How to Repair Rotten Windows

Last updated: 15 Mar 2024

Repairing rotten windows in the UK is an important task to maintain the integrity and energy efficiency of your home. Here are some steps to follow:

  1. Remove any loose or flaking paint from the affected area of the window frame using a wire brush or scraper.

  2. Use a chisel or screwdriver to remove any areas of rot. Make sure to remove all the affected wood, as leaving any behind can cause the rot to spread.

  3. Apply a wood hardener to the remaining wood to strengthen and stabilize it. This will help prevent further decay.

  4. Apply a wood filler to the area where the rot was removed, smoothing it out with a putty knife. Allow the filler to dry completely before sanding it down to a smooth finish.

  5. Apply a primer to the entire window frame to prepare it for painting. Allow the primer to dry completely before painting the window frame with a high-quality exterior paint.

It's important to note that if the rot is extensive or if the window is too damaged, it may be necessary to replace the entire window. In this case, it's best to consult a professional window installer to ensure proper installation and sealing to maintain the energy efficiency of your home.

Regular maintenance and inspection of your windows can help prevent rot from occurring in the first place. Make sure to keep the windows clean and free of debris, and to paint and seal them regularly to protect against moisture and decay.

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