We Are The #1 HVAC 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
Expert HVAC Kennesaw, GA
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.
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.
Google Rating
4.9
Based on 104 reviews
D. McKeon Heating & Air Conditioning
4.9
Phil Cannizzaro
20:54 29 Mar 22
roger brainard
21:54 23 Feb 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
Gloria Jartos
17:40 11 Jan 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 !
joel rago
20:53 26 Nov 21
Very prompt very professional I couldn't have asked or expected better service than I received from McKeon heating and airThe service tech was knowledgeable and got the job done
Antonia DeCarlo
19:05 12 Nov 21
Most professional company I've dealt with in a while. I needed my HVAC units inspected ASAP due to selling of my house. Shannon was very helpful in answering all my questions and getting a tech out immediately.Preston came to the house, serviced and made minor repairs the same day He also went above and beyond spoking to the buyers answering theirconcerns as well. Can't say enough about the wonderful experience I had dealing with D. McKeon Electrical!Thank you Shannon and Preston!
Alec Jones
15:01 12 Oct 21
So happy to have found this company. New furnaced installation was perfect with one little blip which they took care of first thing next morning. Family owned and operated and it shows. Great people!!
Rosemary Pastula
12:30 22 Sep 21
Ken Wyett
16:03 15 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.
Wayne Cruse
13:00 30 Jun 21
Luis Guasch
22:00 07 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!
Victor Fishman
20:55 02 Nov 20
B T (zzyzxman)
17:05 18 Sep 20
My review is sort of mixed here. After extensive research to have an evaporator coil replaced including labor freon parts etc... D. McKeon was by far the most expensive of 5 different HVAC companies @ $2,500 to replace an evap coil. Thats minimum $700 more for the same work, and i have done my research(you would think returning customers would at least get some type of break). I have used DMckeon for maintanence and tune ups and they do decent work, but good grief thats pricey as heck, and other HVAC companies thought so as well. Anyway, do your research as i did and am able to purchase the coil for about $600 and will have it installed by an old Army buddy I served with in the middle east, an HVAC tech, for free. Should not cost that much. DO YOUR RESEARCH AND GET LOTS OF QUOTES!
Davy McSpadden
03:25 05 Sep 20
Kim Lorton
18:16 21 Aug 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.
Britt Pearce
23:48 20 Aug 20
Responded very quickly. Found the problem in a short time and able to make repair on the spot. Tested system before leaving. Very pleased with office help and technician service.
Candy Callas
16:38 18 Aug 20
When our old AC went out on a hot Saturday night in August, we thought it would take forever to get relief. To our surprise, McKeon came out Sunday morning, made interim repairs to get us through and installed a new system three days later! On the day of the install, their supplier ran into a problem and didn't have the unit we ordered - so McKeon actually upgraded us to a top of the line model for the same price! We have never had such stellar customer service! The people are knowledgeable, friendly, great to work with and the new AC is incredible - quiet, highly efficient, works like a charm. We recommend highly!
Charlotte Marie
12:57 04 Aug 20
D. McKeon Heating & Air Conditioning has been my HVAC expert of choice for almost 20 years. I have a twice yearly maintenance contract with McKeon and am happy to say my HVAC is still working - thanks to the excellent service this company provides. The staff at McKeon always goes above and beyond the call of duty.
Ed D
18:40 21 Jul 20
Preston, the tech McKeon sent to my house was very professional, personable, capable and thorough.I will use McKeon in the future based on his performance.
Conrad Sikorski
17:02 29 Jun 20
Kyle Heaton
13:45 10 Jun 20
Steven Howard
15:17 09 Jun 20
The technician was prompt and efficient. Gave us some great tipst keep our system running the best way possible.
Phil Cannizzaro
15:25 08 Jun 20
Excellent service. Was done faster than expected and pricing was reasonable. Highly recommend!
Kile Williams
16:36 29 May 20
Ellen K.
00:57 29 May 20
Excellent customer service, knowledgeable service specialist, great value — professional all the way. Highly recommend.
Todd Lee
22:43 24 May 20
Great company. Honest staff.
Eric Pearson
15:09 19 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.
Jim Murphy
15:51 18 May 20
The McKeon service was extremely responsive and professional. My cooling process resolved in one afternoon.
Cornerstone Digital Printing
16:32 14 May 20
Great company, super nice and knowledgeable staff, great prices and always on time. What else could you ask for? I use D McKeon for my businesses and home and wouldn't consider anyone else.
Jesse Fordham
02:30 02 May 20
ruta reynolds
13:09 21 Apr 20
Randy Russell
14:45 20 Apr 20
We have used D. MCKeon for 8+ years. They have always been professional and trustworthy. B. Best and the rest of the staff are top notch, I highly recommend them for anyone that is looking for good quality work at a fair price.
