Los Angeles Fire Alarm Systems & Monitoring
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- Los Angeles Fire Protection
24/7 Monitoring, Inspections & Systems – CSI Security
Core Fire & Life Safety Services
- Fire Alarm System Installation & Design – Engineered systems with CAD submittals, AHJ coordination, and permit assistance.
- Fire Alarm Monitoring – UL Central Station monitoring with redundant receivers and cellular monitoring.
- Fire Sprinkler Monitoring & Waterflow Monitoring – Supervised waterflow / tamper per NFPA 72 and Los Angeles Fire Code.
- Elevator Phone Monitoring & Area of Refuge/Rescue – 24/7 communications for multi-story and ADA-required occupancies.
- Fire Alarm Testing, Repair & Maintenance – Annual/semi-annual/quarterly testing; certifications, repairs, and emergency service.
- Engineered Fire Alarm Plans & Submittals – Plan check packages for LAFD, LA County Fire, and city building departments.
- UL Central Station Monitoring – Local, 24/7 operators in Los Angeles with rapid dispatch and verification.
Industries & Facilities We Protect
Industrial & manufacturing facilities
Warehouses & logistics hubs
Commercial buildings & offices
Healthcare, education & institutiona
Government & municipal properties
























What We Do
01
Fire Alarm Systems
Design/build, retrofits, device adds, tenant improvements, testing, and maintenance.
02
24/7 Alarm Monitoring
Fast signal processing with redundant connectivity and immediate dispatch to first responders.
03
Fire Sprinklers
Wet, dry, pre-action, and deluge systems; hydrostatic testing; repairs; tenant tie-ins.
04
Special Hazard & Clean Agent Suppression
Server rooms, labs, archives, and high-value assets.
05
Kitchen Hood Suppression
Design, installation, UL 300 compliance, semi-annual inspections, and recharges.
06
Licensed & Experienced
Our team is trained and certified to provide the best protection.
07
Portable Fire Extinguishers
Sales, placement plans, annual tags, 6-year maintenance, and hydro-tests.
08
Elevator Recall Integration
Smoke control logic, recall testing, and documentation.
09
Fire Protection Inspections
Quarterly, semi-annual, and annual testing with digital reports and deficiency lists.
Sectors We Serve
- Multifamily & Mixed-Use (mid-rise/high-rise, podium)
- Commercial & Office (core/shell, TI, campuses)
- Hospitality & Restaurants (kitchen suppression, egress)
- Industrial & Warehousing (sprinkler density upgrades, ESFR)
- Healthcare & Labs (clean agent, smoke control)
- Education & Assembly (mass notification, evacuation)
Service Areas
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.
Home Security Systems
Commercial Security Systems
Alarm Installation
24/7 Alarm Monitoring
Fire & Burglar Alarm Systems
Smart Alarm Integration
Home Security Systems
Commercial Security Systems
Alarm Installation
24/7 Alarm Monitoring
Fire & Burglar Alarm Systems
Smart Alarm Integration