Do you need to rekey locks for your building? Rekeying locks is a crucial process that allows a lock owner to change the key that operates it, enhancing security and peace of mind. This is especially useful when there's concern about unauthorized access. By changing the pin configuration, a new key will function while the old one won't. Homeowners often rekey locks for convenience too, with common reasons being moving into a new place, losing a key, or wanting to use different keys for various doors. Rekeying all exterior locks to use the same key reduces confusion and key weight on your key ring.