Showing 13 locksmiths. MLA approved companies listed first.

Capital Locksmiths

✓ MLA ApprovedPhysical PremisesCheckatrade
North London / Whetstone, Barnet, Finchley / MLA #003612
162 Oakleigh Road North, Whetstone, N20 0UG. Family run, 18 years, owner does all callouts
EmergencyLock ChangeLock RepairKey Cutting
Call directly020 8361 1400
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Homeguard Lock Service

✓ MLA ApprovedPhysical Premises
South East London / Downham, Lewisham, Catford / MLA #000764
459 Bromley Rd, Downham, BR1 4PH. Downham/Lewisham area
EmergencyLock ChangeLock RepairKey Cutting
Call directly020 8698 4349
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Alexandra Locksmiths

✓ MLA Approved
North London / Winchmore Hill, Enfield, Southgate / MLA #002809
113 Woodland Way, Winchmore Hill, N21 3PY. North London mobile
EmergencyLock ChangeLock Repair
Call directly0208 883 1555
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Assist Locks (Lady Locksmith)

✓ MLA Approved
West London / Twickenham, Richmond, Isleworth / MLA #003913
13 Crofters Close, Isleworth, TW7 7PH. Female locksmith, unique angle
EmergencyLock ChangeLock Repair
Call directly0208 819 2717
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Fairfax Locksmiths

✓ MLA Approved
East London / Romford, Dagenham, Ilford / MLA #003940
339 Pettits Lane North, Romford, RM1 4PH. Mobile, East London
EmergencyLock ChangeLock Repair
Call directly07515 313 738
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JC Locksmiths

✓ MLA Approved
South East London / Bromley, Beckenham / MLA #003895
50 Nichol Lane, Bromley, BR1 4DE. Bromley area
EmergencyLock ChangeLock Repair
Call directly07849 191 413
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Lardner Locksmiths

✓ MLA Approved
South London / Croydon, South Norwood / MLA #003896
8 Woodside Way, Croydon, CR0 7AT. Mobile, Croydon area
EmergencyLock ChangeLock Repair
Call directly07533 253 947
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Lockmaster1 Ltd

✓ MLA Approved
South East London / Blackheath, Greenwich, Lewisham / MLA #003657
28 Zangwill Road, Blackheath, SE3 8EU. Blackheath based
EmergencyLock ChangeLock Repair
Call directly07908 959 198
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Regent Locksmith

✓ MLA Approved
South East London / Bromley, Kent borders / MLA #003934
53 Roundtable Road, Bromley, BR1 5LQ. Bromley area
EmergencyLock ChangeLock Repair
Call directly07588 725 103
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Woodside Locksmiths Ltd

✓ MLA Approved
North London / North Finchley, Woodside Park / MLA #003241
6 Barham Court, Woodside Park, N12 7BT. Mobile, North Finchley
EmergencyLock ChangeLock Repair
Call directly07957 734 831
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Certified Locksmith

Checkatrade
North London / M25, Hertfordshire
North/East London. 30+ years experience, Princes Trust alumni
EmergencyLock ChangeUPVCLock Repair
Contact viaWebsite

Mikey Locks Ltd

London Wide / All boroughs
London. 30 min response target
EmergencyLock ChangeLock RepairBurglary Repair
Contact viaWebsite
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Quality Locksmiths

Checkatrade
West London / Richmond, Kensington, Chelsea, Westminster
Twickenham. Serving London since 2015
EmergencyLock ChangeLock RepairSecurity Upgrade
Contact viaWebsite

About Lock Repair Locksmith Services

Not every lock problem requires a full replacement. Stiff mechanisms, misaligned doors, worn cylinders, and faulty UPVC multipoint locks can often be repaired at a fraction of the cost of fitting new hardware. A skilled locksmith will diagnose the issue and recommend the most cost effective solution rather than defaulting to a full replacement.

UPVC door lock repairs are one of the most common callouts across London. The multipoint locking mechanisms used in UPVC doors have moving parts that wear over time, and the gearbox (the central mechanism that drives the locking points) is a frequent failure point. A good locksmith can replace the gearbox without changing the entire door furniture.

Mortice lock repairs on wooden doors are also common, particularly in older London properties where the original Victorian or Edwardian locks may be showing their age. In many cases, the mechanism can be serviced and the existing keys retained.

Typical lock repair pricing in London ranges from £89 to £162 depending on the complexity of the repair and whether parts need ordering.

Frequently Asked Questions

Lock repair pricing typically ranges from £89 to £162 depending on the type of lock and the nature of the repair. UPVC gearbox replacements may cost more if the mechanism needs to be ordered. Simple adjustments and lubrication tend to be at the lower end.

In most cases, yes. A stiff lock is often caused by a worn cylinder, lack of lubrication, or a misaligned door. A locksmith can diagnose the specific cause and resolve it. Sometimes a simple graphite lubrication is all that is needed.

Usually yes. The most common cause is a failed gearbox (the central locking mechanism). A locksmith can replace the gearbox while keeping the existing handle and cylinders, which is significantly cheaper than replacing the entire mechanism.

Repair is almost always cheaper if the lock mechanism is fundamentally sound. A repair might cost £80 to £120, while a full replacement could be £150 to £250. However, if the lock is very old or has been previously forced, replacement may be more sensible for long term security.

Yes. Key extraction is a standard service. A locksmith uses specialist extraction tools to remove the broken key fragment without damaging the lock. In most cases the lock can continue to be used with a new key cut to the same pattern.

Yes. Window lock repairs and replacements are offered by most locksmiths listed here. This includes UPVC window locks, sash window locks, and casement window locks. Window lock repairs typically cost between £82 and £144.

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