Local Reviews

Rated 5.0 out of 5 stars based on 158 customer reviews

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.


Map of Bellbrook, OH

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!


Map of Kettering, OH

Great service




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


Map of Dayton, OH

Fix AC unit




Very good experience


Map of Dayton, OH

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.


Map of Dayton, OH

Friendly quick service




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


Map of Dayton, OH

Great service, polite and experienced technician





Map of Dayton, OH

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!


Map of Kettering, OH

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.


Thank you Extreme!





Awesome service





Incredible professionals




Mike & Caleb were AMAZING & efficiencient. Their customer service and flexible scheduling was superior! Highly recommended their services!


Great Experience!




Mike and Caleb cleaned our ductwork. They were fast, professional, polite and did a great job. They even showed us before and after pictures of their work and showed us how we can further improve our indoor air quality. I highly recommend Extreme’s One Hour!


Great service for a very reasonable price!




Company was on-time, very thorough, and even went above and beyond to show us some problem areas with our vents that another company had missed when installing them. The guys were very kind and cleanly, and took the time to make sure they had done everything and left the place looking like it did when they arrived. Very pleased and would recommend to anyone needed heating, air-conditioning, or vent cleaning service!


Great service, good team, courteous and polite





Great work fast service




One hour is the best


Extreme's One Hour H&A/C Semi-Annual Service




Service was excellent. E-mail invoice leaves much to be desired. Way too small - microscopic type. Did not accurately portray signatures.


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
Michael T.

Michael T.

Replaced contractor and set charge for proper cooling

Near Lantz Rd, Dayton, OH 45434
Michael T.

Michael T.

Changed bad capacitor and fuses. Test ran the system and checked motor amperage

Near Meriline Ave, Dayton, OH 45410
Michael T.

Michael T.

Changed bad capacitor on the holiday weekend

Near OH-4, Dayton, OH 45417
Michael T.

Michael T.

Replaced bad capacitor to restore cooling

Near Grace Cir, Dayton, OH 45431
Michael T.

Michael T.

Replaced bad capacitor

Near Tara Trail, Dayton, OH 45434
Michael T.

Michael T.

Replaced shorted contractor

Near Templehurst Pl, Englewood, OH 45322
Michael T.

Michael T.

Replace bad capacitor and changed the air filter and showed customer the reason for failure

Near Skylark Dr, Englewood, OH 45322
Anthony F.

Anthony F.

Inspect duct work/CC Tune Up

Near Hunters Ridge Blvd, Dayton, OH 45434
Michael T.

Michael T.

Replaced shorted contractor and enrolled customer in a preventive maintenance program

Near Rand Ave, Moraine, OH 45439
Anthony F.

Anthony F.

Service Call - no cool

Near Pacer Trail, Dayton, OH 45434
Anthony F.

Anthony F.

Confort Club Tune Up

Near Mengel Dr, Kettering, OH 45429
Michael T.

Michael T.

Leak repair and air balancing with adding additional duct work

Near Kitridge Rd, Dayton, OH 45424
Michael T.

Michael T.

No cool. Found melted low voltage wiring going into the outdoor unit. Cut and repair connections. System is operating properly.

Near Catkin Ct, Waynesville, OH 45068
Anthony F.

Anthony F.

Comort club tune up

Near Greenburn Rd, Beavercreek, OH 45434
Michael T.

Michael T.

Performed system maintenance and optimization

Near Powell Rd, Dayton, OH 45424
Anthony F.

Anthony F.

Comfort Club Tune Up

Near Westminster Dr, Beavercreek, OH 45431
Anthony F.

Anthony F.

Comfort Club Tune Up

Near Monroe St, Troy, OH 45373
Anthony F.

Anthony F.

Near E Pike St, Christiansburg, OH 45389