The charger usually arrives before the plan does. Somebody buys an EV, the wall unit shows up in a box, and only then does the question come up: who puts this thing in? A neighbor swears by their electrician. The dealership hands over a flyer for a national installation network. A Facebook group insists you need a company that does nothing but EV chargers.
In most states this is a judgment call. In Illinois, and especially in Naperville, it’s less of one than people think, because a couple of local rules quietly decide the answer for you.
Start with the Illinois rule almost nobody mentions
Illinois requires that electric vehicle charging stations be installed by an installer certified by the Illinois Commerce Commission. Not just any licensed electrician. An ICC-certified one. DuPage County’s own EV guidance spells this out, and it surprises homeowners who assumed their regular electrician could handle it as a side job.
To be fair, the wiring itself is not exotic. A Level 2 charger runs on a 240-volt circuit, usually on a dedicated 40- or 50-amp breaker, the same general territory as an electric range or a dryer. Plenty of general electricians hold the ICC certification and do these installs well. The point is that “licensed electrician” and “certified to install EV chargers in Illinois” are two different boxes, and you want both checked before anyone quotes you a price.
Naperville’s two-utility wrinkle
Here’s the detail that separates people who actually work in Naperville from people who just write about it. Naperville runs its own electric utility. Inside city limits, your power doesn’t come from ComEd at all; it comes from the city’s municipal utility, one of the few in Illinois. Homes with Naperville mailing addresses just outside the city line, and most of the neighboring suburbs like Aurora, Lisle, Warrenville, and Bolingbrook, sit in ComEd territory.
Why does that matter when you’re shopping for an installer? Rebates. The two utilities run completely different programs.
City of Naperville utility customers can apply for a rebate of up to $500 on a Level 2 or Level 3 charger. The catches are specific: the charger has to be hardwired rather than plugged in, the work needs a city building permit, and the install has to pass the city’s electrical inspection before the application goes anywhere. The city has also tied the rebate to participation in its renewable energy program, which is the kind of fine print that’s easy to miss until an application bounces.
ComEd’s program works differently, and in 2026 the timing has mattered a lot. The standard $1,000 residential rebate stopped taking applications at the end of February when funding ran low, while a larger $2,500 rebate for income-qualified customers was still open as of late spring. ComEd adds a twist that makes your choice of installer part of the rebate itself: applications have to be filed by an installer on ComEd’s approved list. Hire someone who isn’t on it and the work can be flawless and fully permitted, and the rebate still dies, because nobody eligible exists to submit it.
So before you compare a single quote, look at your electric bill. City of Naperville utility or ComEd. That one line tells you which program you’re playing for and which credentials your installer needs to have.
Older Naperville homes and the panel problem
House age does more work here than most people expect. North and central Naperville, including the Historic District and the neighborhoods built out through the 60s, 70s, and 80s, still has plenty of homes on 100-amp service. The newer subdivisions on the far south side, out along the 95th Street corridor, mostly went in with 200-amp panels.
On a 200-amp panel, adding a 50-amp EV circuit is usually uneventful. On a 100-amp panel that already feeds central air, an electric dryer, and maybe a hot tub, the new circuit can push the service past what it’s rated to carry. This is why the load calculation matters, and in Naperville it isn’t optional anyway: the city requires a completed Residential Load Calculation Worksheet with the building permit when wiring upgrades are involved. An installer who works here regularly treats that worksheet as step one. An installer who doesn’t may quote you a clean $900 install over the phone, find the panel problem on install day, and come back with a number four times bigger.
That gap is real. Quotes published by a local Naperville installer put a straightforward attached-garage job somewhere between the high hundreds and about $1,500, with panel upgrades pushing totals past $4,000. Neither number is wrong. They’re just different houses.
The questions that sort good from sloppy
Whoever you call, an EV-focused company or the electrician who wired your kitchen, the same short list separates the pros:
Are you licensed in Illinois and insured, and will you show me? No one legitimate hesitates.
Are you ICC-certified to install EV charging stations? Most homeowners have never heard of this requirement, which makes it a useful test of whether the installer has.
If I’m in ComEd territory, are you on ComEd’s approved installer list, and do you file the rebate paperwork? A vague answer here usually means no rebate.
Will you pull the City of Naperville permit and handle the load calculation worksheet? Anyone who offers to skip the permit to save you money is offering to make your problem cheaper for them. Unpermitted work has a way of surfacing when you sell the house, and it gives your insurer an opening to argue after a fire. It also kills the city rebate outright.
Hardwired or plug-in, and why? The city rebate only covers hardwired units, so around here the answer matters more than it would in a ComEd suburb.
What could change the price? Honest answers involve panel capacity, how far the wire has to run, and whether anything existing has to come up to code first. A round, low number with no questions asked usually means the questions arrive later, as change orders.
So who do you actually call?
If your regular electrician is ICC-certified, pulls permits without being asked, and has a few chargers behind them, use your regular electrician. Trust you’ve already built is worth real money.
If you don’t have a go-to, or your house is on the older side, or the rebate paperwork matters to you, a local company that does EV charging every week will save you steps. In the Naperville area, Cob Services LLC is one example worth a look: it’s run by a licensed electrician (Illinois license #26-00032356) who carries the ICC certification, sits on ComEd’s approved EV charger installer list, and folds the permit and rebate filings into the EV charging station installation itself. Whoever you pick, the license, the permit, the load calculation, and the certifications matter more than whether the truck says “EV” on the side.
Quick answers for Naperville homeowners
Do I need a permit to install an EV charger in Naperville?
Yes. The city requires a building permit, a Residential Load Calculation Worksheet when wiring changes are involved, and a final electrical inspection. Skipping the permit risks resale headaches and voids your shot at the city rebate.
Is my house on ComEd or the Naperville utility?
If you’re inside city limits, your electricity comes from the City of Naperville’s own municipal utility. Check the name on your electric bill. It determines which rebate program applies to you and which credentials your installer needs.
How much does installation usually cost around Naperville?
A simple install with the panel near the garage generally lands between the high hundreds and about $1,500. If your panel needs an upgrade, the total can pass $4,000. The house sets the price more than the charger does.
Can my regular electrician legally do it?
Only if they’re ICC-certified for EV charging station installation, which Illinois requires. And if you’re in ComEd territory and want the rebate, they also need to be on ComEd’s approved installer list, because the installer is the one who files the application.
