Plumbing & Wiring


Your home’s plumbing and electrical wires often have gaps around them, allowing warm and cool air to escape. Proper insulation and sealing can lower your heating and cooling bill and—in the case of plumbing—reduce water heating costs.

Types of Plumbing & Wiring

Air Gaps

Help improve your home’s energy efficiency by sealing around wiring and plumbing penetrations. Use caulk for small holes and expanding foam for larger areas. This will keep unconditioned air from entering the house or conditioned air from escaping.

Hot Water Pipe Insulation

Insulating your hot water pipes helps reduce heat loss and, because it raises water temperature by 2-4 degrees, enables you to lower your water heater’s temperature setting, another source of savings. It also hastens hot water delivery to showerheads and faucets, reducing waiting time and lowering water consumption.

There are several types of pipe insulation available, including pipe sleeves, fiberglass wrap and foil tape. While you are insulating the hot water pipes, also insulate the first few feet of the cold water pipe at the top of your water heater tank. Just like a metal spoon in a cup of hot coffee radiates heat, so does the cold water pipe. Insulation will reduce this heat loss.