Locks wear out, become outdated, or simply no longer suit your needs, whether following a lost key, a change of tenant, or a general security upgrade. Knight & Falcon Locksmith replaces and upgrades locks across London to current British Standard specifications.
A stiff or sticking key, a lock that no longer turns smoothly, or hardware that predates 2016 are all signs your locks may need attention, particularly for euro cylinder locks vulnerable to snapping.
Where appropriate, we recommend upgrading to British Standard BS3621 locks, offering anti snap, anti pick, and anti drill protection well beyond standard cylinders.
Not every lock suits every door. We assess your existing hardware and door type before recommending a replacement, rather than fitting a generic solution.
Every lock replacement and upgrade is carried out by a DBS checked, fully insured technician, with a 12 month warranty on parts and labour.
Call us for urgent locksmith assistance. We respond quickly to emergencies across London.
All work carried out by DBS checked and fully insured locksmiths. We offer a 12-month warranty on all work and no call out fee.
Find answers to commonly asked questions about our locksmith services.
Our technician will assess the lock during the visit and advise honestly on whether a repair or full replacement is the better option.
British Standard BS3621 locks include anti snap, anti pick, and anti drill features that standard cylinders typically lack.
In most cases, yes, as long as the new lock matches the existing fitting.
Most straightforward lock replacements are completed within an hour.
Yes, every replacement and upgrade comes with a 12 month warranty on parts and workmanship.
Knight & Falcon Locksmith – fast, reliable locksmith services across Deganwy, Conwy, Llandudno & London. 24/7 emergency call-outs, no call-out fee, fully insured & DBS checked. Lockouts, lock repairs, UPVC fixes & key cutting, we aim to be with you within 30 minutes.
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