Fix Cracked Window Sill

Scrape away any mess with the edge of the knife.

Fix cracked window sill.

Wearing a dust mask or respirator remove the peeling stuff with a stiff wire brush and or a paint scraper. How to fix a crack in a marble window sill. Fix any small or medium cracks in your concrete window sill with caulk. Fit the narrow tip of a bottle of silicone latex caulk into each crack and overfill it by about inch.

Stone windowsills add old world charm to many buildings. It is a very durable natural stone prized for its durability and natural beauty. Rub off flaking paint or loose concrete along the crack with the wire brush and make sure to clean out any moss that may be growing inside. Window sills are designed to divert water away from the house and as a result they get a battering from the weather over time wooden sills can rot and concrete window sills can develop cracks.

See below for tools and a shoppin. As this may. Spread and flatten the caulk with a small putty knife. Repairing a concrete window sill could appear to be a major job that s far beyond the skills of the average diyer but with the proper knowledge tools material and preparation you might find it s worth considering having a go yourself unless a complete rebuild is necessary.

Chip says peeling is usually caused by exposure to moisture and sun hard to avoid i know. How to repair sandstone window sills. This old house general contractor tom silva shares some tricks of the trade for installing a new long lasting windowsill. Repairing window sills isn t a hard diy and i try to share simple ways to make diy improvements to your home.

The way to prevent this is to avoid skim coating window sills or other wood. Just fill the checks cracks and voids but don t cover the surface of the wood. John leeke covers the topic in depth in his book save america s windows which i recommend reading whole heartedly. You can use it.

If sills are sandstone the stone tends to deteriorate with age exposure to rain snow and freeze. Fill any cracks with a paintable exterior sealant.