Our experience guarantees construction work of the highest quality.

GWI 33- 4GWI 33- 4GWI 33- 4
GWI 16- 1GWI 16- 1GWI 16- 1


We specialize in adapting to the changing needs of the market. That is why we erect buildings as general contractors or shell contractors. We do structural alteration works and redevelopments. In all cases, we guarantee the highest quality of our work.



We approach each project with the same commitment. For a simple reason – it ensures ultimate success. Therefore, GWI Bauunternehmung GmbH has been shaping architecture in North Rhine-Westphalia for almost 30 years. Now, as part of MOD21 GmbH, we are transferring our approach to the whole of Germany.

Our employees are construction experts. Everyone brings their experience to the projects, from which our customers benefit greatly.

Philipp Schmuck
Technical Director

Build with us
Our construction solutions offer advantages that other companies cannot provide.

We keep our promises. Always.
We look for and implement the best solutions.
We take advantage of our 30 years of experience.
We carry out each task precisely and diligently.