D & D Heating & Air Conditioning

Heating and air conditioning repair in Hartford, Connecticut. We are licensed HVAC contractors and geothermal heating and cooling specialists with over 30 years of experience. We serve all of Connecticut for heating and AC repair, sales, and installation. Factory trained and certified for American Standard, Unico HVAC Systems, Bosch, WaterFurnace Oil, Gas, Solid Fuel heating systems and geothermal heat pumps. We are geothermal certified in both Connecticut and Massachusetts. We specialize in retrofits of older homes and historical properties with high velocity small ducts and we also provide ductless heating and air conditioning systems, and hot water heating systems and storage.