This work deals with the refurbishment, renovation and renewal of pressure and pressureless pipelines for the transport of gas and drinking water, the determination of the efficiency of the various processes against the open process and the disposal of wastewater. This issue will be a major challenge for all network operators in the coming years, which can save money by applying the advanced technology. The poorer the financial situation of the state or the municipality, the more important it is to save a lot of money, particularly in the supply of the population and the economy with drinking water or gas well thought-out systems for the canalization or renovation by digging procedures. An important quality parameter of supply networks is the loss of the medium to be transported and at the same time the term for the structural condition of the pipeline. Damaged pipelines can be a threat to the population as well as to the water resources. Although the trenchless processes have many advantages, there are still too few contractors to renovate or renew the sewage network by means of trenchless processes, compared to the order numbers in this area, and therefore resort to the well-known method of open construction. The hose lining process and the bursting process are trenchless processes for the renovation and renewal of canals. Both methods save time, money and many organizational and emission-related inevitable risks, such as driving, car exploitation, increased CO2 emissions, noise, vibrations, dust development and the system with an open trench. In addition, the nature or the environment is also spared, since the excavation process results in almost no soil excavation and thus trees and shrubs are not damaged. In the hose lining process, a resin-impregnated hose is pressed into the old pipe with water or air pressure to the old pipe wall and leaky or destroyed areas of the old pipe are watertightly sealed and thereby rehabilitated. In the bursting process, the old pipe is destroyed, displaced into the surrounding soil, and at the same time a new pipe is laid in the same route and renewed. The trenchless procedures are a very important part of the sewer network and should be used much more often than the open trench process, as the technique of these processes is very advanced and without much effort with a few exceptions can be used almost everywhere. The methods can be adapted to the channel as well as background conditions and without the fact that one remembers the surface, the channel is rehabilitated or renewed a few meters below the surface.