Chimney stack repair in progress on a Devon property
Chimneys & Leadwork

Chimneys Repair

Flaunching failure, spalled brickwork or damp on the chimney breast, Sherford Roofing diagnoses the real cause and repairs it properly, not just the symptom.

A chimney stack is the most exposed, most complex part of any roof, weathered on all four sides, and reliant on flaunching, brickwork, pointing and flashing all doing their job together. When one element fails, water finds a way in, and the damp patch on your chimney breast is often the last thing to show, long after the leak started.

Sherford Roofing repairs chimney stacks across Plymouth and Devon, from a single cracked flaunching to a full stack rebuild. Andy Crane surveys every job at roof level before quoting, so you get an honest answer on whether your chimney needs repointing or rebuilding, not the more expensive option by default.

Our Process

Step 1

Roof-Level Survey

We inspect the stack directly, not from the ground, flaunching, pointing, brickwork and flashing are checked in turn to find the actual cause of the leak.

Step 2

Repoint or Rebuild Decision

If the brick faces are sound, we repoint. If bricks are spalling or the stack has structural movement, we quote for a partial or full rebuild, explained plainly before any work starts.

Step 3

Flaunching & Pots

Failed flaunching is fully removed and re-cast in a correctly profiled, waterproof mortar mix, with pots re-bedded and sealed.

Step 4

Flashing Check

Lead flashing at the stack-to-roof junction is inspected and replaced if perished, a very common co-cause of chimney leaks that repointing alone won't fix.

UK Standards & Best Practice

Lead flashing at the chimney junction is installed to BS 6915, using Code 4 or Code 5 lead depending on exposure, correctly detailed, it should outlast the roof around it.

Got Questions?

Chimneys Repair FAQs

If the brick faces are intact and it's just the mortar that has failed, repointing restores weathertightness. If the bricks themselves are spalling, crumbling, or the stack shows structural movement, a partial or full rebuild is needed instead.

Almost always water tracking in via failed flaunching, a cracked pot, or perished lead flashing where the stack meets the roof, rarely the fireplace itself. It usually takes a roof-level inspection to find the actual entry point.

Annually, and always after a significant storm. Flaunching and flashing are the two elements most likely to fail first, and catching a crack early is far cheaper than repairing the water damage it causes if left.

Need Chimneys Repair?

Free estimates across Plymouth and Devon. Bauder certified, Checkatrade vetted, honest advice every time.

Or call our office: 01752 741888