Milwaukee FASTBACK Compact Folding Utility Knife (48-22-1500)
One-handed open; snap in a fresh blade for clean trim cuts.
Affiliate link placeholder · Home Depot prices as of 2026-10-14 · Amazon prices shown at checkoutJob guides / Entry / Weatherization / Weatherstrip a Door
The Job Guide
Seal a drafty door, in an hour.
The short answerTo weatherstrip a door, find the leaks by feeling for drafts or closing the door on a slip of paper. Pull out worn kerf-style strips and press new ones into the groove in the jamb, or apply self-stick foam on a clean, dry stop if there's no groove. Then add or replace the door sweep at the bottom so it just touches the threshold. The door should close with light pressure and no light showing.
Gaps around an exterior door leak heat, noise and bugs. New weatherstripping and a sweep are cheap and take about an hour.
DifficultyEasy
Time1 hrper door
DIY cost$7–$26estimate
Hiring a proVaries by areaestimate
DIY range is the Home Depot price of the parts below as of Oct 14, 2026 (kerf kit and sweep; foam tape from Amazon not priced). We didn't find a reliable published pro rate, so none is shown.
