This window replacement cost calculator estimates the cost of replacing windows and exterior doors, supplied and installed (low, typical and high, before tax), based on the number of openings, the material and the installation method. Reference case, data reviewed in November 2026: 10 white PVC double-glazed windows installed as inserts cost about $10,800 before tax in Quebec ($8,000 to $13,500), $7,500 before tax in Ontario ($5,000 to $11,000), $8,250 before tax in British Columbia ($5,500 to $12,000), and $7,900 before tax in Alberta ($5,250 to $11,500). Prices currently cover: Quebec, Ontario, British Columbia and Alberta. The detailed budget is emailed to you as a PDF.
To receive your detailed budget, use the “Email me this budget (PDF)” form on renoclair.ca.
Free and independent toolBefore tax. With taxes (typical):
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Typical costs by province (before tax)
| Window & door (supplied and installed) | Low | Typical | High |
|---|---|---|---|
| Quebec: White PVC, Low-E argon double glazing | $800 | $1,075 | $1,350 |
| Quebec: Fibreglass, Low-E argon double glazing (estimate) | $880 | $1,290 | $1,755 |
| Quebec: Hybrid PVC / aluminum, double glazing | $1,000 | $1,325 | $1,650 |
| Quebec: Hybrid or PVC, ENERGY STAR Most Efficient triple glazing | $1,200 | $1,550 | $1,900 |
| Quebec: Thermally broken aluminum or architectural wood | $1,350 | $1,750 | $2,150 |
| Quebec: Full-frame “brick-to-brick” surcharge (per opening) | $180 | $250 | $320 |
| Quebec: Insulated steel entry door system | $1,800 | $2,500 | $3,200 |
| Quebec: 6 ft sliding patio door | $1,900 | $2,650 | $3,400 |
| Quebec: Bay window or custom grand format opening | $1,500 | $2,150 | $2,800 |
| Quebec: Basement egress cutout & well (concrete cut) | $1,600 | $2,250 | $2,900 |
| Ontario: White PVC, Low-E argon double glazing | $500 | $750 | $1,100 |
| Ontario: Fibreglass, Low-E argon double glazing (estimate) | $550 | $900 | $1,430 |
| Ontario: Hybrid PVC / aluminum, double glazing | $650 | $950 | $1,400 |
| Ontario: Hybrid or PVC, ENERGY STAR Most Efficient triple glazing | $850 | $1,250 | $1,850 |
| Ontario: Thermally broken aluminum or architectural wood | $1,250 | $1,850 | $2,800 |
| Ontario: Full-frame “brick-to-brick” surcharge (per opening) | $150 | $220 | $320 |
| Ontario: Insulated steel entry door system | $1,400 | $2,200 | $3,500 |
| Ontario: 6 ft sliding patio door | $2,200 | $3,200 | $4,800 |
| Ontario: Bay window or custom grand format opening | $1,600 | $2,500 | $3,800 |
| Ontario: Basement egress cutout & well (concrete cut) | $1,800 | $2,600 | $3,800 |
| British Columbia: White PVC, Low-E argon double glazing | $550 | $825 | $1,200 |
| British Columbia: Fibreglass, Low-E argon double glazing (estimate) | $605 | $990 | $1,560 |
| British Columbia: Hybrid PVC / aluminum, double glazing | $700 | $1,050 | $1,550 |
| British Columbia: Hybrid or PVC, ENERGY STAR Most Efficient triple glazing | $950 | $1,375 | $2,000 |
| British Columbia: Thermally broken aluminum or architectural wood | $1,350 | $1,950 | $2,950 |
| British Columbia: Full-frame “brick-to-brick” surcharge (per opening) | $180 | $260 | $360 |
| British Columbia: Insulated steel entry door system | $1,600 | $2,500 | $3,900 |
| British Columbia: 6 ft sliding patio door | $2,400 | $3,500 | $5,200 |
| British Columbia: Bay window or custom grand format opening | $1,750 | $2,700 | $4,100 |
| British Columbia: Basement egress cutout & well (concrete cut) | $2,000 | $2,900 | $4,200 |
| Alberta: White PVC, Low-E argon double glazing | $525 | $790 | $1,150 |
| Alberta: Fibreglass, Low-E argon double glazing (estimate) | $580 | $950 | $1,495 |
