What level 2 EV chargers involves

Most EV installs are really a load calculation with a charger at the end. The work starts with finding out what is actually there. With level 2 EV chargers, that means looking at the existing wiring, the panel capacity and whatever the last person left behind.

We tell you what we find before we tell you what it costs. If the scope is smaller than you expected, it gets smaller. That happens more often than people assume.

Where this comes up

Level 2 at home, DC fast and fleet charging for business and municipal sites. Most of these calls come from Des Plaines and the surrounding suburbs, but we take them anywhere in our service area.

Commercial spaces change hands and change uses. A storefront becomes an auto shop, an office becomes a gym, and the wiring stays what the first tenant needed. When the new equipment shows up, the old circuits are usually the first thing that has to change.

How we do it

We protect the floors, keep the mess contained and haul out what we remove. The work itself goes in to code, and where a permit applies, it gets pulled and inspected.

Why it usually cannot wait

Electrical problems do not stay the same size. A loose connection heats up, the heat oxidizes the metal, the oxidized metal raises the resistance, and the resistance makes more heat. That loop runs in one direction only and it ends at a scorched box.

If something is tripping, buzzing, warm to the touch or smells like hot plastic, that is the system telling you where the problem is while it is still cheap to fix.

How we quote it

When there is more than one way to do the job, the quote says so. A subpanel or a new service, repair or replace: you see both options priced, with our honest read on which one your building actually needs.

We look before we put a number on anything. The quote is in writing, broken out by item, and it says exactly what we are doing. What you approve is what we do.

Code, permits and inspection

Illinois municipalities adopt the National Electrical Code on their own schedule, which means the rules in one village are not always the rules in the next one over. Permit thresholds differ too. Some places want a permit for a circuit, some only for a service change.

We deal with whichever jurisdiction the job sits in. We pull the permit, we schedule the inspection, and we are there when the inspector walks it. You get the paperwork at the end, which matters when you sell the building or when an insurer asks.

Copper, aluminum and what is in your walls

Aluminum branch wiring went into a lot of houses in the late sixties and early seventies. It is not automatically dangerous, but it expands and contracts more than copper, which loosens terminations over time, and it needs devices and connectors rated for it.

The repair is usually not a full rewire. Proper connectors at every termination, done thoroughly, solves most of it. Anybody quoting you a whole-house rewire on sight has not looked.

The warning signs people ignore

Sparks get noticed. The warnings that get missed are subtler: lights that brighten when something else turns on, a GFCI that will not reset after rain, a smell you cannot place that seems to come from a wall. Each one is a problem that is still small.

Intermittent is not minor. An intermittent connection is usually a loose one, and loose connections are the ones that heat up.

Load calculation comes first

An EV charger is a continuous load, which means the code requires the circuit to be sized at 125 percent of its rating. A 48-amp charger therefore needs a 60-amp circuit, and that has to fit inside what the service can already carry alongside the furnace, range, dryer and air conditioning.

We run the calculation before anything gets ordered. Sometimes the answer is that the panel takes it as-is, sometimes it needs a load management device, and sometimes the service genuinely needs upgrading first. You get the real answer rather than the convenient one.