About us

We want to satisfy the increasing demand for solutions which are not just optimised from an energy and economic point of view but also from an ecological point of view, by providing future-oriented services. As a consulting office we enjoy a good reputation throughout the whole of Switzerland as an innovative team for ecology in the construction industry, integral planning, energy concepts, as well as building operation and maintenance concepts based on sustainability.

Our strengths lie in construction technology which includes all aspects of planning of technical building systems.


Amstein + Walthert AG
Stammeraustrasse 8
8500 Frauenfeld 

Phone +41 52 723 22 55