Sustainability starts with in-house value creation.

Our own gravel pit, our own recycling facility, our own fleet of machinery – each of these building blocks shortens transport routes, closes material cycles and reduces the resources required per project. This is a way of working that has grown over time on the Upper Rhine – long before sustainability became a reporting obligation.

Our Vision.

Our aim is to bring together construction practice and responsibility – creating solutions that last beyond the moment. For us, sustainability means thinking impact through to the end – in planning, in execution and in what a project leaves behind over time.

Our Mission.

Our mission is to embed sustainability consistently into our planning, our execution and our decisions. Everything we do is guided by durability, resource efficiency and solutions built to last.

Recycling-Symbol mit drei sich drehenden Pfeilen symbolisiert Kreislaufwirtschaft und Nachhaltigkeit.
CIRCULATING RESOURCES
Icon eines Lastwagens mit Wassertropfen und Blättern symbolisiert nachhaltige Logistik
sustainable procurement
Icon einer Pflanze wächst aus Ziegelmauer symbolisiert nachhaltiges Wachstum auf stabilem Fundament
BASICS FOR TOMORROW
Luftaufnahme eines Rohstoffabbaus der Klefenz GmbH mit Baggern und Fördertechnik.
Drohnenaufnahme Recyclinghof Ettikon
SUSTAINABILITY IN PRACTICE

Responsibility we put into action every day.

or us, sustainability means thinking about responsibility as a whole. With our own recycling facility and our own gravel pit, we create the foundation for short distances, efficient processes and a mindful use of resources. Materials are reused, material cycles are closed and workflows are designed to stand the test of time.

This is how we combine environmental responsibility, technical precision and economic efficiency.

Marvin Klefenz
Managing Director

Zitat Icon rot

Sustainability is not a trend, it is a responsibility. With our own gravel pit, recycling facility and ongoing investments in modern technology, we build infrastructure that keeps working for the long term.

Team der Klefenz GmbH auf einer Baustelle mit Arbeitskleidung und Kabeltrommel im Hintergrund.
More About Us
A family-run business since 1961, grown on the Upper Rhine – who stands behind the certifications and how we work.
Bauarbeiter in Warnweste auf Baustelle von hinten fotografiert
References
From sleeper replacement during live operations to Digital Rail – selected projects from our portfolio.
Mitarbeiter der Klefenz GmbH vor einer Baumaschine auf dem Betriebsgelände.
Our Services
Eleven trades under one roof – from track construction to civil engineering, cable installation and fibre-optic network expansion.