The core activity of Effi Bau AG consists of providing services in the field of civil engineering and road construction, including demolition, excavation, sewerage, environmental works, construction roads, utility lines, natural stone paving, retaining wall construction and asphalt laying. In addition, the company also offers gardening services, transport services and the deployment of specialized machinery such as conveyor belts, concrete mixers, dump trucks, heavy transports, concrete pumps and cement silos. In the field of building construction, Effi Bau AG offers services such as the creation of subfloors, concrete, insulation, waterproofing and the installation of various floor coverings such as screed, anhydrite, visible concrete and terrazzo. The company also offers general contracting and project development services. Overall, the core activity of the company can be described as comprehensive construction and services in the field of civil engineering and building construction.