We're Carthage's Primary Geothermal Contractor! Carthage, Mississippi, homeowners have all kinds of reasons for desiring a geothermal heating and cooling system: phenomenal year-round comfort – no matter how crazy the seasonal variations stable operating performance energy efficiency (They would look forever to find a more "green," more natural way to heat and cool their homes!) significant – often extraordinary – savings on their energy bills superior installation and maintenance from BC's Heating and Air, Carthage's geothermal experts. Discover 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 BC's Heating and Air. We sell, install, and service heating & cooling geothermal systems, the finest available today.