| Alberta: Hybrid PVC / aluminum, double glazing | $670 | $1,000 | $1,480 |
| Alberta: Triple-glazed ENERGY STAR® (cold climate) | $900 | $1,320 | $1,900 |
| Alberta: Thermal-break aluminum or architectural wood | $1,280 | $1,850 | $2,800 |
| Alberta: Full-frame installation (per window) | +$170 | +$245 | +$340 |
| Alberta: Insulated steel entry door | $1,550 | $2,400 | $3,750 |
| Alberta: 6-ft sliding patio door | $2,300 | $3,350 | $4,950 |
| Alberta: Bay or architectural window | +$1,680 | +$2,580 | +$3,900 |
| Alberta: Basement egress cutout & well (concrete cut) | $1,950 | $2,800 | $4,050 |
Before tax, November 2026. Rates cross-checked across verified window manufacturers, installers and cost guides in Quebec and Ontario. Taxes are applied separately based on province (14.975% GST + QST in Quebec, 13% HST in Ontario, 5% GST in British Columbia — 7% PST on materials is paid by the contractor and embedded in installed prices, and 5% GST only in Alberta with no PST).
What is included and what is not
Included
- Custom fabrication to exact rough opening dimensions
- Removal of existing units, shimming and levelling
- Low-expansion polyurethane foam insulation and exterior commercial caulking
- Full insect screens and site cleanup / debris disposal
- Doors or options selected
Not included
- Structural load-bearing lintels and major exterior masonry repair
- Painting interior wood trim
- Between-glass blinds ($400 to $900 per unit)
- Municipal building permit if opening size is enlarged
- Reserve of about 10% for rotten wood discovered at tear-out, and taxes
How the window replacement cost calculator calculates your estimate
The calculator adds the supplied-and-installed unit cost of each window for the range selected in your province, the full-frame installation surcharge if chosen, and any exterior doors or special openings. In Quebec, white PVC double-glazed windows average $800 to $1,350 installed (typical $1,075); in Ontario, white PVC double-glazed windows average $500 to $1,100 installed (typical $750); in British Columbia, white PVC double-glazed windows average $550 to $1,200 installed (typical $825).
Amounts are before tax and rounded ($50 below $10,000, $100 above). Fibreglass rows are estimates: the white vinyl rate plus 10% (low), 20% (typical) and 30% (high), based on prices published by Canadian window makers and installers; see our vinyl vs fibreglass guide. The calculator also shows the typical amount with applicable sales tax (14.975% GST + QST in Quebec, 13% HST in Ontario, 5% GST in British Columbia, 5% GST only in Alberta). Items marked as RénoClair assumptions are listed as such in the PDF.
Rebates and financial aid
British Columbia – Home Renovation Rebate (Better Homes BC): $100 per window or door that meets the program U-factor requirement (1.22 W/m²·K or lower), up to $2,000 per home, for work invoiced on or after October 15, 2026, by a licensed contractor with a GST number and a BC business licence. The program is not available in the City of Vancouver. The program site was not being updated during the provincial election period, so confirm current rules at betterhomesbc.ca before you sign (read November 14, 2026). The CleanBC Energy Savings Program no longer covers windows and doors since July 6, 2026.
Alberta – Clean Energy Improvement Program (CEIP): Alberta has no active province-wide cash rebate for windows as of late 2026, but participating municipalities (Calgary, Edmonton, St. Albert, Canmore, Lethbridge, etc.) offer PACE financing up to $50,000 through CEIP for qualifying ENERGY STAR® windows and doors, repaid via property taxes.
