Lancaster Geothermal Heating & Cooling Contractor In Lancaster, Ohio, the geothermal heating and cooling contractor to call is Fairfield Heating & Cooling. Our geothermal knowledge is second to none. And we provide the best products on the market in Lancaster - or anywhere else, for that matter: WaterFurnace geothermal heating and cooling systems! Take a look at our Geothermal Savings Calculator. It'll tell you the best reason for going geothermal. The monthly savings are huge! We can tell you plenty of other good reasons, too. And when you’re ready install? We'll see to it that your WaterFurnace geothermal heating and cooling system is installed - and serviced – correctly! Contact Fairfield Heating & Cooling today.