Harold Noll
18:35 16 Apr 20
From front office to service techs, I have found this group 5 star in each category.... Crystal, Preston and Kevin.
Phyllis L. Seitz
13:07 12 Apr 20
I have done business with McKeon since 2008,And they have never let me down! They kept my HVAC system running optimally!
Todd Lee
20:21 06 Apr 20
Very good, honest service. They don't try to offer you products/services that you don't need.
Joe Borden
22:05 31 Mar 20
Great value and very timely and great installation!
Richard Sullivan
21:43 17 Mar 20
There couldn't be nicer and more knowledgeable people in the HVAC business than D McKeon. Thank you guys and Bob.
donald mikolasy
17:26 06 Mar 20
Kevin from D. McKeon is the best.....knowledgeable, hard working, and very personable....a real pro who knows his stuff!
James Hawk
20:32 21 Feb 20
Martha Reed
20:11 19 Feb 20
Pleasant and punctual. My systems are well maintained at a reasonable price.
De Lenning
13:24 19 Feb 20
Good people to do business with.
Laura Wilmot
15:43 18 Feb 20
Fast friendly service. Fair prices. I've used them for years. Highly recommend
Mark Saperstein
21:34 10 Feb 20
The gentleman who does our regular maintenance and repairs is always punctual, professional, and clearly explains what needs to be done in a manner I can understand. I’m happy to recommend D. McKeon Heating and Air to friends, family, and anyone else in need of this kind of service.
Julie R.
00:31 31 Jan 20
My initial introduction to this great company was with Bob who did my quote for me. Bob is not only extremely helpful and knowledgeable, but he is friendly and very easy to talk to. They were able to schedule me when I needed, which was right away. The installers were the bonus here. Jacob is a highly trained and skilled professional. I am positive this company sees the value in their best employees as they have been there a long time and speak very highly of it themselves. Thank you Bob, Jacob and team for doing such a great job. We will never use another company!!
Mark Ryan
18:06 21 Jan 20
The team at D. McKeon is excellent - top notch in all areas of Sales & Specifications, Installation, and Service.
Brittany Garrett
18:05 21 Jan 20
It hit 27° and of course our heat went out leaving us in a 55° and dropping house. I called D. McKeon because they had 5 stars (which we now know why) and were really close to us in Kennesaw. They were able to get to us within an hour and the technician who came out was quick and informative. He talked us through everything he found gave us helpful suggestions and had the heat back on in a matter of maybe 30 min.After he left my husband said that they would be the people we use from now on. (You don't know my husband but he is VERY hard to impress!) So this was very high praise. We both felt more knowledgeable and informed about our unit and what direction to take in the future.Thank you so much D. Mckeon!
Kimberly Yowell
18:39 15 Jan 20
Great service! We have a maintenance contract with them and we truly appreciate the very detailed service. Preston is the best!
Gary Reed
16:22 03 Jan 20
Very professional and very helpful.
Delores Perry
12:11 13 Dec 19
Doug LaVigne
20:23 03 Dec 19
Preston has been working with us for several years and at two houses. He is thorough and helpful.
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.
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.
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!
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.
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!
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!
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.
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.
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!
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.
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!
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!
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
Very prompt very professional I couldn't have asked or expected better service than I received from McKeon heating and airThe service tech was knowledgeable and got the job done
joel rago
20:53 26 Nov 21
Most professional company I've dealt with in a while. I needed my HVAC units inspected ASAP due to selling of my house. Shannon was very helpful in answering all my questions and getting a tech out immediately.Preston came to the house, serviced and made minor repairs the same day He also went above and beyond spoking to the buyers answering theirconcerns as well. Can't say enough about the wonderful experience I had dealing with D. McKeon Electrical!Thank you Shannon and Preston!
Antonia DeCarlo
19:05 12 Nov 21
So happy to have found this company. New furnaced installation was perfect with one little blip which they took care of first thing next morning. Family owned and operated and it shows. Great people!!
Alec Jones
15:01 12 Oct 21
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
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
Responded very quickly. Found the problem in a short time and able to make repair on the spot. Tested system before leaving. Very pleased with office help and technician service.
Britt Pearce
23:48 20 Aug 20
When our old AC went out on a hot Saturday night in August, we thought it would take forever to get relief. To our surprise, McKeon came out Sunday morning, made interim repairs to get us through and installed a new system three days later! On the day of the install, their supplier ran into a problem and didn't have the unit we ordered - so McKeon actually upgraded us to a top of the line model for the same price! We have never had such stellar customer service! The people are knowledgeable, friendly, great to work with and the new AC is incredible - quiet, highly efficient, works like a charm. We recommend highly!
Candy Callas
16:38 18 Aug 20
D. McKeon Heating & Air Conditioning has been my HVAC expert of choice for almost 20 years. I have a twice yearly maintenance contract with McKeon and am happy to say my HVAC is still working - thanks to the excellent service this company provides. The staff at McKeon always goes above and beyond the call of duty.
