Grand Oaks Heating and Cooling is a HVAC contractor serving the Wentzville, MO area since 1990. Services include AC Service, AC Repair, Central Air, Heating Systems, Ventilation Service, Air Conditioning, Thermostat Repair, Hot Water Heating, Gas Furnace, Geothermal Heat Pump, HVAC, Emergency HVAC Service, Residential HVAC and Commercial HVAC. Serving towns of Saint Charles, Saint Peters, Chesterfield, Wildwood, Wentzville, Washington, Troy, Union, Grover, Lake Saint Louis, Dardenne Prairie, Warrenton, Pacific, Villa Ridge, Weldon Spring, Glencoe, Cottleville, Defiance, Wright City and Moscow Mills.