Find the 3 Best Security Companies in St. Louis, MO

Burnes Citadel Security specializes in residential and commercial security systems, offering intrusion detection, video surveillance, and smart home technology. With over 50 years of experience, we provide customized solutions designed to enhance safety and simplify life for homeowners and businesses in St. Louis. Our services include 24/7 monitoring and mobile integration for real-time control and alerts.

Pro-Tech Locksmith delivers comprehensive automotive, residential, and commercial locksmith services in St. Louis, MO. With 24/7 emergency response capabilities and certified technicians, we specialize in key replacement, lock installation, and security system upgrades. Our locally-owned business combines rapid service delivery with competitive pricing to meet diverse security needs.

Hackett Security is a premier security systems integrator specializing in customized residential, commercial, and institutional solutions. Since 1977, we have provided advanced security technologies including 24/7 monitored alarm systems, video surveillance, access control, and ID solutions. Our UL-certified monitoring station ensures rapid response to protect assets and ensure peace of mind.