📍 23194 Kidder St, Hayward, CA, 94545
📞 800-255-4273
All-Guard is a family owned business serving Northern California since 1952. All-Guard offers a full range of security systems and services ranging from home, business, government and education security systems.
📍 20200 Redwood Rd Ste 15, Castro Valley, CA, 94546
📞 415-336-2152
📍 Serving Your Area, Hayward, CA, 94545
📞 888-880-4949
Sierra Group is a commercial general contracting firm with 3 distinct divisions: commercial construction, facilities maintenance, and electronic security surveillance / business alarms. Our commitment, dependability and sensitivity to operational schedules, environments and cost effective solutions allow us to provide a total solution for all of your building maintenance needs.
Updated Sep 2026
📍 16450 Ashland Ave, San Lorenzo, CA, 94580
📞 510-481-5565
🌐 actionalarms.net
Action Alarms is a security company located in San Lorenzo, California, specializing in custom security and surveillance systems for both commercial and residential properties. Their offerings include burglar and fire alarm systems, intercom systems, access controls, and CCTV monitoring. The company provides sales, service, and installation of state-of-the-art equipment, ensuring comprehensive security solutions for their clients.
📍 Serving Your Area, San Lorenzo, CA, 94580
📞 510-258-0901
📍 1981 W Winton Ave, Hayward, CA, 94545
📞 510-727-5653
Find home security and home surveillance products from ADT.
📍 PO Box 757, San Lorenzo, CA, 94580
📞 510-481-8022
Locally owned and operated. See us for all your needs.
📍 Serving Your Area, San Lorenzo, CA, 94580
📞 510-258-0982
📍 23663 Foley St, Hayward, CA, 94545
📞 510-887-9000
🌐 www.allmodularsystems.com
Locally owned and operated. See us for all your needs
📍 249 W Jackson St Ste 355, Hayward, CA, 94544
📞 510-754-2845