Voice and Data

Welcome to Mercury’s Electrical Division. Our electrical services center around providing products, repair, and installation for the communications industry. We specialize in ultra clean, low cost, and backup reliable electrical power, for data centers, labs, server rooms, and many other critical areas.

During the late 70's Mercury's Security division acquired our knowledge and experience in security systems by working on Nuclear Power plants around the country. Many of the products we use today came from our designs for the demanding needs of this industry. We pride ourselves on providing only top quality, fully tested, and proven products along with experienced and licensed technicians.

In 1978, Mercury’s Voice and Data Cabling division installed the first IBM local area network in CT. Since then, we have installed hundreds of networks and many miles of cabling. We service all of CT. When requested, we will go anywhere in the US. There is no project too small or too large. Each project gets the attention and design needed for years of care-free operation.


"The difficult we do immediately-

the impossible takes a little longer."

At The Mercury Group, we simply believe in getting a job done right – no matter the size!


The Mercury Group is a "General Contractor of Communications." Our three divisions, Security, Electrical, and Voice and Data can provide: Clean Power, Proper Grounding and Bonding, UPS systems, Generators, Electrical Efficiency Lighting, Security Systems & Structured Cabling for Voice and Data Systems.


Since 1978, we have served our Connecticut clients, and from their requests developed our three divisons. Our three divisions combined have over 143 years of industry experience.


Also, The Mercury Group holds a number of state contracts, which serve to simplify your purchase process. Please click here for more information on our State Contracts.


We also have a long list of projects and references for your review per request. Simply, send us an email or give us a call for more information.


We offer full warranties and we will service all of our systems and equipment with our own technicians; usually within one business day. Our low cost diagnostic service plan can't be beat and keeps your budget intact. Give us a call at- 203.378.9008 or send us an email for more information.


We are CT's General Contractor of Communications, Electrical Efficiency Lighting, Security Systems Installation & Design, & Wiring for Voice & Data Systems.