Chimney Repair Cost UK 2026: Repointing, Rebuild, Flashing & Removal Prices
Most UK chimney repairs in 2026 cost between £250 and £1,500, but the spread is huge: repointing runs £400–£1,200, a full stack rebuild £1,000–£3,500, lead flashing £400–£950, a flue liner £600–£1,500 and chimney removal £900–£6,800 per floor. Scaffolding alone adds £400–£1,200 and is often the biggest line on the bill. Here is exactly what each job costs and what moves the price.
Chimney Repair Cost UK 2026: Quick Answer
In 2026 a typical UK chimney repair costs £250 to £1,500. The most common job — repointing the stack — averages around £750, while a full chimney stack rebuild runs £1,000 to £3,500 or more. Replacing lead flashing costs £400 to £950, a flexible flue liner £600 to £1,500, re-flaunching £150 to £400, and a new pot or cowl £100 to £300. Removing a chimney is the big-ticket job at £900 to £6,800 per floor once structural support and Building Control are included.
The single biggest variable is access, not the brickwork. A chimney scaffold costs £400 to £700 to erect and on small jobs often exceeds the repair itself — so bundling work pays. Expect to pay 20 to 30 per cent more in London and the South East.
Jump to: Cost by repair type · Repointing & rebuild · Flashing & lining · Removal & capping · Scaffolding & access · Get free quotes · FAQs
Chimney Repair Cost by Job Type (UK 2026)
Chimney repair is not one job but a family of jobs that range from a £150 mortar fillet to a £10,000 multi-storey breast removal. The table below shows the realistic Q2 2026 price band for each common task, with the typical figure most homeowners actually pay once labour, materials and standard access are included. Use it to sense-check any quote — a price far outside these bands deserves a question.
| Chimney repair job | Typical 2026 cost | What it covers |
|---|---|---|
| Re-flaunching (mortar cap) | £150–£400 | Renew cracked mortar bedding the pots |
| Capping off a disused flue | £150–£400 | Ventilated cap on a redundant chimney |
| Chimney pot replacement | £100–£300 per pot | New pot fitted and re-flaunched |
| Cowl fitting (anti-bird/downdraught) | £120–£280 | Supply and fit a cowl to one pot |
| Flashing repair (existing lead) | £250–£525 | Re-dress and re-point existing leadwork |
| Lead flashing replacement (4 sides) | £400–£950 | New Code 4/5 lead all round |
| Chimney repointing | £400–£1,200 | Rake out and re-point the stack |
| Flue liner installation | £600–£1,500 | Flexible/clay/pumice liner fitted |
| Partial stack rebuild | £600–£1,500 | Top courses, flaunching and pots reset |
| Full stack rebuild (above roof) | £1,000–£3,500+ | Rebuild stack to roofline, new pots/flashing |
| Chimney stack removal (above roof) | £500–£1,500 + scaffold | Take down stack, make good roof |
| Chimney breast removal (per floor) | £900–£6,800 | Structural removal + steel + making good |
Figures are Q2 2026 UK averages for labour and materials with standard access. Scaffolding (£400–£1,200) is additional on most jobs above bungalow height. London & the South East add 20–30%.
Chimney repair cost by access type
Access is the hidden cost that surprises most homeowners. The same £200 flaunching repair becomes a £700 job once a scaffold is needed. The table below shows how the all-in price for a typical mid-range repair shifts with how the trade has to reach the stack.
| Access situation | Access cost | Notes |
|---|---|---|
| Bungalow / single storey, ladder access | £0–£150 | Often no scaffold; roof ladder may suffice |
| Two-storey, stack near eaves | £400–£700 | Standalone chimney scaffold, 1–2 weeks |
| Two-storey, stack on the ridge | £600–£1,000 | Taller scaffold or crash deck across roof |
| Three storey / tall townhouse | £900–£1,800 | Full scaffold tower, longer hire |
| Restricted access (alley, mid-terrace) | £800–£2,000+ | Cherry picker hire or complex scaffold |
A cherry picker (mobile elevating platform) can be cheaper than scaffolding for a single short visit but is rarely allowed for prolonged work at height. Your roofer will advise which is safe and compliant.
Chimney Repointing & Stack Rebuild Costs
Decades of rain, frost and acidic flue gases erode the mortar joints on a chimney faster than anywhere else on the house. Repointing renews those joints; a rebuild is needed once the bricks themselves are spalling, leaning or the stack is structurally unsound. Getting the diagnosis right matters — repointing a stack that actually needs rebuilding simply wastes the scaffold cost.
