Every Box Checked. Except the One Behind That Gray Door.

You tune up the furnace every fall. You get the oil changed on schedule. You see the dentist twice a year even when you’d rather not. The gutters got cleaned last October. The water heater? Checked.

You’re the kind of homeowner who stays on top of things. And that’s exactly why this might catch you off guard.

When’s the last time someone looked inside your electrical panel?

For most homeowners, the honest answer is never. Not once. The panel has been sitting behind that little gray door in the basement for twenty or thirty years, quietly doing its job, and nobody with any real electrical knowledge has ever opened it up and taken a look.

That’s the gap. And it’s a surprisingly easy one to close.

Your Electrical Panel Powers Your Entire Home. Has It Ever Been Inspected?

Think about what runs through that panel. Your morning coffee. The kids’ nightlights. The air conditioner on the first genuinely hot day of the summer. Your home office. The refrigerator, the washer, the dryer, the TV, the router. Every single thing that uses electricity in your house flows through that box.

And yet it’s probably the only major system in your home that’s never been professionally inspected. For most homeowners, a routine home electrical safety check simply never made it onto the list.

Out of sight, out of mind. And because it hasn’t caused any obvious problems, it’s easy to assume everything is fine.

Maybe it is. But wouldn’t it be nice to actually know?

What Does an Electrical Panel Inspection Include?

This isn’t a vague “we looked at it and it seemed okay” kind of visit. A Cardinal electrician does a thorough inspection that covers the things that actually matter:

Visual and thermal inspection of the panel itself

Verification that breakers are the right brand and properly sized for your home per National Electrical Code standards

Inspection of all connections for tightness and proper operation

Assessment for any corrosion or moisture-related issues

The thermal piece is worth mentioning specifically. A thermal camera can detect heat signatures that aren’t visible to the naked eye, things like connections that are running warmer than they should be. It’s a level of detail you simply can’t get from a visual check alone.

At the end of the visit, you’ll know what’s in there. Good news or news you needed to hear, either way you walk away with something you didn’t have before: a real answer.

When Should You Schedule an Electrical Panel Inspection?

Before the air conditioners kick on. Before summer electrical loads start stressing an aging system. Before your schedule gets slammed with everything else the warmer months bring.

Spring is genuinely the smart window for an electrical inspection. Demand on your system is lower, scheduling is easier, and if anything does need attention, you’ll have time to address it before summer arrives and your electrical usage climbs.

It’s the same logic as a furnace tune-up in the fall. Get ahead of it before the system is working hardest.

Common Questions About Electrical Panel Inspections

What happens during an electrical panel inspection?

A Cardinal electrician opens the panel and does a thorough look at what’s actually in there. That includes a visual and thermal inspection of the panel itself, checking that breakers are the right brand and properly sized for your home, inspecting all connections for tightness, and looking for any signs of corrosion or moisture. The thermal camera piece is worth noting because it can detect heat signatures that a visual check alone would miss. The whole thing is straightforward and unhurried.

How long does an inspection take?

Most panel inspections can be completed in about an hour. It’s not a major disruption to your day.

How often should an electrical panel be inspected?

A good rule of thumb is every three to five years for newer panels and every two to three years for a panel twenty years or older. Or any time something changes in your home. Adding a major appliance, finishing a basement, installing an EV charger, or buying a home that hasn’t had one done recently are all good reasons to get an inspection scheduled sooner rather than later.

What if the inspection finds something wrong?

That’s actually the best possible outcome of finding something early. If there’s an issue, your electrician will explain what it is, what it means, and what your options are. No pressure, no manufactured urgency. You’ll have real information to make a real decision. And if everything looks fine, you’ll know that too, which is worth something on its own.

Is $99 the total cost or just a diagnostic fee?

The $99 is the inspection fee, not a diagnostic charge that gets rolled into a larger bill. You pay $99, you get a full inspection, and you get answers. If anything needs follow-up work, that would be a separate conversation with a separate estimate.

Through May 1, 2026, Cardinal is offering a full electrical panel inspection for $99, that’s $50 off the regular price of $149. One visit, one thorough inspection, real answers from a licensed electrician who’s been serving Sun Prairie and Dane County since 1984.

If you’ve been meaning to get your home electrical system checked out, this is a pretty low-friction way to do it. Book online or give us a call and we’ll take care of the rest.