Overview
Rubbing at the bottom is almost always a dropped door - top hinge worn or loose, latch corner sags down. Occasionally the threshold has been kicked up or a screw has worked proud.
Symptoms
- Scrape marks on the threshold.
- Door bottom wearing.
Common causes
- Top hinge dropped.
- Threshold screw proud.
- Threshold damaged.
When to call a professional
- Threshold needs replacing.
Prevention
- Don't sit heavy items on the open door.