7 signs you might need a new roof

The clearest signs you may need a new roof are widespread or repeated leaks, tiles that are cracking or perishing across the whole roof, a sagging roofline, daylight or damp in the loft, and a roof that has simply reached the end of its lifespan. One or two of these often means a repair will do; several together usually point to replacement.

1. Leaks in more than one place

A single, traceable leak is usually a repair. Several leaks, or a leak that keeps coming back after patching, suggests the covering or underlay is failing more widely.

2. Tiles cracking or perishing across the roof

When tiles or slates are flaking, crumbling or breaking in many places — not just one spot — the material is at the end of its life.

3. A sagging roofline

A dip or sag along the ridge or slope can indicate moisture in the timbers or a structural issue. This always warrants a prompt inspection.

4. Daylight or damp in the loft

If you can see daylight through the roof boards, or notice damp patches, staining or a musty smell in the loft, water is getting in.

5. Lots of granules or debris in the gutters

Finding tile or felt debris building up in the gutters can be a sign the roof covering is breaking down.

6. Rising energy bills

A roof that has lost its insulation value or has gaps can let heat escape, nudging up your heating costs.

7. The roof is simply old

Concrete tiles last up to ~50 years and slate far longer, but felt and older coverings have a shorter life. If your roof is decades old and showing wear, it may be time. See our repair vs replacement guide and cost guide.