We're Oak Grove's Primary Geothermal Contractor! Oak Grove, Missouri, residents have all kinds of reasons for wanting a geothermal heating and cooling system: remarkable comfort all year – no matter how extreme the weather variations stable operating performance energy performance (They’d be hard-pressed to find a more "green," more natural way to heat and cool their homes!) significant – sometimes amazing – savings on their energy bills premium installation and maintenance from ECS Geothermal, Inc, Oak Grove's geothermal experts. Discover more about what a geothermal heating and cooling system can do to benefit your family's comfort. Check out our Geothermal Savings Calculator. Then contact ECS Geothermal, Inc. We sell, install, and service WaterFurnace geothermal systems, the finest in the industry today.