Cast Iron Pipe Repair reline aging cast iron before corrosion causes a full failure.

WHAT IT IS

What cast iron pipe repair actually involves.

Cast iron pipe repair addresses the two failures that end the service life of cast iron sewer lines: internal corrosion that thins the pipe wall, and mineral scale buildup that narrows the bore. Both are caused by decades of exposure to drain chemistry, hydrogen sulfide gas, and hard water minerals.

LiningWorks cast iron pipe repair always begins with a camera inspection to measure corrosion depth and scale thickness. Depending on what the camera finds, the repair path is one of three: descaling to restore bore, CIPP lining to seal corrosion and cracks, or both in sequence on the same visit.

The CIPP liner bonds to the interior of the cast iron wall and creates a new, seamless pipe surface, stopping corrosion progression, sealing cracks, and restoring near-full bore diameter. The liner is rated for 50+ years and does not corrode.

Every cast iron pipe repair quote is flat-rate and derived from what the camera actually finds, not from a general estimate based on pipe age. You know the scope and cost before work begins.

CATCH PROBLEMS EARLY

Cast iron pipe conditions that require repair before complete failure.

These four signs indicate your cast iron sewer line is actively failing. Each one is resolvable with trenchless cast iron pipe repair, but only before the pipe wall collapses.

• Corrosion pitting visible on camera inspection

  Pitting on a cast iron pipe wall is a sign of active hydrogen sulfide corrosion. Cast iron pipe repair with CIPP lining stops the corrosion and seals the pitted surface.
• Scale buildup narrowing the bore over time

  Decades of mineral deposits narrow the bore progressively. Cast iron pipe repair descaling removes the scale; lining prevents new buildup on the restored surface.
• Recurring blockages in an older cast iron sewer

  When cast iron lines block repeatedly despite cleaning, the rough, corroded interior is accumulating debris faster than it can be cleared. Repair restores the smooth liner interior.
• Pre-purchase camera inspection reveals interior corrosion

  A camera inspection before buying a home with cast iron sewer shows you exactly how much service life remains, and whether cast iron pipe repair is a pre-close or post-close cost.

BEFORE & AFTER

Corroded cast iron under a slab, repaired trenchlessly, verified clean.

A 1955 Eastover home with 4-inch cast iron under the slab showing active corrosion and 8mm of scale. Descaling recovered the bore; CIPP lining sealed the corroded wall. No saw-cutting, no jackhammering. Job complete in one day.