How much does it cost to repoint a chimney?
| Repointing scenario | 2026 cost | Why |
|---|---|---|
| Bungalow, easy access, cement mortar | £400–£600 | Little or no scaffold needed |
| Two-storey house with scaffold | £600–£900 | Scaffold is the bulk of the cost |
| Period property, lime mortar | £700–£1,200 | Lime is dearer and slower to apply |
| Large / tall stack, full repoint | £900–£1,200+ | More joints, longer scaffold hire |
Average UK chimney repoint in 2026 is around £750. Always match the mortar to the brick — hard cement on a soft period brick causes the brick face to spall and is a common mistake.
Chimney stack rebuild cost
| Rebuild type | 2026 cost | Included |
|---|---|---|
| Partial rebuild (top courses) | £600–£1,500 | Top few brick courses, flaunching, reset pots |
| Full rebuild to roofline | £1,000–£3,500 | Stack rebuilt, new pots, flaunching, flashing |
| Tall / double stack rebuild | £3,000–£5,000+ | More brickwork, heavier scaffold, longer job |
| London & South East premium | +20–30% | Higher labour, access and parking costs |
A rebuild above the roofline is non-structural for the house but still needs safe access and weatherproof reinstatement of pots and flashing. Always ask for a fixed price including making good the roof.
Lead Flashing & Flue Liner Costs
The flashing — the lead that seals the joint between the chimney and the roof — is the most common single point of failure and the usual culprit behind a damp chimney breast. The flue liner protects the masonry from corrosive combustion gases and is mandatory for most new wood-burner and gas appliance installations. Both are jobs where cutting corners costs far more later.
Chimney flashing repair & replacement cost
| Flashing job | 2026 cost | Notes |
|---|---|---|
| Re-dress & re-point existing lead | £250 (no scaffold) | Where lead is sound but lifted/cracked |
| Replace lead on all 4 sides | £400–£950 | New Code 4/5 lead, soakers and apron |
| Full replacement with scaffold | £600–£1,000 | Most common real-world total |
| Lead supply only | £150–£200 | Plus £100–£250/day labour |
Avoid cheap "flashband" tape or a mortar-only fillet on a quote — they fail within a few winters. Code 4 or Code 5 milled lead, properly dressed and pointed, is the durable standard. A £250 repair now prevents £3,000–£8,000 of timber and plaster damage later.
Chimney liner (flue liner) installation cost
| Liner type | Installed cost | Lifespan / use |
|---|---|---|
| Flexible stainless steel (316) | £450–£700 | ~15 yrs, most wood-burners |
| Flexible stainless (904, multi-fuel) | £600–£1,000 | Smokeless/coal, longer life |
| Clay / ceramic liner | £750–£1,000 | 30–50 yrs, new-build/major works |
| Pumice liner | £850–£1,500 | Insulated, full reline of tall flue |
Supply-and-fit works out around £250 per metre. Relining must be signed off — a HETAS-registered installer can self-certify, otherwise Building Control notification is required. Extra works (new pots, flaunching, repointing) are added on top.
Chimney Removal & Capping-Off Costs
Removing a chimney is the most expensive and most heavily regulated job on this page. There is a critical distinction: taking down the stack above the roof is a roofing job, while removing the chimney breast inside the house is structural work that needs Building Control sign-off, a structural engineer, and usually a Party Wall agreement with neighbours. Capping off a disused flue is the cheap middle path that stops leaks without losing the chimney.
Chimney removal cost
| Removal type | 2026 cost | What is involved |
|---|---|---|
| Stack removal above roofline | £500–£1,500 + scaffold | Take down stack, re-tile/re-felt roof |
| Single breast, ground floor | £900–£2,000 | Easy access, gallows bracket support |
| Breast removal, per floor (with steel) | £2,000–£6,800 | Steel beam, Building Control, making good |
| Full multi-storey removal | £6,000–£10,000+ | Breast + stack on every floor |
| Building Control application | £200–£400 | Plus structural engineer’s calcs |
| Party Wall Award (per neighbour) | £600–£1,500 | Terraced/semi; allow 4–8 weeks |
Removing a chimney breast is notifiable under Building Regulations Part A (structure). Most Building Control bodies now require a steel beam rather than gallows brackets, especially in London, because of resale surveyor scrutiny. Never remove a lower breast while leaving the one above unsupported.
