The development of the HW system is characterized by a pioneering spirit, technical expertise and a consistent patent strategy. Equipment, materials and processes have been continuously developed over five decades - with a clear claim: maximum tightness, maximum service life and absolute freedom from maintenance. The result is more than 40,000 successfully renovated construction sites and a strong network of around 30 partner companies throughout Europe.
On our 50th anniversary, we can look back not only on an impressive company history, but also on many personal encounters, technical milestones and the cross-generational cohesion of a family business.
You can open and read the complete commemorative publication with the detailed history, technical background and numerous project images as a PDF here.