Do You Need an ESA Permit for Electrical Work in Ontario?
You are planning electrical work and someone mentions an ESA permit. Do you actually need one? For most home electrical work in Ontario, the answer is yes.
A permit is not red tape. It is the inspection step that confirms the work is safe and code compliant, and it protects your insurance. This guide explains when you need one, who pulls it, and why it matters.
What an ESA Permit Is
The Electrical Safety Authority regulates electrical work in Ontario. An ESA permit, often called a notification of work, tells the ESA that electrical work is happening so it can be inspected. The permit is your proof that the work met the Ontario Electrical Safety Code.
Permit vs Notification of Work
You may hear both terms. In practice they refer to the same thing. A Licensed Electrical Contractor files the notification with the ESA, does the work, and the ESA inspects it. You receive a Certificate of Acceptance when it passes.
When You Need a Permit
Most electrical work beyond a simple like for like swap needs a permit. Common jobs that require one include:
- A panel upgrade or replacement.
- A fuse box to breaker panel change.
- New circuits or new wiring.
- An EV charger installation.
- A hot tub, pool, or sauna connection.
- Rewiring a room or a whole home.
- A service upgrade or a new service.
For chargers, see our EV charger guide.
What It Costs
An ESA permit for typical residential work runs about 250 to 500 dollars depending on the scope. Your contractor includes it in the quote. Treat any quote that skips the permit as a red flag.
Who Pulls the Permit
A Licensed Electrical Contractor files the permit for you. The ESA states that a Licensed Electrical Contractor is the only business you can legally hire to do electrical work in your Ontario home, and that contractor holds a 7 digit ECRA or ESA licence number. Ask for that number before any work starts. We handle the permit and inspection on every job through our residential electrical services.
Why the Permit Protects You
The permit is not just compliance. It is your safety net.
Insurance Coverage
The ESA warns that an insurer can deny a claim tied to work done by an unlicensed contractor or without a permit. If unpermitted work causes a fire, you could be left paying for it yourself.
Safety and Resale
The inspection catches mistakes before they become hazards. The numbers show why that matters. The Electrical Safety Authority links 143 electrical related fatalities in Ontario between 2015 and 2024, and its 2024 Ontario Electrical Safety Report found that electrical fatalities outside of work rose 40 percent over the past decade.
Patience Cathcart, the ESA Public Safety Officer, said the findings show why safety has to reach beyond job sites, and that the agency stays focused on "educating the public, guiding industry."
A Certificate of Acceptance also reassures buyers when you sell. Unpermitted work often surfaces during a home inspection and can derail a sale.
ESA Permit FAQ
Do I need an ESA permit to replace an outlet?
A simple like for like swap by the homeowner may not require a permit, but new wiring, added circuits, or any larger work does. When in doubt, ask a licensed contractor.
How much does an ESA permit cost?
Typical residential permits run about 250 to 500 dollars depending on scope. Your licensed contractor includes it in the quote and files it for you.
Can a homeowner pull an ESA permit?
Homeowners can file for some work on their own property, but the work still must meet code and pass inspection. Most people hire a Licensed Electrical Contractor who handles it.
What happens if I do electrical work without a permit?
Unpermitted work can fail to meet code, create a hazard, and void your insurance. It can also block a future home sale when an inspector flags it.
How do I check if an electrician is licensed?
Ask for the 7 digit ECRA or ESA licence number and confirm it through the ESA. Only a Licensed Electrical Contractor can legally do this work in Ontario.
The Bottom Line
Most home electrical work in Ontario needs an ESA permit, and that permit protects your safety, your insurance, and your resale. A Licensed Electrical Contractor pulls it, does the work, and books the inspection. Never accept a quote that leaves the permit out.
Planning electrical work?
Kolji Bros. Electrical handles the permit and inspection on every job across the GTA. Call 1 866 565 5427 or request a free quote.