I am worried about some cracks appearing on my internal walls. Horizontal hairline crack either side of a wall perfectly mirrored. When I knock on the wall it is a hollow sound (don’t know what this means). I’ve got a diagonal sort of staircase type crack on the wall next to the window. And a long vertical crack between 2 walls. Can anyone advise me on what action I should take and is this worrying? Thank you
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Internal wall cracks
- Thread starter Gmjx
- Start date
DIYnot Local
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