Local Reviews

Rated 5.0 out of 5 stars based on 166 customer reviews

Map of Xenia, OH

Very Professional Service




Men were on time in the morning. Did a great job in installing our new furnace/AC system. They wore shoe covers so they wouldn't get floor dirty when they came in. They cleaned up very well after finishing the job. Highly recommended!!


Map of Springfield, OH

Non stop hard workers




Great employees but I would never have this done again or recommend having this done to anyone. We worked and worked to.clean up all the dust on floors and furniture. Great guys but the results were extremely disappointing. Could not set on leather couch until after all the dust was removed and it was a lot. Never again would I have this done. Still the men worked very hard and are very nice people but I was not expecting such a mess


Map of Dayton, OH

Great service! Good price




Very professional young men , very thorough job seemed very knowledgable of their job and overall experience of furnace work. Would absolutely refer them and welcome th em back for other issues . Cory and Steve did a great job for me..best of luck to them both.


Map of Dayton, OH

Shopped around and this was the best price and service by a long shot




Incredible service and the workforce was very knowledgeable and attentive. Secretary on the phone was very polite and answered every question clearly. Service technicians Cory and Steven we're on time, very professionable, and accommodated special request. Cleaned up my ducts with very minimum dust, which is a huge plus. Best price with excellent service, I will definitely use this service again.


Map of Dayton, OH

Great service




Corey and Stephen are both very professional. They were clean and wore shoe covers the whole time. I highly recommend this company.


Map of Beavercreek, OH

Duct cleaning




Awesome job!!!


Map of Xenia, OH

Friendly service techs!




The 2 guys that cleaned our ducts out were so good! They got right to work. Explained everything they were doing and worked fast. They were so friendly to my kids asking them about their day and answering their questions. After they were done they explained our oil furnace and how to switch to propane. Very helpful and knowledgeable. Great service techs!


Map of Fairborn, OH

Repair - Return Duct Collar




Nice crew, quick installation, minimum mess


Map of Dayton, OH

excellent service and advice about surge protection




very pleased with the 2 technicians who came to my house and serviced my furnace


Map of Dayton, OH

Great service




Asked us about several items we needed changed.


Fantastic Service Right When I Was in Need!




Online reviews and family recommendations led me to Extreme's One Hour Heating & Air Conditioning services. I'm very grateful that they did! The technician, Michael T., was outstanding. He was friendly, very knowledgeable, and explained everything in a manner in which I could understand. He was super-prompt, he did only what truly needed done, and explained ways for me to better maintain my own AC unit. He also suggested I consider having my units serviced from time to time due to their age, but recommended I wait until there was a special going on. He also was very friendly with my incredibly hyper dog, who was very happy to jump all over him. To me, that all speaks to top-notch service. I know now that the only call I need to make if I'm having trouble with heating & air is to Extreme's One Hour Heating & Air Conditioning. Thanks again, Michael!


Great service




Knowledgeable, friendly, felt he was honest, answered questions fully,


Fix AC unit




Very good experience


Awesome price, great service




Emergency call on a holiday! Fast response time great price. Got me fixed an the house cool quickly. I'm so grateful for everything the repairman did. An will be having him back out to do more work on some upgrades. Again I cant thank them enough for the great customer service.


Friendly quick service




Michael was professional and prompt. He even came out on a holiday weekend.


Great service, polite and experienced technician





Quick response and good service!




Our AC went out, I called in the late morning and the service tech came in about an hour. He diagnosed the problem and fixed it. I decided to buy the service program because our unit is getting old. Very good existence!


Anthony is very friendly and competent




You have taken care of me reliably for years.


Great service and very prompt - Came within hours of my call




The ServiceTech. - Anthony - Was very professional and explained everything he did and why. I would rate him 5 stars plus.


Great Service




Quick response and technician (Mike Treadway) was very honest and quick at fixing the problem. Would highly recommend this company and technician.


