SILEX 2100 Series
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
The 2100 Series stays structurally stable from the hottest summers to bone-chilling -40°C winters, ensuring your home remains draft-free year-round
What SILEX Offers
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.
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
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.
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 Dimensional Stability
High Energy Efficiency
High Energy Efficiency
Environmentally Friendly with EPD Certification
Environmentally Friendly with EPD Certification
Minimalist Appeal
Minimalist Appeal
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
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.
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.
SILEX Fiberglass Windows
Canadian-Made Windows. Tested for High Performance.
Canadian-Made Windows. Tested for High Performance.
Canadian-Made Windows. Tested for High Performance.
SILEX fiberglass windows combine Canadian manufacturing with tested performance to meet the demands of modern buildings. Designed with energy efficiency, lasting durability, and everyday comfort in mind, they bring together refined architectural details and practical performance for residential and commercial projects.
SILEX fiberglass windows combine Canadian manufacturing with tested performance to meet the demands of modern buildings. Designed with energy efficiency, lasting durability, and everyday comfort in mind, they bring together refined architectural details and practical performance for residential and commercial projects.
Clean lines. Refined detail.
Clean lines and refined frame details for contemporary spaces.
Clean lines. Refined detail.
Clean lines and refined frame details for contemporary spaces.
SILEX Fiberglass Windows
The Ultimate in Performance & Permanence
The Ultimate in Performance & Permanence
The Ultimate in Performance & Permanence
Engineering the Invisible: Windows Built for the Canadian Climate
Engineering the Invisible: Windows Built for the Canadian Climate
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 & Door Installation Across the GTA
The GTA & City of Toronto
Window and door solutions for custom homes, renovations, and architect-designed residences.
Mississauga
Energy-efficient replacements for Mississauga's mix of suburban estates, lakefront properties, and new builds.
Oakville
We select and install window and door systems that feel right at home while delivering lasting performance.
Muskoka
Window and door solutions designed for Muskoka cottages, retreats, and year-round homes.
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.
Window & Door Installation Across the GTA
The GTA & City of Toronto
Window and door solutions for custom homes, renovations, and architect-designed residences.
Mississauga
Energy-efficient replacements for Mississauga's mix of suburban estates, lakefront properties, and new builds.
Oakville
We select and install window and door systems that feel right at home while delivering lasting performance.
Muskoka
Window and door solutions designed for Muskoka cottages, retreats, and year-round homes.
Scroll to explore all 5 locations
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.
Window & Door Installation Across the GTA
The GTA & City of Toronto
Window and door solutions for custom homes, renovations, and architect-designed residences.
Mississauga
Energy-efficient replacements for Mississauga's mix of suburban estates, lakefront properties, and new builds.
Oakville
We select and install window and door systems that feel right at home while delivering lasting performance.
Muskoka
Window and door solutions designed for Muskoka cottages, retreats, and year-round homes.
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.
Help and Support
Help and Support
Help and Support
Clear explanations to help you understand how we work and what to expect.
Clear explanations to help you understand how we work and what to expect.
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?
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?
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.
How do fiberglass windows perform in coastal areas like New Brunswick and Nova Scotia?
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?
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?
Can I get fiberglass windows in dark colors like Black or Iron Ore?
Who supplies and installs SILEX products in Southern Ontario?
Who supplies and installs SILEX products in Southern Ontario?