Chimney repair costs depend on the type of work needed and the access required. Here is an honest guide to chimney repointing, flaunching, lead flashing, and pot replacement costs in 2026.
Chimney Repair Costs in the UK (2026)
Chimney repairs are one of the most common roofing jobs in the UK, particularly on older properties where mortar, lead flashings, and chimney pots deteriorate over time. Here is a realistic guide to what different types of chimney repair cost.
Typical Chimney Repair Costs
| Type of Work | Typical Cost |
|---|---|
| Chimney repointing (small stack) | £300–£600 |
| Chimney repointing (large stack) | £600–£1,200 |
| Flaunching repair or replacement | £150–£400 |
| Lead flashing repair | £200–£500 |
| Lead flashing replacement | £400–£900 |
| Chimney pot replacement (single) | £150–£350 |
| Chimney pot replacement (multiple) | £300–£700 |
| Chimney stack rebuild (partial) | £800–£2,000 |
| Full chimney removal | £1,000–£3,000 |
These are guide prices only. The actual cost depends on the size of the stack, the access required, and the extent of the damage.
What Does Chimney Repointing Involve?
Repointing means raking out the old, crumbling mortar between the bricks and replacing it with fresh mortar. It is one of the most important maintenance tasks for any chimney — failed pointing allows water to penetrate the stack, which can cause serious structural damage over time.
A small chimney stack can usually be repointed in a day. Larger stacks or those requiring scaffolding will take longer and cost more.
What is Flaunching?
Flaunching is the sloped mortar bed that holds the chimney pots in place at the top of the stack. It is exposed to the elements and tends to crack and crumble over time. Failed flaunching allows water into the stack and can cause pots to become unstable.
Repairing or replacing flaunching is a relatively straightforward job and is usually done at the same time as repointing.
Lead Flashing Repairs
Lead flashing seals the joint between the chimney stack and the roof covering. When it fails — through cracking, lifting, or corrosion — water can track down behind the stack and into the roof space.
Minor repairs (re-dressing or re-sealing existing flashing) are relatively inexpensive. Full replacement involves cutting new lead and dressing it into the mortar joints, which takes longer and costs more.
Does Scaffolding Add to the Cost?
Yes — if the chimney cannot be safely accessed from the roof, scaffolding will be required. A typical scaffold for chimney access costs £300–£600 and is usually shared across the cost of the job.
Get a Free Chimney Repair Quote
Same Day Roof Repair provides free, no-obligation quotes for all chimney repairs across Peterborough, Cambridgeshire, Lincolnshire, and Norfolk. Call 07878 827 758 or use our contact form.
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