Carpentry worksCrane work and rentalFaçade worksInsulationPhotovoltaicsRemediation of hazardous substances / Asbestos abatementRemediation worksRoof greeningRoof sealRoofing worksScaffoldingSealing worksSheet-metal worksWindowsWooden construction
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