At B&S, we take a client-first approach. For more than four decades, we have equipped local and national clients with specialized security solutions and outstanding service so they can confidently steer their organizations toward success. Here are a few of our valued clients:

BSISS provides advanced building security system installation in Derry, New Hampshire, serving municipal, commercial, and institutional clients throughout southern NH. As a veteran-owned integrator, we design and install tailored systems that help protect people, property, and infrastructure—whether you’re managing a public facility, operating a small business, or overseeing a growing commercial campus.

From door access control to high-definition surveillance and code-compliant fire protection, BSISS is Derry’s trusted partner for smart, scalable security.

Supporting Safety in the Town of Derry

Located in Rockingham County, Derry is one of New Hampshire’s largest towns by population—home to a vibrant community, bustling schools, and a diverse business environment. From the historic Adams Memorial Building to new retail and medical developments, Derry has both deep roots and forward momentum.

Known for being the birthplace of astronaut Alan Shepard and for its scenic spots like Hood Park and Beaver Lake, Derry blends history with innovation. With new growth comes the increasing need for facility safety, and BSISS helps fill that need with custom-built, future-ready security systems.

Complete Security System Integration in Derry, NH

We specialize in end-to-end system design, installation, and service for a variety of modern building security needs:

Access Control Systems for Offices, Schools, and Town Buildings
Manage who enters your facility and when with keyless access control systems. Our solutions include swipe cards, key fobs, mobile entry apps, and multi-factor authentication—ideal for Derry’s town buildings, healthcare centers, and professional offices.

Security Door Systems & Commercial Locking Hardware
Protect entry points with durable, code-compliant locking systems and reinforced security doors. We install electric strikes, magnetic locks, panic hardware, and ADA-compliant access features.

Intrusion Alarm Systems
Deter unauthorized entry with intrusion detection systems tailored to your property’s layout and risk profile. Options include motion sensors, glass-break detection, monitored alarms, and silent alerts for emergency response.

Surveillance Camera Installation in Derry, NH
Monitor your site in real-time or review footage with cloud-connected and on-site CCTV systems. We install HD cameras with night vision, motion detection, and full system integration for schools, retail stores, and government buildings.

Emergency Lockdown Systems
Help protect staff and students in critical situations with automated lockdown technology. Systems include one-touch activation, door status monitoring, and integration with local authorities for fast response.

Fire Alarm System Installation
BSISS installs NFPA-compliant fire alarm systems, including detectors, strobes, annunciators, and control panels. Whether you’re outfitting a new facility or upgrading an aging system, we’ll ensure your building meets local safety requirements.

Municipal Security Solutions
We’ve worked with towns, public works departments, and first responder agencies across NH to deliver secure, reliable systems that align with procurement guidelines and budget expectations.

Why Derry, NH Chooses BSISS

• Veteran-owned company with real-world security expertise

• Local familiarity with Derry building codes and inspection standards

• Customized solutions for both new construction and retrofits

• Dependable service with long-term system support

• Transparent project estimates—no cookie-cutter sales pitches

Schedule a Site Walk & Free Security Quote in Derry

Need a quote for a fire alarm upgrade? Planning a new facility and want full security infrastructure installed? BSISS is here to help with local knowledge, fast turnaround, and honest recommendations.

Contact BSISS today to schedule your free on-site assessment in Derry, NH. We’ll evaluate your property, recommend a security plan that fits your goals and budget, and guide you through every step—from install to system support.

BSISS also services Londonderry NH and surrounding towns.