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Chimney Repairs

Repointing, rebuilds, flaunching, cowls and lead flashing. We stop leaks at the most common failure point on West London's roofs, since a chimney takes the worst of the weather.

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The usual suspect

Chimneys are where roofs leak

Tall, exposed and full of joints, the chimney stack takes more weather than almost any part of the roof. So it's no surprise it's behind so many leaks. Eroded pointing, cracked flaunching, failed lead flashing and uncapped flues all let water into the structure below.

We repair the whole stack rather than just the symptom. That means raking out and repointing the brickwork, renewing the flaunching around the pots, re-dressing the lead where the stack meets the roof, and fitting cowls to redundant flues. Where a stack is beyond repair, we can rebuild it or take it down and weather over.

Our guide to chimney repairs and repointing covers why stacks fail before the rest of the roof, and how to tell repointing from a full rebuild.

Chimney work we do

  • Repointing eroded and cracked mortar joints
  • New flaunching to secure and weather the pots
  • Lead flashing and soakers to the stack renewed
  • Cowls fitted to redundant or damp-prone flues
  • Unsafe or leaning stacks rebuilt
  • Chimneys taken down and weathered over
How it works

The whole stack, sorted

1

Inspect the stack

We check the pointing, flaunching, flashing and pots for the true cause. This step usually explains where the leak is really coming from.

2

Written quote

A clear price for the repointing, flashing or rebuild required. You'll know the cost before any work starts.

3

Carry out repairs

Brickwork, flaunching and leadwork renewed; cowls fitted as needed. We work carefully at height, since safety matters as much as the finish.

4

Safe & watertight

We leave the stack sound, the roof dry, and the work guaranteed. The site is tidied before we go.

Chimney repair questions

Do you repair chimneys and repoint brickwork? +
Yes. We carry out the full range of chimney work — repointing eroded mortar joints, renewing the flaunching that holds the pots, replacing cracked or slipped lead flashing at the base, fitting cowls, and rebuilding stacks that have become unsafe.
Why is my chimney causing a leak? +
Chimneys are one of the most common sources of roof leaks. Water gets in through cracked flaunching, eroded pointing, failed lead flashing where the stack meets the roof, or a redundant flue with no cowl. Because the leak often shows up some distance away inside, it's worth having the whole stack checked properly.
Should I remove or cap an unused chimney? +
If a chimney is no longer used, capping it with a vented cowl keeps rain out while still letting the flue breathe to prevent damp. Full removal is an option too, but capping and weathering the stack correctly is usually the simpler, cheaper way to stop leaks and damp.
Is my chimney safe? +
Leaning stacks, loose pots, crumbling mortar and cracked flaunching can all become a safety issue, particularly on tall Victorian stacks exposed to West London's weather. If you have any concerns, we can inspect the chimney and advise on whether it needs repointing, re-flaunching or rebuilding.

Written by the Oldfield Roofing team — roofing and building specialists based in Fulham, covering Fulham, Putney, Hammersmith, Chelsea and Wandsworth.

Chimney leaking or looking rough?

Get a free quote for repointing, re-flashing or a full rebuild. Since chimneys are a common source of leaks, it's worth getting checked sooner rather than later.

Get a Free Quote