To start the week off in Oxted, our team fitted a run of new code 4 welded lead flashing around a stonework chimney stack and wall abutment – a specialist job that called in a lead welding specialist to prefabricate the pieces off-site before we installed them.

What the Oxted Job Involved
This wasn’t a standard felt or mortar-fillet job – the stonework chimney stack and the step in the roofline called for proper code 4 lead, dressed and welded to follow every angle of the stone. Here’s how it came together.
Welded Off-Site, Fitted On-Site
The lead itself was welded up by Jay at Just Lead Workshop, who prefabricated the flashing pieces in his workshop to match the exact angles of the chimney and abutment. Our team then installed the finished pieces on site, dressing them in tight against the stonework and tiles.
Why Welded Lead Is Worth It:
- A Proper Weld, Not a Lap Joint: Welded corners and joints seal completely, rather than relying on overlapping lead that can work loose over time.
- Built to Match the Stone: Prefabricating off-site meant the flashing could be shaped precisely to the stonework’s uneven coursing before it ever went up a ladder.

Dressing the Lead Around the Ridge
Where the flashing meets the ridge bonnet tile, the lead had to be dressed tightly around the curve of the tile and up into the brickwork, so there’s no gap for water to find its way in behind the stack.

A Clean Wall Abutment Detail
At the apex, where the roofline steps up into the stone wall, the welded lead gives a single, continuous seal rather than a patchwork of smaller pieces – exactly the kind of detail that’s easy to get wrong and expensive to fix later if it’s rushed.

Prefabricated off-site, welded to the angles of the stonework, then dressed in on the day – proper lead flashing done the right way round.
Choose BT Roofing Services for Lead Work in Oxted
This job in Oxted shows the kind of detail that goes into proper lead work – not just dressing lead on a roof, but working with specialists to get welded joints that are built to last around awkward stonework and abutments. If your roof has a chimney stack, valley or wall abutment that needs lead flashing done properly, get in touch for an honest, no-obligation quote – call us on 07552 404502 or email info@btroofingservices.co.uk.