Canadian Craftsmanship, Lasting Quality
Introducing
PH 95 - Passive House Certified Fiberglass Window
Meet the new standard for the Canadian building envelope: The SILEX PH95 Series.
Engineered specifically to solve structural and thermal weak points in demanding climates, this inward-opening, operable (Tilt + Turn) window system has officially achieved Passive House Certification from the Passive House Institute (PHI) under the phB efficiency class.
Engineered for Energy Efficiency and Longevity
Fiberglass Windows & Doors Product Collection
Key Benefits & Performance
Our Pultrusion Process
The Pultrusion Process is a manufacturing technique used to produce fiberglass windows and other composite materials. It is widely used for Canadian-made fiberglass windows as it ensures durability and energy efficiency, ideal for extreme weather conditions.
Durability and
Low Maintenance
Our pultruded fiberglass is inherently stable, boasting a 50+ year lifespan with virtually no maintenance required. It’s the ultimate “high-performance, low-effort” solution for the modern building envelope.
The Sustainability of Fiberglass
Backed by a verified EPD (Environmental Product Declaration), our durable, resilient design promotes a circular economy while providing the transparent data needed for modern green building standards.
Superior Thermal Efficiency
We leverage the natural power of fiberglass to outperform the competition. By matching the expansion rate of glass, our products maintain a permanent airtight seal, reducing your energy costs and enhancing home comfort.
Fiberglass Windows Exterior Doors Sliding Doors Patio Doors Entrance Doors
SILEX is proudly Canadian-owned, specializing in innovative fiberglass windows and doors. From new homes and commercial projects to year-round renovations and replacements, we serve customers across Canada and the U.S., offering fiberglass windows, sliding doors, custom entry doors, and Curtain Wall System that set the standard in durability, energy efficiency, and modern design.
Collaborating with the Best In Class
Industry Partners
We pride ourselves on collaborating with the best-in-class partners in the industry to deliver unparalleled quality in fiberglass windows and doors.
We Build Inspired Space
Our Featured Projects
Our fiberglass solutions offer unparalleled performance, resisting warping, cracking, and weathering even in Canada’s toughest climates. Whether you’re looking to elevate the aesthetics of your home or enhance its energy efficiency, SILEX delivers the best products to suit your needs.
Latest Resources & Insights
- Blog, News
Fiberglass Window Wall in Canada
Featured in Award magazine, SILEX shares insights on the growing role of fiberglass window wall in Canada, from thermal performance and long-term durability to commercial and institutional applications.
- Blog
Window and Door Design Trends 2026
In 2026, window and door design is moving toward larger views, warmer finishes and better building performance.
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