Property drainage

High demand for pipe rehabilitation

The total length of drainage systems on private and industrial properties is far greater than the public sewer system. Studies in various regions recorded a leakage of 50 to 70 percent. One fifth of the tested pipes should be rehabilitated in the short to medium term to avoid more serious damage in the future. There is so much to do – let’s go for it.

The Problems


Through defective pipes wastewater can enter into the ground. The discharge of pollutants into the ground is illegal and contamination of soil and groundwater must be avoided.


If clean groundwater and rainwater enters faulty sewage pipes, it must be cleaned at the treatment plant and this leads to a significant increase in sewage charges.

Value of the property

Leaking pipes can cause a wet basement, a blockage or even a collapse of the pipes during heavy rainfall. If the damage is detected in time, it can be easily removed and expensive consequential damage can be avoided.

With the proven BRAWOLINER® system, the rehabilitation measures can be carried out quickly, permanently and cost-effectively.

No opening of walls and grounds necessary!
Result after curing: a new pipe in the old pipe

In-house Rehabilitation

Rehabilitating the Building Drainage Without Dirt and Noise

Moist walls, musty odours and mould formation are common types of damage in buildings. The cause of this is often leaking waste water pipes, from which waste water leaks into the surrounding such as walls and ceilings as well as the building stock.

The rehabilitation of waste water pipes in buildings is subject to special regulations and strict structural engineering rules.

A particular challenge is created by high or fluctuating temperatures, as can occur, for example, in the kitchen or the washing machine area.

To make sure that the rehabilitation work is successful over the long term, the materials used must withstand the stresses and strains. In addition, for fire safety reasons all rehabilitation solutions for wastewater pipes in buildings must meet at least German building materials class B2 in accordance with DIN 4102-1.


The BRAWOLINER® HT rehabilitation system meets all structural engineering requirements and, what is more, have the demanding DIBt certification for the rehabilitation of waste water pipes inside buildings.

The Rehabilitation Solutions for Defective Pipes Inside Buildings up to DN 50

BRAWOLINER® HT was specially developed for in-house rehabilitation. This involves a high-tech textile hose, which is soaked with epoxy resin and then inserted into the defective pipe by means of air or water pressure. In doing so, BRAWOLINER® HT completely lines the pipe and thus eliminates all existing and also any potential damage.

The result is a completely new, watertight pipe in the old pipe with improved structural properties.

Complete Rehabilitation Without Uncovering The Pipes – This is How it is Done:

Just like going to see a doctor, the examination plays an important part before the rehabilitation of defective waste water pipes too. This is done with the aid of a special duct inspection camera. Before rehabilitation work starts, the camera images provide information about the state of the old pipe. The TV run shows fragments, cracks, bends and inlets so that the subsequent rehabilitation steps can be planned using the image material.

The old pipe is then cleaned by flushing it with water. Once the old pipe has been cleaned of all dirt and residue, the rehabilitation process can begin. A camera run also makes sense after the rehabilitation. In this way the success of the rehabilitation work is visually checked and verified.

Advantages of the BRAWOLINER® rehabilitation system:

  • Without excavation and chiselling work
  • Suitable for nearly all damage profiles and pipe materials
  • Much shorter rehabilitation times
  • Rooms remain inhabitable during rehabilitation
  • Environmentally friendly, sustainable and permanent
  • Lasts for over 50 years
  • Up to 50 % cheaper than open construction method
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