Geothermal.contractors

Synergy Midwest provides residential and commercial heating, cooling, geothermal, and solar services to the Fox Valley from its Appleton, Wisconsin base. Founded in 2005, the company positions itself as a geothermal specialist — installing ground-source heat pump systems that exchange energy with the earth's stored thermal mass to deliver heating and cooling from a single system. It also offers blower door testing and home energy assessments alongside conventional HVAC work, making it a full-spectrum energy-efficiency contractor for the region. The service area spans Black Creek, Combined Locks, Freedom, Greenville, Hortonville, Kaukauna, Kimberly, Menasha, Neenah, New London, Oshkosh, Seymour, and Sherwood, as well as Butte des Morts and Larsen, in the greater Appleton and Winnebago County area. Verified active operator per https://synergymidwest.godaddysites.com + contact page (WI bundle audit 2026-06-02)