Hellinger Horst - Windows, Doors & Sun Protection

We had our windows (Internorm) and roller shutters (Valetta) replaced in April 2026. The fact that the company offered both services was a major plus. In short: expert advice and very neat workmanship.

We had new windows and roller shutters installed by Hellinger and are completely satisfied. From the initial consultation to the final invoice, everything was handled with absolute professionalism and transparency. Communication was friendly, reliable, and clear – we always knew where we stood. Punctuality was exemplary; all agreed-upon deadlines were met. The installers worked very cleanly, conscientiously, and meticulously. It's particularly noteworthy that the work site was left tidy and clean after completion – something that's not always a given these days. We also received helpful tips on the proper use and maintenance of the windows and roller shutters. Highly recommended – many thanks to the entire team!

I had new windows installed in my apartment by Hellinger (Internorm triple-glazed units) and I'm really very satisfied. The sound insulation is a huge improvement, especially since I live on a main road – the difference is immediately noticeable. The insulation is also significantly better. The consultation, service, and installation were very professional, clean, and reliable. Highly recommended!

We recently had various window elements (balcony, basement, garage) installed by Hellinger. Even during the consultation and quote preparation, we got the impression that the team is committed to customer satisfaction and fair pricing. The installation was completed on schedule, and the installation team, led by Stefan, was truly the icing on the cake. This was because the installers—in addition to being friendly and helpful—worked with exceptional precision and care, resulting in minimal dirt or damage to the existing structure. In fact, they even went out of their way to repair or eliminate visual marks and defects that had existed years before their arrival. So, in our opinion and experience, anyone considering replacing their windows as part of a renovation project should be in the best hands with Horst Hellinger and his team. In conclusion: definitely a recommendation and at least 5 stars.

A reliable, customer-oriented, and highly skilled company. All appointments were kept as agreed. The installation of the front door was carried out very professionally. Friendly staff both in sales and during installation. A highly recommended family business. They proactively pointed out the discount that had been inadvertently omitted and promptly refunded the discount amount. Many thanks for the excellent service.