Electrical Panel Upgrade in Toronto: When You Need One and What It Costs

Why Electrical Panel Upgrades Matter in Toronto

Toronto has a large stock of older homes — many built in the 1950s, 60s, and 70s — that were wired for a fraction of the electrical load that modern households demand. The average Canadian home today uses 3–4 times more electricity than it did 50 years ago, driven by larger appliances, home offices, EV chargers, air conditioning, and smart home technology.

If your home still has a 100-amp panel — or worse, a Federal Pacific or Zinsco panel — it may be time for an upgrade.

Signs You Need an Electrical Panel Upgrade

Your Panel Is 100 Amps or Less

Homes built before 1990 often have 100-amp service. While this was adequate for the electrical loads of the era, it's frequently insufficient today. If you're adding an EV charger, a hot tub, central air conditioning, or a basement suite, a 100-amp panel almost certainly won't have the capacity.

Your Breakers Trip Frequently

Breakers are designed to trip when a circuit is overloaded — that's their job. But if breakers trip regularly under normal use, it means your circuits are consistently overloaded. This is a sign that your panel doesn't have enough capacity for your home's electrical demands.

You Have a Federal Pacific or Zinsco Panel

These panels, common in Toronto homes built in the 1960s–1980s, have a documented history of breaker failures. Breakers in these panels can fail to trip during an overload, allowing wiring to overheat and potentially start a fire. If you have one of these panels, replacement is strongly recommended regardless of your current electrical load.

You're Planning a Major Renovation

Adding a basement suite, finishing an attic, building an addition, or doing a major kitchen renovation almost always requires additional electrical capacity. Upgrading the panel at the same time as the renovation is far more cost-effective than doing it separately.

Your Panel Has No Room for New Circuits

If your breaker panel is full with no open slots, you can't add new circuits without either upgrading the panel or installing a sub-panel. For most homes, a full panel upgrade to 200 amps is the better long-term solution.

100-Amp vs. 200-Amp Service: What's the Difference?

100-amp service is the minimum for most residential properties in Ontario. It's sufficient for smaller homes with gas appliances and no high-load electrical equipment.

200-amp service is the current standard for new construction in Ontario and is strongly recommended for:

• Homes with electric heating
• Homes with EV chargers
• Homes with central air conditioning
• Homes with hot tubs or pools
• Homes with basement suites

400-amp service is available for very large homes or homes with multiple high-load systems (e.g., EV chargers + electric heating + pool).

What Does a Panel Upgrade Involve?

A panel upgrade is a full-day job that involves:

1. 1Permit application: New Toronto Electric applies for an ESA permit before work begins
2. 2Utility coordination: Toronto Hydro or Alectra must disconnect the service entrance while work is done
3. 3Panel removal: The old panel is safely removed
4. 4New panel installation: A new 200-amp panel is installed and all circuits reconnected
5. 5Service entrance upgrade: The wiring from the meter to the panel is upgraded if needed
6. 6ESA inspection: An ESA inspector verifies the work before power is restored

The entire process typically takes 6–8 hours. Power is off for most of the day.

How Much Does a Panel Upgrade Cost in Toronto?

Panel upgrades in Toronto typically cost $1,500–$4,000, depending on:

• Panel size (100A, 200A, 400A)
• Whether the service entrance needs upgrading
• Whether the meter base needs replacing
• Permit and utility fees
• Access and complexity

New Toronto Electric provides free written estimates. Call 647-642-0534 to book yours.