Building plumbingInsulationPlumbing and sheet-metal workRemediation of hazardous substances / Asbestos abatementRoof greeningRoof sealRoofing worksScaffolding
Air conditioningBuilding plumbingBuilding technology/ building services (building automation)Dewatering worksFaçade worksGas installationHeatingRoofing worksSanitarySolar panelsStoves and fireplacesVentilation