© Stephan Offermann
KELLER AG from Luxembourg is the leading system manufacturer for design sliding systems. The frameless sliding windows and doors are installed in private and commercial buildings under the name minimal windows®. KELLER AG has gained international recognition as the manufacturer of the individually designed, exclusive ORANGERIE Elegance® and GLASSHOUSE® conservatories. KELLER AG manufactures with 120 employees on a production area of 8,400 square metres in Troisvierges, Luxembourg. Dreams made of aluminium, wood-aluminium and glass are presented on an exhibition area of more than 2,000 square metres.