Charlotte Marie
12:57 04 Aug 20
Preston, the tech McKeon sent to my house was very professional, personable, capable and thorough.I will use McKeon in the future based on his performance.
Ed D
18:40 21 Jul 20
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.
Steven Howard
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
Great company, super nice and knowledgeable staff, great prices and always on time. What else could you ask for? I use D McKeon for my businesses and home and wouldn't consider anyone else.
Cornerstone Digital Printing
16:32 14 May 20
Jesse Fordham
02:30 02 May 20
ruta reynolds
13:09 21 Apr 20
We have used D. MCKeon for 8+ years. They have always been professional and trustworthy. B. Best and the rest of the staff are top notch, I highly recommend them for anyone that is looking for good quality work at a fair price.
Randy Russell
14:45 20 Apr 20
From front office to service techs, I have found this group 5 star in each category.... Crystal, Preston and Kevin.
Harold Noll
18:35 16 Apr 20
I have done business with McKeon since 2008,And they have never let me down! They kept my HVAC system running optimally!
Phyllis L. Seitz
13:07 12 Apr 20
Very good, honest service. They don't try to offer you products/services that you don't need.
Todd Lee
20:21 06 Apr 20
Great value and very timely and great installation!
Joe Borden
22:05 31 Mar 20
There couldn't be nicer and more knowledgeable people in the HVAC business than D McKeon. Thank you guys and Bob.
Richard Sullivan
21:43 17 Mar 20
Kevin from D. McKeon is the best.....knowledgeable, hard working, and very personable....a real pro who knows his stuff!
donald mikolasy
17:26 06 Mar 20
James Hawk
20:32 21 Feb 20
Pleasant and punctual. My systems are well maintained at a reasonable price.
Martha Reed
20:11 19 Feb 20
Good people to do business with.
De Lenning
13:24 19 Feb 20
Fast friendly service. Fair prices. I've used them for years. Highly recommend
Laura Wilmot
15:43 18 Feb 20
The gentleman who does our regular maintenance and repairs is always punctual, professional, and clearly explains what needs to be done in a manner I can understand. I’m happy to recommend D. McKeon Heating and Air to friends, family, and anyone else in need of this kind of service.
Mark Saperstein
21:34 10 Feb 20
My initial introduction to this great company was with Bob who did my quote for me. Bob is not only extremely helpful and knowledgeable, but he is friendly and very easy to talk to. They were able to schedule me when I needed, which was right away. The installers were the bonus here. Jacob is a highly trained and skilled professional. I am positive this company sees the value in their best employees as they have been there a long time and speak very highly of it themselves. Thank you Bob, Jacob and team for doing such a great job. We will never use another company!!
Julie R.
00:31 31 Jan 20
The team at D. McKeon is excellent - top notch in all areas of Sales & Specifications, Installation, and Service.
Mark Ryan
18:06 21 Jan 20
It hit 27° and of course our heat went out leaving us in a 55° and dropping house. I called D. McKeon because they had 5 stars (which we now know why) and were really close to us in Kennesaw. They were able to get to us within an hour and the technician who came out was quick and informative. He talked us through everything he found gave us helpful suggestions and had the heat back on in a matter of maybe 30 min.After he left my husband said that they would be the people we use from now on. (You don't know my husband but he is VERY hard to impress!) So this was very high praise. We both felt more knowledgeable and informed about our unit and what direction to take in the future.Thank you so much D. Mckeon!
Brittany Garrett
18:05 21 Jan 20
Great service! We have a maintenance contract with them and we truly appreciate the very detailed service. Preston is the best!
Kimberly Yowell
18:39 15 Jan 20
Very professional and very helpful.
Gary Reed
16:22 03 Jan 20
Delores Perry
12:11 13 Dec 19
Preston has been working with us for several years and at two houses. He is thorough and helpful.
Preventative HVAC Maintenance is Key Do you ever get worried when it is time to turn on your air conditioning for the spring? Everyone dreads the potential need for a service call, or their old system breaking right when it’s needed. Rather than crossing your fingers, call D. McKeon Heating & Air, to service your…
HVAC Zone System- Comfort is Key Most homeowners can agree—comfort in one’s home is dictated by the temperature. Cold homes in the winter are frowned upon, while cold homes in the summer are requested. An inefficient HVAC system, or a house divided over the thermostat, can benefit from an HVAC zone system. Do you ever…
Heat Pumps Will Keep You Comfortable Year-Round Heat pumps are the ideal choice for bringing comfort to your home through an electric energy source instead of gas. Your home is ensured to be warmed during our upcoming cold winter months and cooled during those hot summer months. This energy-efficient alternative is ideal for climates like…
