About E & D Company Your Superior Geothermal Source in Pittsburgh If you are looking for a company that has a total in-house operation and a proven track record for assisting homeowners with all of their WaterFurnace Pittsburgh geothermal heating and cooling needs, you can trust E & D Company. Our total in-house operation includes... planning assistance. complete comfort system installation. routine service and maintenance. emergency repair. energy-saving advice and consultation. Providing total customer satisfaction is our highest priority in the Pittsburgh area, and our fully trained professional staff will see to that.It's hard not to be satisfied when you select the best heating and cooling system on the market today. We will see to it that your new system meets all of your expectations, helping you to reduce your energy costs and enhance your home's conditioning efficiency. Contact E & D Company today to get a free estimate and a cost savings analysis for your home.