ESA Notification Process Ontario

The rule is simple: electrical work is notified to ESA, not just the city

An ESA notification is Ontario’s electrical permit process. It tells the Electrical Safety Authority that electrical work is being done at a specific address so ESA can audit, inspect, issue defects if needed, and close the file when the work complies with the Ontario Electrical Safety Code.

A municipal building permit is different. The city or town reviews building code items such as structure, fire separations, plumbing, HVAC, zoning, and occupancy. ESA deals with the electrical installation: service equipment, panels, wiring methods, grounding and bonding, overcurrent protection, devices, lighting, and safe connection to the utility supply. One approval does not replace the other.

That distinction matters on projects such as basement renovations, service upgrades, kitchens, EV chargers, hot tubs, commercial tenant fit-outs, and rental unit work. A basement apartment may need a municipal building permit and electrical work under an ESA notification. A panel upgrade may need ESA involvement and utility coordination, even if no municipal building permit is required. If Toronto Hydro, Alectra, Hydro One, Elexicon, Oshawa Power, Oakville Hydro, Burlington Hydro, or another utility is involved, their service rules are an added step, not a substitute for ESA.

In practice, the person filing is usually a Licensed Electrical Contractor. City Power Electrical Services is a Licensed Electrical Contractor, ECRA/ESA #7015314, so when we perform notifiable work, we handle the ESA notification where required and arrange inspection steps with the job. Ontario has limited homeowner allowances for an owner doing electrical work personally in their own dwelling, but those allowances are not a workaround for hiring an unlicensed contractor. Rental, commercial, condominium common element, and multi-unit situations need extra care because the owner may not have the same practical rights as a single-family homeowner doing their own work.

What the notification requires in practice

The practical sequence is: define the scope, file the ESA notification, complete the work to the Ontario Electrical Safety Code, leave work visible where inspection may be needed, correct any defects, and have the notification closed. On larger jobs, there may be rough-in and final inspection stages. On smaller jobs, ESA may inspect or may close through its risk-based process, depending on the work and ESA’s current procedures.

A proper notification identifies the address, the type of work, the contractor or owner filing, and the scope. The scope should match the work actually being done. Replacing a damaged receptacle is not the same as adding a new 20A kitchen small-appliance circuit. Swapping a light fixture is not the same as adding pot lights, new switching, dimmers, and multiple new cable runs. A panel replacement is not the same as a 100A-to-200A service upgrade with a new meter base and utility disconnect/reconnect.

Fees should be checked against ESA’s current fee schedule. Do not rely on an old copied fee list, a neighbour’s invoice, or a forum post. ESA updates fee categories, and the fee depends on the work type and scope. Our written estimates state the electrical scope and include ESA notification handling where required, rather than leaving homeowners to guess which fee category applies.

Some work needs coordination beyond the notification itself. A service upgrade can involve the utility, meter base rules, service mast or underground service details, and a disconnect/reconnect appointment. See the Toronto Hydro service upgrade process for how that piece fits together in Toronto. Meter equipment has its own utility and ESA expectations, covered separately in our meter base replacement rules guide.

Common mistakes are usually caught when work is hidden, sold, insured, or re-opened

The most common mistake is assuming “small” means “no notification.” Adding a receptacle, extending a circuit, installing a dedicated appliance circuit, wiring a hot tub, replacing a panel, installing an EV charger circuit, or running new wiring in a basement finish is not the same as changing a cover plate. If new wiring is installed, a circuit is extended, service equipment changes, or life-safety equipment is affected, assume ESA may be required until confirmed.

Another mistake is covering the work too soon. Drywall, ceilings, cabinetry, insulation, tile, and exterior cladding can hide cable routing, box fill, conductor size, staple spacing, bonding, junction locations, and protection plates. Once covered, an inspector may require openings to verify the installation. That is expensive and frustrating, especially when the rough-in could have been checked before boarding.

We also see confusion between “my contractor said it is permitted” and “an ESA notification was filed.” Ask for the ESA notification number. A legitimate electrical contractor should be able to tell you how the ESA process is being handled. If someone asks the homeowner to file as if they did the work themselves, that is a warning sign. It can leave the owner responsible for work they did not install and may create problems later.

