Home Addition Contractors in Montréal
Montréal sits close to the national average for renovation costs. Labour is reasonable, but French-language documentation requirements and Quebec's specific building code add planning complexity. RenoPlanner matches you with pre-screened home addition specialists in Montréal who understand local permits, pricing, and project timelines.
Typical Timeline
16–52 weeks
Montréal's renovation season is heavily weighted toward May–October. Winter work is possible for interiors but trades are busy.
Permit Required
Yes
Montréal permits (permis de construction) require French-language submissions and typically take 3–8 weeks. Some boroughs have their own additional requirements.
Live Market Data
Renovation Activity in Montréal
Permits Issued (12 mo)
15,880
+28.0% vs last year
Active Projects
17,594
Currently tracked in Montréal
Avg Permit Value
$35K
Montréal market average
Data updated 2026-05-27. Source: RenoIntel — permit tracking across Canadian municipalities.
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Frequently Asked Questions
How do I find a reliable home addition contractor in Montréal?
The most reliable way to find a home addition contractor in Montréal is to get matched through a vetted platform like RenoPlanner, which pre-screens contractors for licensing, insurance, and work quality. Always ask for references, verify WSIB/WCB coverage, and get at least 3 detailed quotes before committing.
How much does a home addition contractor charge in Montréal?
Home Addition contractors in Montréal typically charge for a project in the range of $80,000–$350,000 depending on scope, materials, and timeline. Montréal sits close to the national average for renovation costs. Labour rates in Montréal are close to the national average.
What should I look for when hiring a home addition contractor in Montréal?
When hiring a home addition contractor in Montréal, verify they are licensed and insured in QC, have WSIB/WCB coverage, can provide 3+ recent references, and are experienced with Montréal's specific permit requirements. Montréal permits (permis de construction) require French-language submissions and typically take 3–8 weeks. Some boroughs have their own additional requirements.
How long does a home addition take in Montréal?
Most home additions in Montréal take 16–52 weeks from start to completion. Montréal's renovation season is heavily weighted toward May–October. Winter work is possible for interiors but trades are busy.
What to Ask Before Hiring a Home Addition Contractor in Montréal
- ✓Confirm they work with a licensed structural engineer and can share their network
- ✓Ask about their permit experience in your specific city — timelines vary dramatically
- ✓Verify their experience with exterior cladding that matches your existing home
- ✓Ask how they manage weather delays — additions expose your home to the elements during construction
- ✓Request a detailed project schedule with milestones, not just a completion date
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