Whilst doing some kitchen renovation I noticed a rather large hole in a cinder block wall the size of half a block. It seems that it was done with a lump hammer in order to plumb in some pipes. There are also two cracks emanating from the hole.
The hole is on a wall that supports the stairs.
How should I go about fixing the problem?
Best Answer
This wall does look more like plasterboard/plaster & lathe than it does any sort of cinder block/Concrete Masonry Unit (CMU). The wall cavity just isn't thick enough for a CMU before there's what looks like a finished wall on the other side.
If that's the case, I'd suggest cutting back the rough edges until you find some sort of stud (on each side), then do a simple plaster board repair on the wall. There should be plenty of examples here of how to do that, but if you can't find an explanation that makes enough sense to you, ask a new question and indicate your specific stumbling block.