Service Area

"From start to finish, their service was top-notch. The team was incredibly professional and knowledgeable, taking the time to explain all the options available for my home security needs. The installation process was smooth and efficient and Cody the technician made sure everything was set up perfectly before he left."
- Rachel B.

Let’s build a custom security system that fits your home, your business, and your budget. backed by real support right here in St. Louis.

Secure Your Home With Citywide

Not sure what your business needs?
Learn how our alarm systems, cameras, and access control can work together to keep your operation secure.

Learn More About Commercial Alarms →

Citywide Alarms is a St. Louis-based security company specializing in home and business alarm systems, security cameras, access control, fire monitoring, and smart home integration. We offer professional installation, 24/7 monitoring, and customized solutions across the greater STL area.

Our Locations

St. Louis
7733 Forsyth Blvd. Suite 1100
Saint Louis, MO 63105
St. Charles
965 Sycamore Dr.
St. Charles, MO 63304

Leave A Review

St. Charles →

St. Louis →

Business Hours

Mon-Fri: 8am–5pm

Sat-Sun: Closed

Our Services

Home Security
Business Security
Cameras
Medical Security & Cameras
Medical Alert Systems
Wellness
About
FAQ
Contact