Have you read the so-called guarantees that these inside companies give you w/an inside method? Every single one I`ve read states almost word for word that they"Do Not cover DISCOLORATION of walls" and "Do Not cover STRUCTURAL repair"! Ya know why? They don`t cover discoloration on-in basement walls (mold/efflorescence) because the inside method cannot STOP water/moisture from entering the walls through cracks,if ya don`t stop the moisture ya won`t stop the mold etc! And the inside method cannot & does not take hydrostatic pressure & roots off the outside of a wall which causes cracks & even bowing/shifting of walls.And most homeowners problems(seepage)are cracks and other openings that are outside which allow water/moisture inside.The inside method will "divert" water that has already come into & through a wall...under the floor. http://www.bobvila.com/ArticleLibrary/Task/Repairing/FoundationFailures.html http://jlcnet.com/banner/nbp2.html http://www.portcement.org/pdf_files/IS239.pdf