We're Awendaw's Primary Geothermal Contractor! Awendaw, South Carolina, homeowners have all kinds of reasons for desiring a geothermal heating and cooling system: remarkable year-round comfort – no matter how crazy the weather variations stable operating efficiency energy efficiency (They’d be hard-pressed to find a more "green," more natural way to heat and cool their homes!) significant – often outstanding – savings on their energy bills premium installation and service from Custom Climate Heating & Air, Awendaw's geothermal experts. Find out more about what a geothermal heating and cooling system can do to improve your family's comfort. Check out our Geothermal Savings Calculator. Then contact Custom Climate Heating & Air. We sell, install, and maintain WaterFurnace geothermal systems, the finest in the industry today.