Your locks were not built to last forever. In fact they even have ratings for how many uses a lock has before its considered a risk. Its always best to call a locksmith before your lock has completely gone bad, this can prevent a lockout situation. You don’t always need to replace the lock if it is acting up. Parts can be replaced to bring your lock back to working order. Have Grizzly Lock and Key come by to repair your lock before it needs to be replaced.