVAC system. He took the time to explain what was wrong and how he intended to fix the problem. Prices were reasonable. He is very diligent and focused on getting the job done correctly and efficiently."
Carrier
Carrier Furnace
Carrier Furnace
Carrier Furnace
Carrier A/C

+18

Response time5 hrs
6 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for R Wiley Heating & Air
R Wiley Heating & Air
4.7(
1,114
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+17 more

Serving Decatur, GA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"This was my second quote and this company is amazing. Quickly identified the issue, changed the motor, provided a filter and made sure everything was working on one trip within a few hours. The previous company (Air Pros, LLC) said it was unfixable and tried to sell me a new unit over $6k which was a huge scam. Don't go to those guys, work with this family owned honest business. Keep in mind HVAC repairs in many cases are not cheap, I own 3 houses and have paid several hundred or more when an HVAC is old and need repairs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time10 hrs
Response rate100%
14 neighbors recently requested a quote
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 Decatur, GA and surrounding areas

Approved (Corporate)

In business since 2011

Emergency services offered

Credit card accepted

"Jerry who performed my HVAC service on 12/23/20 was wonderful. He was very professional, caring and courteous. I appreciated his way of explaining the plan for the visit in a step-by-step approach. After completing the work, he took the time to give a brief summary and asked if there was any question. He addressed many concerns I had about my HVAC"
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

2 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 Decatur, GA and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Great work … appreciate the immediacy of the work done. The comprehensive inspection and the report to accurately understand the condition of my HVAC systems. Thank you for guiding my next steps. Will definitely hire again when I begin improvements in the HVAC area."
2 Brand New Rheem AC Systems
Old AC Systems
Response time11 hrs
8 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Moncrief Heating & Air Conditioning
Moncrief Heating & Air Conditioning
4.6(
310
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+13 more

Serving Decatur, GA and surrounding areas

Approved (Corporate)

In business since 1898

Free estimates

Emergency services offered

"My husband and I have used Moncrief for nearly 30 years -- ever since we bought this house.  The prior owner used Moncrief and recommended them.   Over the years we have had this company perform all service/maintenance work on our HVAC system.  They are not cheap, but they do good work and are very trustworthy.
"
Moncrief Truck
Additional Photos
Additional Photos
7 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Varsity Zone HVAC of Chamblee
Varsity Zone HVAC of Chamblee
5.0(
38
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+5 more

Serving Decatur, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"I?ve known Drue Lawrence and his family for years. He is one of the kindest, caring, and responsible guys I know. He treats people with the upmost respect and pays attention to the details. I?ve seen him first hand as a guy who shows up every time and is a hard worker with a heart of gold. I am so excited for him to be in our region as an excellent general manager for Varsity Zone HVAC but even more excited to have him back in ATL as a friend. I would highly recommend him and the team to anyone, he does a great job every single time."
My jobs
Response time2 hrs
Response rate95%
13 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

The top reason to purchase an HVAC maintenance contract is the fact that it ensures you are detecting problems before they turn into expensive fixes. Secondly, this type of contract provides priority service, which is nice if it’s peak busy season. Finally, an HVAC maintenance contract provides discounts on parts and labor for repairs, which can save you a good amount of money if your unit breaks.

While both have advantages, a split system is generally cheaper than a ducted one. Because they are less invasive to install, the labor costs are lower, and they can be more energy efficient. But, a ducted system might be worth the investment if you run it more frequently. 

In most cases, you should hire a professional to carry out services on your HVAC system, as the components are complicated, expensive, and potentially dangerous to work with. However, there are a few things you can do on your own to keep your HVAC system in good condition, including changing your filters every three months, keeping the area around your outdoor condenser clear of debris and plant growth, making sure your or intakes aren’t blocked, and keeping an eye out for increased energy bills, strange noises, and unusual odors related to your equipment.

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

The standard HVAC warranty is around five years. Still, many brands offer an extension to 10 years if you register the product within a specific timeframe, typically 60 to 90 days post-purchase or HVAC installation. Over the past decade, warranty periods have substantially increased, shifting from 3-5 years in the 90s to the now-prevalent 10+ year warranties. Both warranty types cover parts failing due to manufacturer defects, incurring no additional costs. Some manufacturers provide extended warranties surpassing the usual 15- to 20-year window, though these often involve extra fees. 

The Decatur, 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.