A homeowner in New Port Richey, FL noticed voids and depressions forming around the foundation of his home and an adjacent retaining wall. These signs pointed to unstable soil conditions, a common problem in Florida due to erosion, poor compaction, and seasonal moisture changes.

Left unchecked, the instability could have caused:

• Foundation settlement and cracking
• Retaining wall tilting or collapse
• Costly structural repairs

The homeowner contacted Helicon for a permanent soil stabilization solution that would protect both the house and the retaining wall.

Injecting chemical grout under and around a home’s foundation requires precision. Without expert control, several problems can occur:

• Overlifting the foundation – High-pressure injection can raise the slab unevenly, causing cracks and misalignment of doors/windows.
• Grout misplacement – Material can migrate into unintended areas like sewer lines or unplanned voids.
• Uneven coverage – Missing voids can leave pockets of instability, leading to repeat settlement.

Helicon’s team specializes in controlled, targeted injection techniques to ensure uniform soil stabilization without unintended side effects.

Helicon used a two-part polyurethane chemical grout injection process to stabilize the soils beneath and around the foundation and retaining wall.

Process Overview:

1. Strategic injection point layout – 38 points around the home and retaining wall perimeter
2. Material application – 940 pounds of two-part polyurethane grout
3. Soil binding & void filling – Foam expanded upon contact, compacting loose soils and creating a solid, water-resistant base
4. Dual structure protection – Both the home foundation and retaining wall were reinforced simultaneously

This approach provided deep soil densification and long-term stability, protecting against further erosion and settlement.

Why Soil Instability Happens in Florida

Florida’s soil profile often consists of sandy, porous material mixed with layers of organic matter. While these soils are great for drainage, they can also:

• Wash out during heavy rains or flooding events
• Compress under the weight of structures if poorly compacted
• Shift when groundwater levels rise and fall seasonally

In Pasco County and Tampa Bay, homes are especially vulnerable when retaining walls and foundations share load-bearing soils. Stabilizing both structures at the same time—as in this case—prevents one from failing and undermining the other.

Benefits of Polyurethane Injection for Foundations & Retaining Walls

Choosing polyurethane injection over traditional soil stabilization methods offers several advantages:

• Non-invasive – Minimal excavation compared to other foundation repair methods
• Fast curing – Supports loads within minutes of injection
• Lightweight & strong – Won’t add weight to already weak soils
• Water-resistant – Maintains stability even in saturated conditions
• Long-lasting – Creates a permanent bond with surrounding soils

Helicon’s proprietary injection process ensures consistent coverage and optimal soil binding, even in the unpredictable subsurface conditions common in Florida.

The Results

With the injections complete, the homeowner now has:

• A stabilized home foundation resistant to shifting soils
• A structurally sound retaining wall
• Peace of mind knowing both critical structures are protected from future soil movement
• A cost-effective repair completed in days rather than weeks, without major excavation

By reinforcing the soils supporting both the home and the retaining wall, Helicon delivered a dual-protection solution that will stand the test of time.

Why New Port Richey Homeowners Choose Helicon

From Pasco County to Tampa Bay and beyond, Helicon is Florida’s go-to expert in foundation repair, soil stabilization, and concrete lifting. We understand the unique soil conditions in our region and deliver fast, lasting results with minimal disruption.

Schedule your free evaluation at https://heliconusa.com/contact/ to protect your foundation and retaining walls.