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Roofer dressing new lead flashing around a chimney

Lead Flashing & Leadwork

Splits, poor laps and shallow chases cause endless 'mystery leaks' — proper leadwork fixes them once, not annually.
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  • Local roofers in our network
  • TrustMark & NFRC framing checked

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About lead flashing & leadwork

Lead is where roofs meet walls, chimneys, windows and each other — and where a large share of all roof leaks begin. Good leadwork is a craft: correctly sized code lead, proper laps and steps cut into the mortar joints, and dressing that lets the metal expand and contract without splitting. The roofers we connect you with renew step and cover flashings, chimney aprons and back gutters, lead valleys, bay-window tops and porch roofs, and repair split or lifted lead where a full renewal isn't needed. Where theft or budget rules out lead, they can advise on modern composite alternatives honestly.

How we help

Find Trusted Roofers is a national network that connects UK homeowners with local roofers. We are not a roofing contractor and we don't do the work ourselves — instead, you tell us about your lead flashing job once, and we match you with a roofer in our network who covers your postcode and works on your roof type. Every roofer quotes from their own survey; you deal directly with them and choose whether to proceed.

We check the roofers in our network against Companies House, confirm public liability insurance, and note any TrustMark, NFRC or CompetentRoofer membership. We verify what we can — we don't guarantee the work, which is contracted directly between you and the roofer.

Available across the UK

We connect homeowners with local roofers offering lead flashing in towns and cities across England, Scotland, Wales and Northern Ireland. Browse areas we cover.

Lead Flashing & Leadwork — FAQs

How do I know my flashing has failed?
Damp patches near chimney breasts or where an extension meets the house, staining down interior walls after driven rain, and visibly lifted, cracked or cement-smeared flashing outside are the classic signs.
How much does lead flashing repair cost?
Re-dressing or refixing lifted flashing might cost £150–£300; renewing a chimney's full lead set (apron, steps, back gutter) typically £400–£900 depending on access. Lead valleys cost more as tiles each side must come up.
How long does leadwork last?
Properly specified and fixed lead routinely lasts 60–100 years — usually outliving the roof covering around it. Most 'lead failures' are actually installation faults: undersized code, over-long runs without expansion joints, or mortar smeared over the top.
Is there an alternative to lead?
Yes — composite flashing products (such as flexible aluminium-cored membranes) perform well, cost less, and have no theft value, which matters on churches, schools and unoccupied buildings. A roofer who works both will advise which suits your roof.
Why is there cement over my flashing?
It's a common bodge: cement fillets crack away from both surfaces within a few seasons and trap water behind them. The correct repair is stepped lead flashing chased into the mortar joints — slightly dearer, decades more durable.

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