What electrical code applies to bathrooms?

Bathroom electrical work in Ontario is governed by the Ontario Electrical Safety Code (OESC), which is based on the Canadian Electrical Code (CEC). The OESC sets strict requirements for bathroom electrical installations to prevent electrocution and fire hazards in wet environments.

GFCI protection is mandatory for all electrical outlets in bathrooms. Ground Fault Circuit Interrupters must be installed on all receptacles within 1.5 meters of any water source, including sinks, tubs, and showers. This protection can be provided by GFCI outlets themselves or GFCI breakers at the electrical panel. Most contractors prefer GFCI breakers as they're more reliable and easier to reset.

Outlet placement has specific requirements under the OESC. At least one receptacle must be installed within 1 meter of each sink, but no outlets are permitted within the actual bathtub or shower space. Outlets near sinks must be positioned to avoid direct water spray. Dedicated circuits are typically required for bathroom outlets, and high-draw items like heated floors or large exhaust fans often need their own circuits.

Lighting and ventilation also have code requirements. Bathroom lights in wet locations (like over tubs) need appropriate IP ratings for moisture resistance. Exhaust fans are required in bathrooms without operable windows, and they must be on a separate switch from the lights. Some municipalities require timer switches or humidity sensors.

In Ottawa specifically, electrical permits are required for new bathroom installations or major electrical upgrades. City of Ottawa requirements may vary from provincial code - confirm with your licensed contractor who will handle permit applications and ensure all work meets both OESC and local requirements.

For any bathroom electrical work beyond replacing a light fixture, hire a licensed electrician. Improper bathroom electrical work can be deadly and will fail inspection. Want to discuss electrical upgrades for your bathroom renovation? We work with licensed electricians and offer free consultations.