| Condition | Action | |-----------|--------| | Hairline crack (no movement) | Epoxy or wood filler | | Crack with slight rot (soft spot < 1” deep) | Cut out rot, fill with epoxy wood filler | | Deep rot / crumbling wood | Replace the sill | | Crack in masonry sill | Use masonry crack filler or hydraulic cement |
Depending on the material of your window sill (wood, concrete, or vinyl/PVC) and the severity of the damage, the repair method will vary. Below are step-by-step instructions for the most common scenarios. cracked window sill repair
Exterior concrete sills often crack due to freeze-thaw cycles or settling. | Condition | Action | |-----------|--------| | Hairline
I can also look up if the damage looks like it might require a full sill replacement. I can also look up if the damage
Ensure your sill tilts slightly away from the house so water runs off rather than pooling.
Sometimes a repair is a temporary fix, and replacement is the better long-term option:
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