What does a typical electrical rough-in cost for a bathroom that needs new circuits for heated floors, exhaust fan, and vanity lights?

A typical electrical rough-in for a new bathroom with heated floors, exhaust fan, and vanity lighting costs $1,200-$2,500 in the GTA, including materials, labour, permits, and ESA inspection. This assumes running new circuits from the electrical panel to the bathroom location during the rough-in stage when walls are open.

The cost breakdown includes several distinct circuits that Ontario electrical code requires for bathroom safety and functionality. Heated floor circuits need dedicated 15-amp or 20-amp GFCI-protected circuits depending on the floor area — a typical 60-80 square foot bathroom heated floor draws 8-12 amps and requires its own circuit that cannot serve any other loads. The heated floor thermostat and GFCI protection add $150-$300 to the circuit cost beyond basic wiring.

Exhaust fan wiring is straightforward but essential — fans require dedicated circuits in most cases, especially higher-CFM units (80+ CFM) or combination fan/light/heater units that draw significant power. The circuit typically runs from the panel to a wall switch, then to the fan location. Budget $200-$400 for exhaust fan rough-in wiring.

Vanity lighting circuits depend on the fixture load but typically share a circuit with bathroom outlets. However, if you're installing multiple vanity lights, a large illuminated mirror, or high-wattage fixtures, a dedicated lighting circuit may be required. This adds $250-$500 to the electrical rough-in cost.

GFCI protection is mandatory for all bathroom circuits under Ontario electrical code — every outlet, light switch, and heated floor circuit must have GFCI protection either at the panel (GFCI breaker) or at the first outlet (GFCI receptacle). GFCI breakers cost $80-$120 each versus $15-$25 for standard breakers, but they protect the entire circuit and are generally preferred for bathroom applications.

Distance from the electrical panel significantly affects cost — running circuits from a basement panel to a second-floor bathroom requires more wire, more labour for fishing through walls and floors, and potentially opening additional wall sections for access. Bathrooms close to the panel (same floor, short run) cost 20-30% less than distant locations requiring long wire runs through multiple floors.

Condo electrical rough-ins often cost more due to concrete construction, shared electrical rooms, building management requirements for electrical shutdowns, and the need to coordinate with building engineers. Condo bathroom electrical work typically runs $1,800-$3,500 for the same scope due to these access and coordination challenges.

Permit and inspection costs are included in most electrician quotes but worth understanding separately. Electrical permits through ESA (Electrical Safety Authority) cost $75-$150 depending on the scope, and the ESA inspection fee is $165-$200. Your electrician should handle permit applications and schedule inspections as part of their service — never hire an electrician who suggests skipping permits for bathroom electrical work.

Timing matters for cost control — electrical rough-in must happen after plumbing rough-in but before insulation and drywall. Trying to add circuits after walls are closed requires opening finished walls, patching, and repainting, which can double the installation cost. Plan all electrical needs during the design phase and complete rough-in while walls are open.

Always hire a licensed electrician for bathroom electrical work — the combination of water and electricity in bathrooms creates serious safety risks that require professional installation and code compliance. Bathroom electrical fires and electrocution accidents are preventable with proper GFCI protection, correct wire sizing, and professional installation that passes ESA inspection.

Need help finding a licensed electrician for your bathroom renovation? Toronto Bath Remodeling can match you with electrical contractors who specialize in bathroom rough-in work and handle permits and inspections as part of their service.