| September 11, 2026

Never Forget: Reflecting on Patriot Day

Reflecting on Patriot Day 2026: honoring courage, sacrifice, and the heroic first responders and communities impacted by 9/11.

| September 9, 2026

All the Technology in the World Still Has to Lock the Door

Explore how Security Door Controls emphasizes the essential role of physical hardware in access control systems amidst growing technology advancements.

| September 1, 2026

See SDC at PDK in Columbus, OH

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.

| August 7, 2026

40 Years of Comprehensive Delayed Egress Solutions

Discover the evolution of delayed egress solutions pioneered by SDC, offering flexible, customizable security for various applications since 1985.

| July 24, 2026

Survey Once. Design Smarter. Win Faster.

SDC Products Are Now Available on System Surveyor! - Automate Design & Build a Bill of Materials for SDC.

| July 10, 2026

Why Integrated Electrified Exit Devices For High-Traffic Commercial Openings Matter

SDC's S6000 series electrified architectural rim, vertical rod, and mortise exit devices offer several electrified options to complement your access control system.

| July 7, 2026

See SDC at The Banner Solutions Expo in Frisco, TX!

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.

| July 3, 2026

Independence Day 2026

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.

| June 19, 2026

See SDC at ALOA in Las Vegas - Booth#117

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.

| June 17, 2026

SDC Products are Available on Comsense® - Improving Hardware Project Efficiency

Discover how Comsense® enhances efficiency in architectural openings and access control projects, streamlining processes and improving accuracy.

| June 10, 2026

SDC's Founder Day: Honoring Art

Celebrate SDC Founder Day and explore the innovation legacy of Art Geringer, the pioneer of modern electrified access control.

| June 5, 2026

Secure Every Opening with Confidence: Electra™ 7200 Series

Discover the Electra™ 7200 Series, a reliable electrified locking solution that combines durability, security, and seamless integration for modern access control needs.

| June 1, 2026

Award-Winning Access Control in Long Term Care

SDC Captures 1st Place DHI Robert G. Ryan Editorial Award.

| May 25, 2026

Closed to Observe Memorial Day 2026

In the memory and honor of so many, SDC will be closed on Monday, 5/25 and open again on Tuesday, 5/30.

| May 15, 2026

May the Force Be With You: The Industry Standard in EMLocks®

Discover why SDC's EMLocks are the industry standard for electromagnetic locks, offering reliability, versatility, and long-term value for access control solutions.

| March 27, 2026

High-Traffic ADA Compliance Starts at the Door

SDC's EntryControl AUTO Series delivers convenient ADA-compliant swing door operation of high-traffic doors at any point of entry to keep people moving.

| March 12, 2026

See SDC at ISC West 2026 Las Vegas - Booth#20109

Since 1972 SDC products have been Designed, Engineered and Built in America. Visit Booth#20109 to checkout some of SDC's popular products.

| February 21, 2026

SDC’s LR100 Series ELR Kits Are the Top Choice for Access Control in the U.S.

SDC introduced the first motorized retrofit ELR kit in 2012. Since then Quiet Duo LR100 solutions have been the leader in durability & installation ease.

| January 26, 2026

The Ultimate Guide to Datacenter Physical Security: Why Door Controls Matter

Doors are the last line of defense, protecting the facility’s most valuable assets. Learn why physical door security is essential in modern Datacenters.

| December 25, 2025

Merry Christmas from SDC

From the SDC family to yours, we wish you a Merry Christmas and a New Year full of success and prosperity. Our office will be closed December 25th - 26th and January 1st.

| December 5, 2025

Explosion Proof Access Control

Discover SDC's explosion proof access control solutions designed to prevent sparks in hazardous environments, ensuring unmatched safety and reliability. Learn more about SDC's explosion proof collection of products.

| November 27, 2025

Happy Thanksgiving from SDC

In celebration SDC will be closed Thursday 11/27 and Friday 11/28. Be safe, healthy, and enjoy!

| November 21, 2025

Reduce Time-In-Transit & Shipping Costs

Discover how SDC's shipQUICK® program reduces downtime and accelerates project completion with reduced lead times for security installations. Stay efficient and meet tight schedules effortlessly.

| November 14, 2025

Ron Bandur In Memoriam

Sadly, a valued member of our SDC work “family” – Ron – passed away last week after a brief illness.