From Cape Coral's canals to Charlotte Harbor and the Collier coast, a failing seawall usually isn't about the wall — it's the soil disappearing behind it. We fill those voids and re-stabilize the ground with polyurethane injection, and it's my specialty across Southwest Florida.
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Southwest Florida is defined by its water — thousands of waterfront homes sit behind seawalls on saltwater canals, Gulf-access waterways, and harbor frontage. Every one of those walls is under constant load from tides, rain, irrigation, and, a few times a decade, hurricane surge.
The wall panels usually outlast the ground behind them. Our loose, sandy soil escapes through weep holes, panel joints, and small cracks, and once it starts moving it hollows out voids behind the concrete cap. From the water everything can look fine while the backyard, deck, or driveway quietly loses its support.
Rather than the cost and demolition of replacing a wall that's still sound, we go after the real problem — the empty space and loose soil behind it:
We read the warning signs and map where soil has washed out behind the cap so the repair targets the real problem areas.
Expanding, waterproof resin is injected behind and beneath the wall, flowing into the voids and binding the loose sand.
As it cures, the resin locks the soil in place and helps seal the joints and weep points that let sand escape, slowing future washout.
We confirm the ground behind the wall is supported again before the job is done.
Badly broken panels or failed tiebacks can call for more than injection alone — the inspection tells us honestly which path your wall needs.
I work waterfront seawalls across the region. Find your area:
Protecting Florida homes since 1989 — family-owned, licensed, bonded, and insured, with more than 45,000 projects completed statewide and an A+ rating from the BBB. Rated 4.9 stars across 1,500+ five-star Google reviews. As a Foundation Supportworks dealer, we install engineered, warrantied repair systems — with a local rep who works your streets.
Warranty: Every seawall repair is backed by a written warranty; we review the exact terms with your free written proposal. Standard exclusions apply (e.g. Acts of God such as hurricanes and floods).
In most cases it is soil loss, not the wall itself. Water moving in and out with the tides, plus rain and irrigation, carries sandy soil out through weep holes and joints. That leaves voids behind the wall, and the ground above them loses support. Fixing the soil is what makes the repair last.
Often no. When the wall is structurally intact and the problem is voids and washed-out soil behind it, polyurethane injection restores support without demolition. Full or partial replacement is reserved for walls with real structural failure.
The cured resin is waterproof and does not break down like soil does, so it holds the ground in place long-term. No repair stops the ocean, but sealing the escape points dramatically slows the washout that caused the problem.
Yes, our repairs are backed by a written warranty. We review the specific terms for your job when we provide the proposal.
A void behind the cap only grows. Get a free, no-obligation seawall inspection and a written proposal from your local Southwest Florida seawall specialist.
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