About Us

 Greg's Service Inc. is located in Wood River, IL. We service all of Madison, Bond, Clinton, and St. Clair Counties in Illinois. As well as all of St. Louis County, St. Louis City, St. Charles County, and Jefferson County in Missouri. We install, service, and repair Furnaces, Air Conditioners, Boilers, Heat Pumps, Air Handlers, and hot water heaters. 

Greg started in the HVAC field at 15 years old in 1971, learning from his father Gene who owned Economy Heating & Cooling. Greg later went on to open his own company, Greg's Service Inc. Heating & Cooling, in 1990. His son Shawn, was hired in 2007, and is currently directing operations.

 We have proudly offered our services to our military members at Scott Air Force Base in Illinois, servicing and installing all residential gas furnaces, boilers, air handlers, and air conditioning equipment for over 20 years.