REX’s team of seasoned technicians is on-call 24 hours a day to support and maintain your technology systems.  We understand both the complexity and critical nature of systems such as Access Controls, AV Integrated Systems, and Life Safety systems and are versed in proper maintenance and repair.

Current clients can visit the Technology Service Portal to request service and track progress on open issues.

Our AV Systems Group is regularly called on to assist with repairs and upgrades to video conferencing systems, boardroom presentation and conferencing systems. video walls and displays, huddle room conferencing solutions and intercom, audio and similar systems.

REX Fire Alarm group assist with the turn-up and integration of new devices into existing systems, as well as testing and certification of existing systems.

Our Voice Data group regularly upgrades, tests and certifies data and phone cabling, including Category 5, Cat 6 and fiber optic connections.

Our Security/Access Control group assists with upgrades, additions and maintenance to building access control systems and security/intrusion systems.

Service when you need it.

24-Hour On Call Service

Our service team is dispatched 24-hours a day to respond to your needs. Our fleet of service vehicles is stocked with parts to get you up and running as soon as possible, and our extensive network of suppliers means that even the most complicated repairs can happen quickly and efficiently.

Preventative Maintenance Plans

A major key to systems integrity is regular preventative maintenance. Our team will work with you to develop a customized program for your technology systems to keep them running optimally.

In-House Service Solutions

We offer dedicated in-house technology service and support solutions to a variety of clients throughout the region. Many clients find it convenient to have a dedicated technician as part of their staff to address system maintenance as well as trouble tickets and changes and move requests from end users.

Endorsements from our Clients

We lost a 400 amp feed to a penthouse. Early Saturday morning, (REX personnel) was at the property within 45 minutes of my call. By the time we were powered back up, he had the fuses and main fan coil under control. You have no idea how many headaches I was able to avoid thanks to him.


~ James Brady, Chief Engineer, GlenStar Properties, Chicago, IL

I wanted to take a moment to thank Rex Electric for the excellent job you did.  REX personnel were very responsive to every issue and detail of the project.  And they were excellent with helping to drive the schedule and coordinate with other trades.  As the general contractor, we understand that our success is due to the excellent performance of our major subcontractors on this project.



~ Bryan Kreuger, Vice President, Senior Project Manager, LEED A.P., Chicago, Illinois

(REX personnel) took issues to heart, overcame what seemed to be insurmountable challenges, and saw through them to the end. The degree of coordination, quality of work, and overall good attitude expressed on a daily basis by (REX personnel) made this project a success.


~ Matt Stewart, Senior Associate, Syska Hennessy Group, Los Angeles, CA

Your electricians did an extraordinary job working in coordination with ECI. REX’s ability to provide manpower for the operation, assess the situation and work with us on a recovery plan deserves recognition. Your workforce was highly professional and knowledgeable and your efforts should be applauded!


~ Lee Robinson, Project Superintendent, Executive Construction Inc., Hillside, Illinois