Much of the north of the city is converted flats behind a shared front door, and that changes what a lost key actually means. The right answer is often about key control rather than simply fitting a new barrel.
Locked Out of a Flat or Communal Entrance
Getting through a shared street door and then your own is two separate problems. Both are assessed, and where the entry can be made without damage that route is taken first.
Lost Keys on a Shared Front Door
A key missing from a converted house affects every flat behind that door. Changing the barrel and issuing a matched set to each household is usually cleaner than replacing the whole lock.
Replacement Cylinders for High Security Locks
Replacement cylinders for Banham locks and other high security patterns are stocked, including restricted key systems and security card controlled keys where copies need to be traceable.
Lock Changes Between Tenancies
Landlords and agents changing over a property need the old keys made useless and a clean set handed on. A written record of what was fitted can be supplied with the job.
Eviction and Repossession Attendance
Bailiff appointments are booked in advance and sometimes attended by police. The locksmith gains entry where it is lawful to do so and changes the locks immediately afterwards.
Nightlatches, Deadlocks and Rim Cylinders
Older north London front doors often carry a rim nightlatch above a mortice deadlock. Both can be upgraded to British Standard patterns without altering the appearance of the door.