Cost to Upgrade an Electrical Panel from 100 to 200 Amps in Quebec

Many residential properties built between the 1970s and 1990s still have a 100-amp electrical service. At the time, this capacity was generally enough for lighting, household appliances, and basic electric heating. However, with the growing use of electric vehicles, high-efficiency heat pumps, and fully finished basements, a 100-amp service can reach its limits more quickly, especially during Canadian winters.

Upgrading from a 100 A to a 200 A electrical service can increase the available capacity for new equipment and make certain home electrification projects easier to accommodate. It can also provide more flexibility for higher-demand appliances when a load calculation shows that the upgrade is warranted.

How Much Does It Cost to Upgrade an Electrical Panel From 100 to 200 Amps?

Source: Deschênes Électrique Inc.

For a typical residential upgrade, expect to pay approximately $2,000 to $4,500 before tax. More complex work, particularly involving an underground service, can exceed $5,000. The final price depends largely on the extent of the modifications required outside the home.

Estimated costs for a 100 A to 200 A upgrade:

• Interior panel replacement only: $2,000 to $2,800

• Complete panel, service mast, and meter base replacement: $3,000 to $4,500

* Estimated residential price ranges before tax.

If the service conductors between the utility connection and the home, along with the meter base and exterior mast, are already compatible with a 200 A service, the work may be limited to replacing the interior panel. Otherwise, the rest of the electrical service equipment may also need to be upgraded.

For a more accurate estimate based on your home, consider requesting a detailed renovation estimate from qualified professionals.

Cost of Electrical Panel Parts and Components

Materials account for a significant portion of the total cost, although the proportion varies depending on the components being replaced and the complexity of the installation.

In Quebec, the equipment and installation must comply with "Chapter V — Electricity" of the Quebec Construction Code, which incorporates the Canadian Electrical Code with the applicable Quebec amendments.

• 200 A electrical panel: Expect to pay approximately $300 to $600 for a new panel from a recognized manufacturer.

• Standard breakers (15 A to 50 A): Basic single-pole or double-pole breakers generally cost $15 to $40 each.

• Arc-fault and ground-fault protection devices: These may be required for certain circuits and receptacles depending on their location and use. The electrical contractor will determine the appropriate number and type based on code requirements. Specialized breakers can cost approximately $60 to $120 each.

• Meter base and exterior service mast: A 200 A meter base can cost approximately $200 to $400, while the rigid steel mast and weatherhead can add another $250 to $500.

• Copper or aluminum service wiring: The conductor between the mast and the panel can cost approximately $150 to $350, depending on the required length.

Electrician Labour Rates and Costs

In Quebec, the CMEQ publishes reference hourly rates to help estimate electrical work costs. However, contractors are free to set their own rates. In 2026, the CMEQ reference hourly rate for a journeyperson electrician working in light residential construction is approximately $119 per hour, although the rate charged can vary depending on the contractor, market, and site conditions.

The length of the job depends on the condition of the existing service and the amount of work required. A straightforward upgrade may sometimes be completed in one day, while a more complex project can take longer.

Typical work may include:

• Preparing and requesting a service disconnect from Hydro-Québec

• Removing the existing 100 A panel and labelling the circuits

• Installing a new service mast and exterior meter base

• Installing the 200 A panel and reconnecting the breakers

• Testing polarity and grounding, followed by a final inspection

The job often involves a master electrician working with an apprentice, particularly when exterior work at height is required. Labour costs may therefore range from approximately $1,200 to $2,200, depending on the project.

Why Upgrade From a 100 A to a 200 A Electrical Service?

Source: HM Technique inc.

Upgrading an electrical service is rarely without cause. It usually reflects changing household energy needs and the addition of modern equipment that can place greater demand on the electrical system.

Available capacity by electrical service size:

• A 100 A electrical service has a nominal capacity of approximately 24 kVA at 240 V, compared with approximately 48 kVA for a 200 A service. However, the actual service capacity required for a home must be determined through a code-compliant load calculation.

* Upgrading to 200 A is not always necessary. A qualified electrical contractor should perform a load calculation to determine whether the existing service is sufficient or whether a load-management solution could be used instead.

Installing an Electric Vehicle Charging Station

Source: Cutting Edge Group Inc.

