Seawall Cost Breakdown Guide
The lines priced apart: replacement-by-material, repair, and permit and inspection lines each stand inside their own frame, never summed into a length total.
Orange County, CA · Updated 2026 · Costs shown as ranges — your quote will vary by installer and scope
The lines, priced apart by frame
| Cost line | Frame A reading | Frame B reading |
|---|---|---|
| Replacement-by-material line | no separate figure printed; the priced lines are the length totals | vinyl $150-$300, wood $150-$250, steel $200-$400, concrete $300-$600 per linear foot |
| Repair line | no separate figure printed in this frame | $100-$250 per linear foot, as listed |
| Permit and inspection line | no separate figure printed in this frame | $500-$2,000, as listed |
| Finished-wall line | $150-$600 per linear foot; average project $15,000-$60,000 | counted off the material lines in this frame |
In Frame A the priced lines are the length totals themselves; no material, repair, or permit figure is printed apart from a length total. Frame B prints the line figures, and the wall whole prices on the seawall hub.
Replacement and repair lines, as reported: counted inside their own frame
| Cost line, as published | Reading | 2026 band |
|---|---|---|
| Vinyl replacement | Frame B, by material per linear foot | $150-$300 |
| Wood replacement | Frame B, by material per linear foot | $150-$250 |
| Steel replacement | Frame B, by material per linear foot | $200-$400 |
| Concrete replacement | Frame B, by material per linear foot | $300-$600 |
| Repair | Frame B, repair line per linear foot | $100-$250 |
| Permits and inspections | Frame B, permit line as listed | $500-$2,000 |
The line figures sit as readings inside Frame B alone. None is added to a length total.
The length totals behind the lines, as reported
| Cost line, as published | Frame | 2026 reading |
|---|---|---|
| 25-foot wall, finished | Frame A | $3,800-$15,000 per wall |
| 50-foot wall, finished | Frame A | $7,500-$30,000 per wall |
| 100-foot wall, finished | Frame A | $15,000-$60,000 per wall |
| 150-foot wall, finished | Frame A | $22,500-$90,000 per wall |
| Finished wall, per linear foot | Frame A | $150-$600 per linear foot |
Frame A prints its figures as finished-wall totals by length. Frame B counts the replacement by material and the repair by the foot, apart from those totals.
The separate and unpriced lines, as reported
| Cost line, as published | Frame | 2026 reading |
|---|---|---|
| Replacement by material, as a standalone line | Frame A | no separate figure printed |
| Repair, as a standalone line | Frame A | no separate figure printed |
| Frame B lines, summed into a length total | Frame B | no such line printed |
| Concrete replacement and repair, as Frame B lines | Frame B | $300-$600 and $100-$250 per linear foot |
The Frame B line figures are the only line-level figures apart from the length totals. Named apart, never a line here: retaining walls for landscaped grades, boat docks and piers, and pool walls and coping.
Reading a breakdown quote
- Line named beside every figure
- Each line read on its own frame
Frequently asked questions
What is the priced line in a seawall breakdown, as reported?
In Frame B the priced lines are the material and repair lines: vinyl at $150 to $300, wood at $150 to $250, steel at $200 to $400, and concrete at $300 to $600 per linear foot, repair at $100 to $250, and permits and inspections at $500 to $2,000. In Frame A the priced lines are the length totals.
What does the concrete replacement line print at, as reported?
Frame B prints concrete replacement at $300 to $600 per linear foot. Frame A prints no separate material figure; its readings are finished-wall totals by length, at $150 to $600 per linear foot with an average residential project at $15,000 to $60,000.
What does the repair line print at, as reported?
Frame B prints repair at $100 to $250 per linear foot as a repair line. Frame A prints no standalone repair figure; its priced lines are the length totals alone.
What do the permit and inspection lines print at, as reported?
Frame B prints permits and inspections at $500 to $2,000 as one permit line, beside the material lines and the repair line. Frame A prints no permit figure apart from a length total.
Can the breakdown lines be added into one total?
No. The line figures sit in Frame B as material and repair readings, the length totals sit in Frame A as finished-wall readings, and no combined total is printed here. No Frame B line is summed into a Frame A length total, on a page pricing seawall and bulkhead construction and repair alone.