What is the cost to replace windows in Ottawa?

Window replacement costs in Ottawa typically range from $400-800 per window for standard double-hung vinyl windows, with premium materials reaching $1,200+ per window - but the key isn't just the price, it's ensuring you hire a properly licensed contractor and understand Ottawa's permit requirements.

Ottawa Permit Requirements for Window Replacement

In Ottawa, you generally don't need a building permit for like-for-like window replacement (same size, same opening). However, you do need a permit if you're:

• Changing window sizes or creating new openings


• Replacing basement windows (egress requirements)


• Installing windows in additions or renovations


• Changing from single to multi-family dwelling windows

Contact City of Ottawa Building Code Services at 613-580-2424 or check ottawa.ca/building to confirm your specific situation.

What Affects Window Costs in Ottawa

Material and Quality: Vinyl windows ($400-600) are most common in Ottawa's climate, while wood-clad ($800-1,200) and fiberglass ($600-1,000) offer premium performance. Given Ottawa's temperature swings from -30°C to +35°C, energy efficiency ratings matter significantly for long-term savings.

Size and Style: Standard double-hung windows cost less than specialty shapes, bay windows, or large picture windows. Ottawa's older neighborhoods (Glebe, Westboro, Sandy Hill) often have unique sizing that requires custom work.

Installation Complexity: Main floor windows are straightforward, but second-story or basement installations in Ottawa's varied housing stock (century homes to modern builds) can increase labor costs by 20-40%.

Vetting Window Contractors in Ottawa

WSIB and Insurance Verification: Every legitimate contractor must carry WSIB coverage and liability insurance. Verify WSIB clearance at wsib.ca/clearances - this protects you if someone gets injured on your property.

Get Multiple Detailed Quotes: Reputable Ottawa contractors will provide written estimates including material specifications, labor breakdown, cleanup, and warranty terms. Be wary of door-to-door salespeople or high-pressure tactics common in Ottawa neighborhoods.

Check References Locally: Ask for recent work in your Ottawa area - Kanata contractors understand different challenges than those working in Vanier or Manotick. Drive by recent jobs if possible.

Red Flags to Avoid

Upfront Payment Demands: Legitimate contractors typically ask for 10-15% down, with progress payments. Ontario's Construction Lien Act requires you hold back 10% for 60 days after completion.

No Written Contract: Every window job should have a detailed contract specifying materials (brand, model, energy ratings), timeline, cleanup, and warranty coverage.

Unusually Low Bids: If one quote is dramatically lower, verify they're including proper flashing, insulation, and finishing work essential for Ottawa's climate.

Timeline and Seasonal Considerations

Window replacement in Ottawa typically takes 2-6 weeks from order to installation, depending on custom sizing. Spring and fall are peak seasons, so book early. Winter installations are possible but may cost 10-20% more due to heating and weather protection requirements.

For current permit fees and specific requirements for your Ottawa property, visit ottawa.ca/building or call 613-580-2424. The Building Code Services team can clarify whether your window project requires permits and what inspections may be needed.