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Polyurethane Injection

Polyurethane Injection

Polyurethane injection is the most common repair for basement leaks. Polyurethane injection is a versatile product used exclusively in the water proofing of concrete foundation walls and structures.


Polyurethane expands twenty times its size. Its flexibility allows for the natural movement of the foundation. At BH Foundations we use high pressure injection to resolve and water infiltration problem, even on actively leaking cracks.

The method is as follows.
  • Fill cracks with hydraulic cement.
  • Drill into crack and install injection ports. Seal ports with zerts.
  • Once Hydro is dry, inject crack with polyurethane.
  • Clean the work area.