2017 EBSCO Research Best Pick
678-341-2039

Knight Air Conditioning & Heating Co.

15th year as a Best Pick

  • A-Rated
  • Verified License(s)
  • Verified General Liability
  • Verified Workers' Comp

"Our mission is to provide our customers the best possible service and highest-quality installations in a manner that will encourage them to recommend us to others. We are 100 percent focused on customer satisfaction. Our attention to detail and total customer satisfaction guarantee assure a pleasant experience for our customers."

Tim Loudermilk | Co-owner

Areas Served:

Gwinnett/East Metro

  • Services Offered
    Knight Air Conditioning & Heating offers heating and air conditioning service for both residential and commercial customers. The company recommends and installs Trane replacement comfort systems. Knight specializes in redesigning and retrofitting problem duct systems.
  • Warranty
    The company guarantees all repair work for one year.
  • Distinctions
    The company employs NATE-certified technicians and is a Trane Comfort Specialist.
  • Company History
    Founded in 1971, Knight Air Conditioning & Heating is a privately owned company. Tim Loudermilk and Joel Aderhold, both native Atlantans, own and operate Knight. Joel and Tim each have more than 35 years of experience in the heating and air conditioning business. According to Joel, many of Knight's employees have been with the company for more than 20 years.
  • Licenses
    CN208407

Select Quotes from Customer Interviews

A selection of 422 homeowner reviews:


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I am very pleased with Knight Air Conditioning & Heating. I've never had any complaints. My family has been using them, and my parents used them. They do everything that I need them to do with heating and air, and they have done it 100 percent plus. I love everything about them. There is nothing whatsoever that I could say to complain about their work. I would rate my overall experience with them as an A+.
They do A/C work for me, and they are personal and professional. They're an A. They're the best I've ever experienced.
Last year, they replaced a compressor for me on the air conditioner, and after that, it has been primarily maintenance. They are reliable and courteous. They are just good people. I would rate Knight the highest they can be rated—A+.
The bottom line is they do excellent work in all categories.
They are really great. They are super nice and easy to work with. They put in my HVAC system last year, and then they came and replaced the air filter for me in January. They are replacing another one in July, I think. I would grade the overall experience as an A+.
Knight put in a new air conditioner. I liked that they worked. Overall, it was excellent work that they did, and we haven't had any problems with it.
They've done work several times for me, and they put in a whole new air conditioner system. They maintain it. I have a service contract with them, and they come twice a year and service it. Also, they take care of the air conditioner where I work. One of the companies right across from me had them there Monday for service. I love that they're punctual. They come when they say they're going to and very seldom do they not have parts they need, which I think is great because it doesn't put you off. I just think they're very well prepared. I'd give them an A+ overall. I recommend them all the time.
They did a good job. They came out and did my seasonal maintenance for the beginning of the air conditioning season. Actually, they were on time—they were here when they said they were going to be here. They did what they needed to do, everything worked fine, and it was just really easy. I'd give Knight an A+ rating. I have already recommended them.
Knight replaced the furnace and the air conditioner. I've used them in the past, so they're very reliable. They've done a good job in the past. I would give them an A+ overall.
I had to have a new evaporator coil. They were very professional and very knowledgeable. They did great work. Overall, I'd give them an A+ grade.
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