Seawall Repair Cost in
South Florida
You're trying to figure out if this is a $5,000 fix or a $50,000 project before you call anyone. That's fair. Here are real numbers — straight from a contractor who does this work every week in Palm Beach and Broward County.
Get a Free Inspection — (561) 418-0383Licensed CGC1537758 & Insured·Family-Owned·All Permits Handled
How Much Does Seawall Repair Cost in South Florida?
Seawall repair costs in Palm Beach and Broward County range from $2,000 for minor crack sealing all the way to $80,000+ for full replacement. The range is wide because seawall repair covers everything from patching a hairline crack on a 40-foot canal wall to completely replacing a 200-foot Intracoastal seawall with new engineering and permits. The sections below break each type out so you can find where your situation actually falls.
Seawall Crack Repair Cost
Cracks are the most common seawall issue we see throughout Palm Beach and Broward County — and the most misunderstood. Not all cracks mean the same thing. Here's how to read what you're seeing and what it's likely to cost.
| Crack Type | What It Means | Repair Method | Cost Range | Urgency |
|---|---|---|---|---|
| Hairline surface cracks | Normal concrete aging | Preventive epoxy sealing | $800–$2,500 | Non-urgent |
| Horizontal mid-wall cracks | Hydrostatic pressure buildup | Epoxy injection + drainage | $2,000–$6,000 | This season |
| Through-cracks with water seeping | Active infiltration — soil washing out | Polyurethane foam injection | $3,000–$8,000 | Urgent |
| Cracks with soil loss behind wall | Void formation — structural risk | Injection + tieback evaluation | $5,000–$15,000+ | Emergency |
| Multiple cracks + wall leaning | Structural failure beginning | Tiebacks or full replacement | $15,000–$50,000+ | Emergency |
How Crack Injection Works
For active cracks with water infiltration, we inject epoxy or polyurethane foam directly into the crack under pressure. The material expands to fill the void, bonds to the concrete, and stops water from moving through the wall — which also stops soil erosion behind the wall. Most crack injection jobs are completed in 1–2 days with no heavy equipment needed.
Seawall Cap Repair & Replacement Cost
The cap is the concrete beam that runs along the top of your seawall. It holds the wall panels together, ties into tiebacks, and takes most of the surface abuse from salt air, UV, and foot traffic. Cracked or crumbling caps are one of the most common repairs we do throughout Palm Beach County.
| Cap Condition | Recommended Action | Cost Per Linear Foot | Typical Total (50 ft wall) |
|---|---|---|---|
| Minor surface cracking, no spalling | Crack seal + waterproof coating | $20–$45/ft | $1,000–$2,250 |
| Spalling, exposed rebar, moderate damage | Partial cap repair / section replacement | $60–$120/ft | $3,000–$6,000 |
| Severely cracked, settled, or failed | Full cap removal & replacement | $100–$200/ft | $5,000–$10,000 |
| Cap + drainage improvement needed | New cap with weep holes | $120–$220/ft | $6,000–$11,000 |
Why Caps Fail in South Florida
South Florida's combination of salt air, intense UV, tidal fluctuation, and wet/dry cycles is brutal on concrete. Rebar inside the cap corrodes when saltwater penetrates, expands as it rusts, and cracks the concrete from the inside out. Most caps on walls more than 15–20 years old show some level of deterioration.
Vinyl vs. Concrete Seawall — Cost & Comparison
When a seawall reaches the end of its life and repair no longer makes sense, you choose between two primary materials: vinyl sheet pile or concrete panel. Both work well in South Florida — but they suit different situations.
Which Should You Choose?
For protected canals and lake-front properties — vinyl is often the better value. Faster, lower cost, no corrosion, and a long lifespan. Most residential canal-front homes in Palm Beach and Broward County are good candidates for vinyl.
For Intracoastal frontage and open water — concrete is the stronger choice. The heavier mass handles wave loading better and the longer lifespan justifies the higher upfront cost.
