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
CleaningDoors and gatesDry constructionFlooring worksHeatingJoinery worksNatural stone worksPainting worksPlasteringRemediation worksRenewable energiesSanitaryTiles and panelsWindows