We're the Geothermal Source in Eastport! Eastport homeowners in the know look to Kalkaska Pumbing & Heating Inc. for all their geothermal heating and cooling needs. They trust us to give not only the correct installation and service but also the knowledge to help them maximize the potential from their geothermal systems. Considering a geothermal system of your own? Give our nifty little Geothermal Savings Calculator a whirl. Just load it with your data and stand in awe of the results. Then, contact us, the Eastport, Michigan, geothermal experts at Kalkaska Pumbing & Heating Inc..