In hopes of saving myself the cost for anticimex, I'm wondering if there is a consensus here about this dried moisture damage.
It could be something that spilled from above, rain coming in from an open window, or an old leak from an older bathroom. The current bathroom is from 2010.
From the drill holes visible in the pictures, there came sawdust that was completely dry.
Is it possible to draw conclusions from these pictures, or will I not be able to sleep well at night without anticimex drilling from below and measuring? View attachment 404936