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window solutions

Canadian-Made, Energy-Efficient Windows Built for Southern Ontario

  • Clear Pricing
  • Realistic Timelines
  • Quality Products
  • Expert Installation
  • 25-Year Warranty
Custom sizes. Canadian materials. Professional installation. 25-year all-inclusive warranty.
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NTI WINDOWS & DOORS

PROUDLY CANADIAN OPERATED & OWNED

NTI WINDOWS & DOORS

PROUDLY CANADIAN OPERATED & OWNED

NTI WINDOWS & DOORS

PROUDLY CANADIAN OPERATED & OWNED

expert services

Old Windows Cost You Money Every Month

Drafts, condensation between panes, and difficulty opening or closing are signs your windows have failed. NTI clients report saving 20 to 40 percent on their utility bills after a full home installation.

  • New windows also reduce noise
  • increase your home's market value
  • eliminate mold risk from moisture buildup
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window types

Every Window Style. Custom Built to Your Specifications.

Casement Windows

Side-hinged windows that open outward with a crank handle. Excellent for ventilation and energy efficiency. Tight seal when closed.

Slider Windows

Horizontal-sliding windows ideal for wider openings. Easy to operate and maintain. Popular for kitchens and living rooms.

Hung Windows

Vertical-sliding windows available in single-hung and double-hung configurations. Classic look with modern energy performance.

Awning Windows

Hinged at the top and opening outward from the bottom. Perfect for ventilation during rain. Common in basements and bathrooms.

Bay & Bow Windows

Multi-panel windows that extend outward from the wall. Add space, natural light, and architectural character to any room.

Tilt & Turn Windows

European-style windows that tilt inward for ventilation or swing fully open for cleaning. Maximum flexibility in a single unit.

triple-pane windows

We Recommend Triple-Pane for Every home

Triple-pane windows have three layers of glass with insulating gas between each pane. The result: better energy retention in winter, cooler interiors in summer, and noticeably reduced outside noise. For Southern Ontario’s climate, triple-pane is not a luxury. It is the correct choice for long-term comfort and energy savings. All NTI windows are Energy Star certified and NAFS compliant.

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serving gta & beyond

Service Areas

Hamilton
Burlington
Toronto
Greater Toronto Area

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Expert Window & Door Solutions Built For You

Canadian-made, Energy Star certified windows and custom doors. Clear pricing. Realistic timelines. 5-star rated across 31 Google reviews.

Get a Free Window Estimate