Door hinge and lock replacement

Replacing door hinges and locks in the UK typically costs £60–£250 depending on door type and lock complexity. Internal door hinge replacement runs £40-£90; external door lock changes are £80-£200; high-security locks (anti-snap, anti-bump) and multi-point locking systems can run £150-£400 fitted. Most jobs take 30 minutes to 2 hours.

The two reasons people most commonly book this work: hinges have failed (sagging door, won't close) or security concerns (lost keys, after a break-in attempt, moving in to a new home). Both are routine work for any locksmith or carpenter.

Typical UK costs

Hinge problems and fixes

• Sagging door (hinge dropping) — usually loose hinge screws into stripped wood, or worn pin/knuckle. Replace with longer screws, fit T-nuts, or replace the hinge entirely.
• Door catches frame at top corner — top hinge dropping. Tighten screws, or replace.
• Door catches at bottom corner — bottom hinge dropping or door swelling. Plane lightly, or replace bottom hinge.
• Squeaking — usually just lubrication. WD-40 or graphite powder. Replacement only needed if pin is visibly worn.
• Hinge damage from forced entry — replace hinges + repair frame splintering. Often time to upgrade to security hinges.

Lock types and what's appropriate

• Yale-style nightlatch — surface-mounted, on the latch side. Common UK front-door fitting. Replace if key is lost or worn.
• Mortice lock (5-lever, BS 3621) — set into the door edge, deadbolt operation. Insurance-approved standard for external timber doors.
• UPVC multi-point — multiple locking points (typically 3-5) along the door height. Standard for modern UPVC and composite doors.
• Euro cylinder — the cylinder itself is what's replaced (rather than the whole lock). Anti-snap, anti-bump, anti-pick variants matter for security.
• Smart locks — fitted to existing or new doors, electronic operation via keypad / phone / fingerprint. £120-£500 plus fitting.

Security upgrades worth considering

• Anti-snap cylinders — prevent the most common UPVC door attack (lock snapping). Typically £30-£70 to upgrade per door.
• Sash-jammer / hinge-side bolts — prevent doors being kicked open. £15-£35 each.
• Door chain or limiter — for answering the door without fully opening. £15-£40 fitted.
• BS 3621 mortice deadlock on timber external doors — required by most UK insurance policies; absent or non-compliant locks may invalidate cover.
• Letterbox restrictor — prevents key fishing through letterbox. £15-£40.

Things people often miss

• Insurance compliance — most UK home insurance policies require specific lock standards (BS 3621 for timber, anti-snap cylinders for UPVC). Check policy before specifying upgrades.
• Re-keying after moving in — when you buy a property, the previous owners' contractors, builders, cleaners may all have had keys. Re-keying or full lock change is a small price for security.
• Smart lock backup — most smart locks have a physical key backup. Make sure you keep this somewhere accessible — battery or system failure shouldn't lock you out.
• Sash-side fittings on UPVC — half of UPVC door security is in the multi-point lock; the other half is in the hinges and the way the door fits the frame. Bent or worn UPVC frames undermine even premium locks.
• Lost key vs broken key — broken keys stuck in a lock often need professional extraction without damaging the cylinder. £40-£90 callout typical.
• Period homes — listed buildings often need period-appropriate hinges and locks (Suffolk latches, butt hinges in cast iron, etc.). Specialist suppliers like Willow & Stone or Croft Architectural carry these.

Frequently asked questions

How long does lock replacement take?

Like-for-like cylinder swap: 15-30 minutes. Full mortice lock replacement: 45-90 minutes. UPVC multi-point: 60-120 minutes. Smart lock with app pairing: 90-150 minutes including phone setup.

Should I replace the lock or just the cylinder?

For UPVC and composite doors with euro cylinders, just the cylinder is usually sufficient and much cheaper. Full lock replacement only needed if the lock body itself is failing. For timber doors with mortice locks, the lock body and cylinder are often integrated.

Do I need anti-snap cylinders?

For UPVC or composite external doors — strongly recommended. Lock snapping is the most common UK burglar entry method on these doors. Anti-snap cylinders typically meet TS 007 3-star or SS 312 Diamond standard. £30-£70 upgrade well worth it.

Can a locksmith open my door without a key?

Almost always yes — most UK locksmiths can pick or bypass standard locks without damage. £80-£180 typical for a non-destructive lockout callout. If destruction is needed (some high-security locks), the lock or cylinder will need replacing afterwards.

How much does it cost to re-key all my house locks?

For a typical UK 3-bed home (front door, back door, possibly French/patio doors): £200-£500 depending on lock types and number of doors. Worth doing on house purchase, after lost keys, or after disputed tenancy.

Should I fit a smart lock?

Smart locks (Yale Conexis, August Smart Lock, Yale Linus) work well for most modern doors and offer convenience benefits. Drawbacks: battery dependence, software updates, and some insurers require physical key backup. Read insurance policy before fitting.

Want a local pro to handle this? A locksmith or experienced carpenter handles hinge and lock replacement quickly. For security-sensitive work (post break-in, after losing keys), a Master Locksmiths Association (MLA) certified locksmith provides assurance of quality and ethics.