TWINDOW®

Windows reimagined!

TWINDOW®

TWINDOW® – truly two windows in one unit!
The inner core window and the outer cover shells, which can be removed at any time.

TWINDOW no longer has much in common with a conventional window, either technically nor visually.

Finally, there are window systems whose service life is no longer shortened by the durability of the exterior.

The unique TWINDOW design separates the weathered outer window from the cozy inner window for the first time:

WITH STANDARD WINDOW SYSTEMS:
The frame and sash form an inseparable unit. If the exterior has weathered after decades of exposure to sun, rain and snow, the ENTIRE WINDOW usually has to be replaced.


ONLY WITH TWINDOW:

The TWINDOW exterior can be maintained at any time – even when installed in place.
The perfect protection a18> all weather conditions protected inner core window can technically actually unlimited long in the facade remain. The window lasts just as long as your house!

Twindow

TWINDOW® makes it possible.

The unique design separates the weathered outer window and the cozy inner window for the first time:

  • Two separate assemblies
  • Outer shell can be easily removed at any time – on the leave and frame
  • Outer shell made of wood or aluminium

Technically perfect.
Incredibly durable.
And visually extremely versatile.

Advantages at a glance

WORLD FIRST

TWO in ONE !

UNIQUE

MAINTAINABLE

LIFESPAN

EXTENDED BY DECADES EXTENDED

{ "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Was sind die Vorteile von PVC-Kunststofffenstern?", "acceptedAnswer": { "@type": "Answer", "text": "PVC-Fenster sind preiswert, pflegeleicht, witterungsbeständig und bieten sehr gute Wärmedämmung. Sie sind langlebig, recycelbar und benötigen kaum Wartung." } }, { "@type": "Question", "name": "Wie lange halten PVC-Fenster?", "acceptedAnswer": { "@type": "Answer", "text": "Die Lebensdauer von PVC-Fenstern beträgt meist 30 bis 40 Jahre – abhängig von Pflege, Qualität und Umwelteinflüssen." } }, { "@type": "Question", "name": "Wie energieeffizient sind PVC-Fenster?", "acceptedAnswer": { "@type": "Answer", "text": "Moderne PVC-Fenster erreichen dank Mehrfachverglasung und Dichtungen U-Werte unter 0,75 W/m²K und senken damit Heizkosten deutlich." } }, { "@type": "Question", "name": "Was kosten PVC-Fenster im Durchschnitt?", "acceptedAnswer": { "@type": "Answer", "text": "Die Preise variieren je nach Größe, Verglasung und Ausstattung. PVC-Fenster gelten jedoch als besonders preisgünstige Lösung." } }, { "@type": "Question", "name": "Wie reinigt und pflegt man PVC-Fenster richtig?", "acceptedAnswer": { "@type": "Answer", "text": "Zur Reinigung genügt lauwarmes Wasser mit mildem Reinigungsmittel. Die Dichtungen sollten regelmäßig mit Silikonspray gepflegt werden." } } ] }

We transform your ideas into works of art

Discover our spacious 1,000 m² showroom in the north of Luxembourg!
Experience a diverse selection of high-quality windows and doors – and that’s not all: we also present exclusive special products and our complete range of modern sun protection solutions.

Discover more Brever products you might like

Pergola

Turn your patio into your favourite place – with a stylish pergola that provides shade and gives you that holiday feeling in your own garden.

Aluminium window

Robust aluminium windows meet your design requirements!

Front doors

Special designs, high-quality materials – front doors that impress with elegance and smart refinement

Contact us and let your visions come true

Or book your showroom appointment