What are the code requirements for bathroom outlet placement and GFCI protection in Ontario?

Every electrical outlet in an Ontario bathroom must have GFCI (Ground Fault Circuit Interrupter) protection — this is a non-negotiable requirement under the Ontario Electrical Safety Code and one of the most important safety features in any bathroom. GFCI protection detects ground faults — situations where electrical current is flowing through an unintended path, such as through water or a person — and cuts power in milliseconds, preventing electrocution.

The requirement is absolute: all receptacles (outlets) in a bathroom must be GFCI-protected, regardless of their distance from water sources. This applies to the outlet beside the vanity mirror, the outlet near the toilet for a bidet seat, the outlet for a countertop appliance, and any other receptacle in the room. In older Toronto homes — particularly pre-1980s houses across Scarborough, North York, Etobicoke, and the inner suburbs — bathrooms often have standard outlets without GFCI protection. Upgrading these during a bathroom renovation is essential for safety and code compliance.

How GFCI Protection Works in Practice

You can provide GFCI protection in two ways: with a GFCI receptacle (the outlet itself has test and reset buttons) or with a GFCI circuit breaker at the electrical panel that protects the entire circuit. Both methods are code-compliant. GFCI receptacles cost $15–$30 each and are the most common approach in GTA bathroom renovations because they provide visible, accessible test and reset buttons right at the point of use. GFCI circuit breakers cost $40–$80 and protect every outlet on the circuit — useful when multiple outlets are on the same circuit.

GFCI outlets should be tested monthly by pressing the test button to verify they trip properly, then pressing reset to restore power. This is simple maintenance that many homeowners neglect but is critical for ensuring the safety device actually works when needed.

Outlet Placement and Circuit Requirements

The Ontario Electrical Safety Code requires at least one duplex receptacle within reach of the vanity area in every bathroom. In practice, most GTA bathroom renovations include one or two GFCI outlets near the vanity for hair dryers, electric razors, and other grooming appliances, plus an additional outlet near the toilet area if a bidet seat is planned (electronic bidet seats require a nearby outlet on a dedicated or shared bathroom circuit).

Bathroom receptacles should be on a dedicated 20-amp circuit that serves only the bathroom — this is current best practice and required by the Ontario Electrical Safety Code for new installations. The 20-amp rating accommodates high-draw appliances like hair dryers (which can pull 12–15 amps) without tripping the breaker. In older Toronto homes, bathroom outlets were often shared with hallway or bedroom circuits on 15-amp breakers — a renovation is the perfect opportunity to upgrade to a dedicated 20-amp bathroom circuit.

Heated Floor and Exhaust Fan Circuits

Beyond receptacles, bathroom electrical work in Ontario includes circuits for heated floors and exhaust fans, both of which have specific code requirements. Electric radiant floor heating systems must be on a dedicated circuit with GFCI protection — the heating mat or cable manufacturer specifies the circuit size based on the floor area, but 15-amp or 20-amp dedicated circuits are standard for typical GTA bathroom sizes. The GFCI protection for heated floors is typically provided at the thermostat/control unit or the circuit breaker.

Exhaust fans require their own circuit or can share a lighting circuit depending on the installation. The fan switch should be accessible and, ideally, equipped with a timer or humidity sensor to ensure adequate run time after bathing.

ESA Inspection Is Mandatory

All new or modified bathroom electrical work in Ontario — including GFCI outlet installation, new circuits, heated floor wiring, and fan circuits — requires a permit and ESA (Electrical Safety Authority) inspection before being concealed behind walls or finishes. Your licensed electrician handles the permit application and schedules the inspection. The ESA inspector verifies proper GFCI protection, circuit sizing, wire routing, grounding, and overall compliance with the Ontario Electrical Safety Code.

The cost for upgrading bathroom electrical during a renovation in the GTA typically runs $500–$2,000 depending on the scope — adding GFCI outlets, a heated floor circuit, new fan wiring, and updated vanity lighting. Given that this work protects your family from electrocution in a wet environment, it is one of the most important investments in any bathroom renovation project.