Basement Crack Repair - Injecting the crack with polyurethane
Crack injection with polyurethane is the standard repair that many crack repair contractors do in Quebec. In order for this kind of repair to work well, the ports need to be inserted all the way to the middle of the crack in your basement wall. Once the polyurethane starts oozing out from one or both sides of the wall (if the outside is visible), the repair should be good.