The unique engineering preparation and trade of the Janisol Arte steel window system by Jansen AG, founded in 1923, began with the needs arising in residential buildings, and later expanded into the communal sector. As the trend of minimal construction culture became fashionable, it became evident that the renovation market (e.g., loft buildings) also welcomes modernization by replacing outdated windows and doors. Jansen’s Swiss-manufactured and developed product range, with its decades-long history, has risen to the forefront worldwide. As strategic partners with Schüco, they collaborate in many product ranges and buildings. Jansen offers a complete range of facade steel window products.