When cracks occur in concrete that are structural in nature, the strength of the surface is compromised. If left untreated, the surface could fail completely, causing moisture incursion, concrete failure, or other catastrophic outcome.

Epoxy injection is a process whereby epoxy is forced under great pressure into cracks in concrete. When properly performed, the repaired crack is actually stronger than the adjacent concrete, and the integrity of the surface is restored.

The injection process is also utilized when water flows through cracks in buildings, especially in below-grade situations where access to the exterior of the surface is not practical. By injecting the crack with epoxy, not only is the integrity of the concrete restored, but also the water penetration is eliminated.

Chemical grout injection is utilized when water penetrates a surface, but not necessarily via identifiable cracks, or when there are so many cracks that injecting each one individually is not cost effective.

Using this procedure, an expanding waterproofing grout is injected through a wall surface, to the back (exterior) side of the surface. When the chemical grout encounters water or moisture, it expands to many times its original size. This grout can lay dormant for extended periods, in an "un-activated” state until it encounters water.

Urban Waterproofing uses only the highest grade injection epoxies and chemical grouts available, including Chemco, Sika , DeNeef, and Webac.