Pat's Heating serves as a heating and cooling contractor for residential and commercial HVAC customers in Southeast Wisconsin's Lake Country, including Oconomowoc, Chenequa, Delafield, Dousman, Pewaukee, Hartland, Ixonia, Merton, Wales and the Kettle Moraine area. We sell & service hi-efficiency forced air furnaces and central air conditioning, boilers, radiant and geothermal heating, high efficiency air cleaning systems and other indoor air quality systems to enhance your family's health & comfort.