This service utilizes advanced Fold-and-Form (FFPP) and UPVC technology to rehabilitate high-pressure water mains and industrial transmission lines with minimal diameter loss. The liner is inserted in a reduced shape and then expanded using heat and pressure to create a tight-fit, independent structural pipe inside the old host. This method effectively targets internal corrosion, pinhole leaks, and tuberculation, restoring the pipe's original flow characteristics and pressure rating. It provides a durable barrier that protects against future degradation while avoiding the high costs of traditional pipe replacement.