Shields Up. Since 1956.®
Protection Your Way.
Custom Security Solutions for Southern California Homes and Businesses.
Shields Up. Since 1956.®
Home
Security
Customized security packages that result in earlier threat detection and
synchronized response, getting you help faster when it matters most.
Shields Up. Since 1956.®
Patrol
Services
Our highly trained officers provide 24/7-armed response and patrol,
deterring potential property crime with their presence and vigilance.
Shields Up. Since 1956.®
Night
Shield®
Our unique and proprietary service has helped us deter burglaries, mail
theft, and vehicle theft by getting to the scene before anything happens.
Shields Up. Since 1956.®
Vacation
Shield
Real-time monitoring by highly trained experts, ready to act decisively in
emergencies to identify and deter threats for when you are home or away.
Shields Up. Since 1956.®
Commercial
Security
Fully integrated solutions designed and customized to fit the needs of
your business, protecting your assets and employees in any situation.
Advanced security solutions, tailored just for you.
Post Alarm pairs generations of experience with the latest in security technology and rapid patrol response for unparalleled peace of mind and protection. As one of the only local, full-service security organizations in the Southern California area, Post Alarm provides solutions including:
Professionally installed, customized security packages that result in earlier threat detection and synchronized response, getting you help faster when it matters most.
Home Security
Home Security
Go
Fully integrated solutions designed and customized to fit the needs of your business, protecting your assets and employees in any situation.
Commercial Security
Commercial Security
Go
24/7 alarm and video monitoring by our award-winning locally owned and operated U.L. Central Monitoring Station.
Local Monitoring
Local Monitoring
Go
View live video feeds and get real-time notifications of any activity with video security solutions, including Night Shield® – our live video monitoring and response solution.
Video Surveillance
Video Surveillance
Go
Our highly trained officers provide 24/7-armed response and patrol, plus additional services like Vacation Watch and Patrol escorts.
Patrol
Patrol
Go
Monitored smoke and carbon monoxide detection technology that sends help in an emergency, whether you are home or not.
Fire & Life Safety
Fire & Life Safety
Go
Protecting Southern California Communities
With local alarm monitoring and patrol, help is right around the corner.
What sets Post Alarm apart from other Southern California security companies is our local monitoring. Since we own and operate our own in-house U.L. Central Monitoring Station, that means our team members personally monitor alarms from every one of our Southern California clients’ systems.
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 local team members from Beverly Hills to Santa Clarita, who still provide the level of client service that has been associated with our company since its inception.
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Why Choose Us
The proof is with Post.
Integrated Security Solutions
Fully integrated security solutions resulting in earlier threat detection and synchronized response, getting you faster help when it matters most.
24/7 Local Alarm Monitoring
Our locally based UL Central Monitoring Station is the fundamental hub of our security services, and our advanced alarm panels keep your system in constant communication.
We Live Here Too
Post Alarm has been family-owned and locally operated and serviced since 1956. We know how important it is to protect the neighborhoods we call home.
Your Safety, Your Way
We take pride in tailoring alarm systems to your specific needs. From installation to ongoing support, our team provides professional, knowledgeable, and prompt service.
The Post Alarm Advantage
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 History Post Patrol
Learn more about our award-winning patrol services.
See why our customers rate us #1
Read our 5-star reviews on Yelp & Google.
Nick L.
San Francisco, CA
We had some intense stuff happen before we moved to our new home (stove and fridge stolen) and wanted a security system before getting everything moved in.
Jennifer H.
San Jose, CA
I contacted CA Security Pro very late at night after finished working. I was amazed that I got a reply right away from the owner David and the agent Kyle.
Raymond P.
Venice, CA
I’m very pleased with the customer services I received when I spoke with Leslie, she was very helpful throughout the process.
Nick L.
San Francisco, CA
We had some intense stuff happen before we moved to our new home (stove and fridge stolen) and wanted a security system before getting everything moved in.
Raymond P.
Venice, CA
I’m very pleased with the customer services I received when I spoke with Leslie, she was very helpful throughout the process.
Jennifer H.
San Jose, CA
I contacted CA Security Pro very late at night after finished working. I was amazed that I got a reply right away from the owner David and the agent Kyle.
Nick L.
San Francisco, CA
We had some intense stuff happen before we moved to our new home (stove and fridge stolen) and wanted a security system before getting everything moved in.
Jennifer H.
San Jose, CA
I contacted CA Security Pro very late at night after finished working. I was amazed that I got a reply right away from the owner David and the agent Kyle.
Raymond P.
Venice, CA
I’m very pleased with the customer services I received when I spoke with Leslie, she was very helpful throughout the process.
Areas We Serve
Proudly protecting communities across Southern California.
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Arcadia
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Bel Air
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Beverly Hills
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Beverlywood
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Hollywood Hills
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Los Angeles
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Los Feliz
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Malibu
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Monrovia
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Pacific Palisades
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Palos Verdes Estates
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Pasadena
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Rancho Palos Verdes
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Santa Monica
- See More
Our Blog
Security and safety tips to get the most from Post.
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