Lock Change & Replacement
Whether you have just moved into a flat on Beckenham High Street, been handed a property by a letting agent in the BR3 area, or simply want to upgrade tired old hardware on your front door, a lock change is one of the most straightforward ways to take back control of who holds a working key to your home. Beckenham Locksmith is a fully insured, mobile lock change service operating across Beckenham and the surrounding neighbourhoods — we come to you, day or night, with the right parts already on board.
Open 24 hours, 7 days a week · Fully insured

“Our trained technicians carry a broad range of cylinders and lock sets to suit timber doors with traditional 5-lever mortice deadlocks, uPVC and composite doors fitted with euro cylinders, and communal entrances in blocks of flats. We confirm an exact up-front price on the phone before anyone sets off, so there are no surprises when the job is done.
What we do
Available 24/7
Day, night, weekends and bank holidays — a real local locksmith answers and sends a fully-stocked van.
We come straight away
Based in Beckenham, we send a locksmith straight away — we're usually with you in about 30 minutes.
Fully insured
Vetted locksmiths, a clear price on the phone, and no surprise add-ons when we arrive.
Damage-free entry
We pick and bypass locks the right way, so most lockouts are solved without drilling anything.
Frequently asked questions
How do I know if my existing locks meet my insurer's requirements?
Most home insurers in the UK specify that front doors must have a BS3621-rated 5-lever mortice deadlock fitted alongside any nightlatch, or in the case of a uPVC or composite door, a cylinder that meets TS007 standards. The exact wording will be in your policy documents. When you book a lock change with us, our technician can inspect what is currently fitted and advise on whether it meets common insurer requirements. We always recommend checking with your insurer directly before we begin, so you know the new hardware will satisfy your policy.
I am a tenant — am I allowed to change the locks?
In most tenancy agreements, tenants need written permission from their landlord or letting agent before changing any locks. If you have that permission, we are happy to carry out the work. We would typically hand the new keys to you, and you would then arrange to provide a copy set to your landlord as agreed. If you are in a dispute situation and unsure of your rights, it is worth speaking to a housing adviser before proceeding. We do not get involved in disputes between tenants and landlords — we simply carry out the physical work once the authority to do so is clear.
What is cylinder snapping and should I be worried about it in Beckenham?
Cylinder snapping is a method used by burglars to break a standard euro cylinder — the type fitted to most uPVC and composite doors — in a matter of seconds using basic tools. The technique exploits the part of the cylinder that protrudes beyond the door face. Anti-snap cylinders are engineered so that if force is applied, the outer section breaks away while an internal barrier keeps the lock mechanism intact. TS007 3-star cylinders are the current benchmark recommended by lock manufacturers and many insurers. We fit anti-snap cylinders as standard on all uPVC door lock replacement Beckenham jobs unless a customer specifically requests otherwise.
How quickly can you reach me for an emergency lock change?
When you call 020 3757 5562, we aim to have a technician with you in around 30 minutes for most addresses in the Beckenham area, including BR3 postcodes. We cannot guarantee an exact arrival time because road conditions around Beckenham town centre and the A213 corridor do vary, but we send someone straight away and keep you updated. We answer the phone 24 hours a day, every day of the year including bank holidays.
Can you change the locks on a uPVC door without damaging the door or frame?
Yes, in the vast majority of cases. Replacing a euro cylinder on a uPVC or composite door is a straightforward process — the cylinder is secured by a single retaining screw behind the handle, and an experienced technician can remove and replace it without any marking or damage to the door. Where a full multipoint lock mechanism needs replacing rather than just the cylinder, there is slightly more work involved, but our technicians are experienced with the common multipoint systems found on uPVC doors across Beckenham's housing stock. We always assess the door before quoting so there are no surprises.
Do you change locks for landlords and letting agents on a regular basis?
Yes, this is a significant part of our work in Beckenham. Landlords and managing agents typically book a lock change between tenancies to ensure no previous keys remain in circulation. We work at times that suit the property's schedule — including evenings and weekends when access is easier to arrange — and we can provide written confirmation of the hardware fitted. If you manage multiple properties in and around Beckenham, we are happy to discuss how we can support your routine end-of-tenancy process efficiently.