Building technology/ building services (building automation)Cable layingCommunication technologyData network worksDoors and gatesElectrical installationFire protectionIndustrial construction and hall buildingLighting systemsLightning protectionPhotovoltaicsPlant engineeringRenewable energiesSafety technologySewage treatment plantsSolar panels
Building technology/ building services (building automation)Electrical installationHeatingPlant engineeringRemediation worksRenewable energiesSanitaryVentilation
Assembly worksDoors and gatesDry constructionEarthworksElectrical installationFaçade worksFire protectionIndustrial construction and hall buildingInterior constructionLocksmith worksMetal constructionPlant engineeringRoofing worksSanitaryShellSteel constructionTransport servicesTurn-key constructionWindows