Save up to 20 % on energy with new windows.

Warm in winter. Pleasantly cool in summer.

Put an end to high energy bills: Finstral windows will help to reduce energy consumption by up to 20 % and create a pleasant indoor environment all year round. This energy efficiency comes complete with supreme quality and elegant aesthetics.

The Finstral pledge.

Always from a single source. For uncompromising quality.

What makes Finstral windows so special? The fact that we model them as an integral system. The result is a perfectly coordinated window concept uniting aesthetic appeal, energy efficiency and durability.

Smart window replacement.

Finstral has innovated the minimally invasive slide-on and slide-in installation methods. The outcome? Window replacement in a maximum of two hours per window. Without noise, dirt or any need for tenants to vacate the building.

Multiple certifications.

Quality is something we can demonstrate, not just promise. Our products, installation methods and procedures are regularly inspected, making us one of Europe’s most certified window manufacturers.

Always nearby.

With 14 plants, 27 company-owned Studios and some 800 partners across 14 countries, we combine pan-European experience with face-to-face, on-the-spot counselling. We can thus provide you with reliable, end-to-end support, from design through to installation.

Person öffnet ein großflächiges Fenster mit hellem Rahmen.

Energy efficiency. In evidence every day.

Windows have a bigger impact on a building’s energy use than many people realise. They help to retain warmth in your home in winter and prevent interiors from overheating in summer. This delivers more pleasant indoor temperatures, cuts energy consumption and enhances living comfort throughout the year.

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Find out how efficient your windows are.

The free Window-Check kit comes with simple instructions on how to perform a step-by-step check on the condition of your windows.

Order Window-Check kit

Raum mit Tisch und Stühlen und einer großen Fensterfront.

Perfectly insulated. Custom-designed.

All Finstral windows combine a highly insulating uPVC core with premium-grade materials and a stylish design. Which means that every replaced window brings a twofold benefit – for both your energy profile and your home.

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Replace windows. Save on heating costs.

Discover our energy-saving solutions in person and get personalised advice at your local Finstral Studio.

Arrange a consultation appointment

Always there for you.

Request advice

Windows, front door or glass walls are investments for decades. We will be happy to advise you personally.

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On-site appointment
Individual expert advice at your location by Finstral experts
Showroom appointment
Individual expert advice in our showroom from Finstral experts
Information material
Information about windows and replacement

Would you like to request additional materials?

Fenster-Check-Kit
Check the condition of your windows with four simple tests.
Glass Walls Catalog
The entire glass wall range is detailed on 300 pages.

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Energy efficiency is only the start.

Not only are modern windows veritable energy savers. They are also easy to install while at the same time enhancing living comfort, security and aesthetic appeal.

One new window. Multiple benefits.

A window is many things at the same time: insulation, soundproofing, burglary protection, light source and design feature. With a simple replacement, you can improve everything at once. New Finstral windows keep the warmth inside, the noise outside, enhance security and admit more daylight into the interior. While upgrading the entire building.

Discover the benefits of modern windows

Window replacement without dirt or noise.

Refurbishments usually spell building mess. Not with Finstral: our intelligent, minimally invasive installation methods generally allow us to replace your old windows in under two hours. With neither masonry works nor any elaborate preparations. Your furniture stays where it is and you carry on with your daily routine. Come evening, you will be back in your lounge – only with a nicer view. Thanks to your new windows.