Replacing Broken Window Pane [cracked] Official

Take these final dimensions to your local hardware store or glass shop. They will cut the glass for you. Request (about 2.5mm thick) for small windows, or double-strength (3mm) for larger panes.

Apply a thin, continuous bead of glazing putty (for wood) or silicone caulk (for vinyl) into the groove (rabbet) where the glass will sit. This creates a "bed" that cushions the glass and seals out moisture. replacing broken window pane

Clean the glass with a non-ammonia-based cleaner after the paint or caulk has fully cured. Take these final dimensions to your local hardware