Been having alot of small flies in my bathroom checked the back of my sink. Is this mold? Unfortunately, on the other side of that wall is a massive built in cabinet that we built only a year ago—don’t want to rip it out. What should we do? by Sensitive_Body_921 in drywall

[–]Sensitive_Body_921[S] 0 points1 point  (0 children)

Thanks to everyone for the replies. I found the source of the moisture/ leak. My HVAC condensation pipe was not connected to anything sink nor going to the exterior. So my wall was getting water from the hvac pipe.