Rewiring a 3-Bedroom House: Detailed Cost Estimate
Get a transparent breakdown of the costs associated with upgrading electrical systems in a typical Canadian three-bedroom home.
*This range is based on factors like existing wiring type (Knob & Tube or Aluminum) and extent of wall damage repair.
Assessing the Electrical Rewiring Cost for a 3-Bedroom Home in Canada
I.Typical Cost Range for a Standard Project
The full electrical rewire (rewire) of an older Canadian home is an expensive but necessary project to keep you safe, compliant with regulations, and your home insurable, particularly if you have Aluminum wiring or a 60-amp service. In Canada, a “standard” three-bedroom home is often based on a measurement of 1,500 square feet.
For a typical 1,500 sq ft home in Canada, the total cost to rewire typically ranges between $8,000 and $16,000 CAD. Some estimates suggest prices have ranged from $2,500 to $14,000 for the rewiring alone (excluding preliminary work and panel upgrades). These prices consider the costs of licensed electrician work, materials, required permits, and any final inspection by safety authorities.
Duration of Work; The duration of work range of a full home rewire varies depending on the age of the home, size of the home and accessibility. Typically, a full home rewire requires 3 to 10 working days.
II.Analysis of Major Factors Affecting Cost (Cost Drivers)
The single most significant variable in the cost of a full rewire will be access to the existing wiring paths in the walls and ceilings.
1.Access (Open vs. Intact Walls)
Rewiring a home where the walls and ceilings are intact (e.g., plaster or finished drywall) is much greater difficulty and more costly than with a home where the wall treatments have been removed as part of a larger renovation. Electricians must fish the new wiring through narrow chases and ceilings. This can be more challenging and therefore costly when ceilings are more than 8 feet as specialized equipment such as scaffolding or a lift platform may be necessary.
2.Upgrade to Electrical Panel (Amperage Service)
The majority of older homes are serviced by a 60 amp or 100 amp panel, which is not sufficient for contemporary loads (those including high-draw appliances, EV chargers or heat pumps). It is almost always recommended to upgrade the service from 100 amps to 200 amps, and represents a substantial upfront cost component.
- Cost for Panel Upgrade (100A to 200A): $1,500 to $3,000 CAD.
- Cost Range within British Columbia (including general labour and materials): $2,500 to $8,000 CAD (this depends on whether the meter box needs replacing and/or if you need to involve the utility).
- Cost of Utility Service Entrance Upgrade: $500 to $1,500 or more, BUT it could be free in some municipalities.
3.Professional Labor and Hourly Rates
In Canada, the hourly rates for a licensed electrician varies between $65 – $130 CAD10. Any electrical work must be completed with a Licensed Electrical Contractor (LEC). These LECs are bonded and insured, which adds to the cost of the project, but provides peace of mind, warranty protection, and liability coverage for the homeowner.
Where Does the Cost Go? (Standard 3-Bedroom)
- Certified LEC time (5-7 days)
- System planning and circuit mapping
- Working in confined attic/basement spaces
- Final testing and safety verification
- New Copper Wiring (AWG 14/12/10)
- New Electrical Panel (100A or 200A)
- Breakers, GFCI/AFCI receptacles, fixtures
- Junction boxes and mounting hardware
- Mandatory ESA/Local Electrical Permits
- Wall/Drywall Patching and repair (significant variable)
- Disposal of old wiring and components
- Post-completion ESA Inspection/Certificate
Estimated Project Duration
Timeline includes permitting, execution, and final safety inspection.
III. Compliance Costs and Safety Standards (Canadian Electrical Code – CEC)
Any new wiring or circuit extensions must meet the latest requirements of the (Canadian Electrical Code) CEC, or other relevant provincial codes (e.g., OESC in Ontario), which require the installation of essential circuit protection devices:
1.AFCI and GFCI Protection
- AFCI (Arc Fault Circuit Interrupters): Required for almost all 125V, and 20-amp receptacle circuits in living areas of the house (e.g., bedrooms and hallways) to prevent an electrical fire caused by an arc fault.16
- GFCI (Ground Fault Circuit Interrupters): Required in damp locations or areas containing water, such as bathrooms and kitchens, for all exterior receptacles and to prevent an electrical shock.
- AFCI/GFCI Cost Implications: AFCI breakers are often over $100 per circuit and significantly increase the material costs of a 3-bedroom home.
2.Permits and Inspections
In British Columbia and Ontario, the filing of a Notification of Work (permit) is required for rewiring.
- Permit Costs: The cost of the permit would range from under $100 for smaller residential projects in Ontario to an average of $100 to $500 depending on the municipality. The final inspection and issuance of a Certificate of Acceptance by the LEC confirm the work meets code.
1.Important Note: Aluminum Wiring and Insurance
If the house has aluminum wiring (common in the 1960 and 70s), the property owner essentially has two choices:
- Total Replacement: Replace the wiring with copper wire (the best long-term solution but expensive). We group this option in with the overall rewiring estimate of $8,000 – $16,000.
- Remediation (Pigtailing): Splice short lengths of copper wire onto the ends of the existing aluminum wire. Use connection hardware that complies with code requirements (such as AlumiConn or COPALUM) and anti-oxidant paste.
– Remediation Costs: Pigtailing is up to 10 times cheaper per outlet than a complete replacement. The estimate for wiring remediation in a house can range from $800 – $3,000.
Insurance Note: Insurers in Canada classify Aluminum and Knob and Tube wiring as a high risk for insurance coverage, and require that a certified inspection and upgrade process occurs prior to the initial issuance or renewal of an insurance policy. The completed and accepted ESA Certificate of Acceptance (Ontario) will provide substantiation supporting the legal marketability of the property and entitlement to standard insurance rates for the homeowner’s established insurance policy.
Get an Accurate, Fixed-Price Quote
Every home is unique. For a precise quote on your 3-bedroom property, contact our Licensed Electrical Contractors today. No hidden fees, no obligations.
Start Your Quote Now
