Why do moulds come back after cleaning?

Professional mould cleaning can remove the active mould, but if there is some hidden water somewhere in the home, the mould can start up again pretty quickly. It’s almost like the roots are still there, even when the surface looks all better and clean. In other words, if the moisture source is not dealt with, mould will just find the same spot, and it keeps going, even if you wiped everything away.

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