Explore Security Systems & Services in Seattle, WA

Signal Services provides advanced fire alarm, security, and life safety systems for residential, commercial, and institutional clients. With over 30 years of experience, we offer customized solutions including system design, installation, monitoring, and maintenance. Our Nicet-certified team ensures code compliance and operational reliability through cutting-edge technology and personalized service.

Guardian Security designs, installs, and maintains fire alarm systems, access control, video surveillance, and intrusion detection solutions. Serving Washington State since 1976, we offer 24/7 monitoring and integrated systems for commercial, institutional, and residential clients. Our locally-based team combines technical expertise with personalized service for comprehensive property protection.