Pipes that run through foundation walls are often sealed with concrete, hydraulic cement, or even caulk, but sometimes they remain unsealed.
These unsealed pipe penetrations can cause groundwater from penetrating the basement and can lead to mold and mildew growth and other undesirable issues.
To fix these type of water leaks, various solutions have been attempted, each with varying degrees of success. We use polyurethane polymer injection, which is the best method availabe.
We've been fixing pipe penetration leaks for many years in Rhode Island, nearby Massachusetts, and nearby Connecticut.
Urethane polymer injection is the best solution for sealing pipe penetrations in foundations. Urethane's elasticity allows it to adapt to the walls' expansion and contraction, and its ability to expand up to 20 times its volume makes it effective for filling even hairline cracks and pinholes.
It cures faster than epoxy and can be applied to both dry and wet surfaces. At Concrete Pro Works, we've used the urethane injection process on pipe penetrations with great success for many years in foundations in Rhode Island, Massachusetts, and Connecticut.
Usually, the polyurethane is injected around the outside of the pipe, but in some cases, we've also injected it inside which resulted in positive results.