AC & Furnace Repair Services in Dayton, Ohio

Do you need your furnace or air conditioner 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

Furnace Replacement In Dayton Ohio


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

Heat Pump Replacement In Dayton, Ohio

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 Condiitioner Replacement In Dayton, Ohio

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

Extreme's One Hour Heating & Air Conditioning Rated 5.0 out of 5 stars based on 175 customer reviews

Map of Dayton, OH

Outstanding service

Review of Extreme's One Hour Heating & Air Conditioning

Kevin, was on time, polite, professional, and efficient. He performed extra care and extra work to ensure the heat pump will operate efficiently in the future. He pointed several things that he fixed or improved to make it so.

Map of Englewood, OH

Great service team

Review of Extreme's One Hour Heating & Air Conditioning

They were professional in their job and did an outstanding job.

Map of New Carlisle, OH

Great crew

Review of Extreme's One Hour Heating & Air Conditioning

Crew very nice great job very happy

Map of Dayton, OH

Very pleasant experience

Review of Extreme's One Hour Heating & Air Conditioning

The men were here for 4 hours working constantly. Very efficient and careful of the walls and furniture. I was worried that things were going to get scratched and marred but they were very careful. The results of the cleaning were unbelievable. I would definitely recommend this service.

Map of Beavercreek, OH


Review of Extreme's One Hour Heating & Air Conditioning

Complete package: outstanding service, professionalism, and integrity. Highly satisfied and would recommend our servicemen anytime.

Kevin V.

Kevin V.

AC spring checkup.

Near Southfield Dr, Dayton, OH 45434
Kevin V.

Kevin V.

AC spring checkup

Near Tampico Trail, Bellbrook, OH 45305
Cory W.

Cory W.

Duct cleaning

Near Terrahill Ct, Englewood, OH 45322
Kevin V.

Kevin V.

Filter changing

Near E Franklin St, Bellbrook, OH 45305
Kevin V.

Kevin V.

Changing filters

Near Clyo Rd, Sugarcreek Township, OH 45305

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