4.6 
599 *The Angi rating for Heating And Air Conditioning Service companies in Mcdonough, 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 Mcdonough, 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 November 11, 2026
Serving Mcdonough, 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."
Serving Mcdonough, 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"
+31
Serving Mcdonough, 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."
+35
Serving Mcdonough, GA and surrounding areas
Approved (Corporate)
In business since 1898
Free estimates
Emergency services offered
"The technician was on time and courteous. My A/C wasn't blowing any cold air, so he checked the air handler first, then checked the heat pump. The freon was very low, 1.5 pounds in a 3.5 pound system, so he charged the unit with freon. The air was fine after that. He did a check for leaks from the evaporator coil "on the house" and showed me that the coil was losing coolant from several spots. He recommended that an engineer come have a look about a system replacement since it was impossible to tell how long the coolant was leaking - the main issue being that the coil had several leaking spots.
Overall the service went well. The price was a function of the high price of freon ($90 or so per pound), so it could have been any HVAC company getting dinged on the price issue.
"
Serving Mcdonough, GA and surrounding areas
Approved
In business since 1998
Free estimates
Credit card accepted
"Excellent service and quality of work. Brought everything that was needed to remove and reinstall my ac system. Exceeded expectations by far! Friendly and excellent prices to match. I will never use any other company!"
Serving Mcdonough, GA and surrounding areas
Approved
In business since 2012
Credit card accepted
Customers say: True professional
We have over 28 years of industry experience, and is dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on honesty and integrity. We specialize in Central A/C, Heating and Furnace systems in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction!
Serving Mcdonough, GA and surrounding areas
Approved (Corporate)
In business since 1959
Free estimates
Credit card accepted
"The guy Mike came out to my house to fix the thermostat that was installed and I was very impressed with the knowledge he had about the equipment"
Serving Mcdonough, GA and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"Bruce was very professional, on time and got the job done in a timely manor. He also educated me about my HVAC, and the price was reasonable."
Serving Mcdonough, GA and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
Pillar is a locally owned HVAC company providing reliable residential and commercial heating and air conditioning services across South Atlanta. We specialize in system repairs, full replacements, preventative maintenance, and emergency service for homes and businesses.\n\nOur team delivers disciplined, professional workmanship on every project. We focus on accurate diagnostics, clear communication, and long-term solutions that support efficiency, reliability, and performance.
Serving Mcdonough, GA and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Credit card accepted
Offers commercial services
"Yahav was the service technician that Clean Air Atlanta sent and he not only did a really great job on the work: he also saved us over $1000 by being HONEST about work our fireplace did not need, that another company had said we needed. I highly recommend this company!"
+102
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