We can re-key most lock brands. Your existing hardware can almost always be reused. When we re-key locks, they can generally be keyed alike so that all the locks work with a single key or they can be keyed into groups with different keys. This is called keyed-alike in groups. Having your locks re-keyed is something you should plan to do in a wide variety of situations. When you buy a new home, move to a new office, or have a new tenant occupy a rental property, re-keying improves the safety of all concerned.