Excellent Heating & Air Services Since 1986.

We are your #1 Kennesaw heating and Air Company

Now Hiring 2 HVAC Service Technicians

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Serving Homeowners & Business In The Following Cities:
Acworth | Dallas | East Cobb | Hiram | Holly Springs | Kennesaw | Marietta | Powder Springs | Woodstock

Expert HVAC Kennesaw, GA

D McKeon Heating & Air Conditioning has been the most trusted heating & AC company since 1986. We’re a family-owned and operated company that is fully licensed, insured, and certified.

Medal of Excellence Award Winner 2020. This is a special award that we received from Bryant. We are one of the top 21 Bryant Factory Authorized Dealers from over 33,000 Bryant HVAC Dealers in North America that has won this prestigious Medal of Excellence Award.

Best HVAC Company Kennesaw, GA
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Google Rating
Based on 109 reviews

Heating & AC Repairs
Best HVAC Company Kennesaw, GA

We repair all makes & models of heating & air systems.

Heating & AC Maintenance

Planned maintenance can help save you money.

HVAC Installations

We are a Bryant Factory Authorized Dealer!

Financing Options

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HVAC Financing Kennesaw GA

Click above to make a payment or apply for Payzer Financing

We Are The #1 HVAC Kennesaw, GA Heating and Air Choice.

Why Choose Us For HVAC In Kennesaw, GA?

Serving homeowners & business since 1986. We are the team to trust!

Kennesaw Heating and Air Company

24 hour emergency services

Kennesaw Heating and Air Company

trustworthy team

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highly rated company

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free replacement estimates

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highly trained technicians

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33 years in business

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family owned and operated

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drug tested employees

Our Recent Google Reviews

I highly recommend McKeon. They were professional and did an awesome job. They are experienced in this profession for many years and know what they are doing. The job was done quickly and properly. Would definitely recommend them.
Judy Conley
19:00 15 Mar 23
We recently had our AC/Heating system replaced by your company. Bob Best did the presentation and signed us up for the installation. He did an excellent presentation, explaining the heating and the cooling systems, and offered a diverse range of system types and options, with a variety of prices. He also went over the financing options for the different systems. He did an excellent job throughout the installation and answered all of our questions. The crew that did the work was also very good. They were at our home on time, were courteous, cleaned up and did a proper installation. We requested some duct modifications be made after the installation and Bob and the crew came back and did a great job.We highly recommend Bob and your company to anyone looking to replace their AC/Heating systems. Over the years, this is the fourth time we have had the system replaced and Bob has been the best in every way. He is very knowledgeable about the systems, has hands on experience, which is invaluable and treated us like family. He was not just another salesman selling the product. He has been there for us.
Darrell Emerick
16:40 06 Sep 22
Great customer service. Laurie and Preston patiently walked me through any troubleshooting ideas before scheduling service. Much appreciated 👍.
Jose Torres
19:03 28 Jul 22
Phil Cannizzaro
20:54 29 Mar 22
My furnace quit heating on a Friday night. not a true emergency as the downstairs unit was keeping the temp livable. I call and left a message and was called back in just a few minutes. the tech very patiently and politely walked me through a few things to try. And gave me an option for service now or wait til Monday (which is what i did). I received a call Monday at just past 8AM. again very friendly and polite and a tech came out by noon. I felt like i was given very good info by the tech and we determined that the 20 year old system was better replaced than repaired. On Wed They came out ON TIME again and installed. a good looking job and the 2 service men were, again, very polite and had the furnace swapped in 3 hours. At which point the Service manager and the original tech came out and examined the install and commissioned the furnace .. then helped walk through programming the new 'smart' t--stat.. they also installed a CO2 alarm and left a couple filters ... all in all I am very happy with the whole transaction .. Highly recommend
roger brainard
21:54 23 Feb 22
Had no heat on one of the coldest nights of the year .. called McKeon Friday morning and they came out before noon. The serviceman knew exactly what was wrong, put in a new capacitor and changed the filters. He explained everything to me and showed me what he did and why.. and explained just how the unit works. I was amazed he took such care to explain everything! Thank you Preston you deserve an award for your excellence. I will always call on this company if I should ever need to, I can trust that they will do an excellent job at a very fair price !
Gloria Jartos
17:40 11 Jan 22

Licensed and Certified HVAC Kennesaw, GA

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Kennesaw Heating and Air Company
Kennesaw Heating and Air Company
Kennesaw Heating and Air Company

Our satisfied customers:

Frequently Asked Heating and Air Questions

How Do You Know When Your AC Needs To Be Replaced?
Is It Necessary To Service AC Every Year?
How Much Does It Cost To Replace A Central Air Conditioning Unit?
What Maintenance Does An Air Conditioner Need?
Why Is My AC Running But Not Cooling?

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At D. Mckeon Heating and Air we are proud to be your local choice for HVAC needs in Kennesaw, GA. Our experienced technicians put your comfort first. From AC repair to heating system replacement we have you covered. Trust our experience as the #1 HVAC company in Kennesaw! Call our team today to schedule your heating and air appointment.

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