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Repair your chimney cap & flaunching.
Cracked flaunching or wonky chimney pot — repointed, flaunched and pot re-seated with scaffold.
✓ Updated May 2026✓ Free quotes✓ Vetted pros
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Costs, timelines, pitfalls and the right questions to ask before any bricklayer starts on brick Chimney Cap & Flaunching — Repair UK.
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Hiring a bricklayer, without the regret.
Four moves that separate a smooth job from a nightmare.
Cap cracked but not noticed
— water entering invisibly for years.
Wrong slope
— water pools instead of running off.
Cement too rich
— cracks instead of moving with chimney.
Pots refitted loose
— wind moves them; eventual fall.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and what affects price.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
Simple cap repair (1 pot)Inc. scaffold
£400–£900
Cap + flashing repairStandard scope
£600–£1.5k
Cap + pot replacementIf old pot damaged
£800–£2k
Full cap rebuild + new flashingsComprehensive repair
£1.2k–£2.5k
Premium replacement (heritage pots)Specialist pots, lead work
£1.5k–£4k
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
InfographicThe Bricklayer briefing.
Infographic
Bricklayer quick-view
Chimney capping and flaunching is the cement detail at the top of a chimney — surrounding the pots and shedding water away from the brickwork. It's the first point where water enters when failing, and the easiest part of the chimney to inspect. This guide covers what cap and flaunching repair costs in 2026, the install detail, and how to find a specialist.
Most chimney leaks start at the cap. Replacing the cap is cheaper than the full chimney rebuild that follows neglect.
What Does the Work Involve?
- Scaffold or mast access to chimney.
- Removal of old cement flaunching.
- Pot removal if needed.
- New cement mortar capping around pots — sloped to shed water.
- Pots refitted on new bed.
- Optional bird/squirrel guards.
- Lead flashings checked and refreshed.
Typical Costs
| Scope | Low £ | High £ | Notes |
|---|---|---|---|
| Simple cap repair (1 pot) | 400 | 900 | Inc. scaffold |
| Cap + flashing repair | 600 | 1,500 | Standard scope |
| Cap + pot replacement | 800 | 2,000 | If old pot damaged |
| Full cap rebuild + new flashings | 1,200 | 2,500 | Comprehensive repair |
| Premium replacement (heritage pots) | 1,500 | 4,000 | Specialist pots, lead work |
How Long Does It Take?
- Simple cap repair: 1–2 days.
- Cap + flashing: 2–3 days.
- Premium heritage: 3–5 days.
- Plus scaffold erection/removal time.
DIY or Professional?
Specialist only — working at height with cement, lead work, and structural detail. Cost of falling exceeds any DIY savings.
Choosing the Right Tradesperson
- Roofer or specialist chimney company.
- Working-at-height certification.
- Insurance for high-working.
- Look at completed cap repair jobs.
- Bird/squirrel guard options.
UK Regulations
- Working at Height Regulations 2005.
- Listed properties: consent for cap replacement.
- HETAS certification if relining flue at same time.
Common Problems
- Cap cracked but not noticed — water entering invisibly for years.
- Wrong slope — water pools instead of running off.
- Cement too rich — cracks instead of moving with chimney.
- Pots refitted loose — wind moves them; eventual fall.
- Flashings overlooked — junction with roof leaks separately.
Frequently Asked Questions
How often should I check my chimney cap?
Annual inspection ideally. Drone photography increasingly affordable as alternative to scaffolding inspection.
What's the difference between cap and flaunching?
Same thing — cement around the pots and shedding water. "Flaunching" is the proper term; "cap" is colloquial.
How long does a new cap last?
20–40 years with quality cement and proper slope.
Should I add bird guards?
Yes for any chimney near trees or in urban areas — birds nest in pots, eventually causing blockages.
Do I need to remove the pots?
Usually yes — to do a proper job. Pots refit on new mortar bed.
Is this work covered by insurance?
Storm damage may be. Gradual wear typically not. Check policy.
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
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