REX is known as the “go-to” full-service electrical contractor that provides the latest in innovative thinking with nearly a century of experience. Our work is found in landmarks of corporate America, to key elements of the Chicago skyline to everyday city and suburban buildings throughout the region.

We’re dedicated to creating electrical solutions based on your specific project requirements, supported with the on-site know-how to troubleshoot even the most complex installations.

The Full Range of REX Electrical Services include:

•  Electrical Switchgear Installations
•  Industrial Switch and and Riser Feeders
•  Power and Control Wiring
•  Power and Lighting for Commercial and Industrial Projects
•  Mission Critical Data Centers
•  UPS Systems
•  Energy Management Systems

Focus Areas


Rex Electric’s Interior Construction unit is experienced in the needs and requirements of all interior electrical applications. We work closely with designers, architects and general contractors throughout all phases of the project.

New Construction

Rex Electric provides out of the ground construction. While utilizing our pre- construction, the work flow is streamlined from the modeling phase to coordination of delivering materials to installing the electrical framework. Rex’s construction team will review every phase of project design and engage in value engineering and/or analysis from project inception through final completion. Our team will review plans and specifications in search of excessive costs and opportunities for design improvements.

In-house Service and Repair

The service team will work with you to design a customized preventative maintenance program and can help you lower your facility services costs, increase efficiency and improve performance. Whatever your needs, we will provide customized expertise for your type of property. We work with all types of businesses, property managers, building engineers, energy groups, HVAC contractors, and others.

Endorsements from our Clients

(REX personnel)’s attention to detail, customer satisfaction and error free work is something to be proud of. The pressures of the project were extremely high with a short weekend window and multiple trade contractors. Yet, (REX personnel) were very cool, calm and collected. They understand our needs, have excellent communication skills and always live up to our expectations.



~ Dave Mucha, Vice President - Facilities , Federal Home Loan Bank of Chicago

Thank you for the professional staff that I have worked with in the Merchandise Mart.  REX Electric is our choice for professional services and getting the job done.


~ Dee Winger, Resource Market Manager, OFS Brands Chicago, IL.

(REX personnel) made quick and easy work of what basically would have been my worst nightmare.  We are now not only “operational” again at home but actually even better off than we were before. Thank you again for helping out.


~ J. Corbett Marx, Vice President, Midwest Region TRANSWESTERN

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