Mold and why its important to treat

Many visual detractions from your property like dirt and algae are relatively harmless... however mold is not.

  The big difference is that surface contaminants ( Like dirt and algae) can be cleaned completely,  mold actually grows roots and those roots, if they get too deep only encourage the return of the appearance of black mold and can harm the structure of the substrate (concrete, paint,stucco,wood) that the roots are growing in.  Simply put don't let mold go for too long before treating it.