NAPERVILLE IL COMMERCIAL ELECTRICAL CONTRACTORS

Commercial electrical work vans inside a warehouse If you’re planning a commercial project, you need a reliable, professional commercial electrician — call Reliant Naperville Commercial Electrician. When choosing a commercial electrician, make sure the company is licensed and bonded. Also check the company’s portfolio to ensure they’ve done commercial electrical work similar to your scope.

Commercial Electrician

Naperville businesses and contractors have trusted Reliant Naperville Electrician for commercial work for over 15 years. We know how to work with general contractors and construction crews. Every new commercial service or tenant build-out starts with a full NEC Article 220 load calculation before we size panels and feeders — no guessing. We get the job done on time and on budget. Reliant employs only licensed electricians, trained to follow commercial blueprints and plans. We stand behind our commercial work. Contact us to find out more.

Naperville Commercial Electrical Contractors

Reliant Commercial Electricians of Naperville stand behind their workmanship. We’re dedicated to our commercial clients — that’s what built our reputation. Typical commercial three-phase services are 208Y/120 or 277/480V wye. Legally required emergency and exit lighting is wired under NEC Article 700 — the code requires that no single lamp failure can leave an egress path dark. We complete each job on time and on budget.

Naperville Commercial Electrical Services

We provide quality commercial electrical services to the Naperville area. For offices, retail, and warehouses, LED troffer retrofits cut lighting energy costs up to 60% — up to 80% with dimmers, timers, and occupancy sensors. Lighting runs about 20% of a commercial building’s energy use (DOE). We provide the following commercial electrical services:

Licensed Commercial Electrician Providing Commercial Electrical Services

Aluminum Wiring Replacement
Surge Protection
Electrical Safety Inspections
Panel Upgrades
Home Generators
Lighting
Electrical Wiring
Electrical Repairs
Installation of new electrical Fixtures like lighting
Installation of electrical outlets & switches
Replacing a breaker box
Home rewiring
Home Electrical inspections
Knob & Tub Wiring
Electrical Upgrade for Appliances, Major Electric, Major Gas Appliance, Microwave Oven

Other Electrical Services

Commercial Electrical Services
Office Electrical Services
Municipal Electrical Services
Residential Electrical Services
Pool Electrical Services
Licensed Electrical Services
Solar System Installations
Smart Home Wiring
Home Media Systems

Electrical Panels, Switches, Wiring, & Outlets

Electrical Outlets, Switches, Fixtures – Repair or Installation
Electrical Wiring or Panel Upgrade
Electrical for Home Addition or Remodel & Installation
Solar Panels for Electric System Installation and Repair

Electrical Lighting Design

Interior Lighting Plan & Electrical Design
Holiday Lighting & Event Lighting & Design
Outdoor Lighting, planning, installation, & design

Security & Alarm Electrical Systems

Installation & Repair of Alarm or Security System
Fire Protection & Prevention through Electrical wiring
Surveillance Cameras Installation & Repair

Fan Installation

Overhead Fan Installation
Attic Fan Installation & Repair
Bath Exhaust Fan Installation & Repair
Ceiling Fan installation & Repair

Heating & Thermostats

Electrical Baseboard Installation & Repair
Wall Heater Installation & Repair
Thermostat Installation and Repair

Cables, Networks, & Telephones

Computer Network or Wiring Installation and Repair
Home Theater Installation and Repair
Telephone jacks & system installation and repair

Take a Look at Our Expertise:

240 Volt Dyers, Hot Tubs, Ranges, Ovens & AC Units
Additions
All Electrical Equipment Hookups
Basements
Bathroom & Kitchen Remodeling
Breakers & Fuser Replacements
Cable & Telephone Wiring
Code Violation Corrections
Complete Construction Services
Electrical Panel Upgrades
Electrical Outlets, Switches & Dimmers
Electrical Troubleshooting
Garages
Geothermal Systems
GFCI Receptacle Installations
Green Energy Solutions
Home Maintenance, Maintenance Contracts, Energy Audits, Roofing, Siding, Gutters
Painting, Drywall & General Contracting

