Cured-in-place pipe (CIPP) lining is the specific structural method behind our trenchless repair work — a resin-saturated liner installed inside the host pipe and cured into an independent, seamless new pipe. This page covers the technical specifics: materials, cure methods, standards, and what to expect from a properly-installed liner in the Columbia, SC area.
CIPP stands for cured-in-place pipe — a category of trenchless pipe rehabilitation covered by ASTM standards F1216 (inversion installation) and F1743 (pulled-in-place installation). The finished liner is a fully structural pipe, meaning it can stand on its own even if the surrounding host pipe deteriorates further. That's an important distinction: CIPP isn't a coating or a patch. It's a real pipe installed inside another pipe.
The installation is straightforward in concept: a flexible tube (usually needle-punched polyester or fiberglass) is saturated with a two-part thermoset resin, inserted through an existing access point, inflated so it presses against the host pipe wall, and cured until the resin hardens. What comes out the other side is a seamless, jointless, chemically-resistant pipe.
We match the resin to the job. For most residential sewer laterals in Columbia and the Midlands, we default to a two-part epoxy — it's forgiving during installation, produces a robust cured liner, and has an excellent long-term track record on the pipe materials we typically see (cast iron, clay, Orangeburg). For more demanding environments — industrial waste streams, higher temperatures, aggressive chemistry — we use vinyl-ester resin, which is more chemically resistant but requires tighter installation control.
Cure method depends on liner size, resin type, and site conditions:
Ambient and steam cure cover almost all residential and light-commercial CIPP work in Columbia, SC.
Look for these credentials when comparing CIPP contractors:
We're happy to discuss the specific system and standards behind any quote we give you — good CIPP work has nothing to hide.
A properly installed CIPP liner is smooth, seamless, and slightly lighter in color than the original pipe. On camera it presents as one continuous surface with no visible joints, no ridges, and no folds. Water flows over it hydraulically better than the original pipe — often improving drainage in older lines. We camera every lined pipe on completion and share the footage with you.
CIPP is the right answer when a pipe is structurally deteriorated but still holds its shape. Cracks, longitudinal splits, root intrusion, corrosion, and channeling are all textbook CIPP cases. Full collapses, severe belly-shaped sags, and pipes that have completely lost their round shape usually require a different approach — either pipe bursting or targeted excavation. We tell you which category your pipe is in after a camera inspection, and we don't pretend CIPP fits a job it doesn't.
Every CIPP job we do starts with a camera inspection so you know exactly what's in your line. Then we quote in writing before we touch anything.