Care for the junctions that keep water out.
Failed flashing can let water in where the roof joins a chimney, wall or adjoining structure. We identify the fault before specifying the repair.
Where flashing is used
Flashing forms part of the weathering detail where a roof meets a wall, chimney or adjoining structure. The condition of the material and the way the junction is formed both matter when investigating a leak.
Signs you may notice
Damp near a chimney breast, staining at a roof-to-wall junction or leaks around an extension can make flashing worth checking. These symptoms can also have other causes, so the source needs investigation.
Possible causes
Split, lifted or displaced flashing and defects in its adjoining joints may allow water entry. Nearby masonry or roof coverings may also contribute. An assessment considers the junction as a whole rather than assuming the lead alone is responsible.
Inspecting condition and detailing
We consider how the flashing meets the roof and wall, the visible condition of the material and whether adjoining joints need attention. Tell us about earlier repairs and whether the leak follows a particular wind direction or type of rain.
How we assess and repair
After discussing safe access, we assess the relevant junction and explain the likely fault. Depending on what is found, the recommendation may involve a local repair, replacement flashing or work to adjoining details.
The proposed remedy, materials, access requirements and extent of the work are set out for agreement. The aim is to address the identified defect rather than repeatedly treating the visible damp indoors.
Your questions answered
Can flashing be repaired without replacing the roof?
A local junction repair may be possible where the surrounding roof is sound. The condition of both the flashing and adjoining materials determines the scope.
Is damp near a wall definitely a flashing problem?
No. The symptom indicates an area to investigate, but the source may involve masonry, the covering or another roof detail.
Can you check chimney flashing?
Yes, tell us where the leak appears and whether it follows rain. The chimney, adjoining roof and flashing need considering together.