Reynaers Aluminum is a Belgium-based company that manufactures residential aluminum windows, doors, and curtain walls. Designed to meet passive house requirements, these highly efficient systems and aluminum-framed products are available in minimal frame profiles that achieve a contemporary aesthetic without compromising performance or structural integrity.

Reynaers is designed to be custom. Their product line includes eight different window and door systems, including inward-outward opening windows, tilt + turn and lift + slide styles, and curtain walls. Manufactured with computer aided design (CAD/CAM), Reynaers windows are built to exacting tolerances specifically designed to maximize energy efficiency, ensuring an optimal living atmosphere no matter the climate.