How Invasive Iguanas Are Damaging SWFL Seawalls And How Foam Stabilization Restores & Protects Them
In Southwest Florida, waterfront living is part of the dream. But throughout Collier County and Lee County, invasive iguanas are quietly causing serious structural damage behind seawalls and many property owners don’t realize the problem until cracks or soil loss appear.
If you’re noticing settling, gaps, or erosion behind your seawall, iguanas may be part of the cause.
The good news? You don’t always need a full replacement. Polyurethane seawall stabilization is the most effective and long-lasting solution to restore strength and prevent further damage.
Why Iguanas Are a Real Threat to Seawalls
Green iguanas are not native to Florida, and their burrowing behavior creates major structural issues for waterfront properties.
They:
🌊 Dig deep nesting tunnels behind seawalls
🌊 Displace and loosen supporting soil
🌊 Create hidden voids that collect water
🌊 Accelerate erosion during heavy rains and tidal changes
Over time, these burrows weaken the soil that supports your seawall. When soil density decreases, pressure on the wall structure increases, leading to cracking, separation, and eventual failure.
Many homeowners seek traditional seawall repair when they notice damage. But in most cases, the real issue isn’t the concrete; it’s what’s happening behind it.
What’s Actually Happening Behind Your Seawall
When iguanas dig tunnels, they create hollow pockets in the soil. As tides rise and fall, water moves into those voids and washes more material away.
This leads to:
🌊 Soil erosion near the seawall
🌊 Voids forming under caps and slabs
🌊 Settlement of surrounding hardscapes
🌊 Increased hydrostatic pressure
🌊 Long-term structural instability
Simply patching cracks or adding surface repairs does not solve the underlying soil problem.
That’s where polyurethane seawall injection is the most effective method for restoring structural support and stopping further degradation.
How Seawall Stabilization with Foam Restores Strength
At Ocean Spray Foam, we use advanced seawall reinforcement with polyurethane foam to stabilize and restore compromised soil conditions.
Here’s how it works:
🌊 Targeted injection behind the seawall
🌊 Expanding foam fills iguana tunnels and hidden voids
🌊 Soil densification strengthens loose ground
🌊 Hydrophobic properties resist water intrusion
🌊 Pressure is reduced on the wall structure
This process acts as deep injection stabilization, compacting the surrounding soil and eliminating the hollow areas iguanas created.
It’s clean.
It’s minimally disruptive.
And it restores structural support without replacing your entire seawall.
Learn more about our professional Seawall Stabilization & Repair services here:
👉 https://oceansprayfl.com/seawall-stabilization-and-repair
Will This Help Keep Iguanas From Coming Back?
While no solution can fully control wildlife behavior, foam injection significantly reduces the loose, hollow soil conditions iguanas prefer.
When tunnels are filled, and soil is densified:
Burrowing becomes much more difficult
Nesting areas are eliminated
Structural voids are no longer attractive
When combined with responsible property management and local wildlife control, seawall stabilization restores both structural integrity and long-term durability.
Why SWFL Property Owners Choose Ocean Spray Foam
We proudly serve SWFL, including Collier County and Lee County, delivering:
🌊 High-quality workmanship
🌊 Prompt, reliable service
🌊 Clear, hassle-free communication
Our focus isn’t just on injecting foam; it’s on protecting your waterfront investment and giving you peace of mind.
If you’re seeing soil loss, cracking, or settling behind your seawall, don’t wait for it to turn into a major repair.
Protect Your Waterfront Investment 🌴
Invasive iguanas may be part of life in Southwest Florida, but structural damage doesn’t have to be.
If you suspect erosion, voids, or burrowing activity behind your seawall, call Ocean Spray Foam today at (239) 444-7792 to schedule a professional evaluation.
Or reach out through our Contact Page here:
👉 https://oceansprayfl.com/contact
Let’s reinforce your seawall the right way. 🌊
