Advanced security solutions, tailored just for you.

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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:

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Professionally installed, customized security packages that result in earlier threat detection and synchronized response, getting you help faster when it matters most.

Home Security
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Home Security

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Fully integrated solutions designed and customized to fit the needs of your business, protecting your assets and employees in any situation.

Commercial Security
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Commercial Security

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24/7 alarm and video monitoring by our award-winning locally owned and operated U.L. Central Monitoring Station.

Local Monitoring
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Local Monitoring

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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
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Video Surveillance

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Our highly trained officers provide 24/7-armed response and patrol, plus additional services like Vacation Watch and Patrol escorts.

Patrol
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Patrol

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Monitored smoke and carbon monoxide detection technology that sends help in an emergency, whether you are home or not.

Fire & Life Safety
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Fire & Life Safety

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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.

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Integrated Security Solutions

Fully integrated security solutions resulting in earlier threat detection and synchronized response, getting you faster help when it matters most.

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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.

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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.

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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.

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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.

Roberta M.

Pasadena, CA

Jaime From Erc & Cruz from IT did an outstanding job for us they work through an issue and got everything working. I would recommend them anytime to great technicians. Thank you. Great Job!!

John G.

Arcadia, CA

I had a problem when a basement pipe had a pinhole leak which got the nearby alarm equipment there wet . Had to replace a transformer and battery . Alex F oversaw all the repairs and was terrific. . He gave me his cell # to keep in touch to determine if the backup battery was re-loading or not to see if it was burned out . Couldn’t ask for better service , responsiveness or communication . Also , charged only one service call

C.N. Dilley

The Post team was terrific from start to finish! They were professional, arrived on time, stayed until the job was done, helped ensure the system was working properly, and had great follow-up after the installation. We are thrilled with our new system and the advanced features it offers!

Denys H.

Woodland Hills, CA

Post Alarms does a good job keeping us safe. Cruz in IT is very responsive and helpful. Recently we had two extra cameras installed and Rodel and Carlos did an excellent and professional job.

Los Feliz Estates

Excellent Company, Extremely Professional Management, Top Service and all at a Reasonable Price…can’t beat Experience, and that’s why we work with Post…. for years! Thank you, Post, you protect us and help us and we truly appreciate your Service!

Grace B.

Los Angeles, CA

Ive had and continue to have 5 star service from Post Alarm. Everyone i have encountered has been extremely helpful and courteous. Their system works like a dream and when it doesnt (because I have upgraded my router) I have a 2 minute conversation with Cruz their IT technician and it’s back to running smoothly. Couldn’t ask for better tech support! 10/10 all round.

D.T.

Sierra Madre, CA

Our family has been a Post Alarm customer for decades, and the professionalism of their service staff is worth noting. Service field supervisor Patrick Fay did an excellent job explaining how things worked as we went from room to room. He was efficient, organized, and worked meticulously as if it was his own house. He had all the needed tools, and came prepared. I like that they recycle old equipment and parts so it doesn’t just end up in a landfill.

I learned from him, and would recommend that if you have to request a service call from Post Alarm, that you request Patrick.

Marci S.

Los Angeles, CA

Our HOA uses Post Alarm. They are kind, conscientious and professional. Today, my alarm went off while I was at work. KLARISSA deserves tons of applause for keeping me updated and calm. She was amazing. Officer PETINA checked my house and waited for me to arrive home to check it again. He was confident, professional and so kind. Huge shout out to these special employees!

Elaine

H.

I am a realtor, I recently had Post installed for my client house, the sales rap Ryan give us excellent service beyond my expectations. Every time when Me or my client have questions about the system, he responded right away, and solve the problem. All I have to say is, this is a great family owned company, they care about their customers.

Areas We Serve

Proudly protecting communities across Southern California.

  • Arcadia

  • Bel Air

  • Beverly Hills

  • Beverlywood

  • Hollywood Hills

  • Los Angeles

  • Los Feliz

  • Malibu

  • Monrovia

  • Montecito

  • Pacific Palisades

  • Palos Verdes Estates

  • Pasadena

  • Rancho Palos Verdes

  • Santa Barbara

  • Santa Monica

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