Cured-In-Place Pipe (CIPP) is a trenchless rehabilitation method used to repair existing pipelines. This innovative technique is employed to fix damaged, leaking, or deteriorating pipes without the need for extensive excavation. The process involves inserting a flexible, resin-coated liner into the existing pipeline. Once in place, the liner is inflated and cured (hardened) using heat, ultraviolet light, or steam, which creates a new, durable pipe within the old one.

CIPP is widely used in the rehabilitation of sewer lines, water mains, gas pipes, and industrial pipelines. It is especially beneficial in urban areas where digging up streets or yards would be disruptive and costly. The method is efficient, reducing the time and expense associated with traditional pipe replacement. Additionally, CIPP extends the lifespan of the pipeline and improves its structural integrity.