How To Weatherstrip An Exterior Door

Where to Start

Block drafts as the weather cools by making sure that weatherstripping around doors and windows is intact. Tour the house looking for worn, damaged, or missing strips, or areas where light is infiltrating along door jambs and under window sashes. On windy days, feel for drafts. If any weatherstrip-ping needs to be replaced, vinyl-clad foam is a good choice to seal door edges; pile weatherstripping with fins works well on windows with sliding sashes.