One Call operates with the aim of sustainable development. We are building on the three pillars of sustainable development: economy, ecology and social responsibility. We create added value for our customers, employees, and suppliers. We conserve and protect natural resources – the basis of our economic activity. And we recognise our social responsibility for our area and towards our employees.

When designing and constructing a new building project, we think about sustainability. Project teams have a choice to build an innovative green building from the ground-up or maintain the status quo by creating a traditional structure that is much less energy efficient. LEED for Building Design and Construction provides a framework for building a green building. We want to deliver the highest quality project and maximize all benefits for our client and the environment.