Electrical Panel Upgrade in Hamilton: Cost, Signs & Permits

By Zvonko Lipovac, Master Electrician, Apollo Electric Inc. · ECRA/ESA 7009372 · Last updated: 22 September 2026

Your electrical panel is the point where power from the street splits out to every circuit in the house. When it is undersized, corroded, or built around fuses instead of breakers, it becomes the bottleneck that trips the rest of your home. An electrical panel upgrade in Hamilton replaces that bottleneck with a properly sized 200 amp service, so you can add a heat pump, an EV charger, a hot tub or a finished basement without living in the dark every time two appliances run at once.

Apollo Electric has changed panels and services across Hamilton, Dundas, Ancaster, Stoney Creek and Burlington for over 30 years, as a licensed ACP electrical contractor under ECRA/ESA licence 7009372. This page explains when an upgrade is actually needed, what it costs here, and exactly what the permit and inspection involve, so nothing on upgrade day surprises you.

7 Signs You Need an Electrical Panel Upgrade in Hamilton

One of these on its own is worth a phone call. Two or more together usually means the panel, not the appliance, is the problem.

If any of these sound like your home, call the panel upgrade line at 905-921-5487 and describe what you are seeing. If a smaller repair will do, an honest electrician will tell you that on the phone rather than sell you a full service change you do not need. Not sure whether the breaker itself is the issue? Our guide on a partial power outage in Hamilton walks through the quick checks first.

100 Amp vs 200 Amp: What You Actually Need

Service size is measured in amps, the amount of current the utility can deliver to your main breaker. Most Hamilton homes built before the 1990s came with 60 or 100 amp service. That was plenty when heating was gas and the biggest load was a stove. It is tight today.

The honest answer is that a 200 amp service is the right target for the large majority of Hamilton homes, because it covers the electrification most owners add over the next ten years, and the cost gap over a 100 amp panel is small once the crew is already on site. Where an official load calculation is needed, for example to satisfy ESA when you add an EV circuit, Apollo Electric does that calculation as part of the quote.

What an Electrical Panel Upgrade Costs in Hamilton

Every home is different, so treat these as typical ranges rather than a quote. The final number depends on how far the meter is from the panel, the condition of the service mast and grounding, and whether the utility needs to change the connection at the street.

What moves the price up is almost always the extras a bare “panel” price hides: a rusted service mast that has to be replaced, grounding and bonding brought up to current code, or aluminum branch wiring that needs attention at the panel. A written quote from a licensed contractor should name these before work starts. Apollo Electric quotes the full job, permit and inspection included, with no line items added after the fact.

Permit, ESA Inspection and the Alectra Disconnect

A panel or service upgrade is notifiable work in Ontario. It cannot legally be done without an Electrical Safety Authority permit, and that is a good thing, because the inspection is what protects you and your insurer. Here is who does what.

Keep the Certificate of Inspection. It is what your insurer, and a future buyer’s home inspector, will ask for. Work done without a permit is the single most common reason a panel “upgrade” causes trouble at resale.

What to Expect on Upgrade Day

A straightforward 200 amp upgrade is usually a one-day job. A typical sequence looks like this:

1. Arrival and disconnect. The crew confirms the plan, and the utility disconnect is coordinated so the service can be worked on safely.
2. Out with the old. The old panel or fuse box comes out, along with any failed mast or meter base.
3. New service in. The 200 amp panel, main breaker, grounding and bonding go in, and every circuit is transferred and labelled.
4. Reconnect and test. Power is restored with the utility, and every circuit is tested under load.
5. ESA inspection. The inspector signs off, and you get the Certificate of Inspection.

You will be without power for part of the day, so plan around anything that must stay running, such as a home office or a medical device, and mention it when you book so the crew can sequence the work around it.

Fuse Box to Breaker Panel Replacement

If you still have a fuse box, an upgrade does two things at once: it removes the insurance headache, and it replaces a system where the wrong fuse size can quietly defeat the whole protection scheme. Breakers cannot be “over-fused” the way a fuse holder can be fitted with a penny or an oversized fuse.

For most fused Hamilton homes, the sensible move is a full 100 to 200 amp service change rather than a like-for-like swap, because the labour to open the service is the same either way. See our electrical safety page for how a modern panel reduces fire and shock risk, or read about a breaker that keeps tripping to tell a nuisance trip from a real fault.

Frequently Asked Questions

How much does an electrical panel upgrade cost in Hamilton?

Most residential panel upgrades in Hamilton run about $2,000 to $4,000, including the panel, labour and ESA permit. A same-amperage panel swap can be less, while a service upgrade that needs a new mast, meter base or grounding can be more. A free on-site quote from a licensed contractor is the only way to get an exact figure. Call Apollo Electric at 905-921-5487.

Do I need a permit to upgrade my electrical panel in Ontario?

Yes. A panel or service upgrade is notifiable work, so an Electrical Safety Authority permit and inspection are required by law. Your licensed contractor files the notification and arranges the inspection. You should never upgrade a panel without a permit, because the Certificate of Inspection is what protects you at insurance and resale.

How long does a panel upgrade take?

A standard 100 to 200 amp upgrade is usually completed in a single day. The power is off for part of that day while the utility disconnect is coordinated and the new service is installed and tested. More involved jobs with a new service mast or grounding can run longer.

Should I go with 100 amp or 200 amp?

For most Hamilton homes, 200 amp is the right choice. It handles central AC, an EV charger, a heat pump, a hot tub and a finished basement together, and the cost difference over a 100 amp panel is small once the service is already open. If you are adding an EV or electric heat, ESA will often want a load calculation, which usually points to 200 amp.

Will a panel upgrade fix my insurance problem?

Usually, yes. Most Ontario insurers surcharge or decline coverage on a 60 amp service or a fuse box. Replacing it with a modern 200 amp breaker panel, with a Certificate of Inspection from ESA, is what insurers ask for. Keep that certificate on file.

Can I upgrade the panel myself?

No. Panel and service work in Ontario must be done by a licensed electrical contractor, both for safety and because the utility will only reconnect a service that a licensed contractor has installed and ESA has inspected. It is one of the few electrical jobs where doing it yourself is not legal.

References

• Electrical Safety Authority, Ontario’s electrical safety regulator, on permits and inspections.
• ESA, finding the right contractor, on licensing and the Authorized Contractor Program.
• Alectra Utilities, the local distributor that coordinates service disconnects and reconnects.