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Gerdes windows and doors

We create perspectives

Rely on quality: We are your partner for custom-made windows, entrance doors, sliding doors, façades and fire protection doors. With four locations, 47 years of experience, 130+ employees and over 55,000 manufactured products per year, we ensure the best perspectives for your building and renovation projects. Founded in 1949, we are now one of the leading fabricators of Schüco products in Germany and the Netherlands. Our team of German-Dutch specialists makes us a reliable partner for property developers, dealers, fabricators, architects and homeowners.

47 years of experience in window production

130+ employees and four locations

55,000 windows & doors per year

5,200 m² production area in Germany

Longtime Schüco Premium Partner

Custom-made Schüco windows, doors, sliding doors and façades

We manufacture individual Schüco windows, front doors and sliding doors from aluminum or PVC-U. Choose from a wide range of colours, surfaces, handles and accessories - always with the security: windows and doors from Gerdes meet the highest standards in terms of quality, comfort, design, security, sustainability and energy efficiency. You can also trust in our expertise in the area of ​​facades and fire protection doors made of aluminium. As a 100% recyclable material, our aluminium products meet the highest requirements of the circular value chain and the international Cradle-to-Cradle standards.


High-quality Schüco windows made of PVC-U and aluminum for new buildings, renovations or refurbishments. Numerous design options, a high level of stability and durability and minimal maintenance. 

Entrance doors

Schüco front doors made of PVC-U and aluminum for residential, industrial, commercial and public buildings. Custom-made and with a comprehensive range of door infills and colour design options.

Sliding doors

Schüco lift-and-slide doors for a perfect connection between indoors and outdoors. With maximum comfort and convenience and a wide range of handles, colours and profiles. Made of PVC-U and aluminium.

Bi-fold doors

Schüco bi-fold doors made of aluminium for maximum opening widths. Flexible and space-saving for unrestricted views to the outside. Offers exceptional versatility, while outstanding insulation and custom-made.


High-performance Schüco mullion/transom façades. Offers a wide range of options for the implementation of vertical façades and skylight constructions. With attractive design options.

Fire resistant door

Multifunctional aluminum fire resistant doors for fire and smoke-protection. For individual areas of application and fire protection requirements and with numerous design options.

We are Schüco Premium Partner

We are one of the longest-standing German Schüco processors, a leading supplier in the Netherlands and a Schüco Premium Partner. Our certification as a Schüco Premium Partner gives you the security that we meet the highest quality and service standards when planning and manufacturing PVC and aluminum building elements. Our long-standing and intensive partnership also enables us to develop innovative solutions together. In cooperation with the Bielefeld company, we have developed special Schüco thresholds for the Dutch market, for example, which do justice to the specific installation situation in the Netherlands.

Management board

Thomas Gerdes

Managing Director

"For us, growth, innovation and tradition go hand in hand and guarantee our customers that we are a stable and reliable partner at their side today and in the future."

Peter Simon-Höke

General manager

“Reliability must remain in all innovative strength. This is our strength: Our consistency lies in service. This is how we create perspective!”

Working at Gerdes

Do you wish for a future with perspective? Then join our team! Over 130 employees in Germany and the Netherlands look forward to welcoming you to our Gerdes team.

Partnerships and certificates

Gerdes GmbH · Tannenkämpe 28
49838 Lengerich · Germany
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