Safeguard Your Home or Business: Top-Rated Security System Installers in San Rafael, CA

Communication Service Co. is a low voltage contractor based in Northern and Central California, providing high-quality services in fire alarm installation, design build, master clock systems, intrusion systems, nurse call systems, direct equipment sales, and more. Our team of skilled professionals delivers the finest workmanship and superior services at a fair price. We pride ourselves on our commitment to providing excellent services and meeting the completion dates that are critical to our clients.

Warren Security Systems, Inc. provides comprehensive security solutions to homes and businesses in Marin and Sonoma counties, offering fire alarm systems, card access systems, automation systems, and more. With over 50 years of experience, our team of experts designs and installs custom security systems to provide peace of mind and security.