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Repair spalling brick.
Brick face popping off — cut out and replace, or apply a sympathetic colour-match repair.
✓ Updated May 2026✓ Free quotes✓ Vetted pros
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Top tips
Hiring a bricklayer, without the regret.
Four moves that separate a smooth job from a nightmare.
Not fixing underlying cause
— spalling continues after repair.
Wrong matching brick
— visible repair, accelerates value loss.
Cement filler on soft brick
— mismatch in expansion causes more cracking.
Inadequate access
— chimney repairs need scaffolding.
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
Single brick replacementInc. labour + matching brick
£50–£150
Premium heritage brick replacementReclaimed + skilled install
£120–£250
Brick rotation (single)If sound rear face
£40–£120
Surface filler repairCosmetic only
£15–£50
Water-repellent coating (per m²)Preventive treatment
£15–£40/m²
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Quote spread is typically ± 18% — always get 3 quotes.
At a glance
InfographicThe Bricklayer briefing.
Infographic
Bricklayer quick-view
Spalling — when brick faces crack, flake, or lose chunks — is one of the most common heritage brickwork issues. It's caused by freeze-thaw damage to bricks that have absorbed water. Once spalling starts, it accelerates. This guide covers what causes spalling, the repair options, and what fixing it actually costs in 2026.
Address spalling promptly — exposed brick core absorbs water faster, accelerating further damage.
Causes
- Freeze-thaw damage on water-saturated brick.
- Cement mortar on soft brick (mortar holds water, brick suffers).
- Defective DPC allowing rising damp.
- Chimney and wall tops without proper capping.
- Poorly weathered mortar joints retaining water.
Repair Options
- Brick replacement: cut out damaged brick, replace with matching new/reclaimed.
- Brick rotation: rotate brick 180° to show sound rear face (Victorian repair technique).
- Brick repair filler: epoxy filler tinted to match — for shallow spalling.
- Surface treatment: water-repellent coatings to slow further damage.
Typical Costs
| Repair | Low £/brick | High £/brick | Notes |
|---|---|---|---|
| Single brick replacement | 50 | 150 | Inc. labour + matching brick |
| Premium heritage brick replacement | 120 | 250 | Reclaimed + skilled install |
| Brick rotation (single) | 40 | 120 | If sound rear face |
| Surface filler repair | 15 | 50 | Cosmetic only |
| Water-repellent coating (per m²) | 15 | 40 | Preventive treatment |
How Long Does It Take?
- Single brick replacement: 1–2 hours.
- 10 brick replacements: 1 day.
- Full façade spalling repair: 1–3 weeks depending on count.
DIY or Professional?
Single brick replacement is achievable for confident DIYers — but matching the brick and mortar is harder than the cutting. For visible work, professional. For repointing combined with spalling repair, definitely professional.
Choosing the Right Tradesperson
- Heritage repair experience.
- Sourcing matching bricks.
- Lime mortar for compatible soft brick.
- Address underlying cause (capping, repointing, DPC).
UK Regulations
- Listed properties: consent for brick replacement.
- Conservation areas may specify matching.
Common Problems
- Not fixing underlying cause — spalling continues after repair.
- Wrong matching brick — visible repair, accelerates value loss.
- Cement filler on soft brick — mismatch in expansion causes more cracking.
- Inadequate access — chimney repairs need scaffolding.
Frequently Asked Questions
Why are my bricks spalling?
Usually freeze-thaw — water gets into the brick, freezes, expands, cracks the face. Address why water is getting in.
Can I just leave it?
No — spalling accelerates. Exposed brick core absorbs more water, more freeze-thaw. Fix early.
How do I know when to replace vs filler?
Filler for shallow cosmetic damage (under 5 mm). Replacement for structural or deep damage.
Will water-repellent coating prevent spalling?
Yes if applied before spalling starts. Once spalled, fix the bricks first, then consider treatment.
Why is my heritage brick spalling more than modern next to it?
Soft heritage brick absorbs water more than hard modern brick — and is more susceptible to freeze damage.
Will my insurance cover this?
Gradual deterioration usually not. Storm damage may be. Check policy wording.
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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