Window Replacement Cost in London (2026)
Average cost in London
$8,000 — $30,000
$600 — $1,500 per sq ft
Cost Breakdown
ItemizedVinyl, fiberglass, or wood units including glazing
65%
Professional fitting, sealing, and insulation
25%
Removal and recycling of old window units
5%
Interior casing and exterior capping/trim
4%
Municipal fees for structural modifications
1%
HST at 13%
📋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
$4,040 — $6,060
Based on 12 sources and market data for London. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$14,526
Today
$15,325
Window Replacement in London is ↑ 5.5% compared to roughly a year ago — about $799 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 London
Verified providersRiverbend Windows & Doors Inc.
3392 Wonderland Rd S Bldg 2 Unit 2, London, ON N6L 1A8, Canada
127 reviews
Douglas Window & Door Inc.
515 Hamilton Rd, London, ON N5Z 1S3, Canada
288 reviews
Blake Exteriors Window and Door
127 Ann St, London, ON N6A 1R2, Canada
260 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
For a standard London home with 10 to 15 windows, homeowners typically pay between $8,000 and $18,000 for quality vinyl replacements. Premium materials like fiberglass or wood can push this total above $30,000.
Yes. Triple-pane windows reduce heat loss by 30-40% compared to double-pane, which is significant for London's cold winters. In 2026, the price premium for triple-pane has narrowed to approximately $120–$180 per window.
Homeowners can access Enbridge Gas rebates of $40–$125 per window for ENERGY STAR certified products. While the federal Greener Homes Grant has seen pauses, local utility incentives often provide up to $5,000 for major energy-efficiency upgrades.
Most window replacement projects in London are completed in 1 to 3 days. A professional crew can typically install 10 to 15 windows in just 1.5 days, including cleanup and disposal.
📊Our Methodology
How we collect dataAggregated from 8+ 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.