Size for Size Replacement, Up-sizing and Sliplining

A tried and tested method for trenchless rehabilitation of existing pipelines which can be used to stop infiltration and restore structural integrity to an existing pipe.

One tried and tested method of pipe rehabilitation is sliplining, the process of pulling or pushing a new pipe of smaller diameter into an existing pipe and grouting the annular area between the pipes to prevent leakage and provide structural integrity. Advantages of this kind of trenchless technology include reduced surface disruptions, lower reinstallation costs, and shorter construction times. The maximum diameter of the smaller pipe is usually about 10% smaller than the existing pipe to allow for easy installation and is made of high-density polyethylene (HDPE) which we prefer for its structural integrity and flexibility.