Repair A Rotted Exterior Window Sill | How To

More than half the sill is rotted, the window frame is sagging, or rot has spread deep into the main window frame. Phase 1: Assessment and Preparation

By following these steps and using the right tools and materials, you can successfully repair a rotted exterior window sill and prevent further damage to your home. how to repair a rotted exterior window sill

Wear safety glasses, a dust mask (N95), and work gloves. Rotted wood often harbors mold or mildew. More than half the sill is rotted, the

A well-repaired epoxy sill can last 10–15 years. But always address the source of the moisture first—otherwise, you’ll be doing this repair again next spring. the window frame is sagging