How do I know my roof needs replacing and not just repairing?
Look for patterns, not single faults. One slipped tile is a repair job. These signs suggest the whole roof is reaching the end of its life:
- Tiles flaking or crumbling across a whole slope, not just in one spot.
- Slates slipping because the fixing nails have rusted through, often called nail sickness on older slate roofs.
- A sagging ridge or a dip in the roof line, which can mean the timbers underneath are weak.
- Daylight showing through the roof boards from the loft.
- Leaks that come back after each repair.
If you are not sure, a roof inspection will give you a written view before you decide. For smaller faults, roof repair may be the sensible choice.

