Detect Fire Fast — Every Second Counts
While no system can fully prevent a fire from occurring, early detection is the single most critical factor in protecting lives and minimizing property damage. National Defense Systems provides professional fire alarm installation, monitoring, testing, and inspection for commercial and residential properties across Rockland, Westchester, and Orange Counties, and New York City. Whether you manage a multi-story office building, a retail storefront, a house of worship, or a private residence, we make sure your fire detection system is code-compliant, reliable, and ready to alert you as quickly as possible when it matters most.
Our technicians have the experience to work on the full spectrum of fire alarm technology. We service the newest and most advanced addressable systems, which can pinpoint the exact device and location triggering an alarm, as well as older conventional systems that are still in operation throughout the region. Many buildings still rely on legacy fire panels that other companies will not touch — NDS has the expertise to maintain, repair, and upgrade these systems so you stay protected and in compliance without an unnecessary full replacement.
Beyond installation and service, we provide professional 24/7 fire alarm monitoring and the scheduled testing and inspection services required by local fire codes and insurance carriers. Our team handles the paperwork, coordinates with the local fire department, and ensures your system passes inspection. Whatever your fire safety needs are, we have the tools and the track record to meet them.
Capabilities
- Commercial and residential fire alarm installation
- 24/7 professional fire alarm monitoring
- Quarterly, semi-annual, and annual visual inspections
- Scheduled system testing (functional verification of all devices)
- Addressable and conventional system service
- Legacy fire panel troubleshooting and repair
- Smoke, heat, duct, carbon monoxide, and natural gas detection
- Pull stations, horns, strobes, and notification devices
- Alarm reporting via POTS dialer, hardwired network, and cellular
- Fire code compliance and inspection coordination
- System upgrades and technology migration
- Emergency service calls and rapid response
Stay Protected, Stay Compliant
Schedule a fire alarm inspection, get monitoring set up, or talk to us about a new installation. We are here to help with whatever you need.
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