Agricultural buildingCanal constructionConcrete repairDemolition worksDredgingEarthworksGarden and landscape constructionHydraulic engineeringIndustrial construction and hall buildingOutdoor facilitiesPaving worksRemediation worksRenewable energiesRoad constructionTransport servicesUnderground construction
Building technology/ building services (building automation)Gas installationHeatingRemediation worksRenewable energiesSanitarySheet-metal worksSolar panelsStoves and fireplacesVentilation