Security lock upgrade: repair or replacement decisions

https://aged-wiki.win/index.php/Security_lock_upgrade:_repair_or_replacement_decisions

When an old security lock starts sticking or the key won't turn smoothly, you're stuck weighing repair against replacement. A simple rekey or cleaning might fix it, but if the lock body is rusted or the mechanism has worn out from years of use, a new lock often offers better protection and reliability. Consider the age of the lock, the cost of parts, and whether modern security features like anti-pick pins would make a real difference for your home.