How much should I expect to spend on my windows?

1. New Construction: Installing Windows in a New-Build

When building a home in Ontario, the cost of windows is a crucial budget line. Here's what you can expect:

(Disclaimer: The cost estimates provided in this article are for informational purposes only and are based on publicly available data as of 2025. Actual prices may vary depending on factors such as materials, project scope, contractor rates, and location within Ontario.)

Window Type / Project Size	Estimated Cost (Installed)
Standard double/single-hung, casement, awning, slider	$550 – $1,100 per window c
Bay or bow windows	$2,500 – $6,500+
Sliding patio doors (new)	$1,700 – $5,000
New-build whole house (15–25 windows)	$12,000 – $28,000+

Key cost shapers:

• Material: vinyl is budget-friendly (~$400–$800), wood and fiberglass raise costs 

• Energy efficiency upgrades (triple-glazing, Low‑E, argon gas): add $150–$300 per window 

• Labour and access: quality install matters—expect $100–$300 per window, rising if working on upper floors or using full-frame installs 

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2. Remodelling / Replacement: Swapping Out Old Windows

Replacing existing windows in an Ontario home tends to cost differently:

• Vinyl window replacement: $400–$800 installed 

• Wood windows: $800–$1,500 per unit .

• Aluminum: $600–$1,100 installed 

• Casement / awning: typically $550–$1,200 per window 

• Bay/Bow: $1,200–$6,500 depending on size and complexity 

• Picture and specialty shapes: $300–$1,200+ per window 

Full-home replacement:

• 10 windows: $8,000–$11,000 (vinyl) 

• 15–20 windows: $12,000–$18,000;

• 20–25 windows: $15,000–$22,000 

  
  

3. Real Homeowner Experiences

Ontario homeowners share real cases from forums:

“I replaced most of my windows last summer. It was $13k for 13 windows (including a sliding door and picture window)… got back a $4,000 rebate.”

Got two quotes… I’m paying 29k taxes included (before rebates) for 18 openings. Triple pane windows.”

These examples illustrate that custom specs (e.g. triple-pane, designer frames) and rebates drive large variations in final cost.

4. Hidden/Extra Costs to Factor In

• Labour & disposal: $40–$80/hr labour; expect 20–30% of total cost . Disposal ~ $20–$50 per window 

• Permit fees: Range from $20–$500 depending on municipality 

• Trim, casing, repairs: Add $50–$300 each 

• Custom features (decorative grilles, etching): Add $50–$200 per window 

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5. Financing & Incentives in Ontario

• Canada Greener Homes Grant: Previously offered up to $5,000 per home—now fully subscribed 

• Canada Greener Homes Loan: Interest-free loans up to $40,000 for energy-saving upgrades 

• Provincial rebate: $100 per window or door under select programs 

  
  

✅ Quick Takeaways

1. New construction windows in Ontario typically run $550–$1,100 each, spiking to $2,500–$6,500 for bay/bow styles.

2. Remodel/replacement costs vary from $400 (basic vinyl) to $1,500+ (fiberglass/wood upgrades) per window.

3. Whole-house replacements (20–25 units): $15,000–$30,000+ depending on your options.

4. Costs influenced by materials, style, energy features, labour, and extras like trim or permits.

5. Rebates and loans can significantly ease the burden for energy-efficient projects.

   
   

🚀 What to Do Next

• 📋 Get at least three detailed quotes—ensure specs match across providers.

• 🔍 Ask about energy efficiency upgrades (Low-E, argon, triple-pane)—they boost savings and may qualify for incentives.

• 🗓️ Time your install—spring and early fall can reduce pricing compared to high-demand seasons.

• 🧾 Account for permits, trim, disposal, contingencies (~10–20%) in your total budget.