Deck Building Cost in Montreal (2026)
Average cost in Montreal
$7,500 — $55,000
$45 — $115 per sq ft
Cost Breakdown
ItemizedSkilled carpentry and installation
50%
Decking boards, framing, and hardware
40%
Excavation and old deck removal
5%
Plans and structural stamps
3%
Municipal processing fees
2%
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 Cost
InteractiveEstimated Cost
$5,792 — $8,688
Based on 8 sources and market data for Montreal. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$19,389
Today
$21,038
Deck Building in Montreal is ↑ 8.5% compared to roughly a year ago — about $1,648 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
200 reviews
Florida Deck and Landscaping
3551 Bd Saint-Charles #309, Kirkland, QC H9H 4S3, Canada
82 reviews
Bonbois MTL Inc. - Construction, Terrasse, Patio, Pergolas, Clôtures Montréal
2186 Rue Nicolet, Montréal, QC H1W 3L2, Canada
55 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 2026, Montreal charges $9.80 for every $1,000 of projected work value. For a residential building, the minimum fee is $167.40, regardless of the project size.
Pressure-treated wood decks typically cost between $45 and $70 per sq ft installed, while composite decks (like Trex) range from $75 to $115 per sq ft due to higher material costs and specialized fasteners.
The Direction de l'urbanisme currently reports processing times of 4 to 14 weeks for residential building permits, which must be factored into the project timeline before construction begins.
Professional deck contractors in the Montreal area charge between $25 and $50 per square foot for labor, reflecting the 8.5% year-over-year increase in residential construction wages reported by StatCan.
📊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: 4 days 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.