Re-flaunching, capping off, pots & cowls
| Job | 2026 cost | Notes |
|---|---|---|
| Re-flaunching (work only) | £150–£400 | Scaffold often costs more than the work |
| Re-flaunch all-in, two-storey | £500–£800 | Includes scaffold access |
| Cap off disused flue (single storey) | £150–£200 | Ventilated cap, easy access |
| Cap off disused flue (with scaffold) | £500–£800 | Two-storey, ventilated cap |
| New chimney pot (fitted) | £100–£300 per pot | Includes re-flaunching the pot |
| Cowl fitting (no scaffold) | £120–£170 | Anti-bird / anti-downdraught |
| Cowl fitting (with scaffold) | £190–£280 | Multi-purpose cowl higher end |
Always cap and vent a disused chimney — never seal it airtight. A sealed flue traps moisture and causes the exact internal damp staining you were trying to prevent. A hooded, ventilated C-cap is the correct solution.
Chimney Damp, Leaks & Scaffolding Explained
A damp patch on the chimney breast, brown staining on the ceiling beside it, or a musty smell in the room above the fireplace almost always traces back to one of a handful of faults at the top of the stack. The good news: the repair is usually modest. The bad news: ignored, water ingress is one of the most destructive and expensive problems a house can develop.
What causes chimney damp — and what the fix costs
| Cause of damp / leak | Typical fix cost | Tell-tale sign |
|---|---|---|
| Failed / lifted lead flashing | £250–£950 | Stain at ceiling/wall junction near stack |
| Cracked flaunching | £150–£400 | Loose pots, debris in the grate |
| Eroded / open pointing | £400–£1,200 | Crumbling joints, white salt deposits |
| Open pot on disused flue | £150–£400 | Damp only after heavy rain |
| Porous brickwork (driving rain) | £200–£600 | Wide damp patch, weather-side wall |
| Untreated for one winter | £3,000–£8,000 | Rotten timbers, blown plaster |
The contrast in that last row is the whole argument for early repair: a £250 flashing fix prevents thousands in structural and decorative damage. Have any new chimney stain investigated within weeks, not seasons.
Scaffolding & access costs
| Access method | 2026 cost | When used |
|---|---|---|
| Chimney scaffold tower (erect + 1–2 wk hire) | £400–£700 | Standard two-storey chimney access |
| Full scaffold (taller / ridge stack) | £700–£1,200 | Higher stacks, longer jobs, rebuilds |
| Cherry picker (day hire + operator) | £250–£500/day | Single short visit, clear access |
| Extra hire weeks | £50–£120/week | If the job overruns the standard hire |
Because the scaffold is so often the dominant cost, it is genuinely worth doing every chimney task in one visit — repoint, re-flaunch, replace flashing and fit a cowl together — rather than paying to scaffold the same stack twice in two years.
How to Keep Your Chimney Repair Cost Down
Chimney repairs are unavoidable on most older UK homes, but a few decisions made before you accept a quote can shave hundreds — sometimes thousands — off the final bill without cutting corners on safety or quality.
| Tip | Why it saves money |
|---|---|
| Bundle all chimney jobs into one scaffold | Avoids paying £400–£700 to scaffold the stack twice |
| Get 3 like-for-like written quotes | Chimney prices vary widely; competition pays |
| Fix flashing/flaunching early | Prevents £3,000–£8,000 of water damage |
| Cap off a flue you never use | A £150–£400 cap ends repeat leak callouts |
| Share scaffold with roof/guttering work | Split access cost across multiple trades |
| Use a HETAS installer for relining | Self-certification avoids Building Control fees |
| Insist on Code 4/5 lead, not flashband | Lasts decades; tape fails within a few winters |
The biggest single saving on almost every chimney job is timing the work to coincide with other roof-level work so the scaffold is shared. If the roof or gutters need attention too, do it all at once.
Chimney Repair Cost FAQ · UK 2026
Repointing a chimney in the UK costs £400 to £1,200 in 2026, with a typical two-storey job around £700 to £900 including scaffolding. Easy-access bungalows start near £400, while period properties needing lime mortar run £700 to £1,200 because lime is dearer and slower to apply. Scaffolding is usually the single biggest line on the bill, adding £400 to £1,200.
Rebuilding a chimney stack above the roofline costs £1,000 to £3,500 or more in 2026. A partial rebuild — replacing the top few courses of brickwork and re-setting the flaunching and pots — costs £600 to £1,500. A full rebuild down to the roofline, including new pots, flaunching, flashing and scaffolding, sits at the upper end. London and the South East run 20 to 30 per cent higher.
Repairing existing chimney flashing costs around £250 without scaffolding, while replacing the lead on all four sides costs £400 to £950. With scaffolding, a full lead flashing replacement typically totals £600 to £1,000. Code 4 or Code 5 lead is the durable standard — cheap mortar fillets and flashband tape are false economy that fail within a few winters.
