A-1 Safe & Lock, Inc -Trenton, New Jersey A-1 Safe & Lock, Inc is a locksmith in Trenton, NJ 08619 specializing in Residential, Commercial, Safes, and Automotive locksmith services. If you’re locked out, need keys duplicated, or need other locksmith services, contact A-1 Safe & Lock, Inc’s shop located at 2444 Hamilton Ave in Trenton, New Jersey by calling 609-587-7172. Read more...