Purchasing an electric vehicle often leads homeowners to install a 240-volt Level 2 charging station. Depending on its output, a residential Level 2 charger may require, for example, a 40 A circuit for approximately 7.2 kW of charging power or a 60 A circuit for approximately 11.5 kW. The exact circuit size depends on the charger and installation.

On a 100-amp service, adding an EV charger while electric baseboards, a water heater, and an electric range are operating may exceed the available capacity of some homes, depending on the load calculation. Without a service upgrade or a load-management device, the main breaker may trip.

Heating, Heat Pumps, and Other High-Demand Equipment

Cold Canadian winters can place significant demand on residential heating systems, especially during periods of extreme cold.

Examples of loads that may be added to a residential electrical system include:

• Central or multi-zone heat pump: 30 A to 40 A

• 60-gallon electric water heater: 25 A

• Outdoor hot tub or sauna: 40 A to 50 A

• Electric range or built-in oven: 30 A to 40 A

• Electric radiant floor heating: 15 A to 30 A

* The required power and circuit size vary depending on the appliance and the manufacturer’s specifications.

If you are replacing electric baseboards with a central heat pump or finishing a basement with a secondary kitchen, a load calculation performed by an electrical contractor can determine whether your existing service remains adequate or requires an upgrade.

You can also request an electrical work quote from screened professionals.

Factors That Affect the Cost of the Work

Source: VL electrique inc.

Several technical home-specific factors can increase or decrease the final price.

These include:

• Distance between the exterior service mast and the interior panel

• Overhead versus underground electrical service

• Condition of the grounding and bonding system

• Whether the electrical panel needs to be relocated

Condition of the Service Mast and Exterior Electrical Service

The service mast supports the overhead electrical conductors connected to the utility system. If the existing mast is rusted, damaged, or too small to accommodate the conductors required for a 200 A service, it may need to be replaced.

In some homes, the mast passes through the soffit or roof overhang. Replacing it may therefore require careful waterproofing to prevent water from leaking through the roof structure.

Coordination and Disconnection Fees with Hydro-Québec

Replacing an electrical service must be coordinated with Hydro-Québec if it requires a power interruption or a change to the utility connection. The electrical contractor handles the applicable procedures. Fees may apply depending on the type of service connection and the work required, particularly when changes to the utility network are necessary.

The master electrician handles the official connection request. Additional utility charges may apply depending on the work requested from Hydro-Québec and the changes required to the grid.

Legal Requirements: Why Use a Certified Electrician?

Source: Électricité GRZ inc.

In Quebec, electrical installations are strictly regulated. Homeowners are legally prohibited from replacing their own electrical panel or modifying their main electrical service.

The Quebec legal framework includes:

• Building Act (CQLR, c. B-1.1)

• Electrical work reserved for master electricians

• RBQ licence required — subclass 16.0

• Membership in good standing with the CMEQ

* Illegal electrical work can result in penalties. Non-compliant work may also complicate an insurance claim, depending on the circumstances and the policy terms.

CMEQ Certification and RBQ Licence Protection

Hiring an electrical contractor with the appropriate licence ensures that the work is assigned to someone legally authorized to perform electrical work in Quebec:

• Safety: The work must comply with applicable requirements to reduce the risk of electrical fires and electric shock.

• Code compliance: The electrical contractor must follow the code requirements applicable to the installation.

• Insurance documentation: Keep invoices and documentation related to the electrical work. These records may be useful in demonstrating the nature and compliance of the work during a future insurance claim.

• Access to the licence bond: The bond associated with the licence may compensate an eligible client for certain losses, including incomplete work or poor workmanship, subject to applicable conditions and limits.

You can find a qualified master electrician to ensure the work is assigned to a contractor authorized to perform electrical work in Quebec.

How to Save Money and Get the Best Quotes

Source: RenoQuotes

Although labour and material costs vary, several strategies can help manage your budget:

• Bundle electrical work: If possible, have your electrician install an EV charger, add basement receptacles, or replace old wiring during the same visit. Combining work may reduce repeated service-call costs.

• Take advantage of government incentives:

1. Quebec’s Écorecharge program provides $600 in financial assistance to eligible EV owners to purchase and install an eligible residential charging station.

2. Hydro-Québec’s LogisVert program also provides financial assistance for eligible heat pump purchases and installations.

• Compare multiple quotes: Request at least three detailed written quotes listing parts, estimated labour, and inclusions such as the mast, meter base, and permits.

To get started, you can request several free quotes from qualified contractors serving your area.