We just bought a house that was built in 1941. The bathroom doesn't have a toilet paper roll holder, so my husband tried to install one. In 4 different areas of the wall he hit something solid and our drill can't get past it. In the kitchen I tried to hang a broom holder (lightweight 4 broom holder) and when I ran the stud finder (with electrical detection) it alerted to wires running throughout the wall. When I tried to hang a plastic bag holder on the wall it bent 4 different screws. What could this be? cinderblocks/concrete?
I appreciate all the help, I'm at a total loss