having a crack in the basement wall with water leakage during heavy rains. Interstress came in and assessed what could be done. An epoxy filler was used by injection into the crack. This was a much better option than digging arounf the foundation on the esterior, and the price was actually better than going the digging route, never mind saving the hassle of cleanup and resodding the lawn. Very professional and knowledgeable.