PVC Window A84 – Concealed Sash:   The window that turns every space into a comfort experience 

Some choices don’t just improve a home — they redefine how it feels to live in it. The A84 PVC window with concealed sash has been designed with exactly that purpose: to enhance everyday living through light, silence and energy efficiency, while delivering a clean, timeless architectural aesthetic.

Its minimalist design removes visual barriers to highlight what truly matters. Thanks to the concealed sash system, the frame disappears from sight, increasing the glass surface and allowing natural light to flood the interior. The result is immediate: brighter rooms, a greater sense of space and a constant feeling of comfort from the very first moment.

Beyond aesthetics, the A84 is engineered for high performance. With a profile depth of 84 mm and an advanced 6-chamber internal structure, it creates a stable and well-insulated indoor environment all year round. Heat is retained during winter, while indoor spaces remain pleasantly cool in summer — contributing to improved energy efficiency and lower energy demand.

Acoustic comfort is another defining feature. The A84 allows for high-performance glazing up to 46.5 mm, significantly reducing external noise and creating quieter, more peaceful interiors. This makes it an ideal solution for urban environments, coastal areas or homes where tranquillity is essential.

Designed to adapt to different architectural styles and lifestyles, the A84 offers multiple opening options, finishes and configurations. From contemporary residences to high-end architectural projects, it integrates seamlessly while adding long-term value through durability, performance and refined design.

At DISPER, we install the A84 PVC concealed sash window as what it truly is: a complete solution that combines advanced technology, architectural minimalism and lasting performance. More than just a window, it is an investment in comfort, efficiency and quality of life.