Specific defects ESA may catch include missing bonding on metal boxes, improper cable support, buried junction boxes, wrong breaker size for the conductor, mixed neutral conductors, incorrect GFCI protection in damp or outdoor areas, missing AFCI protection where required, non-tamper-resistant receptacles where required, overloaded panels, poor panel labelling, incompatible breakers, and unsafe splices into older wiring. Code requirements change over time, so current work must be checked against the current Ontario Electrical Safety Code, not the rules from when the house was built. Our 2024 Ontario Electrical Safety Code changes page explains that broader point without replacing an inspection.

At inspection, ESA checks code compliance and documents defects

An ESA inspection is not a design review, home inspection, or workmanship rating. The inspector is checking whether the electrical installation complies with the Ontario Electrical Safety Code and whether the notified scope can be accepted. For homeowners, that distinction is important: ESA is focused on safety and code compliance, not whether the light layout is attractive or whether the contractor patched drywall neatly.

Depending on the project, the inspector may look at panel capacity and labelling, breaker type and rating, conductor size, grounding and bonding, GFCI and AFCI protection, box fill, device ratings, cable protection, wet-location fittings, disconnects, smoke/CO interconnection where electrical work touches life-safety systems, and whether energized equipment has been left in a safe condition. For service work, the utility connection, meter equipment, service conductors, grounding electrode, and main disconnect are common inspection areas.

If defects are found, ESA issues a defect notice. The defects must be corrected, and ESA must be satisfied before the notification closes. Do not treat a defect notice as optional. It can delay occupancy, delay utility reconnection, complicate a renovation sign-off, or become a problem during sale or insurance review.

When the notification is accepted, ESA closure can support future proof of compliance. If you need to understand the document issued after acceptance, see our ESA Certificate of Acceptance Ontario guide. For a more homeowner-focused walkthrough of the visit itself, see ESA inspection: what to expect.

At sale, insurance, and claims time, missing notifications become evidence problems

Electrical work without a closed ESA notification can become a paperwork problem long after the walls are painted. A buyer may ask for proof that a panel upgrade, basement wiring, EV charger, hot tub circuit, knob-and-tube removal, aluminum remediation, or rental-unit work was inspected. A home inspector may flag amateur wiring but cannot issue ESA acceptance. A real estate lawyer or insurer may ask for documentation before closing or coverage.

Insurance is especially sensitive to older or altered electrical systems. If there is a fire, shock, equipment loss, or water damage involving wiring, the insurer may look for evidence that electrical work was done by a licensed contractor and inspected where required. A missing notification does not automatically explain what happened, but it can make the file harder to defend.

Landlords, condo owners, and commercial tenants should be even more cautious. The Residential Tenancies Act, Condominium Act, Ontario Fire Code, lease requirements, and building management rules can all sit beside the ESA process. For example, a condo owner may need board or property-management approval before the electrical work even starts. A landlord may need to prove safe electrical conditions for a tenant, not just show that a handyman completed the work.

What to do next before you book the work

Start by writing down the exact scope: what is being added, replaced, relocated, or upgraded. Take a clear photo of the panel, the work area, and any equipment nameplates. If the project involves a service upgrade, EV charger, hot tub, basement apartment, commercial space, or rental unit, assume ESA coordination is part of the planning.

Then hire a Licensed Electrical Contractor and ask how the ESA notification will be handled. For inspection-only concerns, older wiring, pre-purchase due diligence, or unknown renovation work, book a proper electrical inspection in Toronto and the GTA. City Power provides free written estimates, files ESA notifications where required for our work, corrects defects within the agreed scope, and cleans up when the job is complete.

If work has already been done without paperwork, do not hide it further. Leave access available, gather invoices and photos, and have a licensed electrician assess it. Some issues can be corrected and documented; others may require opening walls or replacing unsafe work. The earlier you deal with the notification question, the cheaper and cleaner the fix usually is.