The table below outlines typical price ranges for the most common panel upgrade scenarios in Ontario. These are real-world estimates based on standard residential installations — not lowball figures designed to get you on the phone, and not worst-case numbers meant to shock you.

100A to 200A Panel Upgrade (Standard Home)

Typical Price Range: $2,500 – $4,500

Best For: Older homes switching to modern appliances, adding a first EV charger or heat pump

What Is Included: New 200A panel, circuit transfer, dedicated circuits, ESA permit and inspection, utility coordination

200A Panel Replacement (Panel Swap — Same Capacity)

Typical Price Range: $1,800 – $3,200

Best For: Homes with an older 200A panel that needs replacing due to age, brand recall, or damage

What Is Included: Like-for-like panel replacement, circuit transfer, ESA permit and inspection

200A Upgrade With Battery Storage Integration

Typical Price Range: $4,500 – $8,000 (panel and integration labour only — battery unit priced separately)

Best For: Homeowners adding a home battery backup system such as a Tesla Powerwall or Franklin aPower

What Is Included: New 200A panel, critical load sub-panel or transfer switch, battery interconnection wiring, ESA permit and inspection

400A Panel Upgrade (Large Homes / Full Electrification)

Typical Price Range: $6,000 – $12,000+

Best For: Large homes, multi-unit properties, or homeowners running solar, battery storage, multiple EVs, and whole-home heat pumps simultaneously

What Is Included: 400A service upgrade including meter base, new panel, circuit redistribution, ESA permit and inspection, utility upgrade coordination

All prices above are estimates for labour and materials under standard installation conditions. Your specific quote from Constant Home Comfort will reflect your home's actual configuration, local utility requirements, and any additional work identified during the assessment.

Understanding why panel upgrade prices vary helps you evaluate quotes critically and avoid paying for work you do not need — or, just as importantly, avoid hiring a low-bid contractor who cuts corners on permits and inspections.

Panel Amperage

The single biggest factor in price is the amperage of the new panel. Moving from 100A to 200A is a standard upgrade. Moving to 400A involves a more significant change to your service entry, meter base, and often the underground or overhead service cable between your home and the utility connection — all of which adds cost.

Condition of Existing Wiring

Homes built before 1980 sometimes have aluminum branch-circuit wiring or knob-and-tube wiring that needs to be addressed during a panel upgrade. If any circuits need to be replaced or remediated, this will be reflected in your quote. Constant Home Comfort will always identify these issues upfront rather than surface them as surprise add-ons mid-project.

Utility Service Upgrade Requirements

In some cases, your local utility — Hydro One, Toronto Hydro, Alectra, or another Ontario provider — may require an upgrade to your service entry cable or meter base as part of the panel upgrade. This is especially common for 400A upgrades. The utility's own work is handled separately and may involve additional fees from the utility company, which we will flag in your assessment.

Battery and EV Charger Integration

Adding battery storage or an EV charger to a panel upgrade project increases the scope of work — additional circuits need to be run, a critical load sub-panel or transfer switch is often required for battery backup, and the interconnection wiring between the battery, inverter, and panel must meet specific code requirements. This adds cost, but it also adds significant value, particularly when paired with available Ontario rebates.

Permit and Inspection Fees

Every electrical panel upgrade in Ontario requires an ESA permit and a mandatory inspection. These fees are non-negotiable and are included in every Constant Home Comfort quote. If a contractor quotes you a price that does not include permits, that is a serious red flag — uninspected electrical work voids your home insurance and creates liability that follows the property indefinitely.

Geographic Location Within Ontario

Labour rates vary slightly across Ontario. Urban markets like Toronto and Mississauga tend to reflect higher labour costs than smaller communities in Barrie or London. Travel time for remote locations can also affect pricing. Constant Home Comfort services communities across the province and provides location-specific quotes so there are no surprises.

Choosing the right panel size upfront saves you from having to upgrade again in three to five years as your home's electrical load grows. Here is a straightforward guide:

100A Panel — Adequate Only If:

• Your home is small (under 1,200 sq ft)
• You are not planning to add an EV charger, heat pump, or battery storage
• You have gas appliances for cooking, heating, and water heating

200A Panel — Recommended For:

• Most Ontario homes in the 1,200 – 3,500 sq ft range
• Homeowners adding one EV charger, a heat pump, or a home battery
• Properties transitioning from gas to electric appliances over the next five to ten years

400A Panel — Recommended For:

• Large homes over 3,500 sq ft with high electrical demand
• Properties running solar arrays with battery storage and multiple EVs
• Multi-unit residential properties or homes with a secondary dwelling unit (SDU)
• Homeowners who want to future-proof their electrical system completely

If you are unsure which panel size is right for your home, Constant Home Comfort will complete a load calculation during your free assessment and give you a clear, honest recommendation — not the most expensive option by default.

