The neighbour living next-door to a house that I let, has written to me to let me know that since November, she has become aware that she can hear my tenant moving about, taking a shower etc. She believes that there might be a crack in the party wall and is implying that it must be on my side.
As the wall in the bathroom is tiled, I wouldn't be able to see. This is also the case in the kitchen. I'm at a bit of a loss to think of how to resolve this. I could always hear sounds from her house when I lived there and assumed that the ways were very thin. I would consider getting a surveyor in, but am concerned about paying for an investigation when ither may not be a problem or the issue may be on her side. Has anyone had anything similar?