About Silex
Silex is the Latin word for Silica. This is the chemical compound foundation from which our window frames and glass are made from. Silica is most commonly found in nature as quartz. Silica is one of the most complex and most abundant families of materials, existing both as several minerals and being produced synthetically.
Silex Fiberglass Window and Door - Manufacturer
Silex Fiberglass Windows and Doors is a privately owned firm based in Winnipeg with office, showroom and fabrication facility at 1450 Wall Street, and specializes in pultruded fiberglass windows and doors.

Silex Fiberglass Windows & Doors has a full line of fiberglass windows and door systems that are the best choice for extreme hot and cold temperatures.
Environmentally Friendly
Fiberglass Strings are made mostly from silica sand (sustainable natural resource), the lineal manufacture process consume the least embodied energy when compared to other common window frame materials such as Aluminum and PVC.
Low Maintenance
Fiberglass is the most stable material in virtually unlimited colors and an interior wood veneers. The maintenance-free frames stay true to form due to strength of materials. No need for sanding, painting, or staining.
Low Thermal Conductivity / Energy Efficient
Pultruded Fiberglass profile insulates better than any of the traditional window and door materials. The thermal conductibility ratio is 500x less than aluminum. Insulating the frame and sash components reduces the conductivity even further, allowing for the creation of some of the most energy efficient window and door systems.