A mobile locksmith covering Bayswater and neighbouring W2 districts can replace or upgrade your locks. This covers front doors, back doors, internal doors and communal entrances. Common reasons to change a lock include moving into a new property, losing keys, or a relationship breakdown.
Others include the end of a tenancy, or a lock that has become worn, stiff or damaged. We remove the existing hardware, fit a new cylinder or complete lock case, and run a quick function test before we leave.
Yale nightlatch vs mortice locks
Most UK front doors use either a Yale nightlatch — a surface-mounted latch with a separate cylinder — or a mortice lock, a lock body set into the door edge. A nightlatch is quicker to swap, because only the cylinder needs changing. A mortice lock often needs the whole lock case replaced. The choice depends on the door thickness, the existing cut-out, and whether you want a deadbolt function in addition to the latch.
Upgrading to BS3621 while you’re at it
If the current lock does not meet the BS3621 standard, a lock change is the ideal moment to upgrade. A BS3621 lock satisfies most insurance requirements and provides a higher level of resistance to forced entry. For a detailed guide on the standard and the models available, see the dedicated page on BS3621 locks.
Moving into a new flat or house
Changing the locks on move-in is standard practice for anyone who wants to be certain that no previous occupant or contractor retains a key. It’s a straightforward job that we can usually finish on the same day. This gives immediate peace of mind, with no legal obligation to do it.
Landlords and letting agents
For tenant changeovers, landlords and letting agents often need a fast, documented lock change. You’ll find the process and any specific documentation requirements on the landlord lock changes page.
Frequently asked questions
How much does a locksmith cost to change locks?
The price varies with the lock type and the number of cylinders. It can also depend on whether extra hardware is needed, such as a new keep or strike plate. For typical UK market ranges, refer to the locksmith prices London page.
How long does a locksmith take to change a lock?
A straightforward cylinder swap on a nightlatch can be done in under 30 minutes, while a full mortice lock replacement may take longer depending on door preparation and alignment. Timing also depends on the time of day and travel distance.
How much does it cost to change a lock in London?
London labour rates and parts pricing are higher than the national average, so the total will reflect the specific lock model and any extra fittings required. See the locksmith prices London page for indicative ranges.
Call request a call back or send details through the contact form for a quote, and visit locksmith prices London for typical market ranges.