How to Replace the Rubber Seal for a Window

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Window seals prevent cold air from entering the home.
Window seals prevent cold air from entering the home. (Image: window; image by lisichka from Fotolia.com)

Bad rubber, window seals allow air to enter your home or vehicle. You can order new seals to replace the old ones, but it is much cheaper to replace the seals yourself. Rubber seals can be found at most hardware stores and window repair shops.

Things You'll Need

  • Pliers
  • Razor blade
  • Rubber seal
  • Super glue

House Windows

Use needle nose pliers to strip the old seal from the window. Use a razor blade to scrape the old glue and remnants of attached rubber from the window.

Apply a thin layer of super glue or loctite to the contact points around the window. Do not apply the glue to the glass surface.

Use a rubber seal with a wide face and an insert tab to replace the old seal. Wedge the insert tab between the window frame and the window. Tap the seal with your palm to force it in place.

Stop the seal when you reach the starting point and use the razor blade to cut the seal. Apply a small bead of glue to the starting point and push the two ends together. Allow the glue to dry completely before you test the window.

Car Windows

Open the car window. Use needle nose pliers to remove the window seal. Use a razor blade to scrape the remaining rubber and glue from the window frame.

Apply a thin layer of super glue or loctite to the contact points on the window frame.

Use a seal with a window slot as a replacement. Peel the sticky strip from the seal and attach the seal to the window frame. Run the seal around the frame, using your fingers to push it into place.

Stop the seal when you have come full circle. Use the razor blade to cut the seal. Apply a small bead of super glue to each and hold them together until the glue has dried.

Tips & Warnings

  • There are several different seal styles available. Check the old seal for the correct match.
  • Allow the seal to dry completely before opening and closing the window. Pressure on the seal can cause it to fall out of place.

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