Very often, when an Inside system/method of ‘water-diverting’ is done, they will install-place a sheeting against the wall(S). IMO, this is done to hide/conceal the walls. Others may tell you this is part of their system/package and/or, was done so any moisture/water will fall Behind this sheeting and into their inside drain tile or baseboard system.
Facts are, NO Inside system on this Planet can Stop/Prevent water from entering cracks or Other Outside openings and so, it will also not stop/prevent Mold,efflorescence, possible radon and termite entry and…it cannot stop/prevent any lateral or hydrostatic pressure off the Outside of basement walls, now or in the future. These pressures and even tree roots can crack, bow
n even collapse walls inward. Im NOT saying you do have any of these problems now, but you might and don
t know it cause you cant see the walls.
http://www.yodergroup.com/concrete.asp <-- read 6th,7th paragraphs
Are there times when sump pumps are needed? Sure! Are there times when an Inside drain tile method is needed with a sump? Yup, but those times will ONLY be with homes in high water table area…home built on a spring, stuff like that. But Most people get water/seepage in the basement due to Outside cracks `n other openings, anyone who tells you differently is misinformed and/or has their own self serving agenda.
And, even when a sump or inside system is necessary in these certain areas, many homeowners will still have crack `n other outside openings which will need to be waterproofed & backfilled correctly, outside! Yes, some of those homes will need both.
Radon http://www.epa.gov/radon/pubs/physic.html http://cbs2chicago.com/health/local_story_034173519.html
Termites http://www.mipca.org/Termites.htm http://www.askthebuilder.com/Termites_Turn_Wood_to_Dust.shtml
Dig to find out ‘who’ did the work! Even without the paperwork, if you find and call who did the work and then ask them if they are going to transfer the guarantee, imo should NOT be Any problem at all IF this company ‘really’ gives a shtt, if this company has, as many claim, such High Standards and Ethics, how ` why would it be so hard to back up the work they were paid to do and guarantee,regardless if paperwork is lost. Yeah, maybe a lil too much wishful thinking but what do ya have to lose at this point.