Hanover, VA, Geothermal DeltaTemp is the best WaterFurnace geothermal contractor in Hanover, VA. We'll help you understand all the advantages of geothermal heating and cooling. We’ll see to it that your WaterFurnace system is properly installed, too. And when it comes time for service? Nobody in Hanover can beat our service! Contact DeltaTemp today. Like a little sneak-peek at the savings a WaterFurnace geothermal heating and cooling system can give you? Use our easy Geothermal Savings Calculator.