There are times when locking yourself out of your residence can be an emergency situation also. For example, if you lock yourself out and your small kids are left inside or you leave something cooking on the stove that could burn and start a fire. Whatever the situation, an emergency locksmith will arrive rapidly to get you back in your residence before a catastrophe occurs.
There are other lock emergencies that happen besides lockouts. Often people call when their key has unpredictably broken off into a lock and cannot be retrieved. In this case, the entire lock may need to be removed and the broken piece extracted. Several times, the lock will require to be rekeyed and replacement keys will need to be made. A specialized locksmith should be proficient to perform all of these tasks in very little time.