Air leaks around windows and doors are major sources of heat loss. Sealing them is a cost-effective way to save energy.

Inspect: On a cold or windy day, feel for drafts around window frames, door frames, electrical outlets, and where pipes/wires enter the house.
Weatherstripping: Apply self-adhesive foam or rubber weatherstripping tape around door frames and window sashes where moving parts meet, creating a seal when closed.
Caulking: Apply exterior-grade caulk to fill small cracks and gaps around stationary window and door frames where they meet the siding.
Door Sweeps/Draft Stoppers: Install a door sweep at the bottom of exterior doors or place draft stoppers (fabric tubes filled with insulation, or rolled towels) against the bottom inside edge to block under-door drafts.
Outlet Gaskets: Install foam gaskets behind outlet covers and switch plates on exterior walls to block drafts through electrical boxes.

N/A - Focuses on identifying and sealing common air leak points with inexpensive materials.

Seal Drafts Around Windows and Doors