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Soldier, segmental or true semicircular — formwork, templating and bricklaying for door and window arches.
✓ Updated May 2026✓ Free quotes✓ Vetted pros
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Hiring a bricklayer, without the regret.
Four moves that separate a smooth job from a nightmare.
Wrong arch geometry
— looks "off" even if structurally sound.
Inadequate centring
— arch sags before mortar cures.
Wrong brick choice
— non-matching with rest of building.
Failure to repoint when needed
— water enters keystone area.
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
Segmental arch (single opening)Standard sash window
£400–£900
Semicircular archLarger opening
£500–£1.2k
Soldier arch (flat)Simpler construction
£250–£600
Gauged arch (heritage)Skilled work, rubbing bricks
£800–£2.5k
Tudor arch (heritage)Complex geometry
£900–£2.8k
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
InfographicThe Bricklayer briefing.
Infographic
Bricklayer quick-view
Brick arches over windows and doors are one of the most visually striking features of UK architecture — from rough segmental arches on Georgian terraces to elaborate gauged arches on Victorian banks. This guide covers what brick arches cost in 2026, the types available, and the install detail that prevents settlement.
Modern construction often replaces arches with steel lintels (cheaper, simpler). Traditional and heritage work demands proper bricks arches.
Types of Brick Arch
- Segmental arch: gentle curve, common over windows in 18-19th century work.
- Semicircular arch: half-circle, classical Roman/Norman.
- Gauged arch: precise cut bricks (rubbing brick), refined finish.
- Soldier arch: bricks on edge in straight line, "flat arch".
- Tudor arch: flattened pointed style, heritage work.
What Does the Work Involve?
- Calculation of arch geometry and load.
- Temporary timber centring (former) supporting bricks during construction.
- Voussoir bricks (wedge-shaped or cut) laid to curve.
- Keystone brick at top (last brick locks the arch).
- Mortar joints tapered to follow curve.
- Centring removed after mortar cures.
Typical Costs
| Type | Low £ | High £ | Notes |
|---|---|---|---|
| Segmental arch (single opening) | 400 | 900 | Standard sash window |
| Semicircular arch | 500 | 1,200 | Larger opening |
| Soldier arch (flat) | 250 | 600 | Simpler construction |
| Gauged arch (heritage) | 800 | 2,500 | Skilled work, rubbing bricks |
| Tudor arch (heritage) | 900 | 2,800 | Complex geometry |
How Long Does It Take?
- Segmental arch: 1–2 days.
- Gauged arch: 2–4 days (slow skilled work).
- Plus 7-day cure before removing centring.
DIY or Professional?
Specialist work. The geometry, voussoir cutting, and centring removal all need experience. Hire a heritage-experienced bricklayer.
Choosing the Right Tradesperson
- Heritage brickwork experience essential.
- Photos of past arch work.
- Discuss arch type, brick choice, mortar.
- For gauged work, look for specialist.
UK Regulations
- Building Regs apply for new structural arches.
- Listed properties: matching original arch type essential.
Common Problems
- Wrong arch geometry — looks "off" even if structurally sound.
- Inadequate centring — arch sags before mortar cures.
- Premature centring removal — arch collapses.
- Wrong brick choice — non-matching with rest of building.
- Failure to repoint when needed — water enters keystone area.
Frequently Asked Questions
What's a gauged arch?
Brick arch made with precision-cut "rubbing bricks" — soft bricks cut by hand to exact wedge shape. The finest UK brick arch construction.
Are brick arches structural?
Yes — they carry load above the opening. Modern alternative is steel/concrete lintel.
How long do brick arches last?
100–300+ years with proper construction. Many Georgian arches still standing.
What's a keystone?
The wedge-shaped brick or stone at the top of the arch — installed last, locks the structure together.
Can I have a curved brick arch over a new opening?
Yes — but expensive vs steel lintel. Choose for heritage matching or appearance.
Will a brick arch settle?
Slight settlement when centring removed — should be designed in. Not noticeable.
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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