Freehold Looks to Us for Its Geothermal Needs We’re CMS Geothermal, the recognized "go-to" team for Freehold, New Jersey's geothermal heating and cooling. Freehold residents look to us for ... quality WaterFurnace geothermal heating and cooling systems expert installation and service from highly skilled, highly trained professionals professional advice on how to maximize the potential of their geothermal installations With the economy like it is, there's never been a better time to put a WaterFurnace geothermal system to work for you. And we're the ones to do it in Freehold, New Jersey. Contact CMS Geothermal today. Want to see just how much "going geothermal" could save you on your energy bills? Spend a moment or two with our simple Geothermal Savings Calculator.