Repairs are permanent because we epoxy seal cracks from the inside PLUS pressure seal from the outside! We install drain tile systems and sump pumps! Via Angie's List: Sealed the foundation from the outside by the base of the chimney. Dug a 3 foot down and sealed the crack and filled in a hole. I called American Waterproofing in early august and they came out immediately. They assessed the problem and offered a simple solution. I have two other companies come out, however their solutions were much more complicated and costly.