Cost to Replace Windows in Canada

Cost to Replace Windows in Canada: 2026 Pricing Guide

Window replacement typically costs between $400 and $1,200 per window installed in Canada.

Window replacement is one of the most common home improvement projects Canadian homeowners undertake. Whether you are upgrading for energy efficiency in Ontario, addressing weather damage in British Columbia, or refreshing your home's curb appeal in Alberta, understanding the true cost of window replacement is essential for budgeting accurately. With energy rebates available through federal and provincial programs, the total cost can be significantly reduced when you choose the right windows and installer.

In 2026, the average cost to replace windows in Canada ranges from $300 to $1,200 CAD per window, depending on type, material, size, and your location. For a typical home replacing 8–10 windows, expect a total investment between $3,500 and $15,000 CAD.

Factors That Affect Window Replacement Costs in Canada

Window type, frame material, and glazing options all significantly affect the final price.

1. Window Type and Style

The style of window you choose significantly impacts the overall cost:

Single-Hung Windows: $250–$600 per window. These classic windows feature one movable sash and are the most affordable option.
Double-Hung Windows: $300–$800 per window. Both sashes move, offering improved ventilation and easier cleaning.
Casement Windows: $350–$900 per window. Side-hinged windows that crank open, popular for their clean lines and energy efficiency.
Bay or Bow Windows: $600–$2,000 per window. Multi-panel curved designs that add visual interest and interior space.
Sliding Glass Doors: $800–$3,000 per unit. Larger installations that require more materials and labour.
Picture Windows: $400–$1,500 per window. Fixed, non-opening windows ideal for maximizing views.

2. Window Material

The frame material you select affects both cost and performance:

Vinyl Windows: $250–$700 per window. The most popular choice for Canadian homes due to affordability, low maintenance, and decent insulation properties. Vinyl doesn't require painting and resists weathering well.
Wood Windows: $500–$1,500 per window. Classic and beautiful but require regular maintenance. Popular in heritage homes across Ontario and Quebec.
Fibreglass Windows: $600–$1,800 per window. Extremely durable and energy-efficient, ideal for harsh Canadian climates. Increasingly popular in Alberta and BC.
Aluminium Windows: $300–$900 per window. Lightweight and modern-looking but offer less insulation than other materials. More common in commercial applications.
Composite Windows: $700–$2,000 per window. Premium option combining multiple materials for optimal performance and aesthetics.

3. Glass Type and Coating

Window glazing significantly impacts energy efficiency and cost:

Single-Pane Glass: Basic option but poor insulation. Rarely recommended for Canadian climates.
Double-Pane Glass (Low-E Coating): Standard in Canada, adds $30–$100 per window. Reduces heat transfer and UV damage.
Triple-Pane Glass: Premium option, adds $100–$300 per window. Excellent for extreme climates like northern Alberta or BC's interior.
Argon or Krypton Gas Fill: Adds $50–$150 per window. Improves insulation between panes.

4. Window Size and Quantity

Larger windows cost more per unit, but replacing multiple windows often qualifies you for contractor discounts. A 3-foot-by-4-foot standard window costs less than a 4-foot-by-6-foot unit. Many contractors offer 10–20% discounts when replacing 8+ windows.

5. Installation Complexity

Labour costs vary based on difficulty:

Standard Installations: Straightforward replacements in accessible locations. Labour typically runs $100–$300 per window.
Complex Installations: Second-storey windows, custom openings, or structural adjustments. Labour can reach $400–$800 per window.
Exterior Work: Scaffolding, ladder rentals, or hazardous access add $500–$2,000 to your project.

6. Regional Price Variations

Window replacement costs vary significantly across Canadian provinces:

Ontario: $350–$900 per window. Toronto and the GTA tend toward the higher end due to urban market rates.
Quebec: $300–$800 per window. More competitive pricing, especially in Montreal. French-speaking contractors often offer competitive rates.
British Columbia: $400–$1,100 per window. Vancouver and the lower mainland are pricier; interior BC offers better value.
Alberta: $350–$950 per window. Calgary and Edmonton follow similar pricing; rural areas may be slightly lower.

Additional Costs to Consider

Permits and Inspections: Most window replacements don't require permits, but some municipalities (especially in Ontario and BC) may require them for exterior work. Budget $50–$300 for permit fees.

Removal and Disposal: Old window disposal typically costs $20–$50 per window. Some contractors include this; others charge separately.

Interior Finishing: After installation, you may need drywall repair, caulking, trim work, or repainting. Budget an additional $100–$400 per window for finishing work.

Weatherproofing: Proper sealing and insulation around new windows prevent drafts and moisture issues. This typically costs $50–$150 per window and is essential in Canadian climates.

Ways to Save on Window Replacement

Replacing multiple windows in one project reduces the per-unit cost of materials and labour.

Get Multiple Quotes: Contact three to five local contractors. Prices vary widely, and you may find significant savings by comparing estimates.

Choose Vinyl Over Premium Materials: Modern vinyl windows are highly energy-efficient and affordable. Unless you have specific aesthetic requirements, vinyl often provides the best value.

Replace Windows in Batches: Contractors offer bulk discounts. Replacing all windows at once is cheaper than doing a few at a time.

Look for Seasonal Discounts: Fall and early spring (shoulder seasons) often feature better pricing than summer. Winter may offer discounts too, though weather complicates installation.

Check for Manufacturer Rebates: Many Canadian window manufacturers offer seasonal rebates. These can save you $50–$200 per window.

Upgrade Your Glazing, Not the Frame: If your existing frames are solid, upgrading to better glass (double or triple-pane) is more affordable than full replacement.

Energy Efficiency and Long-Term Savings

Energy Star certified windows can reduce heating and cooling costs by up to 15% annually.

While window replacement requires upfront investment, it pays dividends through lower energy bills. New ENERGY STAR-certified windows can reduce heating and cooling costs by 10–15% annually. In Canadian climates with long winters, this translates to savings of $200–$600 per year, depending on your home size and insulation.

Over 15–20 years, energy savings often exceed the initial replacement cost, making this a smart long-term investment.

Frequently Asked Questions

A reputable window company will provide a written warranty on both product and installation.

How long does window replacement take?

A typical window replacement takes 30–60 minutes per window for experienced installers. A full-home project with 8–10 windows usually requires 2–5 days, depending on complexity and weather conditions.

Do I need new windows if the existing ones are just foggy?

Not necessarily. Foggy windows indicate failed seals between panes, but the frame may still be serviceable. Ask a contractor about seal replacement or reglazing - often a $150–$400 option per window that's cheaper than replacement.

What's the difference between replacement and new construction windows?

Replacement windows are designed to fit existing frames and openings. New construction windows are used when building walls from scratch or during major renovations. Replacement windows are appropriate for most home renovation projects and cost less than new construction options.

Are there any government rebates for window replacement in Canada?

Some provinces and municipalities offer rebates for energy-efficient upgrades. Check with your local utility company and provincial government. The federal government occasionally offers grants for home energy improvements, so research current programs in your area.

Conclusion: Get Expert Help for Your Window Replacement Project

Window replacement is a significant investment that impacts your home's comfort, appearance, and energy efficiency. Understanding the factors affecting cost - material, style, size, and installation complexity - helps you make informed decisions and budget effectively.