The 76 mm double-seal and central seal systems are ideal for renovations and new buildings. The shallow construction depth and thin profile lines offer the best advantages for renovations.
This system sets an example from an ecological point of view – the Trocal brand is the first major manufacturer in the world to produce profiles not only with recycled material in unused PVC-U for windows, but also exclusively with lead-free PVC with “green” stabilizers based on calcium and zinc.
This guarantees that those who use Trocal products are also working to protect the environment.





The corners of the frame are reinforced with welded angle connectors that form a non-positive connection with the steel reinforcement. These absorb bending and torsional forces, e.g. from lever opening efforts, and distribute them throughout the entire surrounding steel frame. Special fittings increase safety to an even higher level.
Residential doors can be made with single or multiple frames that open inwards, with windows at the top or with side frames. Thanks to its thermoplastic formability, this residential door can also have customizable arches, a spectacular calling card for your home. Residential doors can be optionally equipped with Georgian glass bars, conventional functional or decorative glass, or prefabricated panels.
We create inspiring spaces that combine modern design with sustainable functionality, turning your vision into reality.