Lead flashing is used to seal joints where roof sections meet structures like chimneys, dormers or walls. It prevents water ingress at vulnerable points and is essential for a watertight roof.

• Damp patches near chimney breasts

• Cracked or missing lead flashing

• Moss or vegetation growing in joints

• Loose or leaning chimney stack

• Debris (bits of mortar/brick) around gutters

Yes — water ingress from faulty lead flashing or chimney cracks can rot rafters, ceiling joists, and internal plaster. Early repairs save major costs down the line.

We do. Repointing involves renewing the mortar between bricks to stop crumbling and keep the stack structurally sound. We use lime mortar where required for listed or older properties.

Costs depend on access, severity, and whether scaffold is required.

• Basic flashing repair: from £250

• Full chimney repointing: from £500–£1,000+

For accurate pricing, see 👉/Quotes & Pricing FAQs.

Yes — we can safely remove chimney stacks or cap them to stop rain, animals, and debris entering disused flues.

Yes. We repair and replace all types of lead flashing, including:

• Chimney flashings

• Step flashings

• Box gutters

• Lead valleys and aprons

Yes — lead is still widely used and very effective. However, we also offer lead-alternatives (e.g. Ubiflex, Wakaflex) for clients seeking non-toxic or lower-cost options.

Yes — but care must be taken in freezing or very wet conditions. We work year-round and monitor conditions to ensure safe, watertight repairs.

If your chimney flashing or stack is part of the main roof structure, we’ll assess and include it in the quote if needed. Learn more in our 👉/New Roof FAQs.