A thermally insulated window and door system with a smooth and narrow profile. A specific profile shape that gives the structure an appearance similar to steel profiles and gives it a modern industrial look. Steel Look 1000 is a system that stands out on the market thanks to its unique design and thermal insulation (Uf) of 1.85 W/m²K. The system is available in a wide range of colours - RAL palette (Qualicoat 1518), textured colours, Aliplast Wood Colour Effect (wood-like colours), Aliplast Loft View - colours imitating stone surfaces (Qualideco PL-0001), anodised paint (Qualanod 1808) and two-tone finish.