We offer customers a complete range of residential & commercial security systems, business security solutions, business alarm systems, and services that are unparalleled. What's more, our commitment to you extends far beyond our unmatched security solutions. CITADEL has a range of technologically-advanced security products and services, and you're invited to explore them here. Learn about the many ways in which CITADEL can help your organization improve its security and its bottom line. Contact CITADEL SECURITY for an on-site consultation at 514-667-6770. more... See more text