Window Replacement Cost in Oshawa (2026)
Average cost in Oshawa
$8,000 — $30,000
$450 — $1,800 per sq ft
Cost Breakdown
ItemizedWindow units (Vinyl/Fiberglass/Wood)
60%
Professional installation and sealing
25%
Interior casing and exterior brickmould
7%
Removal of old units and site debris
5%
Municipal fees and project management
3%
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
$4,360 — $6,540
Based on 8 sources and market data for Oshawa. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$14,351
Today
$15,140
Window Replacement in Oshawa is ↑ 5.5% compared to roughly a year ago — about $789 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 Oshawa
Verified providersTotal Home Windows & Doors
1277 Wilson Rd N, Oshawa, ON L1K 2B8, Canada
76 reviews
Stone River Windows Doors
391 Marwood Dr, Oshawa, ON L1H 7P8, Canada
67 reviews
Panorama Windows and Doors Oshawa
21 Simcoe St S, Oshawa, ON L1H 4G1, Canada
105 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 Oshawa, a building permit is not required if you are replacing windows with the same size units. However, if you are enlarging the opening or making structural changes, a permit is mandatory, with fees typically starting around $150 plus a 3% annual increase effective January 2026.
Upgrading from double-pane to triple-pane glass in 2026 typically adds between $150 and $400 per window unit. While the upfront cost is higher, it can reduce annual energy bills by approximately 20-30% in the Oshawa climate.
For a typical 3-bedroom detached home with 10 to 15 windows, homeowners should budget between $11,000 and $18,000 for quality vinyl replacements. Premium fiberglass or wood-clad projects for the same home size can exceed $25,000.
Yes, homeowners can access the Enbridge Gas Home Efficiency Rebate Plus (HER+) and federal incentives, which can provide between $40 and $125 per window for ENERGY STAR certified models, potentially totaling up to $5,000-$10,000 for whole-home upgrades.
📊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.