Responsive Support – Fast service, local team, and 20+ years of life safety experience.
Commercial Fire Alarm Systems in Long Island & NYC – Code-Compliant Protection for Your Business
CSI Security provides design, installation, and service of commercial fire alarm systems for restaurants, retail stores, offices, and industrial facilities across Nassau County, Suffolk County, and New York City.
or call (631) 421-2288 to secure your business
with CSI Security.
Fire Alarm Systems for Your Business
At CSI Security Systems, we specialize in fire alarm system installation and service in Long Island and NYC. Our solutions are designed to meet NFPA 72 standards and local code requirements, helping businesses protect lives and property while securing fire marshal approval. Whether you’re opening a new restaurant, upgrading an outdated system, or expanding your facility, CSI provides expert fire alarm services from start to finish.
Why Choose CSI for Fire Alarm Systems?
Licensed & Insured – Certified New York State installer for commercial fire alarms.
Local Fire Marshal Expertise – We design and submit plans for Nassau and Suffolk County approvals.
End-to-End Service – From plan review and permits to installation, inspection, and ongoing maintenance.
Our Fire Alarm Services
Fire Alarm System Design & Engineering
We work with architects and engineers to create detailed fire alarm drawings, device schedules, and load calculations that meet code.
Installation & Setup
Our technicians install panels, detectors, pull stations, strobes, and all cabling with precision and compliance in mind.
Testing & Inspections
We prepare systems for fire marshal inspections and handle NFPA-required acceptance tests.
Maintenance & Repairs
CSI offers scheduled maintenance, system repairs, and emergency service calls to keep your system running reliably.
Industries We Serve
- Restaurants & Cafés (new builds & remodels)
- Retail Stores & Pharmacies
- Offices & Professional Buildings
- Warehouses & Industrial Facilities
Customer Testimonials
Frequently Asked Questions
Q: Do you handle fire marshal plan submissions?
Yes. We prepare and submit all documentation for approval in Nassau and Suffolk counties.
Q: Can you service my existing fire alarm system?
Yes. We repair and maintain FireLink, Firewolf, and many other commercial panels.
Q: What standards do your fire alarm installations meet?
All systems are designed to comply with NFPA 72 and local code requirements.
Q: Do you offer ongoing service contracts?
Yes. We provide scheduled inspections, testing, and emergency service contracts.
Protect your business with trusted Fire Alarm installation and service in Long Island & NYC.
Call us now at 631-421-2288
