Glen Mills, Pennsylvania, Geothermal J. Zanes LLC is the top WaterFurnace geothermal contractor in Glen Mills, Pennsylvania. We'll help you comprehend all the advantages of geothermal heating and cooling. We’ll make sure your WaterFurnace system is properly installed, too. And when it comes time for service? Nobody in Glen Mills does it better! Contact J. Zanes LLC today. Like a little sneak-peek at the savings a WaterFurnace geothermal heating and cooling system can provide? Use our easy Geothermal Savings Calculator.