The Trocal 88 MD central sealing system has been specially developed for new buildings. This complete system for residential windows and doors is the perfect solution for all thermal insulation requirements, including the passive house standard.
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.



This is the premium window for a new era: Trocal 88. Representative of the thermal insulation of the future, trendsetter of design, pioneer of quality and reliability. And an opening space for individuality thanks to its modularity and innovative improvement technologies.
Trocal 88 is a 7-chamber system with central sealing and high insulation, with a modern construction depth of 88 mm. The standard version of the system achieves an outstanding Uf value of 0.95 W/(m²K) and thus meets the high energy saving requirements for passive houses. Special feature: Unlike similar solutions, this value is achieved with steel reinforcement for maximum element sizes and also in colored profiles.
We create inspiring spaces that combine modern design with sustainable functionality, turning your vision into reality.