About Us

Bay Alarm is a third-generation, family-owned security company that has protected homes and businesses on the West Coast for over 80 years. Founded in Oakland in 1946, Bay Alarm is currently headquartered in Concord, California. We provide professionally installed and monitored security systems including burglar alarms, fire alarms, video surveillance, and access control for homes and businesses across California, Arizona, and Washington. It serves the Contra Costa, Solano and Alameda Counties area through the East Counties Branch staffed with trained local security professionals. Monitoring is handled through an in-house UL-listed, Five Diamond–certified center in Northern California. Bay Alarm is recognized as the largest independently owned security company in the U.S.