By order of the mining company, we adjust the laser of the tunnel boring machine and control the heading. Convergences in tunnels are measured using the Distometer or with automatic total stations. Our specialists are flexible and on stand by 24 hours.

We control and construct for the building owner, the construction company or for the municipality axis, batter boards, spot heights and profiles.

We are a competent partner starting from the profile acquisition until the definition of the axis and position of the masts. We compile the fundamentals and visualize the project.