Heating & Air Conditioning Services in Cobb County, South Cherokee County, and East Paulding County including Kennesaw, Acworth, East Cobb, Marietta, Woodstock, & surrounding cities.

HVAC Excellence since 1986

D. McKeon Heating and 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.

Google Rating
Based on 87 reviews
Facebook Rating
Based on 15 reviews

Heating & AC Repairs

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

Heating & AC Maintenance

planned maintenance can help save you money.

HVAC Installations

We are a Bryant Factory Authorized Dealer!

Financing Options

Our Recent Facebook Reviews

Excellent service. Was done faster than expected and pricing was reasonable. Highly recommend!
Phil Cannizzaro
15:26 08 Jun 20
So happy we chose McKeon!! Bob was awesome and was very knowledgeable about our old system. Jacob and Brian made the installation go so smoothly! highly recommend this awesome firm.
Jane Naystatt Poster
21:56 02 Jun 20
Thanks for the quick turnaround and getting my AC back up and running. I’mA customer for life! I highly suggest calling Mckeon for HVAC needs.
Brian Babyak
00:38 30 May 19
The professionalism of D McKeown heating and air is unquestionable. After making a decision to use this service company a year ago I have never been disappointed in their customer service. If you are shopping around for an HVAC company, I don’t think you could possibly not consider using D McKeon.
Reggie Martin
03:24 13 Oct 18
Fantastic company! Our for ace dies New Year's Eve a d we already habe a replacemet. Clean, kind and cost effective. Will used for all our future needs!
I have used McKeon for over 15 years and they are very reliable and have always given me great service.
It was refreshing to find a company that actually seemed to care about customers. DMcKeon and staff are very professional and got the job done on time, on schedule and at the price they had quoted. I had a home warranty company contract that was cancelled immediately after seeing what honest service felt like. I highly recommend their services.
Reggie Martin
00:15 04 May 17
Excellent service and people that really care. I have used D. McKeon for over 20 years now. My 16 year old air conditioner was on its last leg and they installed a new one for me as soon as possible. I will always recommend Dennis and his staff. Thanks to all for helping me out. You are the best.
Beth Hilgert Liotta
16:22 08 Sep 16
Always excellent service and reliable! Thank you for coming out last week, after hours, to make sure our A/C got fixed right away and we wouldn't have to suffer in the heat!
Sue Loftus McBride
19:30 19 Jul 16
Excellent company that gives personalized care. They go above and beyond when you have an issue rather than run like some companies. We bought 2 units from them and had unfortunate issue with install of one causing leak and damage. Bob and staff went beyond to get everything back to normal as fast as possible. Mr. Mckeon even came to our home himself for initial consult and was incredibly nice and attentive. To top it off, when they learned we were Cubs fans, they went out of their way to get us great seats to the CUBS vs BRAVES game! Special thanks to Mr. Mckeon and Bob for these tickets!! It made a great family memory for us!. The entire staff makes you feel like family!
Rita Neitzel Tafelski
15:40 19 Jun 16
I love the staff at D. McKeon Heating & Air. They are all very caring and are truly interested in doing what's best for the customer! I highly recommend the McKeon team!
Michele L Smith
13:05 25 Aug 15
Tracey Floyd Viars
13:30 16 Jul 13

Why Choose Us?

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

24 hour emergency services

trustworthy team

highly rated company

free replacement estimates

highly trained technicians

33 years in business

family owned and operated

drug tested employees

Our Recent Google Reviews

Conrad Sikorski
17:02 29 Jun 20
Kyle Heaton
13:45 10 Jun 20
The technician was prompt and efficient. Gave us some great tipst keep our system running the best way possible.
- Steve -
15:17 09 Jun 20
Excellent service. Was done faster than expected and pricing was reasonable. Highly recommend!
Phil Cannizzaro
15:25 08 Jun 20
Kile Williams
16:36 29 May 20
Excellent customer service, knowledgeable service specialist, great value — professional all the way. Highly recommend.
Ellen K.
00:57 29 May 20
Great company. Honest staff.
Todd Lee
22:43 24 May 20
McKeon has been our preferred service provider for many years. Their personnel know their trade and do not leave the job without ensuring that every issue has been addressed. In almost all cases, they have taken actions that were not precisely part of the job, but made the system more reliable than it was prior to the service.
Eric Pearson
15:09 19 May 20
The McKeon service was extremely responsive and professional. My cooling process resolved in one afternoon.
Jim Murphy
15:51 18 May 20

Our Recent Advice Articles

Should you get a Programmable Thermostat in my Home

Why Install a Programmable Thermostat Programmable thermostats have become increasingly popular over the last couple of decades and therefore thousands of homeowners are appreciating the benefits they offer. From making your home more comfortable to saving you money each month, there are many reasons why you should consider installing a programmable thermostat in your home.…

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Do you have Uneven Temperatures in your Home

No More Uneven Temps with Ductless Systems Everyone expects their heating and cooling systems to be able to maintain consistent temperatures throughout your home. Unfortunately, central HVAC systems have a difficult time doing just that. There are many reasons why your home’s temperature might vary from room to room, including: Why Your Home Has Uneven…

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Does Your Air Conditioner Need to be Repaired

Air Conditioner Repair Services with D. McKeon Heating & Air As a homeowner, you should be aware of some of the telltale signs that indicate your Air Conditioner needs to be repaired. This can go a very long way to help you prevent significant and costly repairs down the road. Here at D. McKeon Heating…

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Licensed and Certified

Our satisfied customers: