Keller minimal windows® has enjoyed a successful collaboration with BSV for many years, completing numerous projects across Germany, Switzerland, Austria, and Italy. BSV is a family-run company based in Schlanders, a predominantly German-speaking town in Northern Italy. Founded in 1978 by Simon Rechenmacher, the company is now led by his son, Stefan Rechenmacher.

From the very beginning, BSV has focused on high-quality, bespoke solutions in the window industry. Today, the company excels in delivering custom-made products in the areas of windows, doors, façades, and sun protection. Their extensive experience, technical precision, and commitment to craftsmanship make them a dependable partner for complex architectural projects. The collaboration between Keller minimal windows® and BSV is built on shared values of quality, design, and engineering excellence.