The short answer
There is no single price for a seawall. Small crack and cap repairs are usually priced per job, often in the low thousands of dollars. New walls and full replacements are priced per linear foot, and on a typical canal lot they can run into five or six figures. The only reliable number for your wall is a written quote after an on-site look.
The ranges below are typical published figures, not quotes. They come from South Florida contractors and inspectors who post their pricing online, and each one is linked so you can read it in context.
| Work | Typical published range | Source |
|---|---|---|
| Hairline crack sealing | $800 to $2,500 per job | JKT Marine |
| Crack injection (epoxy or polyurethane) | $2,000 to $8,000 per job | JKT Marine |
| Seawall cap repair, partial | $1,500 to $4,500 per job | JKT Marine |
| Seawall cap replacement, full | $3,000 to $10,000 per job | JKT Marine |
| Tieback anchor installation | $10,000 to $30,000 per job | JKT Marine |
| Moderate repairs (crack injection, spot panel repair, cap resurfacing) | $100 to $250 per linear foot | Souffront |
| Full panel and tieback replacement | $400 to $600 per linear foot | Souffront |
| New vinyl sheet pile seawall, installed | $175 to $275 per linear foot | JKT Marine |
| New concrete panel seawall, installed | $250 to $400 per linear foot | JKT Marine |
| Engineering and permits | $2,000 to $5,000 engineering, $800 to $3,000 permits | JKT Marine |
| Visual seawall condition inspection | $250 to $495 for a typical home | Barnacle Doctor, ACI |
Full replacement figures vary the most. One Fort Lauderdale guide puts full replacement at roughly $350 to $1,200 per linear foot (Waterfront Repair FL), and a Fort Lauderdale real estate team cites $1,500 to $2,500 or more per linear foot for a full run (Josh Dotoli Group). The spread reflects very different scopes: a simple vinyl wall in front of an old one is a different job from removing a wall, rebuilding it to the 5 foot elevation standard, and permitting it through several agencies.
What moves the price
- Length of wall. Most structural work is priced per linear foot, so length is the biggest single factor.
- Condition and cause. Sealing one crack is a different job from re-anchoring a leaning wall or filling voids where soil has washed out.
- Access. Narrow side yards, pools and mature landscaping can push work onto a barge on the water side, which changes equipment and labor.
- Material. Vinyl or composite sheet piles, concrete panels and steel have different installed costs and lifespans.
- Elevation. If the job counts as a substantial repair, the wall has to meet the tidal flood barrier elevation (5 feet NAVD88, or 4 feet for applications before 2035 when designed to reach 5 feet). Raising a wall adds concrete, steel and sometimes new piles. See our Fort Lauderdale height rule explainer.
- Rip-rap. Some Broward codes require natural limerock rip-rap or another approved habitat feature on the water side of the wall: Pompano Beach for all tidal flood barriers (Sec. 151.05), and Fort Lauderdale for new walls in marine waters where no seawall existed before (Ordinance C-23-05). That adds material and placement cost.
- Engineering and permits. Structural seawall work in Fort Lauderdale needs sealed plans, surveys with existing and proposed elevations, a city building permit and a Broward County license for work in county waters (city checklist, Broward 311).
- Docks and neighbors. A dock that has to come off and go back on, or a return wall where your new wall meets a lower neighbor, adds scope.
A worked example (arithmetic, not a quote)
Take a 75 foot canal wall. At the published $250 to $400 per linear foot for a new concrete panel wall, the wall alone works out to about $18,750 to $30,000. Add the published $2,000 to $5,000 for engineering and $800 to $3,000 for permits and the same project lands around $21,550 to $38,000 before any dock work, demolition or difficult access. At the higher full-replacement figures some Fort Lauderdale sources publish, the same 75 feet could cost several times that. This is why two honest quotes for "a new seawall" can be far apart, and why the scope line items matter more than the headline number.
How the elevation rule can change your budget
In Fort Lauderdale, a repair becomes a "substantial repair" when it modifies more than 50 percent of the length of your shoreline, or when it costs more than 50 percent of the fair market replacement cost of the existing structure (city ordinance text). Once you cross that line, the wall has to be built to the tidal flood barrier elevation along your entire shoreline. Ask your contractor to price two options where it makes sense: a targeted repair that stays under the threshold, and a compliant rebuild. Then you can see the real trade-off.
How to compare seawall quotes
- The contractor's Florida license number, which you can check on MyFloridaLicense.com, and a certificate of insurance.
- A written scope with line items: crack or joint work, cap, panels, tiebacks, backfill, rip-rap, dock removal and reinstall.
- The finished top-of-wall elevation, stated in feet NAVD88, and whether the job counts as a substantial repair.
- Who prepares the engineering and surveys, and who pulls the city permit and the Broward County license.
- A schedule that separates permitting time from construction time, plus warranty terms and a payment schedule tied to milestones.
Requesting a quote through us is free. We connect you with a licensed, insured local seawall contractor who inspects the wall and gives you a written quote.