Air conditioningBuilding technology/ building services (building automation)Gas installationHeatingPlant engineeringRemediation worksRenewable energiesSanitarySolar panelsTiles and panelsVentilation
Bridge constructionCivil engineeringDrillingIndustrial construction and hall buildingPlant engineeringReinforced concrete worksSpecialised civil engineering workUnderground construction
Building technology/ building services (building automation)Cable layingCommunication technologyData network worksElectrical installationIndustrial construction and hall buildingLighting systemsLightning protectionPhotovoltaicsPlant engineeringRenewable energiesSafety technologySolar panels