
Across seven sites in Germany and two in the Czech Republic, we now employ more than 500 staff. We have since become the market and quality leader in Europe and are a major employer in the region.


As stone innovators, we stand for expertise, passion and innovation. Concrete blocks are a building material that is far more intelligent, versatile and sensuous than one might initially assume. This is particularly true when it is not just any old block – but one that has been invented for a specific purpose. Depending on requirements, we manufacture our products in series or in our concrete workshop, always using raw materials sourced from the region.
What we do is not limited to developing exceptional paving systems. In our in-house stone laboratory, we work on new ideas, experiment with new raw materials and devise new formulations. We continue until we have created a stone of the very highest quality, one that delights with its aesthetic design and feels so pleasant that you want to touch it again and again. We will not settle for anything less.



At our headquarters in Fensterbach, spread over 30 ha, we use five paving block machines and two slab presses to manufacture high-quality concrete block products every day, which can then be further processed on our finishing line. Countless bespoke items are handcrafted in our workshop every day.
The large storage areas offer capacity for over 3,500 items. This makes the Fensterbach site the largest production site for concrete blocks in Europe. With our own fleet of trucks powered by bio-LNG, we can guarantee fast delivery.

For us, sustainability is a philosophy we put into practice – for over two generations and beyond. We have been manufacturing with carbon-neutral production (emissions 1 and 2 accounted for and offset) since 2015. Our products have been awarded Cradle to CradleCertified® Silver. This internationally recognised certification confirms the environmental compatibility and recyclability of our products.



In our stone laboratory, we research proactive surface systems and their effects. Since the late 1980s, we have been working on the de-sealing of surfaces and the maintenance of the natural water cycle in urban environments.
Our sustainability report details all the milestones we have achieved in this area to date and the targets we have set ourselves for the future.