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Sewer rehabilitation

Damaged sewers can be rehabilitated using various technical methods, in closed or open construction. We evaluate the technical and economic requirements, create a rehabilitation concept and decide together with you which method to use.

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Hose liner /
inline rehabilitation methods

Damaged pipes are lined with a special inliner fabric. During rehabilitation, these needle felt or fibreglass fabrics are impregnated with 2K epoxy resin, making them extremely durable and long-lasting. The new “wall thickness” can be up to 16 mm. Finally, we reopen the sewer branches with a remote-controlled robot cutter.

  • Efficient cleaning of pipe diameters between 50 and 400 mm
  • Method successfully used for many years
  • No excavation necessary
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Horizontal drilling

If rehabilitation of the outdated piping is impossible and excavation work is too expensive or undesirable due to the conditions, a new pipe can be installed. Various horizontal boring or displacement methods are used for this approach.
  • Most economical form of re-piping
  • Up to a pipe diameter of 500 mm
  • Minor excavation work required
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Manhole rehabilitation

Manholes suffer from years of exposure to biogenic sulphuric acid as well as environmental factors such as frost, earth movement, vibration, and sewer backups. Concrete and masonry repair methods are used for rehabilitation, and in severe cases, new construction is required.
  • Rehabilitation with concrete and masonry repair methods
  • Quick to implement
  • Excavation work only required for new construction
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Grouting and injection work

Very small cracks or holes in drains, sewers and manholes caused by earth movements, vibrations, etc. can usually be filled very quickly and cost-effectively or grouted using a special injection technique.
  • Fast and cost-efficient procedure
  • Only applicable for very small cracks and holes
  • No excavation necessary
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Excavation – reinstallation – master builder work

If sewer rehabilitation has to be carried out using the open trench method, we offer you all sewer and master builder work from a single source. Thus we avoid possible coordination difficulties with external companies and can guarantee the professional repair of your sewer in all respects.
  • All earthworks and excavations
  • Replacement of pipelines as well as yard and basement renovation
  • Restoration of surfaces
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OUR SERVICES AT A GLANCE

Sewer inspection

Do you experience issues with your sewer? Using various inspection methods, we will identify the cause, document the situation and rectify the problem.

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Sewer & pipe cleaning

Regular cleaning of sewers and pipes prevents possible clogging and flooding and is a must in the long run. Should you still experience an issue, we will help you immediately and competently.

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Sewer rehabilitation

We have several methods for rehabilitating broken / damaged sewer pipes at our disposal. From those, we select the one that is technically and economically most suitable.

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Service & maintenance

Prevention is better than loosing money. Professionally maintained sewer and pipe systems only incur marginal costs in the long run.

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