Citywide Alarms

Home/Security system supplier/Citywide Alarms

We specialize in the installation of home alarms, business alarms and security cameras in the Greater St. Louis Area. We offer Smart Home Automation features like Video Doorbells, Smart Door Locks, Garage Doors, Thermostats, Lights and more. With our systems, you are able to manage your home or business from your smartphone and receive custom alerts and notifications.

Business Hours

  • 8:00 am - 5:00 pm
  • 8:00 am - 5:00 pm
  • 8:00 am - 5:00 pm
  • 8:00 am - 5:00 pm
  • 8:00 am - 5:00 pm
  • 8:00 am - 5:00 pm
  • 8:00 am - 5:00 pm

Security System Setup & Installation

Get expert security system setup and installation from Citywide Alarms. Our local team installs smart, user-friendly systems tailored to your home or business, fast, professional, and done right the first time. Protect what matters most with trusted St. Louis security pros.

Commercial Security Systems Setup & Installation

Protect your business with professionally installed commercial security systems from Citywide Alarms. We design and install smart, scalable solutions tailored to your property, keeping your people, assets, and operations secure 24/7.

Home Alarm Setup & Installation

Secure your home with a professionally installed alarm system from Citywide Alarms. Our team sets up smart, reliable protection customized to your space, so you can rest easy knowing your home and family are safe around the clock.

Fire Systems Alarm Setup & Installation

Safeguard your property with an expert fire alarm system setup from Citywide Alarms. We install reliable, code-compliant fire detection systems that alert you instantly, protecting lives, assets, and giving you peace of mind.

Smart Home Setup & Installation

Upgrade to a smarter, safer home with professional smart home setup from Citywide Alarms. We install and integrate smart locks, thermostats, lights, and more, giving you total control from your phone and unmatched convenience every day.

Social Profiles

Citywide Alarms

People Love Citywide Alarms

Amazing experience dealing with David and Justin who handled the install of my camera and alarm system. Took time to walk the job and communicate any issues or concerns that might come up. Very clean and considerate of how they kept the job site. Excellent work and couldn’t be happier with the install and product.

Camera, Alarm System 

Matthew Nugen

Amazing experience dealing with David and Justin who handled the install of my camera and alarm system. Took time to walk the job and communicate any issues or concerns that might come up. Very clean and considerate of how they kept the job site. Excellent work and couldn’t be happier with the install and product.

Camera, Alarm System

Matthew Nugen

Amazing experience dealing with David and Justin who handled the install of my camera and alarm system. Took time to walk the job and communicate any issues or concerns that might come up. Very clean and considerate of how they kept the job site. Excellent work and couldn’t be happier with the install and product.

Camera, Alarm System

Matthew Nugen

Amazing experience dealing with David and Justin who handled the install of my camera and alarm system. Took time to walk the job and communicate any issues or concerns that might come up. Very clean and considerate of how they kept the job site. Excellent work and couldn’t be happier with the install and product.

Camera, Alarm System

Matthew Nugen

Amazing experience dealing with David and Justin who handled the install of my camera and alarm system. Took time to walk the job and communicate any issues or concerns that might come up. Very clean and considerate of how they kept the job site. Excellent work and couldn’t be happier with the install and product.

Camera, Alarm System

Matthew Nugen