William's Heating - Cooling, Inc.

William's Heating - Cooling, Inc. has kept Mid-Michigan comfortable for 110 years, founding in 1914 and maintaining continuous operation through four generations of family ownership. Based in Elsie, the contractor serves St. Johns, Dewitt, Clinton County, and surrounding communities with a 4.6-star rating drawn from 57 reviews. Operating Monday through Friday from 8 AM to 4:30 PM, the company handles residential and light commercial heating and cooling systems, offering same-day emergency service when weather turns dangerous.

What distinguishes Williams is their depth of expertise in equipment other contractors have walked away from. The company services fuel oil furnaces, a rarity in modern HVAC companies, and handles boiler systems using water and radiator heat distribution. Their certified technicians work on ductless mini-splits for homes without existing ductwork and provide in-house sheet metal fabrication for custom duct solutions. The company also maintains an active fireplace and chimney service division, addressing a need many HVAC companies simply refer out.

Customer reviews name specific technicians who made the difference during stressful breakdowns. Alex B. provided competitive pricing options for a new gas furnace and water heater installation. When Jared Wilson's furnace failed at 6:30 AM, two technicians arrived within hours, explained the repair costs transparently, and completed installation in under 40 minutes. The office staff, particularly Rhonda, arranged a payment plan for a disabled veteran customer without hesitation. A recent reviewer noted the company honored their 10-year parts and labor warranty by replacing an entire furnace when the heat exchanger failed, doing so the day after the initial service call.