Find the 8 Best Security Companies in Chicago, IL

Maxx Locksmith & Security provides 24/7 emergency locksmith services, security systems, intercom repairs, and access control solutions in Chicago and surrounding suburbs. Our licensed technicians specialize in residential and commercial lock installations, CCTV systems, and keyless entry technologies. We combine technical expertise with personalized service to deliver reliable security solutions that protect homes, businesses, and institutions.

Cam9install is a leading security solutions provider specializing in CCTV installation, maintenance, and optimization for residential and commercial clients in Chicagoland. We offer remote monitoring via free mobile apps, WiFi networking services, and professional audio/video system installations. Our team delivers tailored security strategies with a focus on innovation, reliability, and customer-centric service.

Security Doctors provides advanced home and business security systems in Illinois. We specialize in 24/7 monitoring, smart home automation, and customized security solutions for residential and commercial clients. Our services include burglary prevention, environmental hazard detection, and access control systems.

VinTech Systems delivers advanced commercial and residential security solutions in Chicago and surrounding areas. With 18 years of expertise, we specialize in high-definition video surveillance, 24/7 burglar alarm monitoring, access control systems, and construction site security. Our client-centric approach combines customized installations, remote management capabilities, and preventative maintenance to ensure optimal system performance.

Alert Protective specializes in residential and commercial security solutions, including alarm systems, video surveillance, and 24/7 monitoring. Founded in 1982, we deliver customized security systems tailored to protect homes and businesses across the Midwest. Our commitment to quality is reflected in our experienced technicians, advanced technology, and community-focused approach.

Sentinel Alarm delivers customized security solutions for homes and businesses, specializing in 24/7 monitored alarm systems, video surveillance, access control, and smart home integration. With over 45 years of experience, we combine certified installations, advanced monitoring technology, and bilingual customer support to protect properties across Montreal, Quebec, and the northeastern United States. Our commitment to quality ensures reliable, tamper-proof security systems that meet insurance standards and provide peace of mind.

606 Installs provides professional security camera installation and maintenance services in the Chicagoland area. We specialize in residential, commercial, and industrial surveillance systems with advanced features like remote monitoring and smartphone integration. Our solutions include solar-powered mobile surveillance trailers and comprehensive warranties for equipment and installation.

Chase Security Systems manufactures protective enclosures and access control infrastructure for life safety devices, audio systems, and integrated technology. Specializing in custom-engineered solutions since 1976, we serve educational institutions, healthcare facilities, public venues, and commercial properties with durable steel enclosures that protect critical infrastructure while maintaining code compliance. Our product line includes pedestals, towers, control panels, and specialized guards designed to accommodate both legacy and modern security technologies.