Design, Engineering & Support

SI maintains a dedicated customer service team focused on delivering the most reliable, friendly, professional service and support available.


Exceeding client expectations since 1960.

Our reputation and success in our industry is directly linked to the quality of service and support that we provide.  Security Instrument has maintained a controlled growth strategy that has allowed us to consistently provide unparalleled service in the most effective and efficient way possible.

Design & Engineering

With today’s technologies, many security, access control, CCTV, and fire alarm systems demand a tremendous amount of advanced research and high-level planning to provide a system design that will best meet your requirements. It is also essential to employ forward-looking analysis during the initial design phase to contemplate future expansion as well as the long-term service and maintenance requirements.

SI maintains a full service engineered systems group (ESG) consisting of highly experienced and knowledgeable professionals who specialize in the electronic security and fire alarm industry. The team includes NICET certified personnel, system designers, programmers, IT specialists, and CAD operators who are dedicated to delivering a full complement of design services so you can make an informed decision on what is the best solution for your application.

  • System design and CAD services

  • Project Specification creation

  • Network infrastructure design

  • System Integration Design & Implementation

  • Project proposals

  • Project Coordination

  • System Programming

  • As-Built Documentation

  • Technical Data Packages

  • Remote Management Design and Implementation

Installation Services

Our installation team including; coordinators, project managers, and technicians, have tremendous industry experience and are committed to delivering the quality and value added services you would expect when selecting a quality focused organization.

Our staff will interface with owners, construction managers, electrical contractors, engineers, and architects to coordinate your installation and keep your large-scale projects on schedule. We work together with our Technical Resources Department, and Engineered Systems Group,  so we can achieve the successful completion of any sized project.

Service & Support

At Security Instrument we realize that your system’s performance over time is the true benchmark to measure the real value of your investment.

SI maintains a dedicated customer service team focused on delivering the most reliable, friendly, professional service and support available. Combined with our state-of-the-art, UL listed, Factory Mutual Approved central monitoring center, your can rest assured that we are always available when you need us.

As an integral part of our service program, we maintain a comprehensive inventory of  products, which significantly contributes to our ability to complete most required repairs as efficiently as possible.

In addition to our service team, we employ some of the most experienced people in the industry including NICET certified engineers, enabling us to deliver an unsurpassed level of technical depth and support.

We  offer a full complement of support services to serve you better including:

  • GPS dispatched service vehicles

  • Automated service records

  • Remote access control management

  • Service agreements

  • Routine maintenance services

  • Remote programing and diagnostics

  • User operational support

  • Photo ID card badging service

  • Fire alarm inspection & testing

  • Video on demand with off site continuous recording

A Few Of Our Technology Partners

SI integrates hundreds of products from our strategic partners.
The list displayed here is a sample offering.

Protecting what matters since 1960

A few reasons why thousands of comapnies trust Security Instrument…

Comprehensive Services

Security Instrument offers an full line of services from professionally engineered system designs and turnkey installation services, to 24 hour system monitoring.

A 56 Year Track Record Of Success

Founded in 1960, Security Instrument Corporation, a privately held U.S. Corporation, provides electronic security and life safety detection  and associated monitoring and support services.

Large Service Area

Security Instrument is Delaware’s largest full-service independently-owned security company, serving thousands of customers throughout Delaware, MD, NJ & PA.