How much does finishing a basement cost in Quebec and Canada?
Insulation, partitions, drywall, ceiling, flooring, electrical and bathroom: a price per square foot, at CCQ rates.
Your project
Is it new construction or a renovation?
In new construction, there is nothing to remove.
The price of finishing a basement is calculated per square foot, and depends on the starting condition, the enclosed rooms and the insulation. The calculator prices insulation, partitions, ceiling, flooring and electrical, at Quebec rates.
What changes the price of finishing a basement
- Area and starting condition
- A bare-concrete basement needs everything; a basement already insulated and divided mostly needs finishing.
- Enclosed rooms
- Each bedroom, bathroom or office adds partitions, doors and electrical circuits.
- Insulation
- The Code requires foundation walls to be insulated; spray polyurethane or batt insulation with a vapour barrier, the price changes.
- Ceiling and flooring
- Drywall or suspended ceiling; vinyl, floating floor or carpet: each choice has its price.
- Height and moisture
- Low clearance under the joists or a damp basement adds preliminary work.
What the estimate includes
- Foundation wall insulation and the vapour barrier
- Partitions, drywall, taping and paint
- The chosen ceiling, flooring and doors
- Electrical (circuits, outlets, lighting) by a master electrician
- Labour at the CCQ rate, mobilization and a contractor’s normal margin
Frequently asked questions
How much does finishing a basement cost in Quebec and Canada?
Finishing an 800 sq ft basement on bare concrete costs $72,600 to $92,800 in Quebec in 2026: one bedroom and one bathroom, batt insulation, drywall ceiling, vinyl flooring, standard height. The bathroom and the floor area weigh the most. Amount before taxes, calculated line by line by qcalculatrice.com at Quebec prices (Québec — grille 2026 v2.2), range verified on September 18, 2026. This is an estimate, not a quote: the calculator redoes it for your home.
Do I need a permit to finish a basement?
Yes, in most municipalities: finishing touches on insulation, electrical and bedroom egress.
Is a basement bedroom allowed?
Yes, if it has a window large enough to serve as an emergency exit and sufficient clear height. The calculator does not replace checking the Code.
Should moisture be fixed before finishing the basement?
Always. A leak or a damp foundation will ruin the finish. See the French drain and foundation calculator first.
Is this a firm price?
No. It is an estimate calculated for your basement, made to set a budget and compare quotes. Only a contractor who has seen the premises can sign a price.