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Crumbling joints high up — repointed with weather-resistant mortar, with full scaffold.
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Hiring a bricklayer, without the regret.
Four moves that separate a smooth job from a nightmare.
Wrong mortar
— cement on soft heritage brick causes the brick to spall.
Poor weathering
— joints not shaped to shed water.
Inadequate flashing
— overlooked; water gets in.
Cracking later
— Wrong mortar strength.
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
Scaffolding (chimney height)Often largest single cost
£400–£1.2k
Cement repointing (per m²)Standard modern
£50–£110/m²
Lime repointing (per m²)Heritage / soft brick
£80–£180/m²
Flashings check & refreshIf needed
£200–£800
Average chimney repoint4–8 m² + scaffold
£800–£2k
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
InfographicThe Bricklayer briefing.
Infographic
Bricklayer quick-view
Chimneys weather faster than any other part of a UK house — fully exposed, north-facing sides barely dry, and constant freeze-thaw cycles. Repointing every 30–50 years is normal; failure to repoint leads to bricks loosening, flashings failing, and water ingress into the house below. This guide covers what chimney repointing costs in 2026, the lime vs cement question, and how to choose the right specialist.
Repointing on a chimney is largely scaffolding cost plus 2–3 days bricklayer time. Plan both together.
What Does the Work Involve?
- Inspection to confirm scope and identify any structural issues.
- Scaffold erection (usually full ridge-height access).
- Raking out old mortar to consistent depth (12–25 mm).
- Cleaning brick faces.
- Mixing appropriate mortar (lime for heritage, cement for modern).
- Repointing all joints, with weathered finish to shed water.
- Flashing check and refresh if needed.
- Curing under sheet for 7 days if cement mortar.
Typical Costs
| Item | Low £ | High £ | Notes |
|---|---|---|---|
| Scaffolding (chimney height) | 400 | 1,200 | Often largest single cost |
| Cement repointing (per m²) | 50 | 110 | Standard modern |
| Lime repointing (per m²) | 80 | 180 | Heritage / soft brick |
| Flashings check & refresh | 200 | 800 | If needed |
| Average chimney repoint | 800 | 2,000 | 4–8 m² + scaffold |
Premium for lime mortar partially because it's harder to work and partly because heritage premiums exist.
How Long Does It Take?
- Scaffold erection: 1 day.
- Repointing work: 2–3 days for average chimney.
- Curing: 7 days under sheet (cement); longer for lime.
- Scaffold removal: ½ day.
DIY or Professional?
Specialist work only — working at height + skilled raking out + proper mortar mixing. The wrong mortar (too strong) destroys soft historic bricks.
Choosing the Right Tradesperson
- Confirm experience with chimney work specifically.
- For heritage properties, find someone with lime mortar experience.
- Insurance and working-at-height certifications.
- Photos of past chimney jobs.
UK Regulations
- Listed properties — consent required.
- Working at Height Regulations apply.
- HETAS / Building Regs for any flue-related work.
Common Problems
- Wrong mortar — cement on soft heritage brick causes the brick to spall.
- Poor weathering — joints not shaped to shed water.
- Inadequate flashing — overlooked; water gets in.
- Cracking later — Wrong mortar strength.
- Scaffold theft — site security on residential work.
Frequently Asked Questions
How often does a chimney need repointing?
Cement mortar 30–50 years; lime mortar 50–100 years. UK weather is the main factor.
Lime or cement — which mortar?
Lime for pre-1919 houses, soft hand-made bricks, and listed properties. Cement for post-1919, hard machine-made bricks.
Why is scaffolding so expensive?
Chimneys are 4–5 storeys high. Scaffolding to that height is significant — typically £400–£1,200 for residential.
Should I repoint before the chimney is loose?
Yes — prevention is much cheaper than a rebuild. If mortar is sandy or missing, repoint.
Can the repointing be done from the ground?
No — chimneys require scaffold or mast access. Reaching from ground is dangerous and produces poor work.
Does it have to dry between rain?
Cement needs 24-hour rain-free curing. Lime needs longer. Plan around forecasts.
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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