Two different ways to change access
Replacing a lock changes the hardware. Rekeying changes the key combination inside a compatible lock so a different key operates it. Which option is possible depends on the lock and its condition.
A locksmith can inspect the lock and explain whether it can be rekeyed or whether replacement makes more sense. If the lock is damaged, worn or unsuitable, changing it may be the practical option.
When you get in touch, mention the lock type if you know it. A photo of the cylinder and door can help identify what is fitted.
What to mention when you call
Explain the door or lock type if you know it, what has changed and whether the door still locks. For non-urgent enquiries, a photo can help show the hardware.

