Has anyone had epoxy lining done in their cast iron plumbing?

Question

So my friend is recently in a position where they may have to replace their main sewer line connecting the house to the street. One of the contractors said they had a new machine that could do epoxy lining of the cast iron plumbing system underneath the house. The upside is that they wouldn't have to dig up the floor or anything like that. The machine would apparently do the epoxy liner by being snaked thru the pipes is my understanding.

Anyone know exactly if anything can go wrong with this and how costly that could be? Would my friend be better off getting new pipes if/when needed rather than doing an epoxy lining?

Matt Ziegler · Answer

We have a SFH built in the 1950's, with cast iron sewer main. We have been getting  it snaked twice a year as a preventative measure. Last time it backed-up up tenants called another plumber to snake it. They videoed the line and suggested a Nuflow coating after hydrojetting the line. the cost for this project was bid at around 10K.

We opted for quarterly snaking the line instead at around $120.00 per time..we figured it will be more cost effective....

Hope this helps.

Beth Matherne · Answer

@Bruce Park I didn’t know this was an option but we are also in this same position. We are snaking it roughly quarterly as well. I would like to hear more from people who have tried the epoxy or different methods.

Bruce P. · Answer

Thank you @Matt Ziegler, I've been collecting multiple points of view as I find the quality (and frankly honesty) varies from plumber to plumber.