Yes, we had that done at the previous (old) property we lived in. It was a tree root (they love water) that had damaged the waste pipe from a downstairs wc. The drainage guys managed to cut away the roots and then inserted one of said resin liners. They had to remove the wc and then replace it when the job was done. SWMBO's niece lives there now and as far as I know it's been ok ever since. I thought it was a pretty clever solution. House insurance paid for it.