Shields Up. Since 1956.

About Post Alarm.

Protecting Southern California Homes for More Than 60 Years.

The Tradition carries on

Peace of Mind and Protection, From Our Family to Yours.

Post Alarm has always been a local, family-owned company, and we plan on staying that way. As a privately held, third-generation family business, Post has provided Alarm and Patrol Services to communities, neighborhoods, and homeowners since 1956.

Our family founded Post Alarm on a passion for protecting people and the neighborhoods we call home. We take pride in our long tradition of providing uncompromising service to protect clients and their homes, families, and businesses while extending our family-style commitment and care to every customer we serve.

Our mission.

Providing uncompromising service focused on protecting clients and their families, homes, and businesses while extending our family-style commitment and care to every customer we serve.

The Post Alarm Advantage

The Proof is with Post.

With local alarm monitoring and patrol, help is just right up the street.

Local Monitoring Service

The hub of Post Alarm’s operations is our award-winning and UL-listed, owned and operated monitoring and dispatch facility that enables swift and decisive actions to alarm events and patrol dispatches.

Local Employees

Through continual innovation and growth, we’ve led the way in advancing security technology offerings to our customers while keeping our core values solidly in place. Today, Post Alarm has over 125 team members who still provide the level of client service that has been associated with our company since its inception.

Patrol

As one of the only companies offering award-winning residential and commercial patrol, we take our responsibility to protect our customers very seriously. Our highly trained officers are crucial to our integrated security solutions, providing 24/7-armed response and patrol, plus additional services like Vacation Watch and Patrol escorts.*

*In areas where Post Patrol services are offered.

Our History

The Tradition Carries On.

Post Alarm was founded in 1956 by retired police chief Sam Post. Sixty-eight years and three generations later, the company is still owned and operated by his grandchildren, Robert Post and Gina Post-Franco. Today, it is one of the largest security companies in Southern California, with over 125 team members and over thousands homes and businesses as clients.

As a third-generation, family-owned and operated business, we are dedicated to improvement and innovation. We provide our customers with the most advanced and reliable security solutions while remaining true to our core values.