We're Springfield's Primary Geothermal Contractor! Springfield, Kentucky, homeowners have all sorts of reasons for wanting a geothermal heating and cooling system: exceptional comfort all year – no matter how extreme the weather variations smooth operating performance energy efficiency (They would look forever 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 maintenance from Dever Enterprises, Springfield's geothermal experts. Learn more about what a geothermal heating and cooling system can do to increase your family's comfort. Look at our Geothermal Savings Calculator. Then contact Dever Enterprises. We sell, install, and service WaterFurnace geothermal systems, the very best in the industry today.