We're Manassas's Primary Geothermal Contractor! Manassas, Virginia, residents have all sorts of reasons for desiring a geothermal heating and cooling system: exceptional comfort all year – no matter how extreme the weather variations stable operating performance energy performance (They would look forever to find a more "green," more natural way to heat and cool their homes!) significant – sometimes amazing – savings on their energy bills superior installation and maintenance from Renewable Energy Solutions, Manassas's geothermal experts. Find out 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 Renewable Energy Solutions. We sell, install, and service WaterFurnace geothermal systems, the finest in the industry today.