SILEX 2100 Series

The 2100 Series stays structurally stable from the hottest summers to bone-chilling -40°C winters, ensuring your home remains draft-free year-round

Schedule a Consultation

What SILEX Offers

SILEX provides Canadian-made fiberglass windows and doors engineered for durability, thermal stability and energy efficiency. Its customizable window systems deliver year-round comfort, low maintenance and reliable performance for Ontario homes.

Why Fiberglass?

Fiberglass windows deliver exceptional durability, thermal stability and energy efficiency in Ontario’s changing climate. They resist warping, expanding and contracting while providing year-round comfort, reliable performance and minimal maintenance.

Casement & Awning

Crank-operated for tight seals and effortless ventilation. Multi-point locking standard.

Slim 3-1/4″ frame

Up to triple-pane

Concealed hinges

Casement & Awning

Crank-operated for tight seals and effortless ventilation. Multi-point locking standard.

Slim 3-1/4″ frame

Up to triple-pane

Concealed hinges

Casement & Awning

Crank-operated for tight seals and effortless ventilation. Multi-point locking standard.

Fixed & Picture

Maximize the view with frameless-style sightlines and oversized panels for modern architecture.

Up to 8ft tall

Slim sightlines

Direct-set glazing

View More →

Fixed & Picture

Maximize the view with frameless-style sightlines and oversized panels for modern architecture.

Up to 8ft tall

Slim sightlines

Direct-set glazing

Fixed & Picture

Maximize the view with frameless-style sightlines and oversized panels for modern architecture.

View More →

Hung & Slider

Traditional operation in a modern fiberglass platform. Tilt-in sashes for effortless cleaning.

Tilt-in sashes

Smooth tracks

Custom mulled units

Hung & Slider

Traditional operation in a modern fiberglass platform. Tilt-in sashes for effortless cleaning.

Tilt-in sashes

Smooth tracks

Custom mulled units

Hung & Slider

Traditional operation in a modern fiberglass platform. Tilt-in sashes for effortless cleaning.

Our process →

Fiberglass is the most stable material which in virtually unlimited colors and an interior wood veneers. With minimal maintenance, fiberglass windows and doors retain their appearance for decades, saving you time and money on replacements.

Built sustainably

Fiberglass is made from glass fibers and resin — recyclable, low embodied carbon, and a lifespan measured in generations.

Built sustainably

Fiberglass is made from glass fibers and resin — recyclable, low embodied carbon, and a lifespan measured in generations.

Built sustainably

Fiberglass is made from glass fibers and resin — recyclable, low embodied carbon, and a lifespan measured in generations.

About SILEX

Fiberglass Windows Made for Canadian Conditions

SILEX manufactures every window and door using high-grade pultruded fibreglass, delivering exceptional strength, energy efficiency, and long-term climate performance. Designed specifically for Canadian conditions, our products resist warping, expansion, and performance loss over time.

High Dimensional Stability

High Energy Efficiency

Environmentally Friendly with EPD Certification

Minimalist Appeal

About SILEX 2100 Series

SILEX Fiberglass Windows

The Ultimate in Performance & Permanence

Engineering the Invisible: Windows Built for the Canadian Climate

Thermal Expansion

Co-efficient of expansion identical to glass, preventing seal failure.

Strength-to-Weight

3x stronger than aluminum; allows for massive, oversized glass spans.

Durability

Non-corrosive and impervious to UV degradation and rot.

Energy Rating

Significant savings on heating and cooling bills in Ontario winters.

Hardware

Heavy-duty, stainless steel multi-point locking systems for ultimate security and ease of operation.

Finishes

A wide array of baked-on powder coat finishes that are scratch-resistant and will not fade under intense UV exposure.

Window installation and replacement services featuring premium fiberglass, wood-clad, and vinyl windows. Professional installation for homes and commercial projects.

Window & Door Installation Across the GTA

The GTA & City of Toronto

Window and door solutions for custom homes, renovations, and architect-designed residences.

Inquire Now →

Mississauga

Energy-efficient replacements for Mississauga's mix of suburban estates, lakefront properties, and new builds.

Inquire Now →

Oakville

We select and install window and door systems that feel right at home while delivering lasting performance.

Inquire Now →

Vaughan

Window and door solutions for Vaughan homes, renovations, and new builds.

Explore Vaughan

Muskoka

Window and door solutions designed for Muskoka cottages, retreats, and year-round homes.

Explore Muskoka

Scroll horizontally to explore

Don't see your city? We bring high-performance window and door solutions directly to premium custom homes across the GTA, including King City, Stouffville, Thornhill, Pickering, Ajax, Whitby, and Milton. Contact us to discuss your project's location.

Request a Free Quote

Window & Door Installation Across the GTA

The GTA & City of Toronto

Window and door solutions for custom homes, renovations, and architect-designed residences.

Inquire Now →

Mississauga

Energy-efficient replacements for Mississauga's mix of suburban estates, lakefront properties, and new builds.

Inquire Now →

Oakville

We select and install window and door systems that feel right at home while delivering lasting performance.

Inquire Now →

Vaughan

Window and door solutions for Vaughan homes, renovations, and new builds.

Explore Vaughan

Muskoka

Window and door solutions designed for Muskoka cottages, retreats, and year-round homes.

Explore Muskoka

Scroll to explore all 5 locations

Request a Free Quote

Window & Door Installation Across the GTA

The GTA & City of Toronto

Window and door solutions for custom homes, renovations, and architect-designed residences.

Inquire Now →

Mississauga

Energy-efficient replacements for Mississauga's mix of suburban estates, lakefront properties, and new builds.

Inquire Now →

Oakville

We select and install window and door systems that feel right at home while delivering lasting performance.

Inquire Now →

Vaughan

Window and door solutions for Vaughan homes, renovations, and new builds.

Explore Vaughan

Muskoka

Window and door solutions designed for Muskoka cottages, retreats, and year-round homes.

Explore Muskoka

Scroll horizontally to explore

Request a Free Quote

Help and Support

Clear explanations to help you understand how we work and what to expect.

Schedule a Consulation

Are fiberglass windows better for the Canadian climate than vinyl?

Yes. Unlike vinyl, which expands and contracts significantly during Ontario's extreme temperature swings, fiberglass is made of glass fibers and resin. This means it has a thermal expansion rate nearly identical to the glass it holds.

Are fiberglass windows better for the Canadian climate than vinyl?

How do fiberglass windows perform in coastal areas like New Brunswick and Nova Scotia?

Do fiberglass windows qualify for the 2026 Ontario Home Renovation Savings program?

Can I get fiberglass windows in dark colors like Black or Iron Ore?

Who supplies and installs SILEX products in Southern Ontario?