We're Edwardsburg's Primary Geothermal Contractor! Edwardsburg, Michigan, homeowners have all sorts of reasons for desiring a geothermal heating and cooling system: exceptional year-round comfort – no matter how extreme the seasonal variations stable operating performance energy efficiency (They’d be hard-pressed to find a more "green," more natural way to heat and cool their homes!) significant – sometimes extraordinary – savings on their energy bills superior installation and service from Crystal Valley Comfort, Edwardsburg's geothermal experts. Learn more about what a geothermal heating and cooling system can do to improve your family's comfort. Look at our Geothermal Savings Calculator. Then contact Crystal Valley Comfort. We sell, install, and service WaterFurnace geothermal systems, the finest on the market today.