CSI Security

CSI Security Reviews

Excellent rating
4.9 | 107 reviews
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CSI Security
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CSI Security rating: 4.9 out of 5 from 107 reviews

Trustindex 4.9 | 107 total

Rating breakdown

103 pcs
1 pc
1 pc
1 pc
1 pc
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What customers say about CSI Security

Recent reviews

Dorrit Ragosine
Dorrit Ragosine 2026.05.27
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.
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Reply from CSI Security 2026.05.28
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 yen
jaehee yen 2026.05.08
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.
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Reply from CSI Security 2026.05.08
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
Anastasia Konkina
Anastasia Konkina 2026.05.08
CSI customer service is impeccable! Fast response to any problem that might arise.
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Reply from CSI Security 2026.05.08
Hi Anastasia!
We truly appreciate you sharing your experience with us! It brings our team great joy to know you’re happy with our quick and attentive service. We recognize how vital it is to resolve issues swiftly, and we’re thrilled that we could support you whenever needed.

Thank you for trusting CSI Security—we're excited to continue serving you!

Warm wishes,
The CSI Security Team
Stuart Esner
Stuart Esner 2026.05.05
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.
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Reply from CSI Security 2026.05.06
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 Durbahn
Steven Durbahn 2026.05.05
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 he’ll keep his personable and friendly personality! Thank you so much!
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Reply from CSI Security 2026.05.05
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!
terry storch
terry storch 2026.05.01
Very professional. Erix made sure to answer all my questions
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Reply from CSI Security 2026.04.30
Hi Terry,

Thank you for your feedback—we truly appreciate you taking the time to share your experience. We’re glad to hear that Erix was professional and took the time to answer all your questions—that’s exactly the level of service we strive to provide.
Paige Lapinski
Paige Lapinski 2026.04.30
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.
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Reply from CSI Security 2026.04.30
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!
Nina Sussman
Nina Sussman 2026.04.29
I have been a client of CSI Security for years, and I'm extremely happy w/them. They are easy to get hold of if & when I need them,& the level of service is always great. I like everyone who works there,& would definitely recommend them.
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Reply from CSI Security 2025.08.26
Nina, thank you so much for your review! Your time is valuable, and we are delighted to hear that we could provide fast service. We appreciate your loyalty over the years. All the best, Al
David Guyette
David Guyette 2026.04.11
Fast response time to fix control panel
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Reply from CSI Security 2026.04.11
Thank you, David! We truly appreciate your feedback. We're glad to hear that you were satisfied with the pricing and that our team responded quickly to get your control panel up and running.

Providing fast and reliable service for your security system is always our top priority. Please don't hesitate to reach out if you ever need anything!
Allison Sampson
Allison Sampson 2026.04.10
On time Professional Positive
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Reply from CSI Security 2026.04.10
Thank you so much, Allison! We truly appreciate your kind words. Being punctual, professional, and providing a positive experience is exactly what we strive for every day. It means a lot to us to know that we achieved that for you. Best Al
Pamela Thompson
Pamela Thompson 2026.03.17
We had a problem with one of our smoke/CO alarms and Erix, the CSI technician, fixed it the same day the problem started. He was just terrific, not only in fixing the problem, but in explaining the cause and future prevention. He was polite and a delight to work with. I highly recommend CSI and their staff.
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Reply from CSI Security 2026.03.17
Hi Pamela,

I just wanted to take a moment to say thank you for your wonderful feedback! It really means a lot to us. We’re so glad we could respond quickly and get your smoke and CO alarm issue sorted out on the same day.

Erix is such a fantastic part of our team, and it’s great to hear that he not only fixed the issue but also took the time to explain everything clearly. We truly believe that good service and clear communication go hand in hand, so we’re thrilled to know you felt supported.

Thanks again for your recommendation! We’re always here for you whenever you need us.
Keith Billington
Keith Billington 2026.03.16
I want to thank in particular Annette @ CSI Security for going beyond the call of duty in helping me to figure out the issue I was having with my security/alarm system. She was extremely patient with me in diagnosing the problem and quickly returned my multiple texts asking numerous questions. I am glad Annette picked up my initial call to CSI Security.
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Reply from CSI Security 2026.03.16
Keith, thank you very much for your kind review. We truly appreciate you taking the time to share your experience.

Annette is a valued member of our team, and I’m very glad she was able to assist you and help resolve the issue with your security system. Providing prompt support and taking the time to make sure our clients feel comfortable and confident with their alarm system is very important to us.

On behalf of everyone at CSI Security, thank you for your trust and for allowing us to protect your home. If you ever need assistance in the future, please don’t hesitate to reach out — we’re always here to help.
Mary Ellen Wood
Mary Ellen Wood 2026.03.14
Erix went over and above to solve our sensor’s problems. Good worker, neat and respectful. Love CSI. They have always taken good care of us. Erix is no exception.
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Reply from CSI Security 2026.03.14
Mary Ellen,

Thank you very much for your wonderful review and kind words. We truly appreciate your continued trust in CSI Security. I’m delighted to hear that Erix was able to resolve the sensor issue and provide the level of service we strive for. I will be sure to share your compliments with him.

