Continuous ventilation.
Our continuous ventilation systems vouch for a comfortable indoor environment by means of constant airing with the windows closed. This keeps mould firmly at bay – with hardly any heat loss.

“Please do not specify windows for your home as a whole, but design them for each individual space.”

Finstral’s patterned glass and Venetian blinds create an outstanding visual screen with minimum loss of light.




Full daylighting and unobstructed views: a temporary visual barrier can be provided by curtains, hinged shutters or roller shutters. Yet, a low-maintenance, easy-care Venetian blind located in the gap between the panes offers even greater convenience.
The robustness of uPVC makes it the ideal material for window frames. Alternatively, with our Cristal model, you can have the frame fully hidden behind glass. This offers fewer surfaces for dust and dirt to accumulate, making the window easier to clean.
A properly thought-out ventilation concept is key to ensuring the prompt extraction of moisture and the prevention of mould formation in bathrooms. Alongside the tilt-and-turn sash, Finstral offers a series of intelligent options, ranging from continuous ventilation to two-step tilt opening and sash limiters.
Do you just want to inspect, touch and try out our products? At the Finstral Studio, you will find a wide range of windows and doors. Along with expert answers to your questions.
Windows are investments for decades. Which makes intelligent design all the more important. The diversity of design and functional options is far greater than you can imagine.

At a glance.
In the bathroom, you need ample daylight and absolute privacy together with provision for the prompt extraction of post-shower humidity. To meet these demands, Finstral offers intelligent custom-designed windows: our water-resistant uPVC core offers guaranteed, mould-free durability. The Twin coupled window with interstitial Venetian blind offers subtle visual privacy without darkening the space. While integral ventilation systems guard against mould growth.
Cold glass, warm air: the outer pane remains very cold in winter. When, in the morning, warmer, humid indoor air hits this cold surface, condensation will form on the outside.
Ideally, by opening the windows wide for five to ten minutes of shock or cross ventilation. For further details, please visit: Ventilation - Finstral Planner.
Films are better suited as a temporary solution. The constant alternation between hot steam and cold temperatures may soon cause them to peel away at the edges or form unsightly blisters. A Finstral window with genuine textured or patterned glass is durable and easy to maintain while offering a far more elegant look. For further details, please visit: Patterned glass - Finstral Planner.