Heating & Air Conditioning Services in Dayton, Ohio

Do you need your air conditioner or furnace repaired or replaced?

Extreme’s One Hour Heating & Air Conditioning in Dayton, Ohio is a premier HVAC repair and replacement service provider. We take pride with our industry best “on-time guarantee”.  There is no reason to wait around at home for the technician to arrive, Extreme’s One Hour Heating and air Conditioning gives you convenient scheduling options and we will be there on time!  Never wait at home on us to arrive. We offer ½ hour call or text ahead to let you know the technician is on the way.  Call us now  937.426.7399

HVAC Repair in Dayton

Local HVAC Dayton Company with a National Backing

Locally owned and operated, our entire Dayton staff is ready to assist you the moment you call. You can expect the same service from the nearly 300 other One Hour Heating and Air Conditioning shops across the country. Being part of an organization as large as One Hour gives us leverage and backing with all the major brands such as Trane, Carrier, Lennox, Bryant, Honeywell, Goodman and Amana…and many more.  Being part of the One Hour Family allows us to stock our trucks like rolling warehouses carrying a large amount of parts and equipment so you don’t have to wait.  We also provide full service duct cleaning for you home or office.  Our professional staff will give you a free in home estimate and thoroughly explain the Duct Cleaning process.

Duct Cleaning Services in Dayton

Need a new HVAC system installed?

We are happy to provide you a free estimate, for your home or business, to replace your furnace, air conditioner, heat pump, or entire system. We carry many lines of equipment; we are a Trane Comfort specialist as well as Amana factory certified dealer. 

6-time Angies List super service award winner.   Dayton BBB Integrity Eclipse award winner.

Check out what our great customers have to say about us on Home Advisor, Facebook and Google!

Always Here When You Need Us!

  • Same day service and repair
  • Emergency service available 24/7
  • No overtime charges

Extreme's One Hour Truck Dayton, Ohio

Convenient Payment Options

  • Accept cash and check
  • Accept all major credit cards
  • 0% interest financing available

Military & Senior Discount

  • 5% Discount for Military and Seniors
  • Specials and Coupons Available
  • Click here to see our specials


Comfortable and energy efficient natural gas heat for your home with constant air circulation all year long.  Call us to learn more.

Heat Pumps

A dual purpose system from that heats your home in the winter and cools it in the summer.  Set up a free no cost estimate today!

Air Conditioners

We provide economic and efficient home cooling options from multiple manufactures. Get ready for summer.  Call us today to save!!

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Check out what our happy customers say about us…

Local Reviews

Rated 5.0 out of 5 stars based on 167 customer reviews

Map of Bellbrook, OH

Great service and price

Install manager and installers were very knowledgeable and explained every aspect of the install and operation of our HVAC system.

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.

Cory W.

Cory W.

Duct cleaning

Near Cleveland Ave, Dayton, OH 45420
Cory W.

Cory W.

Duct cleaning

Near Wehrly Ave, Dayton, OH 45419
Cory W.

Cory W.

Furnace only

Near Northern Dr, Dayton, OH 45432
steven w.

steven w.

Full system install.

Near Seton Hill Dr, Bellbrook, OH 45305
Cory W.

Cory W.

Duct cleaning

Near Downing Pl, Englewood, OH 45322

Call us today for Heating and Air Conditioning Services for Dayton, Ohio