Chimney Repair Cost UK 2026
Chimney repair costs in the UK range from a few hundred pounds for minor repointing to several thousand for full stack rebuilds. Countrywide Roofing & Insulation carry out all types of chimney repair across England and Wales safely, with full scaffolding, and backed by our 10-year workmanship warranty and fully insured work.
✓ Chimney repairs fully insured and covered by our 10-year workmanship warranty
Our workmanship is CORC-accredited and fully insured, and comes with our 10-year warranty. If a surveyor has flagged your chimney as requiring work, we provide the professional completion documentation typically requested during a sale or remortgage.
Chimney Repair Cost by Type of Work
| Type of Repair | Typical Cost Range | Time Required | Notes |
|---|---|---|---|
| Chimney repointing | £300–£800 | 1 day | Replacing deteriorated mortar joints |
| Lead flashing repair | £200–£600 | Half day | Replacing or re-dressing lead around chimney base |
| Chimney pot replacement | £150–£400 per pot | Half day | Including new flaunching (mortar bed) |
| Flaunching repair | £200–£500 | Half–1 day | Re-bedding the mortar around pots |
| Partial chimney stack rebuild | £800–£2,500 | 1–2 days | Removing and rebuilding upper portion of stack |
| Full chimney stack rebuild | £2,000–£6,000 | 2–4 days | Full demolition and rebuild from roof level |
| Chimney removal (cap off) | £700–£1,500 | 1 day | Removing stack to roof level and making good |
All prices include scaffolding where needed, labour and materials. VAT at 20% included.
Chimney Repointing Cost in Detail
Repointing is the most common chimney repair. Old mortar joints crack and erode over time, allowing water ingress that can cause serious damage to the stack and interior of the property. Our repointing service includes:
- Raking out all deteriorated mortar to a minimum depth of 20mm
- Repointing with a breathable lime-based or hydraulic lime mortar appropriate for the property age
- Full inspection of all pointing, flaunching and flashings while on scaffolding
- Written report provided useful for insurance or sale purposes
Chimney repointing costs £300–£800 for a standard chimney stack. This is one of the most cost-effective repairs you can carry out, as it prevents water ingress that can damage:
- The chimney breast internally (plaster damage, damp patches)
- The surrounding roof tiles and lead flashings
- The chimney stack itself (frost damage to saturated mortar)
What Affects Chimney Repair Cost?
- Height and access: Taller properties or those requiring specialist access increase scaffolding costs (typically £300–£800 for a chimney-specific scaffold).
- Number of chimney stacks: Many Victorian and Edwardian properties have two or more stacks. We can combine all work into one scaffold visit to reduce overall cost.
- Extent of damage: A minor repoint is far cheaper than a full rebuild. Our free survey will confirm the extent needed we never recommend more work than necessary.
- Materials: Matching brick for a rebuild adds cost on older properties. We source period-appropriate materials where required.
Chimney Flashing Repair Cost
Lead flashing seals the joint between the chimney stack and the roof, and failed flashing is one of the most common causes of chimney leaks. As the table above shows, repairing or re-dressing the lead around a chimney base typically costs £200–£600 and takes around half a day. The final price depends on how much lead needs replacing rather than re-dressing, the size of the stack, and whether scaffolding is already up for other work. Flashing problems are worth fixing promptly — water tracking down the stack can damage plaster and timbers long before it shows indoors.
Chimney Flaunching Repair Cost
Flaunching is the sloped mortar cap on top of the stack that holds the pots in place and sheds rainwater. It takes the worst of the weather, so it cracks and breaks down over time, particularly after frost. Repair cost depends on access and scaffold requirements, the extent of the cracking, and whether the pots need lifting and re-setting. Flaunching, pots and upper brickwork are inspected together at the top of the stack, so we confirm the exact scope at the free survey and combine work into one scaffold visit wherever possible.
Chimney Stack Repair and Rebuild Costs
Where brickwork and mortar have gone beyond repointing, part or all of the stack may need rebuilding. As the table above shows, a partial rebuild of the upper courses typically costs £800–£2,500, and a full stack rebuild from roof level £2,000–£6,000. The main cost drivers are the condition of the existing brickwork, sourcing matching brick on older properties, and access. If flashing or repointing is also needed, completing it during the same scaffold visit is usually the most cost-effective route.
Frequently Asked Questions: Chimney Repair Costs
Q: How much does chimney repointing cost?
A: Typically £300–£800 for a standard chimney stack on a semi-detached or terraced house. Cost includes scaffolding for safe access.
Q: Do I need planning permission for chimney repairs?
A: Generally no for like-for-like repairs. If your property is listed or in a conservation area, contact your local authority before starting work.
Q: Can you repair a chimney in winter?
A: Mortar work should not be carried out in freezing conditions. We plan work around weather forecasts and can advise on optimal timing.
Q: How often does a chimney need repointing?
A: Typically every 20–30 years, depending on exposure to wind and rain. South and west-facing chimney faces deteriorate fastest.
Q: Is a chimney inspection included in the price?
A: Yes while on scaffolding, our team carries out a full visual inspection of the stack, pots, flaunching and flashings, and will advise on any additional work needed.
Q: How much does chimney flashing repair cost?
A: Repairing or re-dressing the lead flashing around a chimney typically costs £200–£600 including access. If the flashing has failed completely and needs full replacement, we confirm the exact cost at the free survey.
Q: Can a leaking chimney be repaired without rebuilding it?
A: Usually, yes. Most chimney leaks come from failed flashing, cracked flaunching or eroded mortar joints — all repairable without a rebuild. A rebuild is only recommended where the brickwork itself has deteriorated beyond economic repair.
Book Your Free Chimney Survey
Noticed cracks in your chimney mortar, loose pots, or damp patches on the chimney breast inside? Contact Countrywide Roofing & Insulation for a free no-obligation survey across England and Wales.
Call 0800 246 5145 to speak to our team directly.
Ready to book your chimney repair? Visit our chimney repair service page to see what we cover, or request a free survey today.
