Heating and Air Conditioning Services Company for Dayton, Ohio

Extreme’s One Hour Heating & Air Conditioning is a leading provider of HVAC services in the Dayton, Ohio area. We provide comprehensive heating, cooling and ventilation services to the Dayton and surrounding areas.  Read our reviews and see why our clients consistently praise our timely and professional work.

We serve commercial and residential properties, and carry the best quality equipment and systems from leading brands like Trane, Carrier, Amana, and Honeywell. From heat pumps to duct cleaning, we carry extensive options for your commercial or residential needs.

Whether you’re looking for Kettering furnace repair, a central air conditioner for your Springboro home, or gas furnace installation for your Beavercreek business, we’re here to help.  We provide the best Heating and Air Conditioning services for Dayton, Ohio. Browse our products and services to find our full selection of offerings.

Have a question? Let us know the details of your heating and cooling issue, and we’ll get back to you with our expert recommendations.

Need a New Heating System Installed?

You Came to the Right Place!


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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Why Choose Extreme Heating and Air Conditioning

  • Over 10 Years Servicing the Dayton, Ohio Area
  • Free in-Home, no-obligation estimates
  • Emergency Service — 24 hours a day, 7 days a week, 365 days a year.
  • Award winning Comfort Club saves you money year after year.
  • Always on time…. or you don’t pay a dime!

What our Happy customers say:

Wow, Extreme’s One Hour Heating and Air are true experts in their field. My family and I had suffered from uneven, uncomfortable temperature throughout our entire home for years. Not only did One Hour fix this issue completely while installing my new system, I saved a small fortune. With the tax match program, rebates and discounts from One Hour I saved over $3,500.00!
Jim Kroger - Centerville
My property has 2 furnaces installed by Extreme. Both are heat pump with natural gas backup. Both furnaces (one 4 years old, one just installed) were done promptly and are what we expected. I would gladly endorse and recommend Extreme.
R. Papajcik

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