What we do

Inline Fiberglass is a world leader in the development, design and application of fiberglass pultrusion technology. Inline’s leading product, thin walled fiberglass lineals are used in a myriad of applications. As a fully integrated manufacturing operation, Inline designs and pultrudes in-house standard and custom lineals.

With its headquarters and main production facilities located in Toronto, Canada, Inline profiles, windows, doors and production equipment are sold around the world. Energy StarInline Fiberglass conducts rigorous testing at its own state-of-the-art facility to ensure the highest quality, performance, energy efficiency and compliance to various standards and specifications.

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Our Commitment to Excellence

Inline Fiberglass is proud to partner with industry-leading organizations to promote energy efficiency and sustainable design.