Buzzer Door Entry Systems – Allow staff to grant or deny entry with the push of a button.
Access Control Systems in Long Island & NYC – Secure, Smart Entry Solutions
CSI Security designs and installs buzzer entry systems, card/fob access, and cloud-managed access control for offices, retail stores, and pharmacies.
or call (631) 421-2288 to secure your business
with CSI Security.
Access Control Systems for Your Business
Protect your business with modern access control systems installed by CSI Security. From small offices to retail businesses like jewelry stores, pharmacies, and convenience shops, we provide secure entry solutions that let you control who enters your building — and when.
Pharmacies – Ensure compliance and protect controlled substances
Retail & Grocery Stores – Reduce theft, improve employee safety
Jewelry Stores – High-security monitoring for valuable inventory
Restaurants & Quick-Service Chains – Monitor kitchens, and registers
Offices & Warehouses – Secure entrances, loading docks, and workspaces
Why Choose CSI for Access Control?
Cloud-Based Management – Full internet control: add or revoke access from any device, anytime.
Card/Fob Systems – Manage employee and visitor access with cards, key fobs, or mobile credentials.
20+ Years of Experience – Licensed and insured installers serving Nassau, Suffolk, Queens, and NYC.





















Our Access Control Solutions
Buzzer Systems
Ideal for jewelry stores, pharmacies, and offices. Secure entry with staff-controlled buzz-in functionality.
Card & Fob Systems
Professional-grade systems allow employee access via cards, fobs, or smartphones, with customizable permissions.


Internet-Managed Access
Monitor and control your doors online — add new employees, revoke lost credentials, and review activity reports from anywhere.
Integrated Security
Seamless integration with CCTV and alarm systems for a complete security solution.


Repairs & Upgrades
Already have an access control system? CSI provides repairs, reprogramming, and upgrades. We can expand your system, replace outdated hardware, or migrate you to cloud-based management.
Industries We Serve
- Jewelry Stores
- Pharmacies
- Office Buildings
- Restaurants & Retail Shops
- Small Businesses

Customer Testimonials
“CSI Security installed an access control system for our pharmacy. It’s simple, reliable, and we can manage everything online. Highly recommend their service.”
– Local Pharmacy Owner
"CSI installed a 16-camera system for our restaurant. We can check live feeds from our phones anytime. Great service and support!"
– Restaurant Owner, Queens
"After upgrading our cameras with CSI, theft in our retail store dropped by 60%. Highly recommended."
– Retail Store Manager, Long Island
Frequently Asked Questions
Q: Can you install a simple buzzer system for my shop?
Yes. We install buzzer entry systems for retail stores, pharmacies, and small offices.
Q: Do you provide cloud-managed access control?
Yes. Our internet-based systems let you manage entry from any device, anywhere.
Q: Can you integrate access control with CCTV and alarms?
Absolutely. We design complete security packages that link all systems together.
Q: Do you service Nassau and Suffolk counties?
Yes. CSI installs and services access control systems in Nassau County, Suffolk County, Queens, and NYC.
Secure your property with professional access control systems in Long Island & NYC.
Call us now at 631-421-2288