We also provide the following:

Inspections
Landscape Lighting
LED Lighting
Light Fixture & Ceiling Fan Installation
Motion Sensors, Photo Cells, Timers & Infrared
New Construction & Remodeling
Recess Can Lighting
Residential New Construction (Gazebos, Sheds, Fences, Flooring, Plumbing, HVAC, Carpentry, Landscaping)
Residential & Commercial Wiring
Retrofits
Service Panel Upgrades
Solar & Wind Energy Systems
Under Cabinet Lighting
Whole House Generators
Whole House Rewiring

Give Us a Call Today

GET YOUR FREE QUOTE NOW

Call or Email us (630) 742-4709

Service Area:

Aurora, Batavia, Bolingbrook, Carol Stream, Downers Grove, Elburn, Elgin, Glen Ellyn, Glendale Heights, Lisle, Lombard, Naperville, North Aurora, Oswego, Plainfield, South Elgin, Warrenville, West Chicagoland, Geneva, St Charles, Wheaton, Winfield, Woodridge, Yorkville

Katelyn Larsen

4 May 2026

Could not have asked for a better experience!! From scheduling to installation - seamless! Dan was great, very knowledgeable, and did a fantastic job. Our home gym, children’s playroom and upstairs hallway are transformed in the best way now that we have recessed lighting! Thank you very much!

Cathie Halpin

3 September 2025

The gentleman found the problem quickly. He even put in my transformer for my doorbell, very professional, very clean. Your service was prompt and the time given you were here. Definitely a win-win with reliant

Karen Ann

29 May 2025

Outdoor outlet dead after 30 years! Contacted Reliant, who gave me pricing up front. Scheduled the appointment which was just days away. The electrician showed up on time and was able to fix it fast. Paid via Zelle, though they offered other fast pay options, as well. Very good experience!!! Check them out, if you need an electrician.

Daniel Zender

30 April 2025

Excellent customer service from Dave reaching out shortly after my call to Dan appearing on time for the appointment and expertly fixing an exterior outlet. Will definitely be my go to company for electrical issues.

Eric D

18 October 2024

Reliant was one of 3 local electricians I reached out to for updating our hot tub wiring. They where easy to get a quote from. One other larger local company took many days just to get a simple quote. The electrican showed up and did a professional, clean job that was inspected and approved by the city. Reliant is my first call for future electrical needs and would highly recommend.

Paul Murphy

2 August 2024

I am selling my house. During the buyer home inspection, buyer wanted a certified electrician to to certify my fuse panel was safe. I also needed a GFCI outlet replaced. Buyer also wanted a quick close. Reliant showed up within two business days to fix. Price was very fair. I will use them again and referred them to my realtor for future business.

Elena Kohel

30 July 2024

I had used Reliant Electrical Services for a couple of times in the last few years. Dave and his team of electricians are dedicated professionals. They installed recessed lighting and some pendant lights in my kitchen. Also took care of new sconces for our bathroom remodel. The team arrived on time and did an excellent job. We highly recommend them.

Nicola Gryson

14 June 2024

Shane did a great job and explained all options really well.

Chris Hacker

10 June 2024

Reliant was a great company to work with. We had a new 240V line installed along with the accompanying EV charger. Dave was super responsive and easy to work with. Karol who performed the installation was very friendly and knowledgeable. The installation was clean and exactly what we discussed.

Lisa Seeman

4 June 2024

We had them install the electrical for our pool. They are very professional and knowledgeable of city codes. They have great customer service. Dave responded to my questions and concerns within a few minutes. He helped me with permit issues and any concerns we had regarding the project. They made the process flawless. Thank you Dave and Karol for such a pleasant experience. Highly recommend!!!