Deck Building Cost in Montreal (2026)
Average cost in Montreal
$8,000 – $45,000
$45 – $130 per sq ft
In Montreal, the average is $22,013 and most projects cost between $8,000 and $45,000, or about $45 – $130 per sq ft. Prices are before tax and based on 12 sources.
Cost Breakdown
ItemizedProfessional installation and framing
50%
Decking boards, railing, and hardware
40%
1.4m deep footings or helical piles
7%
Municipal fees and technical drawings
3%
GST+QST at 14.98%
📋What's Included
ScopeTypically Includes
- Pressure-treated lumber
- Concrete footings
- Railing system
- Stairs (1 set)
- Hardware & fasteners
- Labor
Typically Excludes
- Composite or hardwood decking
- Built-in seating or planters
- Pergola or roof
- Lighting
- Permits
Based on a standard 200 sq ft pressure-treated wood deck.
🧮Estimate your project
LiveYour estimate in Montreal
Likely range $9,906 – $45,001
- Labor50%$11,007
- Materials40%$8,805
- Foundation7%$1,541
- Permits & Design3%$660
Pressure-treated Wood
$22,013
Cedar
$29,914
Composite
$37,816
Hardwood (Ipe)
$51,645
Calibrated to 12 researched sources for Montreal. Before tax. Real quotes vary with site conditions.
📈Price Momentum
Year-over-year~1 year ago
$20,307
Today
$22,013
Deck Building in Montreal is ↑ 8.4% compared to roughly a year ago — about $1,706 more on the average project.
Comparison derived from the year-over-year change rate, not a month-by-month price index. We don't store historical snapshots yet — when we do, this will become a real time series.
🏢Top Deck Build Contractors in Montreal
Verified providersGroupe Ubora - Sunroom & Deck Builders
19100 Route Transcanadienne, Baie-d'Urfé, QC H9X 3S4, Canada
213 reviews
Construction Desparois
4717 Av Bannantyne, Montréal, QC H4G 1E6, Canada
57 reviews
Espace Unik Designer Deck Builder
108 Croissant Michaël, Beaconsfield, QC H9W 2C6, Canada
47 reviews
Les Patios Vigneault Inc.
7525 Boul. LaSalle, LaSalle, QC H8P 1S1, Canada
41 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
In Montreal, deck footings must extend at least 1.4 meters (approximately 55 inches) below grade to reach below the frost line and prevent structural heaving during freeze-thaw cycles.
The City of Montreal charges $9.80 for every $1,000 of project value, with a minimum processing fee of $167.40 for residential properties. For a $25,000 deck, the permit would cost approximately $245.
In 2026, pressure-treated wood decks cost between $45 and $65 per sq ft installed, while mid-grade composite decks range from $65 to $95 per sq ft. Premium composite with glass or aluminum railings can reach $130 per sq ft.
Yes, helical (screw) piles are popular in Montreal due to the 1.4m frost depth requirement. They cost between $800 and $1,500 per pile installed, offering a faster one-day installation compared to the 3-7 days required for traditional concrete curing.
📊Our Methodology
How we collect dataAggregated from 5+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: 1 months ago. Updates run weekly. All costs in CAD.
About this data
Cost figures are estimates synthesized from public market data using AI research and refreshed regularly. Real project costs vary by scope, materials, contractor, and site conditions. Always get verified quotes from licensed contractors for your specific project.
Spotted bad data? Let us know — we'll review and update.