How to seal a window

Bradley
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How to seal a window

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Project Overview

Putting a seal on your window is a simple way to reduce drafts and save on your heating and cooling bills. We’ll show you how easy it is to measure your window up and install the sealing tape in your window frame.
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Man measuring tile on work bench before cutting
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Measure twice, cut once

You can rub out a pencil mark but you can’t undo a cut from your saw. Whether you are working with timber, tiles, glass or any other building material, you should always double check your measurements before you cut.

Step by Step Instructions

1 Measure and cut weather strip to seal the window
2 Use weather strip to seal the window
  • Step 1. Measure and cut weather strip to seal the window

    Open your window and measure the dimensions of the inside of your frame where the window sits when it is closed. There are three different types of weather strip – brush, foam and rubber. Choose the weather strip that works for your window and cut it to size.
  • Step 2. Use weather strip to seal the window

    Peel the adhesive backing off the pieces of weather strip and stick them into position on the frame of your window. Before you start, it is a good idea to clean the frame down with a damp cloth to remove any dirt and dust to help the weather strip stick.

Tools and Materials

Tools

  • Cleaning cloth
  • Measuring tape
  • Safety gloves
  • Trimming knife

Materials

  • Weather strip

Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page. You can also use a simple test kit from Bunnings to indicate the presence of lead-based paint Test.
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