Protect Your Family & Home
Our Story
Established in 1983, Ace Alarm is a Korean-American family owned security and alarm technology company serving homes and businesses throughout Southern California. Built on family values and a commitment to your community, we provide dependable, high-quality security solutions with the trust and accountability that come from generations of hands-on service and care.
Our Mission
Our mission is simple: to help keep your home and family safe. We do this by carefully selecting the right security systems for your needs and delivering dependable service.
Our Values
Customer Commitment
We prioritize your safety and satisfaction, providing responsive support and solutions tailored to your needs.
Community Focus
As a local company, we’re proud to serve and protect the communities we call home.
Innovation
We use the latest security technology to provide smarter, more efficient protection for your home.
1M+ Signals Processed
Over 1M+ signals Processed. Serving our community with fast response and dependable protection when it matters the most.
20K+ Customers
We’ve proudly helped over 20,000 customers across Southern California and Los Angeles protect what matters most.
40+ Years of Experience
Our local, professional technicians bring years of hands-on experience to every installation, ensuring your system is set up right and tailored to your needs.
James Chang
James Chang, CEO, brings four decades of security expertise and operational excellence. He has led the company in protecting over 20,000 clients and managing more than 150,000 monitoring signals with precision and reliability.
His leadership is driven by a clear vision — delivering advanced security solutions while maintaining personalized service and rapid response.
Meet our team
Kay
Chairperson
SJ
Director of Innovation
Daniel
Head Technician
Christina
Head Sales
Sean
Central Station Manager