Great mechanical knowledge and customer service




Extreme One Hour is our go-to company for A/C services because we haven't found anywhere near us with as good customer service with value. Michael, specifically, is our requested tech. He provides a lot of background knowledge that we wouldn't be aware of and we trust his recommendations and because he's straight forward about what's really needed. It's nice not feeling like a car salesman walked into our living room to sell us a bunch of things we don't need. I appreciate interesting that Extreme One Hour is truly looking out for our best interests.


Professional service and honest answers




Our tech, Michael Treadway, did a great job repairing our blower unit. He was able to quickly diagnose the problem and give honest recommendations about how to proceed. He explained the pros and cons of all of our options and helped us get set up with the best motor for our homesize. I have recommended One Hour Service to all of my coworkers who have had AC/Heat issues and any time I need service in the future I will request Mr Treadway come out. Its refreshing to have a someone who knows what they are talking about and gives straight answers and not just trying to sell the most expensive equipment.


Mike was great. Give him a raise 🙂





Good job!





Knowledgeable Techs




Since my HVAC system was installed by Extreme One Hour Htg & AC, I have taken advantage of their spring and fall system checks, and just had my ducts cleaned out. Service has been prompt, professional and always pleasant. When I schedule a service call, I know it will be done correctly, and the cost is very reasonable.


Judd H.

Judd H.

Near June Dr, Xenia, OH 45385
Kevin V.

Kevin V.

Humidifier replacement

Near Claydor Dr, Dayton, OH 45431
steven w.

steven w.

Duct cleaning.

Near Liberty Ct, Xenia, OH 45385
Cory W.

Cory W.

Duct cleaning/full system

Near Glastonbury Ct, Middletown, OH 45005
Cory W.

Cory W.

Full system

Near Blacksmith Ln, Dayton, OH 45434
Cory W.

Cory W.

Duct cleaning

Near New Carlisle Pike, Springfield, OH 45504
Cory W.

Cory W.

Duct cleaning

Near New Carlisle Pike, Springfield, OH 45504
Cory W.

Cory W.

Duct cleaning

Near New Carlisle Pike, Springfield, OH 45504
steven w.

steven w.

Duct cleaning.

Near N Fairfield Rd, Dayton, OH 45434
steven w.

steven w.

Duct cleaning.

Near Coventry Rd, Dayton, OH 45410
steven w.

steven w.

Duct cleaning.

Near Walnut Grove Ln, Dayton, OH 45440
Kevin V.

Kevin V.

Ptu

Near Hoop Ct, Bellbrook, OH 45305
steven w.

steven w.

Duct cleaning.

Near Katherine Dr, Dayton, OH 45434
Kevin V.

Kevin V.

Humidifier install.

Near Colechester Ct, Dayton, OH 45459
Dayton, OH - Humidifier install.
steven w.

steven w.

Duct cleaning.

Near Danern Dr, Beavercreek, OH 45430
steven w.

steven w.

Duct cleaning.

Near Jasper Rd, Xenia, OH 45385
steven w.

steven w.

Re connecting duct work and re insulating duct work in attic.

Near Grierson Pl, Fairborn, OH 45324
Bobby R.

Bobby R.

Winter tune up

Near N Fairfield Rd, Beavercreek, OH 45434
Michael T.

Michael T.

Schedule maintenance

Near Atchison Rd, Dayton, OH 45458
Michael T.

Michael T.

No Heat. pulled and cleaned burners and flame sensor. Ordering new igniter

Near Highmont St, Dayton, OH 45432
Michael T.

Michael T.

Routine maintenance and Surge Protection

Near Buckingham Rd, Dayton, OH 45419
Michael T.

Michael T.

Removed dirty air filter and changed dual capacitor

Near Hickory Ln, Waynesville, OH 45068
Michael T.

Michael T.

Completed preventative maintenance. Replaced weak igniter and changed humidifier panel

Near Greenstone Ct, Dayton, OH 45430
Michael T.

Michael T.

Bad capacitor. Customer will call at a later date for preventative maintenance

Near Wilmington Pike, Bellbrook, OH 45305
Michael T.

Michael T.

Found bad capacitor due to dirty outdoor coil. Also instructed customer to put a filter in his space-pak u it

Near Locust Camp Rd, Kettering, OH 45419