We'll Help You Save with Geothermal in Pierce County! Want to find out just how big a geothermal heating and cooling system could save you on your energy bills in Pierce County? Our handy Geothermal Savings Calculator will show you. Just enter in your information and prepare to be satisfied. Of course, to reap the full benefits of a geothermal system, you need the right system - and the right contractor to install and service it. You need a WaterFurnace system from Thermal Systems, the best geothermal heating & cooling contractor in Pierce County, Washington. Contact Thermal Systems today and let us highlight more of the benefits you'll enjoy with a WaterFurnace geothermal heating and cooling system. We'll also show you why our installation and service have won a lot of geothermal followers in Pierce County.