We're Glen Cove's Primary Geothermal Contractor! Glen Cove, New York, residents have all sorts of reasons for wanting a geothermal heating and cooling system: remarkable comfort all year – no matter how crazy the seasonal variations smooth operating efficiency 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 ZBF Geothermal, Glen Cove's geothermal experts. Discover more about what a geothermal heating and cooling system can do to increase your family's comfort. Check out our Geothermal Savings Calculator. Then contact ZBF Geothermal. We sell, install, and service WaterFurnace geothermal systems, the very best on the market today.