
Before
Here you can see the water staining on the wall and the floor as a result of water leaking from the crack.
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During
Here you can see the urethane injection foam penetrating the wall, filling the voids, and coming back out through the crack for a complete and total seal.

After
Here you can see the foam has been cleaned up and the wall has been properly sealed. This leaky wall crack will no longer be a problem for this homeowner!