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 Voice and Data, Access Controls, Security Systems, and Life Safety systems. REX is well versed in proper installations, upgrades, maintenance and repairs.

+Technology Sales and Service

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, Coax, 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.

Design-Build Services

As an RCDD-certified contractor, we deliver turnkey design-build solutions for essential building technologies, including voice and data networks, security systems, and card access control. Our team partners with you from concept through installation, providing customized, scalable systems that enhance connectivity, safety, and operational efficiency. By integrating design and construction under one roof, we streamline project timelines, reduce costs, and ensure seamless implementation tailored to your building’s unique needs.

Riser Management Solutions

Our Riser Management service ensures organized, secure, and efficient cabling infrastructure throughout your building. We provide comprehensive oversight of vertical risers, including installation, labeling, documentation, and ongoing maintenance. By managing connectivity between floors and critical systems, we help prevent downtime, reduce risk, and maintain compliance with industry standards—keeping your building’s technology backbone reliable and future-ready.

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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