Owned and operated by the Post Family for over 50 years, we have become one of the largest, most respected full service security and fire companies in Southern California.

About Post Alarm Systems

Post Family

Post Alarm Systems is a full service commercial and residential security company serving all of Southern California. Owned and operated by the Post family for almost 60 years, Post Alarm prides Itself in providing the best security solutions, installation, service, armed alarm response/patrol and monitoring. They hire only the top industry experts and have all of their personnel pre-employment polygraphed and drug tested. Post Alarm is consistently ranked as one of the top 100 security companies in the nation by SDM (Security Dealer Magazine). As one of the largest, full service, privately owned security companies in southern california, customer service is their number one priority. They do not use subcontractors, you will always speal with a live person 24/7, they do not lock their clients into long lerm contracts and they even own and operate their own local 24 hour UI listed central monitoring center. They truly care about their client's needs and aim to not only meet bit exceed their expectations. We operate 24/7.

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