Polyurethane Injection
Our polyurethane system is engineered for long-term performance, with a typical lifespan of 20 to 50 years depending on environmental conditions.The material is a closed-cell foam, meaning it does not absorb water. This is critical in coastal environments, where constant moisture and water movement can break down traditional fill materials over time. By resisting water intrusion, the foam maintains its structure and helps prevent future erosion and washout.
In addition to durability, the material is designed with environmental safety in mind. Once cured, it is inert and non-toxic, meaning it won’t leach harmful substances into the surrounding soil or water. Because the installation process is precise and minimally invasive, there is little disturbance to your property or the surrounding ecosystem. There’s no large-scale excavation, no removal of existing materials, and no unnecessary impact to nearby structures or shoreline conditions.The result is a reliable, long-lasting stabilization solution that performs in harsh environments while remaining a responsible choice for your property and the environment.
Traditional seawall replacement can cost $500–$2,000 per foot, often requiring excavation, demolition, and weeks of disruption. Because of that, many property owners assume replacement is their only option when they see signs of settlement or voids.In reality, the issue is usually loss of supporting soil behind the seawall—not failure of the seawall itself.As water moves through the ground, it can wash out or loosen the soil behind the wall, creating hidden voids. This loss of support causes the surface to sink and can make the seawall appear compromised, even when the structure is still in place.
Our solution targets that root problem.
Using specialized polyurethane injection, we introduce a high-density foam beneath the surface. The material expands along the path of least resistance, allowing it to reach and fill voids deep within the soil. As it expands, it densifies and stabilizes the surrounding ground, restoring support without adding harmful pressure to nearby structures.Because this process is non-invasive, there’s no need for excavation, heavy equipment, or teardown. Most projects are completed quickly, minimizing disruption while delivering long-term stabilization.
Most importantly, we do not repair or replace seawalls. Our work is strictly focused on stabilizing the soil behind them—addressing the underlying cause rather than replacing structures that may not need it.This approach allows property owners to avoid unnecessary replacement costs while extending the stability of the ground around their seawall.
Coastal Stabilization Systems provides a smarter, more efficient solution to protect your property by stabilizing what matters most—the soil.