This website uses cookies

This website uses cookies to ensure certain functions of the website. Furthermore, we use Google Analytics to gather information about user behavior on this website and to constantly make improvements to the website using this information as a basis. see Data protection


We would be pleased to advise

As a company that puts service front and centre, we love being there for you. We will answer your questions, support you while you place your order and give you our expert advice in all areas that have to do with windows, automation and window ventilation.

The service section of our website provides you with the latest information on our seminars and training classes.

Ordering tool


Tool for calculating the required material

Use the Excel tool for a quick and easy calculation of how much material you need - based on window size, material and type of opening mechanism.

The tool is designed for the following fitting systems:

  • HAUTAU Tornado

Available languages: D, EN, F, TR, NL, I, RU + PL

We will send you your download link for our calculation tool in an email. Please enter your email address in the field below.

Ordering tool

*Required fields

Customer service

Return service

As the world’s leading specialist for sliding and building automation systems used in windows, we manufacture products that live up to the highest standards. All products we ship are subjected to constant quality tests and inspections.

Even so, if you need to return an item to us, we ask that you fill in the send-back form for this purpose. Include the completed form and, if possible, a copy of your invoice / order confirmation with your return shipment.

We will process your return as quickly as possible.