Recent Review: Plumbing problem or issue: In my old house built in the 1930's, the lead-caulked cast iron flange was set too high off the floor and was angled badly. The riser pipe is also cast iron. Because of this poor installation, the toilet didn't set on the floor properly and eventually started to leak and damage wood in the floor below. The house is a single story structure and has a crawlspace rather than concrete slab. After examining the problem on his first visit, Larry or David (sorry, don't remember which) spent a lot of time making sure I understood the plumbing problem and my options. Their solution: They cut away about one foot of the upper portion of the cast iron pipe with flange and replaced it with a PVC pipe with attached PVC flange. Old cast iron pipe and new PVC pipe were joined with a rubber gasket with ring clamps. They used long lag screws or bolts to fasten the flange to existent wood below the floor. They then installed the new toilet and caulked with transparent sealant.