We have a cast iron flange and the bolt holes are not useable can we cut off the top and add a new plastic flange

I'm replacing the tile floor in a bathroom. It appears the backer board goes under the toilet flange. The flange itself is PVC and the slots (for the screws that hold the toilet inplace) are both broke. How do you replace the flange? Do you have to cut the pipe and re-glue a new flange on or...

I would like to know how to remove old toilet flange(PVC). The old flange is rusted and broke. I just had a new ceramic floor installed and do not want to damage it. I tried to buy a replacement ring that just bolts over the old flange but the placement of the mounting bolts would over lap onto...

The toilet in the attached apartment needed a new wax ring because of leakage.After the toilet was removed I found a broken pvc closet flange.It was broken where the flange bolt slides in it's slot.It looks like someone glued a 4" closet flange on a stub of 3" pvc that is 3.5" long.The other end of...

Hi! I'm new to the site, and have found tons of useful information, but I now have several possible routes to take, and I don't know which one will be best for me. I am retiling my bathroom, and I have a cast iron flange that is much too high and has a crack in it. I've read that I can lower...