Chimney Repair Cost UK 2026: Repointing, Rebuild, Sweep + Removal by Job
UK chimney work in 2026 costs £250-600 for repointing, £800-2,500 for a chimney rebuild, £60-120 for a sweep, and £500-1,500 for chimney removal. This guide uses verified Q2 2026 pricing from roofing + chimney specialists across 519 UK towns — by job type, access method and chimney condition.
UK Chimney Cost 2026: 30-Second Answer
UK chimney work in Q2 2026 covers several jobs: repointing (£250-600) — renewing the mortar joints; rebuild (£800-2,500) — taking down + rebuilding the stack above roofline; flaunching + pot re-bed (£200-500); lead flashing renewal (£300-800); chimney sweep (£60-120); and full chimney removal (£500-1,500 above roof, £1,500-4,000 full removal incl. breast).
The biggest cost driver is access — most chimney work needs scaffolding (£600-1,200) or a tower, which often costs more than the repair itself. A flue liner for a wood burner is £40-90/m supply + fit (£600-1,500 for a typical 2-storey chimney).
Bottom line: an annual chimney sweep (£60-120) for any working fireplace is a legal + insurance requirement and prevents £1,000s in damp + fire damage. Get a chimney inspected before buying a period property — repointing + flashing are common hidden costs.
UK Chimney Cost by Job Type 2026
| Job | Typical Cost UK 2026 | Time | Notes |
|---|---|---|---|
| Chimney Sweep (HETAS/NACS) | £60-120 | 30-60 mins | Annual for wood, twice-yearly for open coal fire |
| Chimney Repointing | £250-600 | 1 day | Renew weathered mortar joints, lime mortar for period |
| Flaunching + Pot Re-bed | £200-500 | Half-day | Renew the mortar 'cap' that holds the pots |
| Lead Flashing Renewal | £300-800 | 1 day | Renew lead where chimney meets roof — common leak point |
| Chimney Rebuild (above roofline) | £800-2,500 | 1-3 days | Take down + rebuild stack, new pots + flaunching |
| Flue Liner (wood burner) | £40-90/m (£600-1,500 typical) | 1 day | Stainless flexible liner + HETAS cert for stove |
| Chimney Removal (above roof) | £500-1,500 | 1-2 days | Remove stack, make good roof, ridge tiles |
| Full Chimney Removal (incl. breast) | £1,500-4,000 | 3-7 days | Remove breast through floors — needs structural support + Building Regs |
Access cost extra: scaffolding £600-1,200 for full chimney access, tower £80-150/day. Most chimney work requires scaffolding. London + South-East +20-30%. Full breast removal is Building Regs notifiable + needs a structural engineer (£300-600).
Common UK Chimney Problems + Repair Costs 2026
| Symptom | Likely Cause | Fix + Cost |
|---|---|---|
| Damp patch on chimney breast (inside) | Failed flashing or repointing | Lead flashing £300-800 / repoint £250-600 |
| Leaning or cracked stack | Sulphate attack on mortar, frost damage | Rebuild above roofline £800-2,500 |
| Pots loose or fallen | Cracked flaunching (mortar cap) | Re-flaunch + re-bed pots £200-500 |
| Smoke coming back into room | Blockage, bird nest, or downdraught | Sweep £60-120 + anti-downdraught cowl £80-250 |
| Tar staining + smell (wood burner) | No liner, condensing flue gases | Install stainless flue liner £600-1,500 |
| Unused chimney letting in cold + damp | Open uncapped flue | Cap + vent (allow airflow) £100-300 or remove £500-1,500 |
Always ventilate a capped chimney — sealing it completely traps moisture + causes damp. A capped chimney needs a passive vent (airbrick) at the bottom.
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UK Chimney Cost FAQ · 2026
UK chimney repair Q2 2026: repointing £250-600, flaunching + pot re-bed £200-500, lead flashing renewal £300-800, rebuild above roofline £800-2,500, flue liner £600-1,500. Chimney sweep £60-120. Removal £500-1,500 (above roof) or £1,500-4,000 (full incl. breast). Scaffolding access £600-1,200 extra. London/SE +20-30%.
A HETAS or NACS-registered chimney sweep costs £60-120 in the UK in 2026 (takes 30-60 minutes). Wood-burning + multifuel flues should be swept annually; open coal fires twice yearly. The sweep issues a certificate required by most home insurance policies + essential after a wood burner install. Smoke-back, tar smell or birds nesting are signs you need a sweep urgently.
Removing the chimney stack above the roofline costs £500-1,500 in 2026 (remove brickwork, make good roof + ridge tiles). Full chimney removal including the breast through the floors costs £1,500-4,000 — this is Building Regs notifiable, needs a structural engineer (£300-600) to design support (gallows brackets or steel), and takes 3-7 days. Removing the breast frees up floor space but you keep the responsibility for supporting the neighbour's shared stack in a party wall.
A stainless steel flexible flue liner costs £40-90/m supply + fit in 2026 — for a typical 2-storey chimney (6-8m) that's £600-1,500 including the HETAS installation certificate. The liner is essential for a wood burner or stove install: it protects the masonry from condensing acidic flue gases, improves the draw, and is required for the install to be Building Regs compliant + insurable. 904-grade liner (for wood + coal) costs more than 316-grade (wood only).
For most chimney work, yes. Repointing, rebuilds, flashing + pot work all require safe working access at roof height, which means scaffolding (£600-1,200 for a chimney) or a tower (£80-150/day). The access cost often exceeds the repair cost — which is why it's economical to do all outstanding chimney + roof work in one visit while the scaffold is up. Chimney sweeps + cowl fitting can usually be done from inside or with a roof ladder, avoiding scaffold.
If the chimney is sound, capping + venting (£100-300) is far cheaper than removal and retains the option to reinstate a fire later (a working fireplace adds 1-5% to property value). Remove only if: the stack is dangerous/leaning, you need the floor space from the breast, or the chimney causes recurring damp. Removing the stack above the roofline (£500-1,500) is straightforward; removing the full breast (£1,500-4,000) is major structural work. Never fully seal a chimney without a vent — it traps damp.
Where Our 2026 Chimney Data Comes From
- NFRC (National Federation of Roofing Contractors) Q2 2026
- HETAS — wood burner + flue liner standards
- NACS (National Association of Chimney Sweeps) — sweep pricing
- Building Regs Part J — combustion + flue requirements
- 519-town chimney + roofing specialist quote dataset Q2 2026
- RICS BCIS Q2 2026 labour + materials index
- Access cost modelling (scaffold / tower / roof ladder)
All cost ranges reflect quotes from NFRC + HETAS-registered chimney specialists in Q2 2026 across 519 UK towns. Editorial standards: /editorial-standards.