Repair Cracked Window Sill [top] < PREMIUM - EDITION >

: Inspect the sill for soft, spongy wood, which indicates rot. Remove loose debris and flaking paint with a utility knife or scraper.

Hairline cracks in paint or the surface material are usually DIY-friendly and can be filled with standard fillers. repair cracked window sill

: Apply a liquid wood hardener to strengthen remaining fibers. Use a two-part epoxy filler to rebuild the shape, as it chemically bonds with the wood and won't shrink like standard putty. : Inspect the sill for soft, spongy wood,