Skip to content


Safely preserving existing structures.

Rehabilitating existing structures requires a deep understanding of historic fabrics and many years of experience. From bridge refurbishment to building restoration or even the professional repair of brickwork in historic buildings – here at Stump-Franki we can offer you the perfect method for your needs.

One particular challenge is building in existing structures, as the available planning documents for existing buildings do not always reflect the actual situation. This makes implementation difficult and requires agile planning. Our extensive range of technical capabilities allows us to quickly adapt to individual conditions on the construction site. This guarantees that we hand over your project on schedule.

Our range of services includes:

Planning expertise for safe and economic implementation

Our skilled engineers are on hand to provide you with comprehensive advice right from the planning stage. We develop the technically and economically optimum solution for your construction scheme on the basis of your specifications.

The best result for every geotechnical challenge

Benefit from our decades of expertise in specialist civil engineering and problem solving skills – especially when it comes to challenging construction tasks. As an experienced advisor, we can provide you with expert support, even in the event of unexpected problems, and ensure successful completion of your project.  We have the entire range of specialist foundation engineering methods at our disposal.

Customer benefits

  • In-house technical staff
  • In-house specialist equipment
  • All methods from a single source
  • Outstanding expertise in planning and execution
  • Specialist company certified for the preservation of listed buildings
  • Special qualifications include a German SIVV licence, a pressurised equipment operating license, and subsequent reinforcement connections in accordance with ETA

Selected reference projects

Masonry and concrete rehabilitation
Cleaning and restoration of natural stone masonry Leinekanal . Göttingen
Injection grouting
Stabilisation of a historic city wall . Aachen
Masonry construction
estoring the historic dam wall . Kerspetalsperre
Castle . Lichtenstein