Complete Commercial Security System Solutions in Los Angeles
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Whatever size your business is, CSI Security offers tailor-made security solutions to meet your specific needs. We pride ourselves on providing only solid, reliable, cost-effective and convenient solutions.
Smart security is smart business
With professionally monitored security, access, energy management and video monitoring solutions, you get peace of mind knowing that your business properties are protected and running smoothly — all from one app.
We've got you covered
Regardless of size or shape, our customized security solutions meet the needs of your business.
Small Business
For small businesses, security means peace of mind. To minimize loss from intrusion, theft and vandalism, we install security systems designed to meet your daily security challenges.
Commercial Business
We take a dedicated approach to implementing top enterprise security focused on intrusion detection, fire protection, video surveillance, access control and monitoring applications.
Multi-Site Business
As a franchise, you have unique security needs. We monitor multiple sites with the convenience of having a single point of contact and streamlined integration of multiple security technologies.
Our business security solutions
Fire Alarm installation
Fire Alarm Monitoring
Remote Video Monitoring
Security System Installation
Security System Monitoring
44+ Years Experience
UL Central Station Monitoring
Commercial Fire Alarm Specialists
Access Control Experts
Remote Video Monitoring
Same-Day Service Available
24/7 Los Angeles-Based Customer Support
44+ Years Experience
UL Central Station Monitoring
Commercial Fire Alarm Specialists
Access Control Experts
Remote Video Monitoring
Same-Day Service Available
24/7 Los Angeles-Based Customer Support
- Testimonials
Trusted by Los Angeles Businesses
Posted on Google jaehee yenTrustindex verifies that the original source of the review is 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.Posted on Google Anastasia KonkinaTrustindex verifies that the original source of the review is Google. CSI customer service is impeccable! Fast response to any problem that might arise.Posted on Google Stuart EsnerTrustindex verifies that the original source of the review is 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.Posted on Google Steven DurbahnTrustindex verifies that the original source of the review is 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 he’ll keep his personable and friendly personality! Thank you so much!Posted on Google terry storchTrustindex verifies that the original source of the review is Google. Very professional. Erix made sure to answer all my questionsPosted on Google Paige LapinskiTrustindex verifies that the original source of the review is 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.Posted on Google Nina SussmanTrustindex verifies that the original source of the review is Google. 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.Posted on Google David GuyetteTrustindex verifies that the original source of the review is Google. Fast response time to fix control panelPosted on Google Allison SampsonTrustindex verifies that the original source of the review is Google. On time Professional PositivePosted on Google Pamela ThompsonTrustindex verifies that the original source of the review is Google. 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.