Window Installation Guide Toronto 2026

Window Installation in Toronto: The Complete 2026 Guide

Replacing your windows is one of the most impactful home improvements you can make in Toronto. New windows improve energy efficiency, reduce heating and cooling costs, enhance curb appeal, and increase your home's value. With Ontario's extreme temperature range — from -25 degrees in winter to +35 degrees in summer — choosing the right windows is critical.

Window Replacement Costs in Toronto

Here is what Toronto homeowners can expect to pay for window replacement in 2026:

• Standard vinyl window (installed): $500–$900 per window
• Premium vinyl window (installed): $800–$1,200 per window
• Fibreglass window (installed): $900–$1,500 per window
• Wood window (installed): $1,200–$2,500 per window
• Aluminum window (installed): $700–$1,200 per window
• Full home (15 windows average): $7,500–$18,000

Costs vary based on window size, type, glazing, and complexity of installation (e.g., brick vs. siding exterior, accessibility).

Types of Windows for Toronto Homes

Vinyl Windows: The most popular choice in Toronto. Low maintenance, excellent insulation, affordable. Available in white and various colours. Lifespan: 20–30 years. Fibreglass Windows: Premium option with superior strength and thermal performance. More expensive but extremely durable. Lifespan: 30–50 years. Wood Windows: Beautiful, classic appearance. Excellent insulation but requires regular maintenance (painting, staining). Best for heritage homes. Lifespan: 30+ years with maintenance. Aluminum Windows: Strong and slim-profile but poor thermal performance without a thermal break. Better suited for commercial applications. Lifespan: 20–30 years.

Energy Efficiency Ratings

For Toronto's climate, energy-efficient windows are essential. Look for these specifications:

ENERGY STAR Certified: Windows must meet Canadian ENERGY STAR standards for Zone 2 (Southern Ontario). Look for the ENERGY STAR label. U-Factor: Measures heat loss. Lower is better. Target: U-factor of 1.22 W/m2K or lower for Toronto. Solar Heat Gain Coefficient (SHGC): Measures solar heat transmission. For Toronto, a moderate SHGC (0.20–0.40) balances winter heat gain with summer cooling needs. Triple vs. Double Glazing: Triple-pane windows offer 30–50% better insulation than double-pane but cost 15–25% more. For Toronto winters, triple-pane is recommended for north and west-facing windows. Low-E Coating: A microscopically thin metallic coating that reflects heat. Keeps heat inside in winter and outside in summer. Standard on most quality windows today. Argon or Krypton Gas Fill: Inert gas between panes improves insulation. Argon is standard and cost-effective. Krypton offers better performance at higher cost.

Ontario Rebates and Incentives

Toronto and Ontario homeowners may qualify for window replacement rebates:

Canada Greener Homes Grant: Up to $5,000 for eligible energy efficiency upgrades including windows. Requires a pre- and post-retrofit EnerGuide evaluation. Enbridge Gas Home Efficiency Rebate: Up to $5,000 for insulation, windows, and heating improvements. Can be combined with federal programs. CMHC Green Home Program: Premium refund on mortgage insurance for energy-efficient homes.

Check nrcan.gc.ca and enbridgegas.com for current program details and eligibility.

The Installation Process

Professional window installation in Toronto involves:

• 1. Measurement — Precise measurements of all window openings (each window is custom-ordered)
• 2. Manufacturing — Windows are custom-built to your specifications (4–8 weeks lead time)
• 3. Removal — Old windows are carefully removed, preserving the surrounding wall structure
• 4. Preparation — Window openings are cleaned, repaired if needed, and waterproofed
• 5. Installation — New windows are set, shimmed, levelled, and secured
• 6. Insulation — Low-expansion spray foam fills gaps between the window frame and rough opening
• 7. Exterior Capping — Aluminum capping covers exterior trim for a clean, maintenance-free finish
• 8. Interior Trim — New interior trim (casing) is installed and caulked
• 9. Cleanup — Old windows are removed and the work area is cleaned

Ontario Building Code Requirements

Window installations in Ontario must comply with:

• OBC SB-12 Energy Efficiency: Minimum thermal performance standards for windows
• Egress requirements: Bedroom windows must be operable and large enough for emergency exit (minimum 3.8 sq ft opening)
• Tempered glass: Required within 18 inches of the floor and near doors, tubs, and stairways
• Building permits: Generally required for window replacements that change the size or type of opening

Signs You Need New Windows

Consider replacement if your windows show these signs:

• Drafts — You feel cold air around closed windows in winter
• Condensation between panes — Indicates seal failure and gas leakage
• Difficulty opening or closing — Frames may be warped or hardware worn
• High energy bills — Old windows are a major source of heat loss
• Visible damage — Rotting frames, cracked glass, peeling paint
• Noise — Excessive street noise penetrating through windows
• Single-pane glass — Vastly inferior insulation compared to modern double or triple pane

GTA Service Areas

We install windows across the Greater Toronto Area including Toronto, Mississauga, Brampton, Vaughan, Richmond Hill, Markham, Newmarket, Aurora, Oakville, Burlington, Milton, Ajax, Pickering, and Whitby.

Get Your Free Window Estimate

Planning to replace your windows? Call 289-212-2345 for a free in-home assessment. We will measure your windows, recommend the best options for your home and budget, and provide a detailed written quote.

Related guides: [energy-efficient windows](/blog/energy-efficient-windows-guide), [door installation](/blog/door-installation-replacement-toronto), and [home renovation costs](/blog/home-renovation-costs-toronto-2026).

Frequently Asked Questions

How much does window replacement cost in Toronto?

Standard vinyl window replacement costs $500–$900 per window installed. A full home replacement (15 windows) costs $7,500–$18,000 depending on type and features.

How long does window installation take?

Most homes can be completed in 1–2 days. A full-home window replacement typically takes 1 day for removal and installation, plus a second day for finishing trim and capping.

Are triple-pane windows worth it in Toronto?

Yes, especially for north and west-facing windows. Triple-pane windows offer 30–50% better insulation and significantly reduce winter heating costs. The extra cost is typically recovered in energy savings within 5–7 years.

Do I need a permit for window replacement in Ontario?

Permits are generally required if you are changing the size or type of window opening. Like-for-like replacements (same size) usually do not require a permit.

Can I get rebates for new windows in Toronto?

Yes, the Canada Greener Homes Grant offers up to $5,000 for eligible energy efficiency upgrades including windows. Call 289-212-2345 for help navigating rebate programs.