Dr. Guido Roelfstra, qualified as an expert by the SIA, created the DRGR engineers Sàrl advice office in late 2014 after 20 years in business primarily in Western Switzerland in all areas of civil engineering. He also worked in France and several other countries for terms and expert missions as part of major projects (references).

with 100% satisfied customers and partners of its services.

As a specialist structural design and civil works, Dr. G. Roelfstra participated in many large building projects and infrastructure. He has always been involved in the search for practical solutions that balance economic, structural and technical requirements to bring out the architectural expression. Often called as expert to solve complex problems and coordination in projects of all sizes and of all kinds.

The DRGR office offers customers together to define needs, optimize projects and studies by quickly providing the necessary structure to meet your expectations and requirements.

Looking for COMPETENCE, DYNAMISM AND EFFICIENCY?

You want to have a direct contact with an experienced engineer who responds simply to your questions?

One solution -> contact us