astrain.ch ag

astrain AG was founded in October 2023 by Bruno Hehli and Edmund Inauen. In January 2024, we acquired the renowned timber construction company Ulmann Holzbau AG, where we had previously gained extensive experience. Thanks to our extensive knowledge of operational processes and modern infrastructure, we are able to implement projects efficiently and to the highest quality standards. Our customers also benefit from a well-coordinated team with many years of expertise in timber construction.

Timber construction:
Wood not only connects as a structural element, but also connects our team. From the very beginning, the history of astrain has been closely linked to the sustainable raw material wood.

We are proud of our work with wood and understand our craft – always striving to achieve the highest precision, diversity, and creativity.

Interior design:
In the field of timber construction, interior design is also one of our core competencies. We enjoy the versatility of wood as a material and use it to design staircase constructions, among other things, which not only connect floors but also perfectly combine function and aesthetics.

Services we offer from a single source:

• New construction

• Wood construction

• Element construction

• Stair construction

• Balconies

• Terraces

• Conversions

• Staircase construction