If you want old keys to stop working, you may not always need completely new hardware.
When Rekeying May Be Enough
Rekeying may be appropriate when the lock is compatible, functions correctly, and you mainly want a different key to operate it.
When Replacement May Make More Sense
Replacement may be preferable if the lock is worn, damaged, outdated, or you want to upgrade functionality.
Consider the Entire Door
Door alignment, strike plates, hinges, frames, and installation quality can all affect operation and security.
