Building technology/ building services (building automation)Cable layingCommunication technologyData network worksDoors and gatesElectrical installationFire protectionIndustrial construction and hall buildingLighting systemsLightning protectionPhotovoltaicsPlant engineeringRenewable energiesSafety technologySewage treatment plantsSolar panels
Agricultural buildingBricklayingCarpentry worksConcrete worksConstruction materialsDoors and gatesDry constructionEarthworksIndustrial construction and hall buildingJoinery worksPaving worksPlasteringReinforced concrete worksRoofing worksScreed workShellTiles and panelsTurn-key constructionWindows