Ontario – Energy Efficiency Programs: Home Renovation Savings, energy assessment stream (Save on Energy & Enbridge Gas): $100 per rough opening for ENERGY STAR certified windows or doors, with a minimum of 3 windows (or 1 door or sliding door), assessments before and after the work and at least two upgrades (homerenovationsavings.ca, read on November 14, 2026). Deadlines for the 2026 program year: the post-retrofit assessment must be booked by November 30, 2026 and completed within 180 days of the pre-retrofit assessment or by December 31, 2026, whichever comes first. The City of Toronto (HELP program) and City of Ottawa (Better Homes Loan) offer low-interest financing repaid through property taxes.
Quebec – Rénoclimat: $300 per window that is ENERGY STAR Most Efficient, up to $4,500 for a single-family house and $6,000 for a multi-unit building. Montreal RénoPlex provides $410 per window for certain eligible 2- to 5-unit plexes.
Permits, licences and rules
- Alberta (NBC(AE) 2023 & OHS Code): Retrofit window replacement within existing rough openings does not require a municipal building permit in Calgary or Edmonton. Enlarging an opening or cutting concrete for a basement egress window (minimum 0.35 m² / 3.77 sq ft unobstructed opening) requires a municipal permit. Pre-1990 homes require asbestos checks before cutting drywall or stucco. Contractors taking deposits require a Prepaid Contracting Business Licence, and direct home contracts include a 10-day cooling-off period.
- British Columbia (BCBC 2024 / VBBL & WorkSafeBC): Retrofit window replacement within existing rough openings does not require a municipal building permit in BC (Vancouver, Surrey, Burnaby, Richmond, Victoria). Enlarging an opening or cutting concrete for a basement window requires a building permit, structural lintel sign-off, and BC Building Code compliant bedroom egress dimensions (minimum 0.35 m² / 3.77 sq ft open area). In strata buildings, strata council written authorization is required before exterior alteration. For homes built before 1990, WorkSafeBC mandates hazardous material testing before cutting drywall or exterior stucco. Direct sales contracts signed at home include a mandatory 10-day cooling-off cancellation period under the BPCPA.
- Ontario (OBC & Consumer Protection): Replacing windows within existing rough openings requires no municipal building permit across Ontario (Toronto, Ottawa, Mississauga, Brampton, Hamilton, London). Cutting new openings or enlarging existing ones requires an OBC building permit and lintel review. Bedroom egress windows must provide at least 0.35 m² (3.8 sq ft) of openable area with no dimension under 380 mm (15 in). Unsolicited door-to-door sales are banned, and home contracts include a 10-day cooling-off cancellation period.
- Quebec (RBQ & OPC): The installer must hold RBQ subclass 8.0 (door and window contractor) or general contractor licence (1.1.1 to 1.3). Bedroom egress openings require at least 0.35 m² of clear opening. Direct home contracts include a 10-day cooling-off cancellation period (OPC).
Which provinces are covered?
Prices currently cover: Quebec, Ontario, British Columbia and Alberta. Taxes (14.975% GST + QST in Quebec, 13% HST in Ontario, 5% GST in BC, 5% GST only in Alberta), local building regulations, permits, and provincial rebates or financing are automatically factored in based on your selection.
Limitations
This is a planning estimate, not a quote. It does not see the condition of your home, regional price differences or hidden problems; only a written quote after a visit gives the price of your work. The result cannot be printed from the page: the detailed budget is sent to you as a PDF by email, after you enter your address and give your consent.
Sources, review date and data version
- Data reviewed in November 2026; next review planned for February 2027.
- Price sources: verified window manufacturers, installers, and retail suppliers in Quebec, Ontario, and British Columbia across multiple independent domains.
- Data version:
2026.Q4-windows-2. Methodology: Sources and methodology.
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