Lock Change & Replacement

A lock change is not simply swapping one cylinder for another. When one of our technicians arrives, they check the door frame alignment, the condition of the keep and strike plate, and whether the existing lock meets your insurer's minimum requirements. On a standard Fulham period property, the front door typically carries a Yale-type nightlatch alongside a 5-lever mortice deadlock — insurers frequently require the mortice deadlock to meet BS3621. If yours does not, we can fit one that does, saving you a potential headache at claims time. On uPVC and composite doors, the multipoint locking mechanism is served by a euro cylinder, which should be an anti-snap, TS007 3-star rated unit — cylinder snapping is a real and documented attack method in London, and an underrated upgrade.

Back doors — often uPVC patio or French door configurations — present their own considerations. The multipoint lock on a French door must engage correctly on both leaves, and a damaged or misaligned mechanism can leave a door deceptively easy to force. We carry a broad selection of replacement cylinders and lock bodies so that in most cases the work is completed in a single visit, without damage to the door or frame wherever the hardware allows it.

Door lock replacement London-wide raises specific questions when rented property is involved. Tenants have a legal right to change the locks on their own flat, though most tenancy agreements require them to inform the landlord or letting agent and return a copy of the new key. Landlords and letting agents, particularly those managing blocks of flats in SW6 and the surrounding postcodes, often need a lock change completed quickly at the end of a tenancy — before a new tenant moves in — to ensure only authorised individuals hold keys. We work with private landlords, managing agents, and housing associations across Fulham, and we understand the practical urgency of turning a property around between lettings.

If you have recently moved into a property and do not know how many copies of the key are in circulation, changing the cylinder is straightforward and strongly advisable. We can also advise on master-key systems for landlords managing several properties, allowing a single key to operate communal entrance doors while individual flat doors retain their own unique cylinders. For any job involving a rented property, we ask for reasonable proof of your right to authorise the work — this is standard practice and protects everyone involved.

An emergency lock change is not always about a lockout. Common triggers include a broken key left inside the cylinder, a lock that has been tampered with or visibly damaged, a cylinder that has been snapped or drilled in an attempted burglary, or the discovery that a former occupant or ex-partner still holds a key. In any of these situations, the door is not secure until the lock is replaced — and that is a problem that cannot wait until a convenient weekday morning. Our team operates around the clock, including evenings, weekends, and bank holidays, and we aim to be with you in approximately 30 minutes once you call. If you are dealing with an urgent situation in Fulham right now, call us on 020 7871 7823 — we answer 24/7 and will send a technician straight away.

For situations where a lock has been attacked, we document the existing damage carefully, which can support an insurance claim if one is needed. We fit replacement hardware that meets or exceeds the original specification and, where appropriate, can recommend additional reinforcement such as a deadlock bolt or upgraded strike plate to close any vulnerability that the attack exposed.

The lock market is wide, and not every product sold online or in a hardware shop is appropriate for a front door in a busy London borough. When we quote for a door lock replacement London job, we factor in the door type, the existing hardware, the level of security you want, and whether your home insurer specifies a particular standard. BS3621 is the benchmark most UK insurers refer to for mortice deadlocks; TS007 3-star is the equivalent kitemark for euro cylinders. We stock and fit products that meet both standards, and we can explain the difference in plain terms so you can make an informed choice rather than simply accepting whatever happens to be on the shelf.

The final quote we give you reflects the type of lock chosen, the complexity of the installation, the time of day, and travel distance to your address in Fulham or the surrounding area. There are no hidden charges added after the work is done. If you have questions about what your insurer requires, we are happy to advise based on the policy wording you share with us — though for a definitive answer on cover, your insurer remains the authority. For a no-obligation quote or to book a lock change service at a time that suits you, call 020 7871 7823.

Our mobile lock change service in Fulham and across London includes the following specific work: euro cylinder replacement on uPVC doors; euro cylinder replacement on composite doors; anti-snap cylinder upgrades to TS007 3-star; 5-lever mortice deadlock supply and fitting; BS3621 mortice deadlock upgrades for insurance compliance; Yale nightlatch replacement; nightlatch addition to doors that currently have only a mortice lock; multipoint lock mechanism replacement on uPVC doors; multipoint lock mechanism replacement on French doors; front door lock change after a break-in; front door lock change after cylinder snapping; lock change following lost or stolen keys; lock change at end of tenancy for landlords; lock change at start of tenancy for new occupants; communal entrance door cylinder replacement for blocks of flats; sash lock fitting on internal and external doors; door handle-and-lock set replacement; lock change where door furniture is damaged or corroded; anti-drill and anti-pick cylinder upgrades; reinforced strike plate and keep fitting; door frame reinforcement alongside a lock change; lock change on back doors and patio door cylinders; lock change on French door cylinders; emergency lock change outside standard hours including weekends and bank holidays; and security assessment with written recommendation where requested. Every service is carried out by trained and insured technicians with experience across the full range of Fulham's housing stock — from purpose-built flats to large period conversions.