The prices listed above represent full retail cost before rebates. For many Ontario homeowners, available provincial and federal incentive programs can significantly reduce the net cost of an electrical panel upgrade — particularly when the upgrade is done as part of a larger home electrification project.

Programs that may offset your panel upgrade costs include:

• Canada Greener Homes Grant: Up to $5,600 for qualifying energy efficiency upgrades including heat pump installations that require panel upgrades
• Ontario Home Renovation Savings Program: Rebates through Enbridge Gas and Save on Energy for qualifying electrification projects
• Canada Infrastructure Bank / CMHC Programs: Low-interest financing and direct grants for deep home retrofits
• Utility Rebate Programs: Toronto Hydro, Hydro One, and Alectra periodically offer rebates for panel upgrades tied to EV charger or smart home installations

Ontario homeowners have accessed up to $12,000 in combined rebates through multiple stacked programs. Constant Home Comfort helps you identify and apply for every rebate you qualify for — and since most programs are first-come, first-served with limited annual funding, booking your assessment sooner rather than later protects your place in the queue.

When you compare quotes for an electrical panel upgrade, you will likely encounter a wide range of prices. Understanding what is — and is not — included in each quote is the only way to make a true apples-to-apples comparison. Here is what every Constant Home Comfort panel upgrade quote includes, as standard:

• Licensed and insured electricians for all installation work
• ESA permit application and all associated fees
• Coordination with your local utility for disconnect and reconnect
• On-site presence during the ESA inspection
• Full circuit labeling and documentation for your records
• Rebate application assistance at no additional charge
• 0% financing options so that upfront cost is never the barrier to getting the work done

Lower-priced quotes from unlicensed or less reputable contractors often exclude the ESA permit, outsource the inspection coordination, or use substandard materials that fail inspection and require costly rework. A permit-free panel upgrade is not just a code violation — it is an insurance liability and a problem that will surface when you sell your home.

Constant Home Comfort offers 0% financing plans on electrical panel upgrades, making it possible to complete your upgrade now — capturing available rebates and starting to benefit from lower electricity costs immediately — without paying the full amount upfront. Our financing team will walk you through the available plans during your assessment.

For homeowners bundling a panel upgrade with a battery storage system, solar installation, or EV charger, financing the combined project often makes strong economic sense: the monthly savings on electricity and fuel costs can offset or exceed the monthly financing payment, meaning the upgrade can effectively pay for itself from day one.

How much does a 200 amp panel upgrade cost in Toronto?

In Toronto and the GTA, a 100A to 200A panel upgrade typically ranges from $2,500 to $4,500 for a standard residential installation with permits and inspection included. Homes with older wiring or those adding battery or EV integration will be toward the higher end of the range.

Why are some panel upgrade quotes much cheaper than others?

The most common reason for a significantly lower quote is that the contractor is not pulling permits, is not using licensed electricians, or is excluding the ESA inspection. These are not optional cost savings — they are code violations that can void your home insurance, delay a future home sale, and create safety hazards. Always ask for an itemized quote and confirm that permits and ESA inspection are included.

Does adding a battery change the cost of my panel upgrade?

Yes. Integrating a battery storage system adds scope to the panel upgrade — a critical load sub-panel or transfer switch is required, interconnection wiring needs to be run, and the configuration needs to be validated to ensure safe operation during a grid outage. The added cost is typically $1,500 to $3,000 in additional labour and materials, depending on the battery unit and configuration.

Can I get a panel upgrade quote online or over the phone?

We can provide a preliminary price range based on the information you share, but an accurate quote requires a licensed electrician to assess your current panel, wiring condition, and planned load additions. Constant Home Comfort offers free in-home assessments across Ontario — book yours today and receive a fully itemized written quote with no obligation.

How quickly can Constant Home Comfort complete a panel upgrade?

Most standard panel upgrades are completed in a single day. From the time you book your assessment to the day power is restored with your new panel, the process typically takes one to two weeks depending on permit processing times and utility scheduling in your area.

Constant Home Comfort provides transparent, all-inclusive electrical panel upgrade quotes for homeowners across Toronto, the GTA, and all of Ontario. No hidden fees, no permit surprises, and no pressure. Just a clear, itemized price from a licensed team that handles the entire project — permits, inspection, utility coordination, rebate applications, and everything in between.

Call us at 1-888-675-5907 or fill out our online form to book your free in-home assessment. Rebate programs are funded on a first-come, first-served basis — the sooner you book, the sooner you can lock in your spot and your savings.

Serving: Toronto, North York, Scarborough, Etobicoke, Mississauga, Brampton, Vaughan, Richmond Hill, Markham, Newmarket, Barrie, Hamilton, Burlington, Waterloo, London, Ottawa, and communities across Ontario.