Contact Extreme Heating, Air, Plumbing
We book heating, cooling and plumbing service across the Dayton and Cincinnati metros, out of four Ohio offices that all route to one line. The office is open weekdays 8 to 5, and emergencies are answered 24/7.
Get in touch with the Extreme Team.

How do I book a service visit?
Two ways: call (844) 584-7399, or use the online scheduler. Both land in the same dispatch, and a real person picks up the phone after hours and on weekends. X-Plan members get priority scheduling.
When are you open?
The office is staffed Monday – Friday, 8:00 AM – 5:00 PM. The emergency line runs separately, around the clock, every day of the year including holidays, so the office being shut does not mean nobody picks up.
Where are your offices?
We work out of four Ohio shops. Beavercreek covers the Dayton side, Mason covers Cincinnati, and Troy and Waynesville fill in Miami and Warren counties between them.
One number reaches all four: (844) 584-7399, and it is the line answered at any hour. Each shop also takes calls direct on its own local number, listed on its card below.

Beavercreek, OH 45434

Mason, OH 45040
Troy, OH 45373
Waynesville, OH 45068
Which office is closest to me?
All four Ohio offices route to the same number, (844) 584-7399.
Our four Ohio office addresses
| Office | Street address | County | Office hours |
|---|---|---|---|
| Beavercreek | 712 N Fairfield Rd, Beavercreek, OH 45434 | Greene County | Monday – Friday, 8:00 AM – 5:00 PM |
| Mason | 5633 Tylersville Rd, Mason, OH 45040 | Warren County | Monday – Friday, 8:00 AM – 5:00 PM |
| Troy | 2950 Stone Cir Dr, Troy, OH 45373 | Miami County | Monday – Friday, 8:00 AM – 5:00 PM |
| Waynesville | 141 North St, Waynesville, OH 45068 | Warren County | Monday – Friday, 8:00 AM – 5:00 PM |
What should I do while I wait for a technician?
Shut the system off at the thermostat if it's short-cycling, tripping a breaker, or smells like something is burning. For a water leak, close the valve at the fixture, or the main shutoff if that valve won't hold.
If you smell gas, get everyone out of the house first and call the gas utility from outside before you call anyone else.
Is emergency service available at night and on weekends?
Yes, every day of the year. No heat, no cooling, no hot water, a burst pipe or the smell of gas all get a truck moving, and 90% of calls are handled the same day.
Planning a replacement instead of reacting to a breakdown? Financing runs through three lenders, and Dayton and Cincinnati each have their own service page.
What else do people ask before calling?
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