I'm replacing the sub-flooring and will be tiling. I know that the toilet flange will be low, and it is chipped on one side where the toilet bolts go. I see two options (there could be more...):

  1. leave it alone and once the tile is complete, get a repair plate and build up to correct height.

  2. since there is a stainless sleeve easy to access, replace the complete section and set to correct height before buttoning up the floor

Is there an obvious answer here? I don't see a problem leaving it alone, but I don't want to regret it! Here is a picture: enter image description here


1 Answer 1


Option 2, definitely.

Height issues aside, a damaged flange gives a high risk of loose toilet syndrome, which turns into leaky toilet syndrome, which turns into angry spouse syndrome when you have to re-tile.

  • 2
    Completely agree, now is the time to replace it. Also, height issues not aside, a ring at the proper height (flush with the finished floor) also reduces chances of compromised wax seal, i.e. compromised spousal relationship. Commented Dec 31, 2016 at 23:28
  • 1
    ok - I did the right thing. It took 10 minutes to remove it. It's a 3x4 16" cast iron pipe with the toilet flange sweated on. I'm not sure what to expect at depot. I'm hoping the ABS is 2 pieces or something very similar. I'd appreciate any comments on what to expect ABS-wise. Thanks for supporting choice #2 and for the proactive marital therapy!
    – rebar
    Commented Jan 1, 2017 at 1:37
  • You'll end up with another coupler to go from cast to abs; 2 sections of pipe and an elbow. Perfect world would include a bit of framing to screw the flange to. This could be as simple as a couple of 2x4s across the existing framing.
    – User95050
    Commented Jan 1, 2017 at 18:54

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