About DEI Systems

The DEI Systems Offering


DEI Systems is experienced in a number of electrical areas including UPS Systems, Gas and Diesel Power Generation, Lighting Systems, Distribution Systems, and Voice & Data. 


Whether you are planning a new building or simply looking to improve energy efficiency, consider the experience and knowledge DEI Systems has to offer. 

Fire Alarm

In the Fire Alarm division at DEI Systems, they provide extensive support in the area of Fire Alarm installation and testing.


Let DEI Systems focus on your company’s individual security needs to design a customized business security system. 


DEI Systems is fully licensed to perform a wide range of Voice & Data work to meet today’s IT needs. 


DEI Systems can provide a survey and design your existing system to meet your multi tenant power needs.

The DEI Systems Story

DEI Systems LLC is a family owned and managed electrical and low voltage systems integration contractor. Founded in 2004, their approach has always been adaptable to changing markets and technological advancements. The DEI Systems business model is unique. They take a perceived mainstream construction service and distinguish themselves by adding a dynamic approach, which they believe sets them apart from the competition. DEI Systems accomplishes this by having the ability to provide turnkey engineering, design and build services for every system within buildings that require high and low voltage power.

Since inception, DEI Systems has serviced the high tech, commercial, industrial, educational, retail, high-end residential, and professional markets by providing Electrical Construction, Full Service Fire Alarm Testing with UL Certification, and Design Build Services to businesses.

Currently, DEI Systems employs over 70 qualified licensed Electricians, Fire Alarm Technicians, HVAC Controls Installers, Data-Com Technicians, Security Integrators & Registered Apprentices from all over New England. They Design, Furnish, Install, Test and Service the following systems:

  • Electrical
  • Fire Alarm
  • Fire Alarm UL Testing and Inspection
  • Security Card Access, CCTV & Burglary
  • HVAC Systems ATC Wiring for BMS Systems
  • UPS, Generator and Mission Critical Rooms
  • High Voltage
  • Data/Com & Fiber Optic
  • Building Demand and Smart Metering
  • Grounding
  • Lightning Protection
  • Arc Flash Studies & Special Power Studies

From the design and planning stages to final occupancy, DEI systems is an integral part of the project start to finish and beyond. DEI Systems is your one source turnkey electrical and integration systems provider.

DEI Systems Affiliations


Locations Served

Serving the great state of Massachusetts

Job Highlights

Jobs of NoteDEI Systems Jobs (1)

If you are interested in having DEI Systems quote your ASR Threat Alert System, please fill out the form below.

ASR Alert Systems

The ASR Team ASR Threat Alert Systems

Contact DEI Systems

If you are interested in an ASR Threat Alert System in our service area, please fill out this form to connect with us today.  We are eager to help you with the patented ASR technology because SAVING TIME SAVES LIVES.  We look forward to connecting with you right away.  Thank you in advance for your inquiry.