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How to replace broken window glass and save £250 with this DIY job.
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Thanks to Merstham Glass
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HOW TO REPLACE A BROKEN WINDOW PANE
Replacing the glass in an old sash window can be a meticulous but manageable process. Below is a general step-by-step guide. Always wear appropriate safety gear, including gloves and safety glasses, during the process.
Materials and Tools:
– New glass pane (cut to size)
– Glazier’s points
– Putty knife or chisel
– Paintbrush
– Glazing putty
– Multi-tool (oscillating tool with a wood/metal blade)
– Safety gear (gloves, safety glasses)
Remove Old Glass and Putty:
Carefully remove the broken glass from the sash, disposing of it safely.
Use your multi-tool with a scraper or cutting blade attachment to remove the old putty. Hold the multi-tool at a shallow angle to the glass and gently work it along the putty lines, loosening and removing the old material. Be patient and careful to avoid damage to the window frame.
Clean and Prepare the Sash:
Once the old putty is removed, thoroughly clean the area where the new glass will be installed.
This will help the new putty adhere better.
Install the New Glass:
Place the new glass pane into the sash.
Insert glazier’s sprigs into the wood around the glass, spacing them evenly. These small metal points help hold the glass in place. Use a putty knife or another flat tool to push the points into the wood.
Apply New Putty:
Knead the glazing putty until it’s soft and pliable. Roll it into thin ropes and press it into the sash around the glass, covering the glazier’s points and creating a seal.
Use a putty knife to smooth and shape the putty, forming a neat, angled bead along the edge of the glass. Remove excess putty.
Allow Putty to Cure:
Let the putty cure and harden according to the manufacturer’s instructions. This may take several days or even weeks.
Final Finishes:
Once the putty is cured, you can paint it to match the rest of the window frame.
Reinstall the sash window if you removed it during the process.
Tips:
Work carefully and patiently, especially when removing old putty and glass, to avoid causing further damage to the window.
If you’re uncomfortable with this process, consider consulting with or hiring a professional.
To protect yourself from glass shards and other hazards, practice safety precautions, such as working in a well-ventilated area and wearing safety gear.
