Window Replacement Cost in Montreal (2026)
Average cost in Montreal
$8,000 — $18,500
$500 — $2,000 per sq ft
Cost Breakdown
ItemizedVinyl frames, ENERGY STAR glass, hardware
65%
Installation, removal, and sealing
25%
Removal of old units and site remediation
5%
Municipal fees and documentation
5%
GST+QST at 14.98%
📋What's Included
ScopeTypically Includes
- Standard vinyl double-hung windows
- Removal of old windows
- Installation & insulation
- Interior trim
- Cleanup
Typically Excludes
- Custom or specialty shapes
- Triple-pane or premium glass
- Exterior trim or cladding
- Structural modifications
- Bay or bow windows
Based on replacing 10 standard-size windows with vinyl double-hung.
🧮Estimate Your Cost
InteractiveEstimated Cost
$3,920 — $5,880
Based on 12 sources and market data for Montreal. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$12,604
Today
$13,171
Window Replacement in Montreal is ↑ 4.5% compared to roughly a year ago — about $567 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 Window Replace Contractors in Montreal
Verified providersÉLIT TECH Portes Et Fenêtres
6500 Rte Transcanadienne, Saint-Laurent, QC H4T 1X4, Canada
334 reviews
Innovation Portes et Fenêtres
2113 St Regis Blvd #200, Dollard-Des Ormeaux, QC H9B 2M9, Canada
120 reviews
Timberline Portes et Fenêtres
946 Rue Bégin, Montréal, QC H4M 2N5, Canada
84 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
Homeowners can access the Rénoclimat program, which offers $150 per rough opening for ENERGY STAR certified windows. Additionally, Hydro-Québec's LogisVert program provides $80 per square metre for high-efficiency windows and patio doors. The federal Canada Greener Homes Loan also offers up to $40,000 in interest-free financing.
Yes, most Montreal boroughs require a permit even if dimensions remain the same. The cost is typically calculated at $9.80 per $1,000 of work value, with a minimum residential fee of approximately $167.40 in 2026.
Upgrading to triple-pane glass, which is highly recommended for Montreal's climate, typically adds 15% to 20% to the base unit cost, or roughly $200 to $400 per window, but can reduce annual heating costs by 7% to 12%.
A retrofit (insert) installation is more budget-friendly, ranging from $300 to $850 per unit. A full-frame replacement, which involves removing the entire existing frame and brickmould, costs between $500 and $1,500 per unit but offers superior insulation and longevity.
📊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: 2 weeks 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.