G.D.B. Fenêtres-Concept and Finstral together offer the most complete range of windows in Europe.
You don’t buy windows off the shelf – windows are planned individually. The frame form, the colour, material and functions should all aim to match the architecture and furnishing style of the house. As a manufacturer, Finstral offers the greatest variety and freedom of design in Europe: practically every item in its range can be combined with everything else.