We're the Geothermal Source in Springfield! Springfield people in the know look to CMS Geothermal for all their geothermal heating and cooling needs. They count on us to provide not only the correct installation and service but also the experience to help them get the most from their geothermal systems. Thinking about a geothermal system of your own? Give our nifty little Geothermal Savings Calculator a whirl. Just load it with your data and marvel at the results. Then, contact us, the Springfield, New Jersey, geothermal professionals at CMS Geothermal.