GlasFëns supplies high-performance fenestration for commercial construction: multi-family, prefab and modular, hospitality, and institutional buildings across the Americas.

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Based on proven European systems and fitted with German hardware, our fiberglass and thermally broken aluminum windows and doors deliver whole-window thermal performance approaching zero, up to a whole-window U-value of 0.045 (R-22). Our advanced vacuum-glass IGU comes standard, with conventional triple and double glazing available where a project calls for it. Every unit is engineered to order, with the full range of configurations, narrow-frame and concealed-hardware options, integrated blinds, acoustic packages, and Passivhaus-certified assemblies, all built around an industry-leading fail-resistant glass seal.

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The result is high-performance windows and doors that spec cleanly, install predictably, and meet the most demanding energy codes, at a price built for the realities of commercial budgets.