Warranty coverage for trenchless pipe lining varies by the plumbing contractor performing the work, the pipe lining system being installed, and the manufacturer’s warranty requirements. Many participating plumbing professionals offer workmanship warranties in addition to manufacturer warranties on approved lining materials.

Before work begins, ask your plumbing professional to explain the warranty coverage, including what is covered, how long the warranty lasts, and any maintenance requirements needed to keep the warranty in effect. Written warranty documentation should be provided after the project is completed.