Lockout, change or upgrade?
Lost keys, moving in, insurance upgrade? Describe and the AI tells you what kind of locksmith and what spec.
Emergency lockouts, lock changes after a move and security upgrades — 24-hr cover, fixed call-out fees.
Read the brief on MLA membership, BS3621 locks and bait-and-switch quotes — then let Three local locksmiths quote.
Lost keys, moving in, insurance upgrade? Describe and the AI tells you what kind of locksmith and what spec.
MLA membership, BS3621, PAS 24, anti-snap cylinders, smart lock standards. Know the protection levels.
Three local locksmiths quote on the same spec — hardware, fit, warranty — so the cheapest isn't accidentally insecure.
Ready when you are
Enter your postcode and get free quotes from local pros.
Four moves that separate a smooth job from a nightmare.
Anyone can call themselves a locksmith. MLA (Master Locksmiths Association) means vetted, DBS-checked, insured. Insist on it.
Some 'locksmith' adverts quote £29 then charge £350 on-site. MLA members quote upfront. If the price isn't fixed before they arrive, walk.
Most home insurers require BS3621 mortice deadlocks or PAS 24 multi-points on external doors. Without these, claims can be refused.
Standard euro cylinders snap in seconds. Anti-snap / Sold Secure SS312 Diamond rated are the upgrade. £30 hardware, massive security gain.
Indicative UK ranges and what affects price.
By job type
Quote spread is typically ± 18% — always get 3 quotes.
Visual breakdown of costs, timelines and the questions you should be asking.
Locksmith quick-view

Locksmith explained
Everything you need to know before hiring a locksmith.
A professional locksmith is your first line of defence when it comes to home security. Beyond simply helping you back into your house after a lockout, they are highly skilled technicians capable of diagnosing complex mechanical failures in doors and windows. From traditional timber door locks to modern digital security systems, a locksmith ensures your property remains both accessible to you and impenetrable to intruders.
UK homeowners typically call upon locksmiths for three reasons: emergency access, essential repairs, or proactive security upgrades. Whether you have snapped a key in the barrel or have recently moved into a new home and need the locks changed for peace of mind, a qualified professional provides the expertise needed to keep your home insurance valid and your family safe.
In the UK, locksmiths often specialise in different areas, such as residential, commercial, or automotive. For domestic work, they handle everything from simple key cutting to the installation of high-security "anti-snap" cylinders and multi-point locking systems on UPVC doors.
While DIY lock replacement might seem straightforward, it carries significant risks. In the UK, most home insurance providers specify that locks must meet British Standard BS3621; installing the wrong hardware can lead to claims being rejected in the event of a burglary. A professional ensures that every component is fitted to the exact millimetre, preventing the "snagging" that eventually leads to mechanical failure.
Furthermore, modern UPVC and composite doors rely on complex multi-point locking mechanisms. Attempting to force these or using the wrong replacement parts can permanently warp the door, leading to a much higher replacement cost. Unlike many trades, there is currently no government-mandated licensing for locksmiths in the UK, which makes it vital to hire someone vetted by a recognised body like the Master Locksmiths Association (MLA).
| Service | Low £ | High £ | Notes |
|---|---|---|---|
| Standard Call-out (Daytime) | £70 | £100 | Labour only; excludes parts. |
| Emergency Call-out (Night/Weekend) | £120 | £200 | Premium for out-of-hours service. |
| Standard Euro Cylinder Change | £80 | £140 | Includes basic anti-snap lock. |
| Mortice Lock Installation (BS3621) | £110 | £190 | Required for most timber front doors. |
| UPVC Gearbox/Mechanism Repair | £150 | £350 | Varies by brand and complexity. |
| Smart Lock Installation | £150 | £450 | Depends on hardware and door prep. |
Pricing is influenced by your location (London and the SE are typically more expensive), the time of day, and the security grade of the hardware chosen. Always ask if the quoted price includes VAT and the cost of any replacement keys.
In most cases, a professional can open a standard door in 10 to 30 minutes. High-security locks or failed internal mechanisms may take longer, especially if non-destructive methods require precision picking.
A qualified locksmith will always aim for non-destructive entry. While they may need to drill the lock cylinder as a last resort, they should never cause damage to the actual door or the surrounding frame.
Lock snapping is a common burglary method used on UPVC doors. Anti-snap cylinders are designed to break in a specific way that keeps the central mechanism secure; they are highly recommended for all modern external doors.
Yes, this is highly recommended. You have no way of knowing how many spare keys were given to neighbours, cleaners, or tradespeople by the previous owners, which can pose a significant security risk.
Describe the job in plain English. The AI asks a few smart questions, then tells you whether a locksmith is the right call, what it should cost, and what to ask before they start.
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