Reliable First Alarm is a company that has safeguarded businesses and buildings for over 40 years. First Alarm started as a small security company in Santa Cruz County. It is now Northern California's leading commercial and home security provider. First Alarm has become synonymous with reliability and safety through growth, acquisitions, and experience. First Alarm is one of America's largest security companies. Our corporate headquarters are in Aptos, which has one of the most advanced security centres. San Jose and Monterey also have satellite offices. First Alarm has more than 160 security personnel. Our professionals protect homes, businesses, schools, government buildings, industrial facilities, and other structures in the San Francisco Bay Area.
