Grafton Looks to Us for Geothermal Heating & Cooling! We're Professional Geothermal Systems. And we're recognized throughout Grafton, Wisconsin, for our geothermal heating and cooling expertise. People look to us for ... first-class geothermal system installation and service experienced, highly trained personnel who know every aspect of geothermal heating and cooling - and know how to help you understand geothermal systems from one of the industry's most reliable names - WaterFurnace recommendation on how to maximize the potential from their geothermal heating and cooling installation Obviously, a major reason people turn to us in the first place is for the savings they can get on their energy bills with a geothermal system. Want a look? Give our Geothermal Savings Calculator a go. Then take the next step and contact Professional Geothermal Systems. We'll show you more of what makes geothermal systems the best choice for year-round heating and cooling comfort in Grafton.