Full Seawall Repair & Replacement Cost Table — 2026
Every repair type we perform in South Florida, with honest price ranges for Palm Beach and Broward County projects.
| Repair / Service | Cost Range | Timeline | Permit Required? |
|---|---|---|---|
| Free Seawall Inspection | $0 — Always Free | Same week | No |
| Hairline crack sealing | $800–$2,500 | 1 day | Sometimes |
| Crack injection (epoxy/polyurethane) | $2,000–$8,000 | 1–2 days | Yes |
| Seawall cap repair (partial) | $1,500–$4,500 | 2–3 days | Yes |
| Seawall cap replacement (full) | $3,000–$10,000 | 2–5 days | Yes |
| Tieback anchor installation | $10,000–$30,000 | 3–7 days | Yes |
| Riprap / revetment | $5,000–$20,000 | 2–5 days | Yes |
| Vinyl sheet pile seawall (new) | $175–$275/linear ft | 1–2 weeks | Yes |
| Concrete panel seawall (new) | $250–$400/linear ft | 2–4 weeks | Yes |
| Full seawall replacement (all-in) | $25,000–$80,000+ | 2–4 weeks + permits | Yes |
Local Pricing Examples — What Actual Projects Cost
Representative examples from projects we have completed throughout Palm Beach and Broward County. Use these to benchmark where your project might land.
Repair or Replace? Here's How We Think About It
The honest answer: most seawalls in South Florida can be repaired, not replaced. The majority of walls we inspect — even older ones — fall into the repair category.
Repair when:
The wall is structurally plumb, damage is limited to the cap or surface cracks, and the underlying panels are still solid. Most 30–40 year old walls in protected canals fit this description. Repair cost is typically 15–40% of full replacement cost.
Replace when:
The wall has rotated significantly, has multiple through-failures with active soil loss, or is so deteriorated that repair would only buy 2–3 more years. We will never push you toward replacement if repair is the honest answer.
| What You're Seeing | Likely Diagnosis | Urgency |
|---|---|---|
| Small surface cracks, minor cap spalling | Cap deterioration — repair or replace cap | This season |
| Water pushing through cracks, soil loss behind wall | Active infiltration — crack injection needed | Urgent — call now |
| Wall tilting or bowing outward | Hydrostatic failure — tiebacks needed | Urgent — structural |
| Land settling behind the wall | Void formation — serious structural failure | Emergency |
| Hairline cracks only, wall is plumb and solid | Normal aging — preventive sealing recommended | Non-urgent |
| Staining or discoloration on wall face | Mineral leaching — inspect more closely | Monitor |
Permits for Seawall Repair in South Florida
All seawall work in Palm Beach and Broward County requires permits. Unpermitted work causes serious problems at resale and during insurance claims. JKT Marine handles every filing — you don't touch any paperwork.
Palm Beach County Building Division
Required for all structural seawall work. Processing time is typically 4–10 weeks for standard residential projects.
South Florida Water Management District (SFWMD)
Required for most seawall repair and all replacement projects. Often reviewed concurrently with the county permit.
Florida DEP
Required when work is near seagrass, mangroves, or environmentally sensitive habitat. More common on Intracoastal and ocean-access properties.
Army Corps of Engineers
Required for navigable waterways and larger structural projects. We handle all Army Corps coordination when required.
Seawall Cost FAQ — South Florida
Need a real quote? Call JKT Marine.
Family-owned South Florida marine contractor. The owner is personally on every job site. Free seawall inspections throughout Palm Beach and Broward County — no pressure, no obligation.
(561) 418-0383Or email photos to info@jktmarine.com for a fast ballpark
Serving West Palm Beach · Jupiter · Boca Raton · Fort Lauderdale · Delray Beach · Boynton Beach · Lake Worth · Stuart
Free seawall inspection — Palm Beach & Broward County. No obligation.
Call (561) 418-0383