What preventive maintenance involves

Three-phase work is its own discipline. The work starts with finding out what is actually there. With preventive maintenance, that means looking at the existing wiring, the panel capacity and whatever the last person left behind.

Most of the time the job is smaller than the worst case people read about online. We find the actual fault, fix that, and leave the parts of the system that are working alone.

Where this comes up

Motor controls, machinery wiring, 480V systems and plant distribution. Most of these calls come from Des Plaines and the surrounding suburbs, but we take them anywhere in our service area.

A home sale is often when this surfaces. An inspector flags aluminum branch wiring, a fuse box or a panel with doubled-up breakers, and suddenly there is a deadline. We can tell you which items are urgent and which are only noted.

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

We look before we price. That means somebody comes out, opens the panel, checks what the service can carry and finds out what is actually behind the wall. Quoting a job like this over the phone produces a number that changes, and a number that changes is worse than no number.

We quote from what we have actually seen on site. You get it in writing with each item spelled out, and the final bill lines up with it.

Code, permits and inspection

Schools, municipal buildings and other public facilities often carry requirements beyond the local electrical code, from the owner’s own standards to bid documents spelling out exactly how work is done. We read those first and build the job to whichever rule is stricter.

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.

Grounding and bonding

Grounding is the part nobody sees and the part that decides whether a fault clears safely. The ground path has to be continuous and low-impedance from every device back to the service, and the neutral and ground can only be bonded together in one place.

A neutral bonded to ground in a subpanel is one of the most common defects we find. It works right up until it does not, and then it puts current on metal that people touch.

What to do before we arrive

Whole house dark? Check whether the neighbors still have lights. If the street is out, that is a ComEd call, not ours. If it is only your building, leave the main off if you already shut it and wait for us.

Note what was running when it happened and whether it has happened before. That usually cuts the diagnostic time in half.