Air conditioningBuilding technology/ building services (building automation)Gas installationHeatingNatural stone worksRemediation worksSanitarySolar panelsTiles and panelsVentilation
BricklayingDrillingDry constructionFaçade worksFire protectionGeneral contractorsIndustrial construction and hall buildingInsulationInterior constructionPlasteringRemediation of hazardous substances / Asbestos abatementRemediation worksScreed workSealing worksShellStair constructionStructural engineeringStuccoesTiles and panelsUnderground construction