Cast iron typically corrodes from the inside while the pipe wall itself often remains intact.
Epoxy Pipe Coating For Cast Iron Pipes
Epoxy Pipe Coating for Cast Iron Pipes
Seal corroding cast-iron pipe from the inside instead of tearing it out and replacing it.
- Free camera inspection with any drain line cleaning
- Free estimate on every job
- Licensed in GA & SC
MaxLiner Certified InstallerCertified on the MaxLiner CIPP system used for our trenchless pipe lining.120+ Trenchless JobsTrenchless repairs completed across the CSRA, residential and commercial.10-Year CIPP WarrantyWorkmanship warranty on trenchless CIPP pipe repairs, tiered by service.
The Detail
Epoxy Coating Built for Cast-Iron Pipe
Cast-iron pipe was standard in Augusta-area homes and buildings built before the 1970s, and it fails in a specific, predictable way: it corrodes and pits from the inside long before the pipe itself cracks or collapses. Epoxy pipe coating is built for exactly that failure pattern — a two-part epoxy is applied to the cleaned interior of the cast-iron line to seal pinhole leaks and stop further corrosion, protecting a pipe that's still structurally sound but wearing thin.
Why Trenchless
Why Cast Iron Is a Strong Candidate for Epoxy Coating
Interior scale and rust buildup gradually narrow the pipe's diameter and reduce flow.
Epoxy coating protects the corroded-but-intact wall from further degradation without removing the pipe.
A common fit for pre-1970s Augusta-area homes and buildings with original cast-iron drain lines.
In Practice
Descaling Cast Iron Before Coating
Cast iron holds scale and corrosion buildup more stubbornly than most pipe materials, so mechanical descaling is a non-negotiable step before coating — the epoxy won't bond to a scaled interior. We pair this coating spoke with Cast Iron Pipe Descaling, priced separately starting at $10/ft once the pipe is accessible, and run both steps as one scheduled job. If a section of cast iron turns out to be too far gone for coating once it's cleaned and inspected, we'll recommend CIPP Pipe Lining instead of coating a pipe that won't hold.
Pricing
Cast-Iron Coating Pricing & Warranty
Epoxy coating for cast-iron pipe uses the same confirmed $125–$175/ft pricing (4–6 inch pipe) as all epoxy coating work — see full Epoxy Pipe Coating pricing for the complete rate sheet alongside descaling costs. Every estimate is free, with a quote required before work begins, and the finished job carries our 10-year workmanship warranty on epoxy pipe coating.
Go Deeper
See Full Epoxy Pipe Coating Pricing
Start with a camera inspection — free with any drain line cleaning — so the quote you get is based on what is actually in your pipe.
Questions
Frequently Asked Questions
Can cast-iron pipe be coated instead of replaced?
Often, yes — if the cast-iron pipe wall is still structurally sound and the damage is interior corrosion rather than cracks or collapse, epoxy coating seals and protects it without full replacement.
Does cast-iron pipe need descaling before epoxy coating?
Yes. Cast iron holds scale and corrosion buildup stubbornly, so mechanical descaling is a required step before the epoxy is applied so it can bond properly.
How do I know if my cast-iron pipe is a candidate for coating vs. lining or replacement?
A camera inspection tells us whether the pipe wall is sound enough for coating. If it's too corroded or thin-walled, we'll recommend CIPP Pipe Lining or excavation repair instead.
How much does epoxy coating for cast-iron pipe cost?
$125–$175/ft for 4–6 inch pipe, the same confirmed rate as all epoxy coating work, with a free estimate and required quote before work begins.
What warranty applies to cast-iron epoxy coating?
A 10-year workmanship warranty on epoxy pipe coating applies to cast-iron coating jobs the same as any other epoxy coating work.
Ready When You Are
Schedule a Free Cast Iron Coating Estimate
Every job starts with a free estimate. Licensed in Georgia and South Carolina.
- Free estimate on every job
- Licensed in GA & SC
- 10-year workmanship warranty on CIPP