McMinnville Geothermal Heating & Cooling Contractor In McMinnville, Oregon, the geothermal heating and cooling contractor to call is Mill Creek Heating. Our geothermal knowledge is second to none. And we offer the best products available in McMinnville - or anywhere else, for that matter: geothermal heating and cooling systems! Try our Geothermal Savings Calculator. It'll tell you the best reason for going geothermal. The monthly savings are huge! We can explain to you plenty of other good reasons, too. And when you’re ready install? We'll see to it that your geothermal heating and cooling system is installed - and serviced – correctly! Contact Mill Creek Heating today.