The security industry has never had more technology at its disposal. But at the end of every sophisticated access control system is something decidedly physical: A door still has to lock. And it still has to unlock when it’s supposed to.
Since 1972 SDC products have been Designed, Engineered and Built in America. See us at PDK Columbus to checkout some of SDC's popular products.
Discover the evolution of delayed egress solutions pioneered by SDC, offering flexible, customizable security for various applications since 1985.
SDC Products Are Now Available on System Surveyor! - Automate Design & Build a Bill of Materials for SDC.
SDC's S6000 series electrified architectural rim, vertical rod, and mortise exit devices offer several electrified options to complement your access control system.
See us at Banner Solutions' 2026 Security Professional Trade & Training Expo! Attend an SDC LR100 Certification Course and gain valuable hands-on installation training from our experts.
Celebrate Independence Day with Security Door Controls as we reflect on the values that drive American innovation and community. Enjoy a safe holiday! We will be closed Friday, July 3rd, 2026.
See us at 2026 ALOA Convention & Security Expo, stop by the SDC booth #117 and discover the latest innovations in access control, electrified door hardware, locking solutions, and integrated security technologies.
Discover how Comsense® enhances efficiency in architectural openings and access control projects, streamlining processes and improving accuracy.
Celebrate SDC Founder Day and explore the innovation legacy of Art Geringer, the pioneer of modern electrified access control.
