Complete Commercial Security System Solutions in Los Angeles

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.

Our business security solutions

Fire Alarm installation

Fire alarm setup for plants, docks, storage rooms, and machinery.

Fire Alarm Monitoring

Watched fire alerts for yards, lines, cargo bays, and night crews.

Remote Video Monitoring

Live camera views for gates, lanes, fence lines, and blind spots.

Security System Installation

Security builds for hubs, assets, staff paths, and access points.

Security System Monitoring

System watches for doors, panels, routes, alarms, and site alerts.

Alarm Monitoring

Intrusion watch for bays, gates, corridors, inventory, and doors.

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

Trusted by Los Angeles Businesses

Commercial Security, Fire Alarm Monitoring, Access Control & Remote Video Monitoring

    
 
 
       Posted on Google  
   
   jaehee yen 
 
 
 
 Trustindex 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 Konkina 
 
 
 
 Trustindex 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 Esner 
 
 
 
 Trustindex 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 Durbahn 
 
 
 
 Trustindex 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 storch 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very professional. Erix made sure to answer all my questions
  
 
      Posted on Google  
   
   Paige Lapinski 
 
 
 
 Trustindex 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 Sussman 
 
 
 
 Trustindex 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 Guyette 
 
 
 
 Trustindex verifies that the original source of the review is Google. Fast response time to fix control panel
  
 
      Posted on Google  
   
   Allison Sampson 
 
 
 
 Trustindex verifies that the original source of the review is Google. On time
Professional
Positive
  
 
      Posted on Google  
   
   Pamela Thompson 
 
 
 
 Trustindex 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.

Complete Commercial Security System Solutions in Los Angeles

Smart security is smart business

We've got you covered

Small Business

Commercial Business

Multi-Site Business

Our business security solutions

Fire Alarm installation

Fire Alarm Monitoring

Remote Video Monitoring

Security System Installation

Security System Monitoring

Alarm Monitoring

Trusted by Los Angeles Businesses