Chapter 1: Why does water get in where the roof meets the tile-hung wall of our Liphook house?
What we find
Tile hanging is a way of covering a wall with small clay tiles fixed to battens, and in Liphook it appears across the older houses, often rising straight up from the roof slope. Where the tiled wall meets the roof, the two surfaces overlap and a strip of lead must be dressed under the wall tiles and over the roof tiles to carry water out. If that lead has lifted, split or been bridged with mastic, water runs behind the wall tiles and into the structure.
The signs are a damp patch on an upper-floor wall below the junction, a brown stain on the ceiling edge, and wall tiles that have slipped or cracked just above the roof line. Because the water enters behind a covering, the damage can run on for years before it shows. Timber behind the tiles may be soft by the time anyone looks.
What we fix
We lift the lowest courses of wall tile to see the back of the junction. If the batten behind is sound, we fit new lead in lengths short enough to move with the temperature, tuck the upper edge under the tile course, and dress the lower edge over the roof tiles. Any soft batten is cut out and replaced, and the wall tiles are rehung using matched reclaimed clay where the originals are broken, so that colour and texture still sit with the neighbouring wall.
Mastic is not a repair here, and we do not use it as one. Lead properly dressed lasts for many years and can be seen in photographs, so you can check the work yourself after we leave. Typical UK prices for chimney or abutment leadwork run from £350 to £920, if nothing unexpected turns up. Your fixed quote follows the survey. The lead roofing and leadwork page explains the choices.