KELLER mimimal windows®4 + are large, virtually frameless glazing and sliding windows. These sliding aluminum windows form large patio doors and sliding doors up to four and a half meters high on which the uprights are almost invisible. Winner in the Windows category, KELLER AG and its product KELLER minimal windows®4 + won over for their technical and aesthetic performance.
This system allows us to imagine modern living concepts and open with large windows. The very neat appearance, however, places high demands on all materials used. After years of development, the company Keller SA has managed to offer a high-end solution in the form of this new concept, elegant and almost invisible.