We're the Geothermal Experts in Charleston! At Custom Climate Heating & Air, we are experts in WaterFurnace geothermal heating and cooling systems. Charleston residents know we offer... the finest geothermal systems on the market today finest geothermal installation and maintenance the kind of support that helps them realize the full comfort and energy-savings expected from a geothermal system (Our Geothermal Savings Calculator will suggest potential monetary savings. We believe you like what you see!) In Charleston, South Carolina, we're by far the best the geothermal heating and cooling contractor to call. Contact Custom Climate Heating & Air today.