There are a lot of reasons you may need a key duplication. For example, a home owner has two doors to keep secure, and he/she wants to have a spare key in case one gets lost or broken. A car owner has an extra key that stays at work for emergencies when the vehicle needs to be accessed. In this way, you avoid having to get into the situation where somebody will have to let you in your office building while you’re stuck outside with no access other than breaking down the door if it’s closed!

In addition, many other people want copies made of their keys so they can lend them out without worrying about losing them themselves. Each person should only have a copy of his or her own key(s), while the original stays on the keychain.