Window Replacement Cost in London (2026)
Average cost in London
$8,000 — $25,000
$600 — $2,000 per sq ft
Cost Breakdown
ItemizedWindow units, frames, and glazing
65%
Professional installation and fitting
25%
Removal and recycling of old units
5%
Interior casing and exterior caulking
5%
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 9 sources and market data for London. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$15,162
Today
$16,147
Window Replacement in London is ↑ 6.5% compared to roughly a year ago — about $986 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
128 reviews
Douglas Window & Door Inc.
515 Hamilton Rd, London, ON N5Z 1S3, Canada
299 reviews
Blake Exteriors Window and Door
127 Ann St, London, ON N6A 1R2, Canada
268 reviews
Forest City Window & Door Ltd
1708 Gore Rd, London, ON N5W 5L5, Canada
165 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, London homeowners typically pay between $600 and $2,000 per window installed. Standard vinyl windows are at the lower end ($600-$950), while premium fiberglass or triple-pane units can exceed $1,400 per unit.
Yes, London residents can access the Home Renovation Savings Program, which offers up to $100 per window until November 2026. Additionally, Enbridge Gas customers may qualify for larger energy-efficiency rebates of up to $5,000 for whole-home upgrades.
Triple-pane windows generally cost 20% to 30% more than double-pane options. However, they are highly recommended for London's climate as they can reduce heating and cooling costs by an additional 20-30%.
Scheduling your project during the 'off-season' in late autumn or winter can result in discounts of 10% to 20% as local contractors look to fill their schedules during slower months.
📊Our Methodology
How we collect dataAggregated from 9+ 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: 3 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.