Trust William's Heating & Cooling
with your home's
furnace or AC Repair

Serving DeWitt and the surrounding areas Since 1916

Stay warm in the frigid
Winter and make sure your
furnace runs efficiently

When it Comes to Heating & Cooling Repair in the Clinton, Ingham, Eaton, Shiawasse ,Gratiot Counties, We Are Tried and True

There are a lot of companies that do what we do—repair, maintain, and install HVAC equipment. But there are few with as many longstanding, loyal customers! We’re glad to be the heating company so many residents in St. Johns, Dewitt and Owosso know trust.

Our philosophy is simple: we treat our customers the way we'd like to be treated. Before starting work, we educate you as to your options and potential costs of your furnace repair or boiler replacement. We show our respect by showing up on time, being prepared, doing quality work, and treating your home as if we were working in our own. When we’re done, you pay what was agreed upon up front and can count on us stand behind our work. When you couple that with our dedication to our customers, why would anyone in the St. Johns area go anywhere else?
Trust our techs to service your Water Heater in Owosso MI

Williams Heating-Cooling, Inc. offers the following HVAC services to people in DeWitt, Elsie, and the surrounding areas:

  • furnace repair
  • compressor repair
  • smart thermostats
  • thermostat service
  • filter replacement
  • air conditioner repair
  • residential zoning systems
  • ductless mini-split systems
  • furnace service & cleaning
  • boiler repair and installation
  • high efficiency ac installation
  • water heater repair and replacement
  • air conditioner service and cleaning
  • high efficiency furnace installation
Check out our AC repair service in Dewitt MI
Amana Furnace service in Owosso MI is our speciality.
In-Floor Heat

Never step on to cold floors again! Stay warm when you install in-floor heating in your home!

In-Floor Heat
Call Williams Heating-Cooling, Inc. for an in-floor heating installation today!
For your next fireplace repair in Owosso MI, call Williams Heating-Cooling, Inc.

Whether you want to install a fireplace or we can help repair your existing one!


Trust us to install a Class A Chimney in your home for a more efficient heating outlet!

Need a chimney installation in Dewitt MI? Call Williams Heating-Cooling, Inc. today to schedule one!
Improve your indoor air quality in Dewitt MI by having a clean Boiler.
Air Quality

Learn about options to prevent mold and toxins from entering the space you live!

Air Quality
Water Heaters

Don't get caught in a bind with cold water! Install a new hot water heater right away!

Water Heaters
Get your Water Heater replacement done by Williams Heating-Cooling, Inc. in St. Johns MI

Cities We Service

Click on a city below to see what your friends and neighbors are saying about their recent experience with us
From St. Johns MI to Dewitt MI, Williams Heating-Cooling, Inc. is there for your next Furnace repair.
Williams Heating-Cooling, Inc., is a Michigan heating, cooling, air conditioning, ductless mini-split, and furnace repair, replacement, service, and maintenance company located in Elsie. Williams Heating-Cooling, Inc. employs only the best HVAC technicians for your Air Conditioning, Furnace, Boiler, Ductless Mini Splits, Heat Pump, Fireplace, Water Heater, Air Quality, Radiant Tube & In Floor Heaters, Chimneys, Custom Sheet Metal, Garage & Space Heaters repairs and replacements. We proudly service the following Clinton, Ingham, Eaton, Shiawasse ,Gratiot Counties communities: Ashley, Bancroft, Bannister, Bath, Brant, Chesaning, Corunna, Dewitt, Durand, East Lansing, Elsie, Eureka, Fowler, Haslett, Ithaca, Laingsburg, Lansing, Lennon, Maple Rapids, Oakley, Okemos, Ovid, Owosso, Perrinton, Perry, Saint Charles, Saint Johns, and Williamston. So when you ask to find "A good heating company near me", you've come to the right place. To get a quote on your next Furnace repair or replacement, call (989) 862-5400. Williams Heating-Cooling, Inc. services all brands of HVAC equipment including Carrier, Bryant, Payne, Trane, Lennox, Rheem, Ruud, Amana, York, Daikin, Mitsubishi, Fujitsu, Heil, Crown, Frigidaire, Gibson, Goodman, Lochinvar, Weil McLain, A O Smith, Kohler, American Standard, General, Aprilaire, Honeywell, and White Rodgers.
24 Hour Emergency Service Available(989) 862-5400
Williams Heating-Cooling, Inc.   |  
  541 N. Ovid St.  •  Elsie, MI 48831
  (989) 862-5400   |     Monday - Friday:  8:00am - 4:30pm
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