rekeying locks 2
https://ace-wiki.win/index.php/Why_a_Trusted_Mobile_Locksmith_Near_You_Makes_All_the_Difference
Rekeying locks means changing the internal pins so a new key works while old ones don’t, which is handy after losing a key or moving into a new place. It’s cheaper than replacing the whole lock, and a locksmith can often do it on the spot. Just keep in mind that not all locks are rekeyable—older or cheaper models might need full replacement instead.