Seawall Repair & Replacement Cost Guide (2026)
Prices below are published third-party estimates, mostly national averages from HomeGuide, "Seawall Cost" (accessed Oct 2026). They are not quotes. Palm Beach County jobs often land on the higher side because of saltwater exposure, barge access and engineering requirements.
| Item | Typical range |
|---|---|
| Seawall inspection | $200 – $600 per visit |
| Non-structural repairs (caps, tiebacks, joints, anchors) | $100 – $250 per linear ft |
| Seawall replacement | $150 – $600 per linear ft |
| Typical 100-ft residential wall | $15,000 – $60,000 |
| Complex jobs (barge access, large backfill) | $600 – $1,000 per linear ft |
| Old seawall removal | $50 – $150 per linear ft |
| Marine engineer plans for permit | $2,000 – $3,000 |
| Permit fees | $100 – $400 (varies by jurisdiction) |
Source for all rows: HomeGuide, "Seawall Cost" (accessed Oct 2026).
Local data points
- Hypoluxo: WPBF reported a damaged seawall repair estimated at about $6,500 (WPBF, "Damaged seawall causing major dispute in Hypoluxo").
- Palm Beach: the town's Midtown Beach public seawall replacement is expected to cost about $20 million, a municipal project, not a residential benchmark (Palm Beach Civic Association, "Midtown Beach seawall replacement set for early 2027").
What drives price
- Linear footage and wall height
- Material: concrete, vinyl, steel, riprap
- Access: land vs. barge
- Condition: repair vs. full replacement, and whether new anchors are needed
- Engineering, permits, and any environmental review
The best way to know your number is to get two or three itemized quotes. Related: repair · replacement · cap repair
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