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TRUSTED BY SUWANEE, GA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Suwanee, GA

*The Angi rating for Heating And Air Conditioning Service companies in Suwanee, GA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Suwanee, GA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on August 06, 2026

Find Heating and air conditioning pros in Suwanee

Avatar for Triad Mechanical Company Inc
Triad Mechanical Company Inc
4.8(
191
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+45 more

Serving Suwanee, GA and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Triad Mechanical went above and beyond the call of duty!! They are the Chick-Fil-A of the HVAC industry!! On time, very courteous, very professional, a very affordable price and finished the work before lunch time. A special shout out to Baxter Carbine Jr.!! He really took good care of us :) I will always promote Triad Mechanical to any and all looking for a great HVAC Company!!!! Bravo Triad Mechanical!!! Reid Ingle PS- We have also taken advantage of Triad Mechanical's preventative maintenance program and are OH so happy with that!!"
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+17

Recommended by96%of homeowners
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Avatar for R Wiley Heating & Air
R Wiley Heating & Air
4.7(
1,114
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Suwanee, GA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"Best HVAC company I've ever used. I won't use anyone else. They take their time to always do the right thing. And their work is always clean and tight. I'm very grateful I found them for our old house."
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Response time10 hrs
Response rate100%
41 neighbors recently requested a quote
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Avatar for Coolray Heating & Air Conditioning
Coolray Heating & Air Conditioning
4.8(
1,383
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Suwanee, GA and surrounding areas

Approved

Super Service Award Winner

In business since 1966

Free estimates

Emergency services offered

"The usual great service from Coolray for our HVAC systems."
Response time4 hrs
Response rate100%
20 neighbors recently requested a quote
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Avatar for Premier HVAC Mechanical Corporation
Premier HVAC Mechanical Corporation
4.7(
44
)
Central A/C - InstallCentral A/C - Service or RepairHeat Pump - Install or Replace+3 more

Serving Suwanee, GA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"My 28-year old Air Conditioner failed on one of the hottest days of the year and the full HVAC system needed to be replaced. I called three companies to get the best price under the conditions. After evaluating the my choices I chose Premier HVAC Mechanical. I am pleased that they were able to replace my system with upgrades within a handful of business days. I asked several questions in the process and they were kind enough explain everything in terms I could understand. Overall, it was a really good experience and I plan to work with them again in the future."
Response time9 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Cool Air Mechanical LLC
Cool Air Mechanical LLC
4.7(
278
)
Central A/C - Service or RepairCentral A/C - InstallDuctless Mini-split A/C - Install or Replace+16 more

Serving Suwanee, GA and surrounding areas

Approved (Corporate)

In business since 2011

Emergency services offered

Credit card accepted

"Daniel and Humberto installed my new hvac unit. They were very nice, professional and thorough."
Cool Air Mechanical Techs preparing for a day's work serving customers!
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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

27 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Ragsdale Heating, Air & Plumbing
Ragsdale Heating, Air & Plumbing
4.7(
187
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Repair+11 more

Serving Suwanee, GA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Very polite and professional technician. Tevin B. took the time to explain everything he performed on our HVAC unit."
Response time5 hrs
Response rate100%
13 neighbors recently requested a quote
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Avatar for Estes Services - HVAC Plumbing & Electrical
Estes Services - HVAC Plumbing & Electrical
4.5(
668
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Suwanee, GA and surrounding areas

Approved

In business since 1949

Free estimates

Emergency services offered

"Austin was the best. Professional. Knowledgeable and timely. This is my go-to HVAC company"
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+31

Response time5 hrs
Response rate100%
33 neighbors recently requested a quote
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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 Suwanee, GA and surrounding areas

Approved (Corporate)

In business since 1898

Free estimates

Emergency services offered

"We quit using them because their service fees were too high. The guy who put the air conditioner was excellent."
Moncrief Truck
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1 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Rapid Hvac Services Inc.
Rapid Hvac Services Inc.
5.0(
9
)
Central Air Cleaner - Repair or Service

Serving Suwanee, GA and surrounding areas

Approved

In business since 2020

Credit card accepted

Offers commercial services

"This company was amazing Corey was very helpful and knowledgeable I definitely recommend rapid hvac"
Response time12 hrs
Response rate100%
20 neighbors recently requested a quote
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All Seasons Heating and Air
4.8(
97
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceDuctless Mini-split A/C - Install or Replace+5 more

Serving Suwanee, GA and surrounding areas

Approved

Super Service Award Winner

In business since 1978

Free estimates

Credit card accepted

"Bobby came out and installed a complete Trane system and even relocated the furnace and A/C compressor to a more sensible location. The installation crew was polite, professional and efficient. The new heating and air system works flawlessly. Best service I have ever gotten from a HVAC company ever!"
Response time8 hrs
Response rate88%
11 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

You need to know the square footage of your home first. Multiply that number by 20, which will get you the BTUs (British Thermal Units) needed to cool your home efficiently. Homes up to 1,000 square feet usually need a 1.5-ton unit; homes 1,000 to 1,200 square feet usually need a 1.75-ton unit, and homes 1,200 to 1,400 square feet usually need a 1.9-ton unit. Talk to a local pro for more specific advice on your home. 

On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours.

The simplest indicator is how long it’s been since your last tune-up. You should schedule an annual AC tune-up each spring. Beyond that, there are multiple signs that your AC needs a quick check by a professional. These issues include higher-than-average energy bills, decreased air flow from vents, higher indoor temperatures, and an air conditioning unit that stays on all the time or frequently turns on and off.

The best time of year to purchase or replace an HVAC system, including components like an air conditioner or furnace, is during the off-season—spring and fall. During these periods, HVAC professionals are less busy than in summer and winter, when extreme temperatures create urgent demand. Shopping during the off-season can lead to savings of 10% to 15% on an AC unit and allows you more time to find the best deal and other cost-saving incentives. Typically, air conditioning units go on sale in the fall after demand drops, while furnace prices tend to decrease in the spring.

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak. 

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

The Suwanee, 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.

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