Geothermal.contractors

Alum Creek Heating & Cooling, LLC has served Marengo, Ohio and surrounding Morrow County communities since January 2002, holding Ohio License #28305. The company specializes in geothermal heating and cooling using closed-loop ground systems in both horizontal and vertical configurations, allowing water-based fluid to circulate underground and transfer heat without combustion, on-site emissions, or fossil fuels. Service area extends approximately 30 miles from Marengo. In addition to geothermal, Alum Creek installs ductless mini-split systems, natural gas and propane heating, and boilers. All installations carry a one-year labor warranty; service calls carry a 30-day warranty. Emergency service is available evenings and weekends. ACCA member with BBB A+ rating. Contact at (419) 253-9445. Verified active operator per https://alumcreekheating.com/geothermal/4043976 + WaterFurnace locator (Ohio audit 2026-05-30)