North America’s leading high-performance, high energy efficient windows and doors for the residential and commercial markets.

Fibertec Fiberglass Windows and Doors Manufacturing is a recognized leader in the fiberglass windows and fiberglass doors industry. We provide one of the most comprehensive lines of high performance energy efficient fiberglass windows and doors in North America. Fibertec provides uncompromising quality fiberglass frames that offer energy efficiency and beauty combined, with a lifetime warranty to guarantee the quality of our fiberglass products. Fibertec’s fiberglass windows and doors provides durable, reliable, thermally efficient and cost-effective fiberglass windows and doors.

Fibertec's production headquarters for fiberglass window and door manufacturing is located in Concord (just outside of Toronto), Canada from which our fiberglass windows and doors are shipped internationally. To ensure that we manufacture only the highest performing windows and doors, our products are tested regularly to maintain the highest energy ratings that meet or exceed the standard requirements in the industry. Our in-house, IGMAC certified sealed unit glass manufacturing allows us to achieve top quality fiberglass windows that outperform all others.

With highly experienced technical support, Fibertec’s fiberglass windows and doors are recognized as the most energy efficient windows in the industry by meeting and exceeding Energy Star criteria and LEED requirements. Fibertec’s high performance fiberglass windows include the following styles: casement, awning, double hung tilt, bay and bow windows, single hung, picture(fixed) and custom windows. Fiberglass energy efficient doors include: fiberglass patio doors, fiberglass sliding doors and fiberglass entrance doors.

At Fibertec, we provide the most durable, reliable and thermal efficient fiberglass windows and doors in North America. The pultruded fiberglass framing systems at Fibertec, preserve the overall performance of windows and doors by providing superior insulation in extreme environments (heat, cold or highly corrosive), high condensation resistance, superior strength to weight ratios and high glass to frame ratios. Fibertec is the only company within the fiberglass industry to manufacturer a solid fiberglass entrance door frame & slab.

From fabrication, to finish, to shipping, we develop high glass-to-resin content to ensure our windows and doors preserve strength, durability and performance. Whatever the weather, whatever the pressure, Fibertec’s fiberglass windows and doors, offer a complete range of benefits that meet or exceed Energy Star and LEED criteria, and offer the strongest support and best insulation. Get the most energy efficient windows and doors in the industry with Fibertec.