Thank you again for being such a valued client. We are always here for you whenever you need us!
Best Regards. Al
Pegi Medioni
Pegi Medioni 2026.03.12
Our technician Erix Korby was amazing . He worked quietly fast and knew exactly what he was doing . He as kind and very curious .
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Reply from CSI Security 2024.03.04
Hello, Pegi,
Thank you so much for your kind words! I am delighted to hear that you were pleased with David's service. As a top priority, we strive to provide exceptional experiences, and we are motivated by your feedback to exceed your expectations continuously. Looking forward to serving you again soon!
Warm regards,
Al-
Megan Dahlman
Megan Dahlman 2026.01.16
Al and his team are incredible. They are prompt and provide excellent solutions. They are monitoring our business 24/7.
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Reply from CSI Security 2026.01.16
Thank you so much, Megan, for the kind review. We truly appreciate the opportunity to support your post-production company in West Los Angeles. Providing reliable commercial security and fire alarm monitoring is something we take very seriously, and we’re glad to hear​that our team and 24/7 monitoring have met your expectations. Thank you for trusting us—we look forward to continuing to protect your business
Best, Al
Sylvia Perez
Sylvia Perez 2026.01.09
CSI is one of the best always very professional, response to any problem promptly they are just great
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Reply from CSI Security 2026.01.10
Good afternoon, Sylvia,
We genuinely appreciate your business and feedback. Your satisfaction is our top priority, and we are excited to deliver another exceptional experience.
Best, Al
Ira Boren
Ira Boren 2025.12.23
CSI took over a system on a new house that I built in Pacific Palisades. That original system was installed very poorly by another company and constantly malfunctioned. Al and his team at CSI took it over. They went through the house and slowly corrected all of the problems. Unfortunately that house was lost in the fires. I moved into another house that didn't have an alarm. CSI installed a new system there. They don't try to upsell you with things that you don't need. Their pricing is reasonable, their staff is prompt, very pleasant and trustworthy. I highly recommend this company.
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Reply from CSI Security 2025.12.23
Thank you so much, Ira, for taking the time to share this thoughtful review.
We truly appreciate your trust in CSI, especially under such difficult circumstances. It meant a great deal to us to step in, correct the issues with the original system, and later help protect your new home.

Your comments about our team, our approach, and our pricing reflect exactly how we strive to do business—honestly, carefully, and with the client’s best interests first. We’re grateful for your recommendation and for the opportunity to work with you.

Please don’t hesitate to reach out if we can ever be of assistance in the future. Wishing you all the best

Al Radi
Chaim Shaouat
Chaim Shaouat 2025.12.11
Fantastic experience. Oscar did a clean, efficient install and made sure we understood every feature. Super friendly and trustworthy—couldn’t ask for better!
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Reply from CSI Security 2025.12.11
Hi Chaim,

Thank you very much for your wonderful review! We’re delighted to hear that you had a fantastic experience and that Oscar provided the clean and efficient installation you expected. Our team takes pride in ensuring that every customer feels confident with their new system. We truly appreciate your trust in CSI Security, and we’re always here to assist you if you need anything. Thank you once again for choosing us!
Kyrsten Reyes
Kyrsten Reyes 2025.11.26
CSI has been great to work with. Al & his team have been exceptional, very responsive, and always available to help. Highly recommend.
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Reply from CSI Security 2025.11.26
Kyrsten,

Thank you so much for your kind words! We truly appreciate you taking the time to share your experience. It is our mission to be responsive, reliable, and always available when our clients need us. We are grateful for the opportunity to support you, and we are always here if you need anything. Thank you again for your recommendation!

Best regards,
Al Radi
P B
P B 2025.09.12
Geroge and the team did a terrific job walking me through my options for home security, installing the system under tight constraints from my insurance company and were available to help me get the system online.
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Reply from CSI Security 2025.09.12
Thank you for trusting CSI Security with your home security system. We are fortunate to have experienced professionals like George on our team, always available with 24/7 customer support based in Los Angeles to ensure your safety.
Al & the CSI Security Team

Frequently asked questions about CSI Security

How many reviews does CSI Security have?

CSI Security has 107 reviews on Trustindex, collected from Google and Trustindex.

What is CSI Security's average rating?

CSI Security is rated 4.9 out of 5 based on 107 reviews. 96% of reviewers gave five stars.

Are CSI Security reviews verified?

Trustindex moderates every review and verifies that it was collected from a real, active review platform before it is published.

How do I write a review for CSI Security?

Use the "Write a review" button on this page to share your own experience with CSI Security.

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