Finishing your basement: the electrical the Code requires
Before the drywall goes up, your basement’s electrical has to be planned: number of outlets, GFCI protection, detectors, dedicated circuits. Here’s what the Code asks — and why you want to do it right, once.
A finished basement has its rules
A basement isn’t just “pulling a few outlets.” The Code requires a minimum number of outlets, specific protection, and circuits sized for the use. Doing it once, properly, before you close the walls — that’s what saves you from opening everything back up later.
Enough outlets, well spaced
The Code sets a maximum spacing between wall outlets — no more extension-cord jungle.
GFCI protection in damp spots
Bathroom, laundry corner, near a floor drain: GFCI required.
Smoke and CO detectors
One smoke detector per storey, basement included; CO if there’s combustion or an attached garage.
Dedicated circuits for big loads
Home theatre, kitchenette, space heater: each on its own circuit.
What’s behind the wall stays 20 years
A badly wired basement is a problem you seal in: impossible to see, costly to fix. Ungrounded outlets, overloaded circuits, boxes buried in insulation… all invisible fire risks. A master electrician plans the whole thing before finishing, to Code — and you get a detailed invoice, useful for insurance and resale.
Finishing your basement, step by step
Plan it with you
We map the zones (living room, office, bedroom, laundry) and each one’s needs.
Circuits and outlets
We run the circuits, place outlets to Code, and GFCI-protect the damp zones.
Lighting and detectors
Recessed LED lighting, well-placed switches, smoke and CO detectors.
Inspection and closing
We check everything before closing the walls — so nothing has to be reopened.
A basement to finish?
We plan your basement’s electrical to Code, before finishing. CMEQ member · RBQ licence · 5-year warranty.
What people ask us
How many outlets does a basement need?+
The Code sets a maximum spacing between wall outlets, so you never have to run an extension cord across the room. The exact number depends on the layout; a master electrician calculates it based on your walls and usage.
Do I need GFCI outlets in the basement?+
Yes, in damp spots: bathroom, laundry area, near a floor drain or foundation wall. GFCI protection cuts power on a ground fault — essential wherever there’s water.
Do I have to install smoke and CO detectors?+
Yes. One smoke detector per storey, basement included. A carbon monoxide detector is required if there’s a combustion appliance (furnace, gas water heater) or an attached garage.
Can I wire my basement myself?+
No. In Quebec, residential electrical work is reserved to an RBQ-licensed, CMEQ-member company. Non-compliant work hidden in the walls is also a risk to your insurance.
How much does it cost?+
It depends on the area and the zones to power. At Groupe Quenneville, a regular service call is $150 plus $140/hr (1 hr minimum). We plan it with you and quote clearly — free quote at 514-503-1353.
