"B2" - The abbreviation B2 stands for the two owners Bächler Patrick and Belk Martin, who founded the engineering office for heating, ventilation, air conditioning, cooling and sanitary systems on May 1, 2018.

Our team of project managers, clerks, draughtsmen and administrators currently consists of eleven qualified and experienced specialists.

For every project size.

Our range of services is very broad. We advise, plan and implement sustainable and energy-efficient projects, from small renovations to complex industrial plants.

For every project size.

Our range of services is very broad. We advise, plan and implement sustainable and energy-efficient projects, from small refurbishments to complex industrial plants.

Sustainable. Bilingual.

With our extensive experience and interdisciplinary thinking, we are your bilingual specialist for innovative and sustainable building technology systems.