What you need to do before you start

Weather stripping is the rubber or foam seal that runs around your door frame and stops air, water, and drafts from leaking through the gaps. Replacing it is a straightforward job that takes 30 to 60 minutes and costs between $15 and $40 in materials. You do not need special tools — a utility knife, a screwdriver, and a measuring tape are enough.

Before you buy new stripping, measure the perimeter of your door opening. Measure the top, both sides, and the bottom separately because doors are rarely perfectly square. Write down each measurement. Then look at your existing stripping to see what type it is: adhesive-backed foam, rubber with a nail-in flange, or rubber with a groove that slides over the door frame edge. Buy the same type as what you are replacing, or choose adhesive-backed foam if you are unsure — it works on most doors and is the easiest to install.

Key Takeaways

  • Measure the top, both sides, and bottom of your door frame separately before buying new stripping, because doors are rarely square.
  • Remove old stripping by peeling it off if it is adhesive-backed, or unscrewing the flange if it is nailed on.
  • Clean the frame with rubbing alcohol and let it dry completely before explore new adhesive-backed stripping, or the seal will not stick.
  • Press new stripping firmly into place, starting at the top and working down each side, then across the bottom.
  • Do not use the door for 24 hours after installation if you used adhesive-backed stripping, so the adhesive can set.

Remove the old stripping

If your current stripping is adhesive-backed foam or rubber, peel it away from the frame by hand. Start at a corner and pull slowly at a shallow angle — this keeps the backing from tearing and leaving residue behind. If it resists, use a plastic scraper or old credit card to lift the edge first, then peel. Do not use a metal scraper, which can gouge the wood or metal frame.

If your stripping is held on with nails or screws, use a screwdriver or drill to remove the fasteners. Keep them in a small container if you plan to reuse them. Once the stripping is off, scrape away any old adhesive or caulk left on the frame. A plastic scraper works best here too. The frame needs to be smooth and clean, or new adhesive-backed stripping will not stick properly.

Clean the door frame thoroughly

Wipe the entire frame with a cloth dampened in rubbing alcohol. This removes dust, dirt, and any oily residue that prevents adhesive from bonding. Pay special attention to the corners and the bottom of the frame, where dirt collects. Let the frame dry completely — at least 10 minutes in warm, dry conditions. If you rush this step, the new stripping will peel away within weeks.

If the frame is painted and the paint is peeling or flaking, scrape it smooth first. Adhesive will not hold to loose paint. If the frame is wood and splintered, sand the rough spots lightly with fine-grit sandpaper (120 to 150 grit). You do not need a perfect finish, just a surface that is clean and dry.

Measure and cut the new stripping

Lay out your new stripping and cut it to length using a utility knife. Cut the top piece first, using your measurement of the top of the frame. For the sides, cut two pieces to the length you measured. For the bottom, cut a piece to that measurement. A sharp utility knife cuts cleanly through foam and rubber — a dull blade will tear the material and make a ragged edge.

If you are using rubber stripping with a groove that slides over the frame edge, you may need to cut the corners at 45-degree angles so the pieces fit together neatly. Check the instructions that came with the stripping, or test-fit a corner before cutting all four pieces. If you are using adhesive-backed foam, you can butt the corners straight together — they do not need to be angled.

Install adhesive-backed stripping

Peel back a few inches of the backing paper from one end of the top piece. Press the exposed stripping firmly onto the frame, starting at one corner. Peel back more backing paper as you go, pressing the stripping down with your thumb or a roller. Work slowly and keep the stripping straight — once it sticks, it is hard to reposition without wrinkling.

When you reach the other end of the top piece, press the last few inches down firmly. Then do the same for each side piece, starting at the top and working down. Press the stripping into the corner where the top and side pieces meet so they seal against each other. Finally, install the bottom piece the same way, pressing it firmly into the corners where it meets the sides.

After all four pieces are in place, go back and press the entire perimeter down again with firm, steady pressure. This ensures good contact between the adhesive and the frame. Do not use the door for 24 hours — the adhesive needs time to set fully.

Install nailed or grooved stripping

If your stripping has a flange with nail holes, start at the top. Position the stripping so the groove or lip sits over the frame edge, and the flange lies flat against the frame. Drive nails through the flange holes, spacing them about 4 to 6 inches apart. Use galvanized or stainless steel nails so they do not rust. Do not hammer too hard — you only need the nail head to sit flush with the flange, not to dent it.

Work your way down one side, then the other, then across the bottom. Keep the stripping straight as you nail. If a piece twists or shifts, back out the nail and reposition before driving it in again. Once all four pieces are nailed, test the door — it should close smoothly without binding on the stripping.

Test the seal and adjust if needed

Close the door and look for gaps between the stripping and the frame. You should not see daylight anywhere. If there is a gap, the stripping may not be pressed down firmly enough, or the frame may be warped. For adhesive-backed stripping, press down harder in that area. For nailed stripping, you may need to remove a nail, reposition the stripping, and reinstall it.

Feel around the edges of the closed door with your hand. You should feel a slight resistance when you push on the door — this means the stripping is making contact. If the door is very hard to close or rubs against the stripping, the stripping may be too thick for your door. This is rare, but if it happens, you may need to remove it and choose a thinner type.

Frequently Asked Questions

Can I install new stripping over old stripping?

No. Old stripping prevents new adhesive from bonding to the frame, and layering stripping makes the door hard to close. Always remove the old stripping completely and clean the frame before installing new stripping.

What type of stripping works best for a metal door frame?

Adhesive-backed foam works well on metal frames as long as the frame is clean and dry. Rubber stripping with a nailed flange also works, but you need to drill pilot holes first so the nails do not bend or split the metal.

How long does weather stripping last?

Adhesive-backed foam typically lasts 3 to 5 years before it hardens and loses its seal. Nailed rubber stripping lasts longer — often 7 to 10 years — but it depends on weather exposure and how much the door is used.

What should I do if the door is hard to close after I install new stripping?

The stripping may be too thick, or it may not be seated properly in the frame. Try pressing it down more firmly, or remove it and reinstall it, making sure the edge sits flush with the frame. If the door still binds, the stripping may be the wrong type for your door.

Can I use weather stripping on a sliding glass door?

Yes. Adhesive-backed foam works on the frame around a sliding glass door. For the sliding track itself, use a specialized track seal designed for sliding doors, which is thinner and does not interfere with the sliding mechanism.