A few hours with fresh putty can add years to your windows, and the satisfaction of a clean, tight seal is something you’ll feel every time a storm rolls in.
Apply a thin bed of putty inside the frame’s rabbet, press the glass gently into place, and insert new glazing points every 6–8 inches to secure it. window putty replacement
Scrape away debris, rust (on metal frames), or old paint. For wooden frames, apply a thin coat of boiled linseed oil or primer to prevent the new putty from drying out too fast. A few hours with fresh putty can add
Roll a rope of putty between your palms, about ½ inch thick. Press it firmly along the glass-to-frame joint. Then, smooth it with a putty knife held at a 45-degree angle, creating a neat, sloping seal that sheds water. For wooden frames, apply a thin coat of