Gas, water and drainage systems within buildings - primary school on Albert-Schweitzer-Straße (GGS), here: OGS, Albert-Schweitzer-Straße 38, Gelsenkirchen
Heating systems and central water heating systems - primary school on Albert-Schweitzer-Straße (GGS), here: OGS, Albert-Schweitzer-Straße 38, Gelsenkirchen
Drainage concept with soil tests - ARENA PARK, south of the BAB A2 - west of Adenauerallee - north of Herbert-Burdenski-Weg - east of Stadionring, 45891 Gelsenkirchen
Electrical, security and information technology systems - street lighting Bismarckstraße from Florastraße to Olgastraße, Bismarckstraße, 45888 Gelsenkirchen