Day 13: Add draft excluder insulation tape to your windows and doors

Adding draft excluders to your windows will save you around £45 per year, meaning they’ll more than pay for themselves in the first year.

How do you add draft excluder tape to your windows?

Adding draft excluder insulation tape to your windows is a straightforward and effective way to reduce drafts and improve energy efficiency in your home. Here are the steps to install draft excluder insulation tape:

Materials You’ll Need:

  • Draft excluder insulation tape (also known as weatherstripping tape)
  • Measuring tape
  • Scissors or utility knife
  • Cleaning supplies (e.g., window cleaner, paper towels)
  • A damp cloth
  • A dry cloth


  1. Clean the Window Frame:
    • Start by cleaning the window frame and surrounding area. Remove any dust, dirt, or debris that could prevent the tape from adhering properly. Use window cleaner and paper towels for this task.
  2. Measure the Window:
    • Measure the length of each window frame where you plan to apply the insulation tape. Be sure to measure all sides of the frame (top, bottom, and sides).
  3. Cut the Tape:
    • Cut the draft excluder insulation tape to the measured lengths. Use scissors or a utility knife to make clean, straight cuts.
  4. Apply the Tape:
    • Peel off the backing from the tape to expose the adhesive side. Carefully align the tape with the window frame where you measured earlier.
    • Press the tape firmly against the window frame, ensuring it adheres securely. Make sure the tape creates a seal between the window frame and the window itself.
  5. Repeat for All Sides:
    • Repeat the process for each side of the window frame, applying the tape to the top, bottom, and sides. Be thorough to cover all potential draft points.
  6. Smooth and Secure the Tape:
    • After applying the tape to each side, use your fingers or a flat tool to smooth it out and ensure a tight seal. Press down on the tape to secure it firmly.
  7. Trim Excess Tape (if necessary):
    • If you have any excess tape protruding from the frame, trim it neatly with scissors or a utility knife.
  8. Check for Proper Sealing:
    • Close the window and check for any visible gaps between the window and the frame. If you notice any areas where the tape is not making proper contact, press it down again to ensure a seal.
  9. Clean Up:
    • Use a damp cloth to wipe away any residue or adhesive from your hands or the window frame. Follow up with a dry cloth to ensure the area is clean and dry.
  10. Test for Drafts:
    • After installation, test for drafts by holding your hand near the window edges while the window is closed and the weather is cold outside. If you feel air movement, recheck the tape’s positioning and seal any gaps.

Draft excluder insulation tape is an effective and affordable way to improve the insulation of your windows and reduce heat loss. It’s also easy to remove if needed. Properly sealing drafts can help you save on energy costs and increase your home’s comfort.


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