Frederick Looks to Us for Its Geothermal Needs We’re Bragg Mechanical and Geothermal Services, the distinguished "go-to" team for Frederick, Maryland's geothermal heating and cooling. Frederick homeowners look to us for ... quality WaterFurnace geothermal heating and cooling systems the best installation and service from highly skilled, highly trained professionals sound advice on how to maximize the potential of their geothermal installations With the economy like it is, there's never been a opportune time to put a WaterFurnace geothermal system to use for you. And we're the professionals to do it in Frederick, Maryland. Contact Bragg Mechanical and Geothermal Services today. Want to taste and see just how big "going geothermal" could save you on your energy bills? Take a moment or two with our simple Geothermal Savings Calculator.