First Alarm

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First Alarm has been protecting businesses and homeowners for more than 40 years. The company, which began as a modest security force in Santa Cruz County, is now one of Northern California’s premiere commercial and residential security providers. Through growth, experience, and acquisition, First Alarm has become a name widely recognized for safety and dependability. Today, First Alarm is one of the largest security companies in the country. Our corporate office is located in Aptos, California, and is one of the most modern security centers in the industry. We also operate satellite facilities in San Jose, Monterey, and Rohnert Park. Today, First Alarm and our sister company, First Alarm Security & Patrol, Inc., field a team of more than 600 security professionals who help protect homeowners, businesses, school districts, government facilities, and industrial complexes in communities throughout the San Francisco Bay Area.