Carew Heating & A/C, Inc., is a Wisconsin Heating, Cooling, Air Conditioning, Geothermal Groundwater, Ductless Mini Split, Heat Pump, and Furnace repair, service, replacement and maintenance company located in Watertown and surrounding communities. Carew Heating & A/C, Inc. will send you only the best technician to fix your problem, air conditioner repair and, gas or propane (LP) furnace and heater repair as well as your air conditioner installation, and furnace installation.