Air conditioningAssembly worksBricklayingConstruction dryingDrillingElectrical installationGas installationHeatingRemediation worksRenewable energiesSanitaryTiles and panelsVentilation
Building technology/ building services (building automation)Electrical installationGas installationHeatingRenewable energiesSanitarySolar panelsVentilation
Electrical installationFaçade worksIndustrial construction and hall buildingPlant engineeringRenewable energiesRoof sealRoofing worksSealing worksSolar panels