Home

Excellent Heating & Air Services Since 1986

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

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

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.


Best HVAC Company Kennesaw, GA

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.
 
Thanks goes to our many loyal customers, as we could not have done this without your support.
 
We really appreciate you choosing D McKeon Heating & Air year after year to take care of your HVAC needs.
 
Thank you,
 
Dennis & Laurie McKeon


Best HVAC Company Kennesaw, GA
Google Rating
4.9
Based on 100 reviews
Facebook Rating
5.0
Based on 14 reviews

Heating & AC Repairs
Best HVAC Company Kennesaw, GA

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

Heating & AC Maintenance
maintenance

planned maintenance can help save you money.

HVAC Installations
bryant

We are a Bryant Factory Authorized Dealer!


Financing Options

wells fargo financing banner


Click above to make a payment or apply for Payzer Financing


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.
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
Tracey Floyd Viars
13:30 16 Jul 13

Why Choose Us?

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

Kennesaw Heating and Air Company

highly rated company

Kennesaw Heating and Air Company

free replacement estimates

Kennesaw Heating and Air Company

highly trained technicians

Kennesaw Heating and Air Company

33 years in business

Kennesaw Heating and Air Company

family owned and operated

Kennesaw Heating and Air Company

drug tested employees

Our Recent Google Reviews

Rosemary Pastula
12:30 22 Sep 21
D. McKeon Heating and Air is an excellent choice if you’re needing a repair or looking to replace your HVAC system. Great service and follow-up, their HVAC techs are extremely knowledgeable and courteous. We had both our upstairs and downstairs systems replaced, and right now HVAC equipment is in short supply. D. McKeon Heating and Air went out of their way to locate the equipment needed for the replacement of our systems.
Ken Wyett
16:03 15 Sep 21
I have worked next door to D Mckeon for 13 years. My parents called me Sunday evening, air is not working. I called D Mckeon, Mrs Lori answered the phone, and took care of the appointment information. The technician showed up, and had the system repaired, and serviced within 1-1/2 hours, the very next day. Professional service, awesome pricing, and timely repair....5 plus stars!! Thx everyone!
Jason Green
22:25 20 Jul 21
Wayne Cruse
13:00 30 Jun 21
Preston the tech that came out was great. He found a hard to find freon leak during a PM maintenance! They are always great (D McKeon) but Preston was exceptional!
Luis Guasch
22:00 07 Jun 21
Victor Fishman
20:55 02 Nov 20
Davy McSpadden
03:25 05 Sep 20
We have been long time customers and like them really well!We usually have Preston, but Kevin came today and he is great also.
Kim Lorton
18:16 21 Aug 20

Our Recent Advice Articles

Humidity

Humidity Control

One of the least talked about but most important aspects of your comfort is humidity control. The summer humidity is way too high in our area, and the winter humidity is too low. Humidity can cause all kinds of trouble when it is high and when it is low. The solution is to maintain your…

Read More

Covid 19 and the Air Quality Inside Your Home

What’s The Air Quality In Your Home? “SARS-CoV-2 viral particles spread between people more readily indoors than outdoors. Indoors, the concentration of viral particles is often higher than outdoors, where even a light wind can rapidly reduce concentrations. When indoors, ventilation mitigation strategies can help reduce viral particle concentration. The lower the concentration, the less likely…

Read More

AC Replacement Near You

D McKeon offers AC Replacement Systems Temperatures are on the rise here in Georgia which means a fully functioning AC unit is as vital as ever. There is no worse feeling than being caught in the heat with no place to cool down. If your heating and air conditioning system is having issues, D McKeon…

Read More

Licensed and Certified

Kennesaw Heating and Air Company
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?

Why Choose D. McKeon Heating and Air?

#1 Kennesaw, GA Heating & Air Choice

Expert AC Repair

Quality Heating and Air Maintenance Service

Top-Rated Air Conditioning Installation