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Step 2 · Prepare for Glass Replacement

If replacing glass, begin by carefully removing any remaining broken glass. Use a putty knife to gently pry out larger pieces. For smaller shards and old glazing compound, use a chisel or stiff brush. Once all loose glass is removed, scrape away all old putty, sealant, and paint from the sash rebate (the groove where the glass sits). A stiff wire brush or sandpaper can be used to ensure the rebate is clean, smooth, and free of debris. Wipe down the rebate with a tack cloth or damp rag to remove fine dust.

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Step 2 · Prepare for Glass Replacement

If replacing glass, begin by carefully removing any remaining broken glass. Use a putty knife to gently pry out larger pieces. For smaller shards and old glazing compound, use a chisel or stiff brush. Once all loose glass is removed, scrape away all old putty, sealant, and paint from the sash rebate (the groove where the glass sits). A stiff wire brush or sandpaper can be used to ensure the rebate is clean, smooth, and free of debris. Wipe down the rebate with a tack cloth or damp rag to remove fine dust.

Videos for this step

Remove Old Glazing PuttyRemove Old Glass and Glazing and MeasureRemove Broken Glass and Old Putty

Tools and Materials

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Window Repair

Step 2 of 6·5.5 hr left

Assess Window Damage
30 minutes5 items
2
Prepare for Glass Replacement
60 minutes8 items
3
Install New Glass Pane
75 minutes8 items
4
Repair Damaged Sash Components
90 minutes9 items
5
Replace Weatherstripping
45 minutes5 items
6
Paint and Finish Repairs
60 minutes7 items
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