Window Replacement Cost in London (2026)
Average cost in London
$8,000 — $25,000
$600 — $1,500 per window
Cost Breakdown
ItemizedWindows, glass, and hardware
60%
Installation and site prep
30%
Removal of old windows
5%
Caulking, trim, and insulation
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 8 sources and market data for London. Actual costs may vary depending on specific project requirements.
🏢Top Window Replace Contractors in London
Verified providersDouglas Window & Door Inc.
515 Hamilton Rd, London, ON N5Z 1S3, Canada
277 reviews
Riverbend Windows & Doors Inc.
3392 Wonderland Rd S Blg 2 Unit 2, London, ON N6L 1A8, Canada
128 reviews
Blake Exteriors Window and Door
127 Ann St, London, ON N6A 1R2, Canada
257 reviews
Forest City Window & Door Ltd
1708 Gore Rd, London, ON N5W 5L5, Canada
155 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 typical London home with 10 to 15 windows, a full replacement usually costs between $8,000 and $18,000. This depends heavily on the frame material, with vinyl being the most cost-effective, and whether you choose double or triple-pane glass.
On average, you can expect to pay between $600 and $1,200 per window fully installed for standard vinyl double-hung or casement windows. Premium materials like fiberglass or custom bay windows can push the cost to $1,500 or more per unit.
Yes, London homeowners can take advantage of provincial and federal programs. Programs like the Canada Greener Homes Loan and Enbridge Gas rebates can offer up to $5,000 or $40-$125 per qualifying ENERGY STAR window, significantly offsetting the initial costs.
Labor typically accounts for about 30% of the total project cost. In Ontario, window installers generally charge between $100 and $300 per hour, and a standard window takes roughly 1 to 2 hours to install, meaning labor costs around $200 to $600 per window.
📊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: today. Updates run weekly. All costs in CAD.