Montreal, Quebec
Basement renovation cost in Montreal (2026)
A basement renovation in Montreal, Quebec typically costs $28,500–$71,300 per project, with the price driven mostly by square footage, and a project usually takes 4–8 weeks to complete. Actual costs vary by scope and finish level, so get quotes from local Pros for an exact figure.
Typical cost in Montreal
$28,500–$71,300
How we estimate: national mid-market ranges adjusted by Montreal's local cost index. Actual prices vary by scope, so always get quotes from local Pros for an exact number.
Cost data last updated June 2026
Based on Homeezy contractor quote data and public construction cost indexes.
What affects basement renovation cost in Montreal
- Square footage
- Adding a bathroom or kitchenette
- Egress windows
- Waterproofing and insulation
Typical timeline
A basement renovation project in Montreal usually takes 4–8 weeks.
Permits in Quebec
In Quebec, renovation permits are issued by your municipality and most construction work must be performed by a contractor holding a valid RBQ licence, with extra licensing for electrical and plumbing. Check with your municipality and the RBQ.
Frequently asked
How much does basement renovation cost in Montreal?
In Montreal, basement renovation typically costs $28,500–$71,300 per project, depending on square footage, materials, and the size of the job. Get quotes from local Pros for an exact figure.
Do I need a permit for basement renovation in Quebec?
In Quebec, renovation permits are issued by your municipality and most construction work must be performed by a contractor holding a valid RBQ licence, with extra licensing for electrical and plumbing. Check with your municipality and the RBQ.
How long does basement renovation take in Montreal?
A typical basement renovation project in Montreal takes 4–8 weeks, though scope, permits, and scheduling can change that.
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