Assembly worksCarpentry worksDoors and gatesDry constructionFlooring worksIndustrial construction and hall buildingInsulationInterior constructionJoinery worksParquetryPlumbing workRemediation worksRoof sealRoofing worksWinter gardensWooden construction
Building technology/ building services (building automation)Gas installationHeatingJointing workPlumbing and sheet-metal workRemediation worksSanitarySolar panelsTiles and panelsVentilation