Not just deadbolts and doorknobs, but automobile door locks and ignition switches can be re-keyed. Sometimes replacement is a better option, depending on whether there is any damage present. However, an honest locksmith will evaluate the situation and let you be fully informed to make a decision that will best suit your needs and pocketbook.

Putting together a 'project car' or replacing a damaged lock from the junk yard? Have a current key and want it to fit that lock? Those are items that can be re-keyed as well. If you have a lock cylinder with a correlating key that fits, it can be re-keyed to your key or to a new key.