A roof valley collects water from two slopes, so it handles more rain than any other part of the roof. Leaves, moss and cracked mortar can block it, and older lead or felt valleys can split.
We clear, repair and replace valleys in lead, GRP and preformed products, and rebuild the tiles either side so water flows freely.
What this service covers
- Clearing blocked valleys
- Replacing split lead valley linings
- Installing GRP or preformed dry valleys
- Re-cutting and refixing valley tiles
- Removing failed mortar from valleys
Signs you may need it
- Leaks on an internal ceiling at a corner where roofs meet
- Debris or moss piled in the valley
- Cracked mortar along valley tiles
- Water overshooting gutters below the valley
How we approach it
- 01
Inspect
We check the valley lining and the tiles either side.
- 02
Strip back
Tiles alongside the valley are lifted to expose the lining.
- 03
Renew lining
A new valley in lead, GRP or a dry valley system is fitted.
- 04
Re-tile
Tiles are cut and fixed back neatly and the valley left clear.
Options we commonly discuss
- Lead valley
- GRP valley
- Dry valley system
What affects the quotation
Your free written quotation is priced for your property and covers:
- Valley length
- Choice of lining
- Tile type and cutting
- Access
- Condition of timber beneath
Any guarantee depends on the job and materials and is stated in your written quotation.
Roof valley repairs: common questions
How often should valleys be cleared?
Homes near trees benefit from checking at least annually, especially after autumn.
Is lead or GRP better?
Both work well when installed correctly. Lead is traditional and long-lived; GRP is lighter and has no scrap value, which deters theft.
Can a valley be repaired rather than replaced?
Small defects can be repaired, but a split or worn-through lining is usually best replaced.