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Seawall repair in Bluffton, SC

Cracked caps, open joints and soil washing out from behind the wall, found and fixed before a repair turns into a rebuild. Serving Bluffton, Hilton Head Island and Beaufort.

Call (854) 877-4915

A concrete seawall with a new cap and stone along its base at low tide

What seawall repair covers

A seawall rarely fails all at once. It gives warnings first: a crack in the cap, a joint that opens, a dip in the lawn a few feet back. Caught at that stage, the fix is a repair. Left alone, the soil keeps leaving and the wall starts to lean.

We repair the three places a wall usually lets go.

  • Sealing: closing cracks and open joints so soil stops washing through
  • Cap replacement: breaking out a failed cap and pouring a new one on fresh steel
  • Stone protection at the base: riprap on filter fabric to stop the tide scouring the toe
  • Filling the voids behind the wall once the leak is closed

Signs your wall needs attention

Walk the wall at low tide once or twice a year and look for these. One on its own is worth a call. Two or three together mean the wall is losing soil.

  • Cracks along or across the cap
  • Gaps at the joints between panels
  • Rust stains, which mean water has reached the steel
  • Sinkholes or soft spots in the lawn behind the wall
  • The wall leaning toward the water
  • The bottom of the wall exposed where mud or sand used to cover it

Call (854) 877-4915 for a free estimate.

Repair or replace

Find the cause before pricing the cure. If the wall is standing straight and the damage is in the cap or a few joints, a targeted repair makes sense and keeps the sound sections in place.

If long runs are leaning, the anchors have let go, or soil keeps disappearing after earlier patches, the wall needs a structural look. That may mean replacing a section or redesigning the drainage and the toe.

We tell you which side of that line your wall is on, and why. A wall that needs a new cap should not be sold a rebuild.

What drives the cost of a seawall repair

Seawall repairs range from a day of sealing to weeks of cap and stone work, so we price each wall after seeing it. The estimate is free and itemized. These are the things that set the figure.

  • The length of wall that needs work
  • How far the damage goes: cap only, joints, or the base as well
  • How much soil has been lost behind the wall
  • Access for equipment, from the yard or by water
  • The amount of stone needed at the toe
  • Engineering and permit costs, where the rules call for them

Call (854) 877-4915 for a free estimate.

Seawall permits in the Lowcountry

A seawall sits on the line where the state's tidal critical area begins, so even a repair can need written approval. Small work on a sound, lawful wall within its original size may qualify as maintenance. A rebuild, or any new fill, gets a fuller review.

The local office matters too. In unincorporated Beaufort County, a new bulkhead, riprap or other erosion control structure more than 48 inches tall from existing ground needs plans certified by a South Carolina registered engineer. The towns have their own building and buffer rules.

Your mailing address does not always tell you which office has the say. We confirm who covers your parcel before quoting, so the price includes the paperwork your wall really needs.

Looking after a repaired wall

Most of what kills a seawall is water trapped behind it. Keep the weep holes clear so the ground can drain. Send roof and yard runoff away from the wall, not over the top of it.

Keep heavy loads back from the cap, and do not let trees root into the wall. Then walk it at low tide after any big storm or king tide. A crack caught in its first season is a small job.

How we do it, step by step

  1. A cracked seawall cap at low tide with a spirit level on top and chalk marks

    Step 1

    Inspect at low tide

    We walk the wall with the tide out, put a level on the cap and mark every crack and open joint in chalk, so the estimate covers what is really wrong.

  2. A seawall with the old cap removed, steel bar exposed and timber forms along the top

    Step 2

    Break out the failed cap

    The damaged cap comes off down to sound concrete. New reinforcing steel is tied in and timber forms are clamped along the top, ready for the pour.

  3. Granite riprap on filter fabric at the base of a seawall, with a wheelbarrow

    Step 3

    Protect the base

    Filter fabric goes down along the toe, and granite riprap is placed on top by hand and machine. The stone takes the force of the tide off the wall.

  4. A repaired seawall with a smooth new cap, stone at its base and lawn behind

    Step 4

    Seal, fill and finish

    Joints are sealed, the voids behind the wall are filled and the lawn is put back. You get a wall with a smooth new cap and stone along its base.

Often built together

Seawall Repair: common questions

Something else on your mind? Call (854) 877-4915.

How much does it cost to repair a seawall?

It depends on the length of wall, how deep the damage goes and how equipment can reach it. Sealing a few joints is a small job. A new cap with stone at the base is a larger one. We give an itemized figure after a free inspection.

How do you repair a seawall?

We find where the wall is losing soil first. Then we seal the cracks and joints, replace a failed cap, add stone at the base where the tide has scoured it, and fill the voids behind.

What is a seawall inspection?

A walk along the wall at low tide. We check the cap, the joints, the base, the ends of the wall and the ground behind it, looking for movement and for places where soil is getting out.

Do you need a permit for a seawall repair?

Often, yes. The state reviews work at the edge of tidal water, and your town or county may want a building permit. Minor repairs to a sound wall can qualify as maintenance. We check what applies before we quote.

How long do concrete seawalls last?

It depends on how the wall was built, how hard the tide and boat wake hit it, and whether the drainage works. A wall that drains well and gets small repairs on time outlasts one that is left alone.

When is the right time of year for seawall repair?

The work can be done in any season. We plan around low tides, because that is when the base of the wall is out of the water. If you want it done before boating season, call early.

Get a free estimate

Tell us about your seawall repair project. We call you back to book a time on site.

Call (854) 877-4915