BWT Bau AG - We are active in the following areas: reconstruction, renovation, customer work, timber construction, wood eleme ... nt construction, asbestos removal, concrete renovation, concrete drilling and milling. With around 300 employees, BWT Bau AG is one of the largest construction companies in the canton of Zurich. Thanks to our three locations, we are always close to our customers. The construction company has years of experience in all areas of construction. We can look back on a long company history with family tradition. Our company was founded in 1840. BWT Bau AG would not be in its sixth generation without the countless, fantastic young people who mostly started with us as apprentices and continued their training as foremen, foremen and division managers or are now independent entrepreneurs. We actively support the further development and training of our employees and encourage them. read more