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Replacing a Pane of Glass Yourself in a Basement Window

Zelf een ruit in een kelderraam vervangen
Arjen
An article from ourArjen de Vos

Taking on the task of replacing a pane of glass yourself in a basement window might sound challenging, but with the proper steps and preparation, it’s quite manageable. We’re here to help you through the process of replacing your old pane with a new, sturdy plastic sheet. Whether you opt for acrylic or polycarbonate, we’ll guide you from removing the glazing beads to precisely putting in the new pane.

DIY time
+/- 1.5 hours
Level
Advanced

Supplies

Custom-cut acrylic or polycarbonate
Clear-cast-GS-acrylic-sheet
Custom-cut acrylic or polycarbonate
Spacers (3 mm thick)
Replacing a pane of glass yourself? - See our guide
Spacers (3 mm thick)

Tools

  • Multi-tool saw
  • Tape measure
  • Primer brush
  • Anti-static cleaner
  • Paint scraper

Materials

  • Glazing tape
  • Paintable sealant
  • Primer
  • New glazing beads if needed

1) Examine the window structure

Begin with thorough preparation. Check how the pane is fitted in the frame. This guide targets windows with glazing beads. Look out for any adhesive or putty used. If so, you might need a multi-tool saw to remove the beads. Later, you can finish the back with fresh putty or triangular wooden beads.

2) Remove the glazing beads

Precision is key when taking out glazing beads. Are there adhesives or sealant present? You might need a multi-tool saw to detach them. Be prepared for potential damage to old beads. Beads you can remove with a chisel and hammer are often reusable. Work carefully to avoid damage to the frame.

3) Take out the old pane

Once the beads are off, carefully lift the old pane from the frame. Clean the frame thoroughly, especially removing any sealant remnants. A paint scraper can help clear them completely. Measure the pane using a tape measure, and allow a 3 mm gap on all sides for thermal expansion. Order your custom-sized pane with our sheet calculator.

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Sheet configurator

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4) Custom-fit the glazing beads

If you’ve sawn off the old beads, it’s time for new, custom-fit glazing beads. Alternatively, order standard beads if available. Apply a primer to the new beads to provide a solid base for the paint.

5) Prepare the window frame

Before fitting the new pane, you need to thoroughly degrease the window frame. This ensures strong adhesion. Now, place glazing tape around the frame to securely press the plastic sheet against it.

6) Install the new pane

Use spacers of 3 mm thickness at at least four corners of the frame. This distributes the pane evenly and absorbs any vibrations. Clamp the new plastic pane in place. Secure the new glazing beads, using glazing tape, by stapling or gluing them, ensuring the pane is firmly anchored. Work meticulously to achieve a great sealed and secure attachment.

7) Finish and paint

You’re making great progress, but finishing is crucial for a beautiful and lasting outcome. Seal joints with paintable sealant for extra protection against moisture and draughts. Choose a colour that matches your window frame.

Afterwards, you can paint the glazing beads and frame if you want them to match your interior or exterior. Apply the paint in thin, even layers for a stunning finish.

Naturally, you want your pane to be crystal clear. Use an anti-static cleaner to tidy up the sheet from dust and fingerprints.

Frequently Asked Questions

Get started with PlasticSheetsShop

Start replacing a pane of glass yourself in a basement window today and discover how easy it is to tailor plastic sheets to your needs. Order your acrylic or polycarbonate simply online with our sheet calculator. Experience quick delivery, perfect customisation, and the freedom to execute your project exactly as you envision it.

Arjen
Arjen de VosArjen de Vos, a product expert and seasoned DIY specialist, brings a wealth of experience in interior construction to his role at Plasticsheetsshop. With over a decade of expertise in interior design and furniture making, he stands out as a versatile and knowledgeable professional in his field.

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Replacing a pane of glass yourself? - See our guide