Seawall Repair FAQ

Seawall repair in Florida typically costs between $150 and $600 per linear foot, depending on the repair method and extent of damage. Polyurethane injection repairs often range from $3,000 to $15,000 for a standard residential seawall. Full replacement runs $500–$1,200 per linear foot. Most homeowners spend $8,000–$40,000 for significant repairs. We provide free inspections and written estimates — call 866-398-9323 to schedule yours.

Seawall damage caused by a sudden, accidental event (like storm surge during a named hurricane) may be covered under your homeowners or flood insurance policy. Gradual deterioration from aging, corrosion, or erosion is typically excluded. We recommend contacting your insurer before scheduling repairs. We can provide documentation of damage and repair costs to support your claim.

Polyurethane injection typically costs 20–40% of full seawall replacement. A section that would cost $50,000 to replace can often be stabilized with polyurethane injection for $8,000–$20,000. The savings depend on the seawall's structural condition — injection works best when the panels are intact but soil erosion has caused voids and leaking.

Yes. Financing options are available for qualifying homeowners. Ask about financing when you schedule your free inspection at 866-398-9323.

Most residential seawall repairs are completed in 1–2 days. Polyurethane injection jobs typically take 4–8 hours. Helical tieback installation takes 1 day for most residential seawalls. Full panel replacement or major reconstruction projects run 3–7 days. We will give you a timeline at your free inspection.

Polyurethane injection is a non-invasive seawall repair method where a two-part expanding foam is injected through small holes drilled through the seawall panel. The foam fills voids in the soil behind the wall, stops erosion, and stabilizes the structure. It cures in minutes and reaches full strength within 24 hours. No heavy equipment is needed — repairs can be done from the water or land.

Helical tiebacks are steel anchors driven into stable soil behind a seawall to counteract the horizontal pressure pushing the wall toward the water. They are used when a seawall is leaning, bowing outward, or showing horizontal cracking — signs that hydrostatic pressure has overcome the wall's original structural capacity. Installation takes one day for most residential seawalls.

In most Florida coastal counties, seawall repairs require a permit from the local building department and may also require approval from the Army Corps of Engineers or the Florida DEP, especially if work is near or within navigable waterways. We handle all permitting on your behalf as part of our service. Requirements vary by county — we will confirm what is needed during your inspection.

Key warning signs include: cracks running horizontally across seawall panels (structural failure sign); soil or sand washing out through the seawall base or weep holes (erosion in progress); the wall leaning or bowing toward the water; sinkholes or depressions in the yard near the seawall; water pooling behind the wall after rain; and visible rust staining from corroding reinforcement steel. Any of these warrant a professional inspection.

The main causes are: tidal fluctuations causing cyclic wetting and drying of the soil; storm surge and wave action eroding the soil behind the wall; saltwater corrosion of concrete and steel reinforcement; hydrostatic pressure buildup from heavy rainfall with no drainage; boat wake from nearby channels; and tree root intrusion near the wall footings. Florida's sandy soils are particularly prone to erosion once any gap or crack opens.

Concrete seawalls typically last 30–50 years with proper maintenance. Steel and vinyl seawalls last 20–40 years depending on conditions. Most seawalls built in the 1970s–1990s in Florida are now reaching the end of their original design life. Regular inspections every 3–5 years can catch early-stage issues before they become full replacements.

We serve coastal communities throughout Florida, Georgia, and South Carolina. In Florida: Tampa, Miami, Fort Lauderdale, Naples, Sarasota, Cape Coral, Clearwater, St. Petersburg, Fort Myers, West Palm Beach, Jacksonville, Pensacola, Destin, and 100+ other coastal cities. In Georgia: Savannah, Brunswick, St. Simons Island, and the Golden Isles. In South Carolina: Hilton Head, Charleston, Beaufort, and surrounding Lowcountry communities.

Yes. We hold Florida Certified Building Contractor license CBC1267322. We are fully insured and carry NCFI certification for polyurethane injection systems. Copies of our license and insurance certificates are available upon request.

Call us at 866-398-9323 (Monday–Friday 7am–6pm ET, Saturday 8am–2pm ET) or complete the inspection request form on our Contact page. We will schedule a free on-site inspection, assess your seawall, and provide a written repair estimate at no cost.