Replacing Broken Window Glass: Complete DIY Guide

Professional glazing is expensive. With a repair kit and proper technique, DIY glass replacement is achievable for most homeowners.

Removing Broken Glass

1. Wear work gloves—100% care required
2. For cracks: remove putty (sealant between glass and frame) using chisel or jackknife—bit by bit to avoid frame damage
3. Remove glazier points (small metal triangles securing glass)
4. For hardened putty: soften with heat (soldering iron) applied to putty only—never directly on glass

Installing New Glass

1. Coat frame wood heavily with linseed oil; let soak completely (keeps new putty pliable and well-bonded)
2. Apply thin putty layer as cushion and sealant
3. Set new glass firmly; secure with glazier points driven by glazing tool
4. Apply putty along entire frame—soften with thinner if too stiff
5. Smooth with sandpaper to eliminate rough spots

This overview provides foundational knowledge. Patience and care yield professional-looking results at a fraction of the cost.