Grown from decades of experience

trenovo Treppensysteme e.K. is based on more than 50 years of company history of BHK Holz- und Kunststoff KG in Büren. At the beginning of 2000, BHK fi rst developed a stair profi le based on laminate fl ooring for large-scale marketing. In 2011, the wrapped stair tread was developed as a trenovo stair renovation
system for professional installers and then expanded to a complete system for renovation and new construction over the following decade. Our products are industrially produced at our sites in Büren (NRW) and Saalburg-Ebersdorf (Thuringia). Due to the international orientation, the staircase systems will be marketed under the brand k-stairs from 2025.

The complete solution for new buildings and renovations offers professionalism right to the last detail, whether in terms of materials, workmanship or appearance. Our company offers you as a customer the highest quality assurance, fl exible response times, short communication channels and sophisticated logistics thanks to our sister company Heinrich Kottmann Spedition GmbH & Co. KG, which delivers to the construction site throughout Germany with 40 trucks and connected general cargo networks.

At k-stairs, we feel committed as people and as a company to doing everything we can to conserve our resources and protect our environment. The k-stairs staircase system is therefore produced with the utmost care and responsibility for nature. When selecting the materials, we make sure that they are high quality, durable, natural and environmentally friendly.

We use wood-based materials and woods that come from sustainable forestry. On request, you can obtain all k-stairs materials also PEFC certified. Our core values have a system. That is why we regularly have compliance with environmental protection guidelines, product quality and occupational safety in our factories. We recover wood residues in our own modern wood-fired heating plant to supply heat and the new PV system provides us with sufficient solar power.