I just used a franchised operation here in New Hampshire called "Basement Systems". I think they are probably in most states. Their service is not cheap but they were really good. They were extremely helpful and friendly. They send out a rep first to check out the situation, explain exactly what needs to be done and then give you the cost. We had a narrow, water-oozing crack that developed in the back wall of our basement They injected it with polyurethane and installed what is in effect a backup leak protection by putting in a drain below the crack with a foam product called Flexispan. They gave a lifetime, transferable guarantee. There is a Basement Systems state-by-state search on line at:

http://www.basementsystems.com/search/index.php?term=07501