We're Seymore's Primary Geothermal Contractor! Seymore, Connecticut, residents have all sorts of reasons for desiring a geothermal heating and cooling system: exceptional comfort all year – no matter how extreme the seasonal variations stable operating efficiency energy performance (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 Nero Air Conditioning and Heating, Seymore's geothermal experts. Find out 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 Nero Air Conditioning and Heating. We sell, install, and maintain WaterFurnace geothermal systems, the very best available today.