How Much Does Window & Door Replacement Cost in Ontario?
Window replacement costs in Ontario vary by window type (casement, double-hung, bay/bow), material (vinyl, fibreglass, wood-clad), and Energy Star rating. Vinyl frames dominate Ontario installs due to their cost and performance in our climate. Budget separately for interior trim finishing, especially in older homes.
Quick Price Summary
Average window & door replacement job in Ontario costs around $4,600 CAD. Actual costs depend on scope, materials, and your city.
| Service | Low | Average | High | Unit |
|---|---|---|---|---|
| Window Replacement | $500 | $900 | $1,800 | per window installed |
| Entry Door | $1,500 | $3,000 | $6,000 | installed |
| Patio Sliding Door | $2,000 | $3,500 | $6,000 | installed |
| Full House Windows | $8,000 | $15,000 | $30,000 | average home |
| Window Frame Repair | $300 | $600 | $1,200 | per window |
All prices in Canadian dollars (CAD). Updated February 2026. Prices vary by city and project scope.
Window & Door Replacement Cost Ranges
What Affects Window & Door Replacement Pricing?
- 1Number of windows and glass size
- 2Window type (casement costs more than double-hung)
- 3Frame material (vinyl vs. fibreglass vs. wood-clad)
- 4Energy Star tier (Good vs. Better vs. Best for Zone C)
- 5Rough opening changes requiring permits and framing
- 6Interior and exterior trim and caulking
- 7Second storey access (ladder work or scaffolding)
When Are Window & Door Replacement Prices Lowest?
October-February — installers discount to keep crews working and factories are faster
April-June — lead times stretch to 8-12 weeks for custom windows
How to Save on Window & Door Replacement Work
- Get quotes from 3 installers — window pricing varies 30-50% between companies
- Vinyl windows deliver 90% of fibreglass performance at 50-60% of the cost
- The Canada Greener Homes Grant offers up to $250/window — get a pre-assessment
- Replace all windows at once — you pay for one mobilization and disposal trip
- Avoid bay and bow windows if budget is tight — they cost 3-4x a standard window
Payment Schedule & Protection
Recommended: 10-15% deposit, progress payments tied to milestones, 10% holdback until completion
Ontario Law: Ontario's Construction Act provides a 10% holdback right on construction projects. Read the Construction Act →
Licensing: No mandatory Ontario licence, but installations should follow OBC. Window and door replacements in Ontario should comply with Ontario Building Code energy efficiency requirements. Look for Energy Star certified products and installers with manufacturer training. Building permits are required for structural window openings.
Frequently Asked Questions — Window & Door Replacement Costs
- How much does window & door replacement work cost in Ontario?
- Window Replacement: $500-$1,800 (per window installed). Entry Door: $1,500-$6,000 (installed). Patio Sliding Door: $2,000-$6,000 (installed). Full House Windows: $8,000-$30,000 (average home). Window Frame Repair: $300-$1,200 (per window). All prices are in CAD and approximate for Ontario.
- What factors affect window & door replacement pricing in Ontario?
- Number of windows and glass size. Window type (casement costs more than double-hung). Frame material (vinyl vs. fibreglass vs. wood-clad). Energy Star tier (Good vs. Better vs. Best for Zone C). Rough opening changes requiring permits and framing. Interior and exterior trim and caulking. Second storey access (ladder work or scaffolding).
- When is the cheapest time to hire a window & door replacement contractor?
- Prices typically drop during: October-February — installers discount to keep crews working and factories are faster. Prices rise during: April-June — lead times stretch to 8-12 weeks for custom windows.
- How can I save money on window & door replacement work?
- Get quotes from 3 installers — window pricing varies 30-50% between companies. Vinyl windows deliver 90% of fibreglass performance at 50-60% of the cost. The Canada Greener Homes Grant offers up to $250/window — get a pre-assessment.
- Should I get multiple quotes?
- Always get at least 3 written quotes. Compare scope, materials, timeline, and warranty — not just price. The cheapest quote often means corners cut.
- How much deposit should I pay?
- 10-15% deposit, progress payments tied to milestones, 10% holdback until completion. Ontario's Construction Act provides a 10% holdback right on construction projects.
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