Removing a chimney breast costs £900 to £2,000 for a single ground-floor removal with easy access, rising to £2,000 to £6,800 per floor once a structural steel (gallows bracket or beam), Building Control and making good are included. Removing just the stack above the roofline costs £500 to £1,500 plus scaffolding. Full multi-storey removals frequently exceed £6,000 to £10,000.
Chimney breast removal costs £2,000 to over £6,000 per floor, with full multi-storey removals reaching £10,000 or more once structural steel, permissions and making good are included. A simple ground-floor breast removal with easy access can be £900 to £2,000. Always budget for a Building Control application (£200–£400), a structural engineer’s calculations, and — in a terraced or semi-detached home — a Party Wall Award (£600–£1,500 per neighbour).
Almost all chimney work above bungalow height needs scaffolding for safe, legal access under Work at Height Regulations. A chimney scaffold tower costs £400 to £700 to erect and is typically hired for one to two weeks. On many small jobs the scaffolding costs more than the repair itself, which is why it is worth bundling several chimney tasks into one visit while the access is up.
Installing a flexible stainless-steel flue liner costs £600 to £1,000 for a typical chimney, or £450 to £1,500 across the range. Supply-and-fit works out around £250 per metre. Clay liners cost £750 to £1,000 and pumice £850 to £1,500. Any extra works the chimney needs — new pots, flaunching or repointing — are added on top.
Re-flaunching a chimney — renewing the mortar cap that beds the pots — costs £150 to £400 for the work itself. As with most chimney jobs the scaffolding to reach the stack often costs more than the flaunching, so expect £500 to £800 all-in on a two-storey house once access is included.
Capping off a disused chimney costs £150 to £200 on a single-storey property with easy access, rising to £500 to £800 once scaffolding is needed. A ventilated cap or hooded cowl is essential: sealing a flue completely without ventilation traps moisture and causes internal damp staining. Always cap and vent, never just seal.
Chimney damp is almost always caused by failed flashing, cracked flaunching, eroded pointing or a missing cap letting rain into the stack and flue. The fix is usually £250 to £1,200 depending on the cause. Left through a single winter, water ingress rots roof timbers and saturates plaster, with knock-on repairs of £3,000 to £8,000 — so early repair is far cheaper.
Yes. Removing a chimney breast is structural work governed by Building Regulations Part A, so it needs Building Control approval and a structural engineer’s calculations showing how the load above is supported, usually via gallows brackets or a steel beam. A Building Control application costs around £200 to £400. In a terraced or semi-detached home a Party Wall Award (£600 to £1,500 per neighbour) is also likely.
Yes. Chimney repair in London and the South East runs 20 to 30 per cent above the national average because of higher labour rates, congestion and parking restrictions, and tighter access. The North, Wales and parts of the Midlands tend to sit below the national average. Access difficulty, mid-terrace scaffolding and how high the stack sits above the roofline matter more than region on most individual jobs.
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Related Guides
Doing chimney work usually means a scaffold is already up — the ideal time to tackle related roof-level jobs. Explore our other UK cost guides:
- Roofing Cost UK 2026 — re-roof, repair and re-tile prices, including chimney-adjacent flashing work.
- Fascias & Soffits Cost UK 2026 — replace roofline boards while the scaffold is up.
- Find a Roofer — compare free quotes from insured, vetted local roofers and chimney specialists.
Sources & Methodology
Our 2026 chimney repair costs are compiled from live quotes supplied by insured UK roofers and chimney specialists, cross-checked against published trade cost guides and industry bodies. Prices are Q2 2026 UK averages for labour and materials; scaffolding and regional premiums (London & the South East +20–30%) are stated separately throughout. Individual quotes vary with access, stack height, masonry condition and material choice.
- National Federation of Roofing Contractors (NFRC) — member roofer pricing and best-practice flashing/leadwork standards.
- National Association of Chimney Sweeps (NACS) — flue, liner and capping guidance.
- Building Regulations Approved Document J (combustion appliances & flues) and Approved Document A (structure) — statutory requirements for liners and chimney breast removal.
- HETAS — competent-person scheme for solid-fuel flue and liner installation self-certification.
- Federation of Master Builders (FMB) — structural removal and Party Wall guidance.
- Aggregated live UK trade quotes across 519 towns, BestBuilders network, Q2 2026.
Methodology: figures reflect typical mid-market quotes from vetted, insured trades and are reviewed quarterly. They are a planning guide, not a fixed quotation — always obtain written quotes for your specific chimney. See our /editorial-standards for how we research, source and review cost data.