Hi. I wonder if you can advise me. I need 4 inch hole drilled through the wall to install new toilet waste pipe. The wall is partially brick, partially plasterboard on timber framework (see photo). The wall is tiled with extremely hard porcelain tiles 450 x 450mm. I have been advised that there is a strong possibility that the tiles may crack or came off the wall during the drilling process especially because of the plasterboard on timber construction.
I would like to know if cutting a square hole in the tiles and then drilling through the brick wall is a safer option (i presume an angle grinder would not cause vibrations)
tia
Rafal
I would like to know if cutting a square hole in the tiles and then drilling through the brick wall is a safer option (i presume an angle grinder would not cause vibrations)
tia
Rafal