The installation includes, among other things, an extendable and tilting assembly table suitable for the installation of sliding windows. Using the photos below, the assembly table can be seen in both vertical and horizontal positions. In horizontal position, the roller conveyor can be pneumatically folded away so that the element is easily accessible. During tilting into vertical position, the element is clamped on both sides to ensure safety. In vertical position, the sliding window can be fully tested and finished by a single operator. It can then be easily placed on a transport cart or window block.