Citadel Lock and Security Company is a locksmith in Oswego, Illinois 60543 that specializes in Automotive, Commercial, Residential, and Safe locksmith services. If you are in need of a nearby locksmith to perform services such as key duplication, car key programming, lock rekeying, lock installation, lockout service, or any other locksmith services in Oswego, Illinois 60543, contact Citadel Lock and Security Company by calling us at 630-551-1311.