Special areas of building inspection

In order to be able to inspect engineering structures completely hand-in-hand, special access techniques are required for many structures. On the one hand, these can be inspection equipment, but on the other hand, some structures can only be inspected by specially trained personnel.
For these challenges, some building inspectors have additional training in the areas of rope-assisted working techniques, engineering diving and special tests on wooden structures.


Here you will find our references!


Head of department
Dipl.-Ing. (FH) Thomas Oeljeklaus

Rope assisted working techniques


Among our qualified building inspectors are trained rope access technicians with FISAT certificate who can carry out industrial climbing operations (Level 3). The rope-assisted working techniques give us the opportunity to inspect structures in areas that are difficult or impossible to reach with conventional access techniques. The work is carried out exclusively using standardised special equipment. In addition, the employees who have been trained as rope access technicians receive annual repeat instruction in industrial climbing.

Use of engineering divers


Our team in the field of building examination includes five engineers with VFIB certificate for building examiners, who also have a recognized training as professional divers (certified research diver, certificate of the DGUV). This enables us to put together a ready diving team for the testing of components in underwater areas at any time. The advantage of this is that every diver can also carry out the building inspection. Our employees have many years of experience in diving in flowing and stagnant waters with and without tides. Restrictions by ship traffic of any kind with the appropriate safety precautions are routine for us, as well as the application and consideration of the water and shipping police permits.

We offer the following services in the underwater area:

  • Main/ simple/ and special tests, as well as object-related damage analyses on concrete, steel, wood, masonry and composite components according to DIN 1076
  • image and video documentation including live video transmission to the surface
  • Survey work
  • sampling
  • Scanning of the bottom of the river with a 3D sonar
  • Ultrasonic material thickness measurements of ferromagnetic materials such as highly corroded sheet piles or steel girders


Here you can learn more about research diving

Special tests on wooden structures


Tests are carried out on wooden bridges and wooden supporting structures in civil engineering and building construction. The components are tested using the ultrasonic echo method. The beams are examined non-destructively for core rot. With this measuring technique a statement can be made about larger component surfaces. The wooden surfaces are not damaged or soiled. Damages detected can be further investigated with the non-destructive drilling resistance measurement. With this method, a statement can be made about the remaining strength of the wood. The results are presented in measurement curves. The tests and the evaluation of the results are carried out by a test engineer with additional training in timber construction.

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