200 Amp Panel Upgrade — Everything GTA Homeowners Need to Know
If you own an older home in Toronto, Brampton, Mississauga, or anywhere in the GTA, there's a reasonable chance you're still running on a 100-amp electrical panel. For decades, that was fine. But with EV chargers, heat pumps, and smart home systems all drawing significant power, a 200 amp panel upgrade has become one of the most common home improvement projects in Ontario.
Here's everything you need to know before booking yours.
What Is a Panel Upgrade?
An electrical panel upgrade replaces your main breaker panel — the metal box in your basement or utility room with all the circuit breakers — with a new, higher-capacity unit. The most common upgrade in the GTA is from 100 amps to 200 amps.
The panel is where your utility's electrical service enters your home and splits into individual circuits. A 100-amp panel limits total home electrical consumption to 100 amps at 240V, roughly 24 kilowatts. Modern high-consumption homes easily hit that ceiling.
A 200-amp panel doubles your home's electrical capacity. Critically, it also frees up breaker slots for new circuits — like the dedicated 40–60A circuit a Level 2 EV charger needs.
When Do You Need a 200 Amp Panel Upgrade in the GTA?
You're installing an EV charger. This is the most common reason for upgrades in 2025–2026. A Level 2 charger on a 100A panel that's already running multiple high-draw appliances often pushes the panel over capacity.
You're adding a heat pump or air conditioner. Modern heat pumps draw 15–30 amps. If your 100A panel is full, there's nowhere to put the new circuit.
You have a Federal Pacific or Zinsco panel. These brands have well-documented safety issues and should be replaced regardless of amperage.
Breakers trip frequently. Regularly tripped breakers are a sign your panel is under stress and at or near capacity.
You're buying an older home. GTA homes built before 1985 very commonly have 100A panels. If you're buying in established neighbourhoods like Etobicoke, East York, Scarborough, or older parts of Brampton and Mississauga, get a panel assessment before close.
You're planning a major renovation. New kitchens, basement apartments, or whole-home HVAC upgrades often require more panel capacity.
What's Included in a Panel Upgrade?
A complete 100A to 200A panel upgrade in Ontario includes:
- Removal of the old panel and installation of a new 200A main breaker panel
- Transfer of existing circuits to the new panel — all your existing breakers are reconnected
- ESA permit pulled before work starts
- Utility notification and coordination — in most GTA municipalities, the utility (Toronto Hydro, Alectra, Hydro One) must upgrade the service entrance at the same time
- ESA inspection after the work is complete
- New breaker slots for future circuits like your EV charger
In most cases, the utility's portion (upgrading the line from the street to your meter) is done at no cost to you — it's coordinated by your electrician.
How Much Does a 200 Amp Panel Upgrade Cost in Toronto and the GTA?
Straightforward upgrade (interior only, utility co-operative): $1,500 – $2,500
- Standard box-swap in accessible location
- Utility upgrades service entrance at no cost
- Includes permit and ESA inspection
Mid-complexity (service entrance work, older home): $2,500 – $3,500
- Older home requiring updated service entrance weatherhead, mast, or meter base
- May include updated grounding
Complex upgrade (knob-and-tube, service relocation): $3,500 – $5,500
- Old wiring present that must be addressed
- Panel relocation required
- Full utility coordination
Most Toronto and GTA homeowners in standard 1960s–1990s homes pay between $2,000 and $3,500 all-in.
How Long Does a 200 Amp Panel Upgrade Take?
The electrical work itself typically takes 4–8 hours. Power is off to your home during this period. Your electrician will notify you of the expected outage window — in most cases, power is restored by end of day.
Utility coordination timing can add time to the overall project timeline. After your electrician submits the permit and notifies the utility, the utility typically schedules their portion within 1–4 weeks. Your electrician can advise on current lead times in your area.
Ontario Rebates and Incentives for Panel Upgrades
Panel upgrades don't have dedicated rebates like EV chargers, but the Canada Greener Homes Loan (zero-interest, up to $40,000) covers panel upgrades as part of a home energy retrofit when combined with qualifying improvements like EV charger installation or heat pumps.
Some utility programs also include panel upgrade costs when the upgrade is directly enabling a qualifying installation. Ask your installer about current program eligibility.
Frequently Asked Questions
Can I add an EV charger directly after a panel upgrade? Yes — that's the most common scenario. Many customers book a panel upgrade and EV charger installation together on the same day or same week.
Do I need to be home during the upgrade? Yes. You'll need to provide access to the panel, and power will be off during the work. Arrange to work from home or be present for the day.
Can I keep my existing breakers? Some can be transferred; others may need to be replaced if they're incompatible with the new panel brand. Your electrician will advise.
How do I know if my panel is 100A or 200A? Look at the main breaker at the top of the panel — it will say "100A" or "200A." You can also check your utility bill or call your utility company.
Will the upgrade affect my home insurance? Positively, typically. Most home insurers view a panel upgrade as a safety improvement and may adjust your premiums accordingly. An unpermitted installation, however, can create insurance problems — always get the ESA permit.
The Bottom Line — One Upgrade That Pays Off for Decades
A 200-amp panel upgrade is one of the highest-ROI electrical improvements you can make to a GTA home. It enables EV charging, heat pumps, air conditioning, and whatever the next decade's technology requires — all from a single day's work.
If you're upgrading for an EV charger, we can often schedule both jobs in the same week. Get a free quote at EVPowerUpgrade.ca — we serve Toronto and all of the GTA with licensed, permitted panel upgrades and EV charger installations.