The construction, design and service activities in the field of construction with a focus on land, transport, underground, water supply and special construction. These buildings then are single-family houses, but also industrial buildings, roads, railways or bridges.

Chemical control of wood and masonry structures against wood-destroying fungus, insect, mould, fire. Mycological survey, appraisal. Assessment of quality status of wood structures. Fire control: -steel structures -air-conditioning -cables. Rodent control. Disinsection. Disinfection. Maintenance, wood preservation. Steeping. Protection ...