Pressure pipe rehabilitation refers to the trenchless repair or renewal of pressurized pipelines—such as water mains, force mains, and industrial pipelines—without the need for open-cut excavation. Techniques like cured-in-place lining, sliplining, pipe bursting, spray-in-place coatings, and structural inserts are used to restore hydraulic capacity, prevent leaks, and extend service life. The method selected depends on the pipe’s material, diameter, operating pressure, and degree of deterioration.