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Welcome to Guardian Alarm Systems LLC website!


This page will tell you everything you need to know about our company.  If you have any further questions please don't hesitate to contact us! 


Based in Southern California since its creation in 1980, Guardian Alarm Systems has been at the forefront of providing top-tier installation and monitoring services.

Founded by Dewayne in 1980, Guardian Alarm Systems has remained a hallmark of excellence in the industry. In 2013, Dewayne passed the torch to his son, Andy, who has continued to uphold the company's legacy of exceptional service. With his wife and adult children beside him they've created one of the largest family-owned security service companies in Southern California. 

In 2024 Guardian Alarm Systems joined forces with Knight Guard Alarm Services, LLC.  This strategic merger not only expands our coverage area but also enriches our product offerings, ensuring that we can meet an even broader range of security needs for our valued customers.

We look forward to continuing to be your first choice for alarm services in Southern California. 

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