The construction and rehabilitation of buildings and structures are intervention in the environment of people. Therefore, we are always looking for new technologies that are not only environmentally friendly but also acceptable from the point of view. Speed, flexibility, minimum limit for residents and transport, and also a high efficiency is the reason why more and more in recent years carried out the rehabilitation of sewerage using remediation sleeves. One of the systems of trenchless rehabilitation of sewerage systems used in Western Europe is a system company RELINEEUROPE Alphaliner Liner GmBH & co., the company's Technicians have developed one of the most important practices in the area of trenchless rehabilitation of sewerage systems. A large proportion of the development also has operators and owners of the pipeline. Technology offers very high quality of carried out restorations. This article describes the procedures for ensuring the quality of the used in Germany, which is a world leader in the development, production and use of this technology.