Building plumbingCarpentry worksCrane work and rentalElectrical installationETICSInsulationLightning protectionNatural stone worksRemediation of hazardous substances / Asbestos abatementRoof sealRoofing worksScaffoldingSolar panels
Air conditioningBuilding plumbingBuilding technology/ building services (building automation)Electrical installationHeatingRefrigerationRemediation worksSanitary