Call Now CCTV Camera Systems Keep an eye on your business 24/7 with advanced DVR/NVR solutions. Request a Free Quote Call Now Burglar Alarm Systems Reliable alarm monitoring with a local Long Island station Request a Free Quote Call Now Fire Alarm Systems NFPA-compliant fire detection and protection systems Request a Free Quote Call Now Access Control
Manage entry with card systems, buzzers, and cloud management Request a Free Quote
Call Now Networking & Cabling Structured cabling (Cat6/7/8, fiber optic, VOIP, AV) with professional rack setup. Request a Free Quote Call Now VOIP Phone Systems Authorized Nextiva dealer, scalable business communication. Request a Free Quote Call Now Sound Systems Fixed-price background music packages for restaurants, retail, and offices. Request a Free Quote Call Now Wifi Access Point Reliable enterprise-grade WiFi access points that ensure fast, secure... Request a Free Quote

CSI Security – The #1 Name in Security & Tech in NY!

At CSI Security, we specialize in CCTV camera systems, alarm systems, access control, fire alarms, networking, VOIP, and sound systems for businesses across Long Island, Queens, Brooklyn, the Bronx, and Manhattan. With over 20 years of experience and a New York State License (#12000376970), we deliver trusted security and technology solutions designed to protect your property, staff, and customers

Our Services

CCTV Camera Systems

Keep an eye on your business 24/7 with advanced DVR/NVR solutions.

Burglar Alarm Systems

Reliable alarm monitoring with a local Long Island station

    Request A Quote




    Fire Alarm Systems

    NFPA-compliant fire detection and protection systems

    Access Control

    Manage entry with card systems, buzzers, and cloud management

    Networking & Cabling

    Structured cabling (Cat6/7/8, fiber optic, VOIP, AV) with professional rack setup.

    VOIP Phone Systems

    Authorized Nextiva dealer, scalable business communication.

    Sound Systems

    Fixed-price background music packages for restaurants, retail, and offices.

    Wifi Access Point

    Reliable enterprise-grade WiFi access points that ensure fast, secure...

    Current Promotions

    Free Alarm System with 8+ CCTV Camera Installation & Monitoring Contract

    Fixed Price Sound System Package Perfect for restaurants, delis, and pharmacies

    Free 2-Hour Service Call for businesses with outdated or non-functioning CCTV systems

    Customer Testimonials

    Licensed & Insured

    CSI proudly serves businesses within a 50-mile radius of ZIP code 11791, covering Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, and the Bronx