CSI Security
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Features wanted
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About
CSI Security designs protection around how spaces actually function, not how systems are marketed. From continuous monitoring to remote access, every layer is built for visibility, response, and accountability.
Overview
Serves Los Angeles, CA
Background checked
37 employees
46 years in business
Business hours
This pro hasn't listed their business hours.
Payment methods
This pro accepts payments via Cash, Check, Credit card, and Zelle.
Services offered
Features wanted
Building height
Single-level building
Two-story building
Three-story building
4-10 story building
Reviews
Exceptional 5.0
96 reviews
5
99%
4
1%
3
0%
2
0%
1
0%
Read reviews that mention:
Dorrit R.
1 month ago
From Google
The folks at CSI Security are very nice and helpful. They guided us on troubleshooting our older system so we could address issues. Much appreciated.
CSI Security's reply
Hi Dorrit,
Thank you for your kind review and for taking the time to share your experience. We’re glad our team was able to help troubleshoot your older system and guide you through resolving the issues.
At CSI Security, we believe in supporting our customers for the long term, including helping maintain and service existing systems whenever possible.
We truly appreciate your trust and your thoughtful words. Thank you again!
CSI Security Team
jaehee Y.
May 8, 2026
From Google
CSI is the most caring security service company I can imagine. All the team members make you feel like family. They really care about you. I'm so glad I upgraded my entire security system with them and feel safe and secure. Highly recommended.
CSI Security's reply
Hi Jaehee,
Thank you for your wonderful review! It means so much to all of us at CSI Security. Our primary goal has always been to create a company where our clients feel cared for, supported, and treated like family.
We are delighted to hear that upgrading your security system has provided you with greater peace of mind and helped you feel safe and secure in your home. We truly appreciate your trust in our team and your heartfelt recommendation.
Thank you once again for your support. We look forward to being here for you for many years to come!
Best regards,
The CSI Security Team
Stuart E.
May 5, 2026
From Google
I can't speak highly enough about Alex and the entire CSI team. Our insurance required installation of additional equipment. CSI worked quickly and professionally to help satisfy the insurer's requirements with minimal stress and prompt service.
CSI Security's reply
Hi Stuart,
Thank you for the wonderful review and for trusting CSI Security. We’re very pleased to hear that Alex and our team were able to quickly and professionally provide the additional equipment your insurance company required.
CSI Security specializes in insurance-required monitored fire systems for both residential and commercial properties, and we understand how important it is to complete these upgrades properly, efficiently, and with as little stress as possible.
We truly appreciate your kind words and your confidence in our team. Thank you again for choosing CSI Security!
Best-Al
Steven D.
May 5, 2026
From Google
CSI security was very responsive after discovering 2 sensors were placed where the summer window screen needed to go. They sent a great tech named Erix, who was professional, speedy, thorough and most importantly - polite and friendly! It probably helped that he recently moved to LA from the Midwest. Hopefully hell keep his personable and friendly personality! Thank you so much!
CSI Security's reply
Hi Steven,
Thank you for your thoughtful review—we truly appreciate it! We are glad we could respond quickly to resolve the sensor placement issue.
Erix will be pleased to hear your feedback. He takes great pride in his work, and we agree that his professionalism and friendly approach make a significant difference. We are fortunate to have him on our team.
Thanks once again for placing your trust in CSI Security. Please don't hesitate to reach out if you need anything in the future!
Paige L.
Apr 29, 2026
From Google
Great service. Erix came out to fix an issue with our system. He was timely, got the job done quickly and made some great suggestions.
CSI Security's reply
Hi Paige,
Thank you for the great review! We’re glad to hear you found our pricing reasonable and that you had a positive experience with Erix. He takes pride in being timely, efficient, and helpful, so we’ll be sure to pass along your kind words.
We appreciate your trust and are always here if you need anything in the future!
Credentials
Background Check
Al Radi