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01 · Ask
Lockout, change or upgrade?
Lost keys, moving in, insurance upgrade? Describe and the AI tells you what kind of locksmith and what spec.
Fit a new door lock.
Mortice, multi-point, euro cylinder or smart lock — BS 3621 or TS 007 3-star, fitted by a locksmith.
✓ Updated May 2026✓ Free quotes✓ Vetted pros
20,000+UK homeowners
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Hire a locksmith. MLA-vetted, fixed-price.
Read the brief on MLA membership, BS3621 locks and bait-and-switch quotes — then let Three local locksmiths quote.
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02 · Read the brief
Walk in informed
MLA membership, BS3621, PAS 24, anti-snap cylinders, smart lock standards. Know the protection levels.
60 seconds
03 · Compare
Compare 3 locksmith quotes
Three local locksmiths quote on the same spec — hardware, fit, warranty — so the cheapest isn't accidentally insecure.
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Top tips
Hiring a locksmith, without the regret.
Four moves that separate a smooth job from a nightmare.
MLA member — not just 'locksmith'.
Anyone can call themselves a locksmith. MLA (Master Locksmiths Association) means vetted, DBS-checked, insured. Insist on it.
Fixed pricing — beware the bait & switch.
Some 'locksmith' adverts quote £29 then charge £350 on-site. MLA members quote upfront. If the price isn't fixed before they arrive, walk.
British Standard locks for insurance.
Most home insurers require BS3621 mortice deadlocks or PAS 24 multi-points on external doors. Without these, claims can be refused.
Snap-resistant cylinders for UPVC doors.
Standard euro cylinders snap in seconds. Anti-snap / Sold Secure SS312 Diamond rated are the upgrade. £30 hardware, massive security gain.
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
Emergency lock-out (24/7)
£100–£300
Standard daytime call-out
£60–£150
UPVC cylinder replacement
£80–£200
Mortice deadlock fit
£150–£350
Smart lock install
£200–£600
Window-lock fit (per window)
£25–£80
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
Infographic · VideoThe Locksmith briefing.
Infographic
Locksmith quick-view
Video guide
Locksmith explained
Replacement door locks should be British Standard kitemarked (BS 3621 for mortice locks, TS 007 3-star for euro cylinders) — anything less can void your home insurance.
What's involved
- Survey existing lock and door — mortice depth, cylinder length, multi-point keep alignment
- Cut new mortice or swap cylinder
- Fit lock body, strike plate and check throw
- Test from inside and outside, with all keys
Typical UK costs (2026)
| Item | Cost |
|---|---|
| Euro cylinder swap (anti-snap) | £75–£140 |
| BS 3621 mortice lock fitted | £140–£240 |
| Multi-point lock mech replacement | £180–£380 |
| Smart lock supply + fit | £280–£500 |
What to check
Always insist on the lock standard mark — BS 3621 for mortice, TS 007 3-star for cylinders, or Sold Secure Diamond for premium locks. Your insurer will ask after a break-in.
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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