I took up my kitchen floor(s) yesterday and ended up back at the concrete and have found a couple of spots that are loose and uneven.
The bits that are loose aren't massive but don't sit flat and can be moved by wiggling a screwdriver in the crack.
My plan is to lay thick basalt tiles over the top of this floor - how do I repair it to a decent standard for this?
Edit: The cracks run deep, so whilst the loose bits are only about the size of a dinner plate they are quite thick.
The bits that are loose aren't massive but don't sit flat and can be moved by wiggling a screwdriver in the crack.
My plan is to lay thick basalt tiles over the top of this floor - how do I repair it to a decent standard for this?
Edit: The cracks run deep, so whilst the loose bits are only about the size of a dinner plate they are quite thick.