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Seawall Repair Miami is a licensed marine contractor serving waterfront property owners across Miami and Miami-Dade County. Seawalls and bulkheads are our focus, along with the docks and boat lifts that go with them. We repair cracked and failing seawalls, replace walls that are past saving, fix the erosion and voids that open up behind them, and build and repair docks and boat lifts. Whether your cap is cracking, soil is washing into the canal, or your wall is starting to lean, we inspect it above and below the waterline, give you a firm price in writing, and fix the real problem.
A seawall in Miami works harder than almost any structure on your property. Most canal homes here sit on dredge-and-fill land, with brackish, salt-laden water moving against the wall on every tide. That salt drives chloride into the concrete and rusts the rebar inside, which expands and cracks the wall from within. Add decades of age on many of the original walls, the storm surge that comes with every hurricane season, and the soft fill behind the panels, and small cracks turn into failures fast. We build and repair every wall for those conditions, because a seawall is the one thing standing between the canal and your backyard.
If your seawall shows any of these, it is worth a free underwater inspection before it gets worse.
Cracks in the concrete cap are the first visible sign of trouble. Once a crack opens, salt water reaches the rebar inside, and as the steel rusts it expands and splits the cap further from the inside out. What looks like a hairline today spreads quickly in Miami's salt air and humidity.
If the ground behind your seawall is dipping, or a section of yard, patio, or pool deck has started to sink, soil is washing out through the wall into the canal. The dredge-fill behind Miami walls drains fast once a gap opens, and the voids stay hidden until the surface drops.
When the cap pulls away from the panels below it, the wall loses the connection that holds it together and backfill escapes into the water. A gap you can slip a coin into can release cubic feet of soil over a single tide cycle, so separation is never just cosmetic.
Rust stains bleeding down the face of the wall, or chunks of concrete flaking off to expose the steel, mean chloride has reached the rebar. Salt water corrosion is the leading cause of seawall failure in Miami, and once it starts the only fix is to treat the steel and restore the concrete before it spreads.
A wall tilting toward the canal or bulging outward has lost the support of its tiebacks, the buried anchors that hold it upright. A small lean at the top usually means several inches of movement below the waterline, and a leaning wall is one storm away from failing.
After a tropical storm or hurricane, look for new cracks, shifted panels, scour at the base of the wall, and soil loss behind it. Surge and wave action overload a wall in hours, and much of the damage is below the waterline where you cannot see it. Much of it is also covered by insurance.
Seawall and bulkhead repair, replacement, docks, boat lifts, and free underwater inspection, the full range for waterfront property across Miami-Dade County.
Most seawall problems can be repaired without tearing the wall out, and catching them early is what keeps a small fix from becoming a full replacement. We repair cracked and spalling caps, treat and restore corroded rebar, seal cap and panel separation, and fill the voids and sinkholes that open up behind a failing wall. For erosion and soil loss, we inject expanding polyurethane foam through small ports in the cap, which fills the voids and stabilizes the ground without excavating your yard.
When a wall has started to lean, we restore its support with new helical tiebacks and anchors driven into stable soil behind it, logged to the engineered load. We track every problem back to its real cause, above and below the waterline, so the repair holds instead of masking the symptom. You get a written estimate with the method and the price before we start, and an honest answer on whether a repair is the right call or whether replacement is the better value.
When a wall is perforated, badly rotated, or simply past the end of its service life, repair stops making sense and replacement is the right investment. Many of Miami's original canal seawalls are now decades old, built before current standards, and no amount of patching will add the years a new wall will. We remove the failed wall and build a new one engineered for your canal, your soil, and current Miami-Dade code.
You choose the system that fits the property and the budget, vinyl sheet pile, concrete panels, or composite, each finished with a new cap and proper tiebacks. We handle the permitting with the city, the county, and the state, and we document the work for your records and your insurance. A new seawall protects your land, raises your property value, and is built to stand up to the next storm season.
Bulkheads and seawalls do the same job, holding back the soil at the water's edge, and we repair and replace both. A bulkhead in a canal or along the bay faces the same salt, tide, and surge that works on any waterfront wall, and it fails the same ways: a cracking cap, separating panels, soil washing out behind it, and anchors that corrode and let the wall lean.
We repair bulkhead caps and panels, re-anchor walls that have shifted, and replace timber, concrete, and vinyl bulkheads that are past saving. Whether you call it a seawall or a bulkhead, we inspect the full structure above and below the waterline, give you a firm price, and build the repair or the replacement to hold.
Your dock and your seawall are part of the same waterfront structure, and we build and repair both. We replace rotted or storm-damaged decking and stringers, re-set and reinforce pilings, repair or replace the hardware, and build new docks sized for your canal and how you use the water. Composite and pressure-treated systems, fixed or floating, are all built to Miami-Dade code.
Pilings are where most dock problems start, so we inspect them to the mudline and reinforce or replace what has corroded or rotted. Building the dock and the seawall together means the two tie in correctly and the permitting is handled once. Every dock is built to take the sun, salt, and storms that come with a Miami waterfront.
A boat lift protects your investment from the salt, marine growth, and storms that damage a boat left in the water, and we install and repair them alongside your dock and seawall. We install four-piling and elevator-style lifts sized to your boat's weight and your canal, with galvanized and aluminum hardware rated for brackish, salt-heavy water.
For an existing lift, we repair and replace motors, cables, pulleys, bunks, and corroded hardware, and we re-set pilings that have shifted. Because we are already working your seawall and dock, we handle the lift as part of the same project, so everything on your waterfront is inspected, permitted, and built to last.
The most important part of a seawall is the part you cannot see, and most wall failures start below the waterline where scour, voids, and tieback problems hide. Our inspection is free, and it covers the whole structure above and below the water: the cap, the panels, the joints, the base of the wall, the tiebacks, and the soil behind it.
You get a straight report on the real condition of your wall, with the problems we found and what it will take to fix them, and no pressure. Whether you are buying or selling a waterfront home, have been through a storm, or just want to know how much life your wall has left, the inspection tells you where you stand. Often the honest answer is that your wall is sound, and knowing that is worth the visit.
A quick primer on your material options and when a repair beats a replacement.
Miami seawalls are built in a few materials, and the right one depends on your canal and your budget. Poured and precast concrete is the traditional Miami wall, strong and heavy but prone to rebar corrosion and spalling as it ages. Vinyl sheet pile is the modern standard for replacements: it will not rust or rot, installs faster, and carries a long warranty, which is why most new residential walls here are vinyl with a concrete cap. Composite and aluminum walls are used where extra strength or a specific look is needed. We install all of them and will tell you honestly which fits your property.
A repair is the right call when the wall is structurally sound and the problem is contained: a cracking cap, soil loss behind the wall, a lean from failed tiebacks, or storm damage to one section. Those are fixed with foam injection, new anchors, and cap restoration for a fraction of replacement cost. Replacement makes sense when the panels are perforated, the wall has rotated badly, or it has simply reached the end of its life. We give you both numbers and an honest recommendation, so you are not paying to replace a wall that can be saved, or patching one that needs to come out.
Not every failing seawall needs to be torn out. Most of what goes wrong with a Miami wall, voids behind it, a leaning cap, corroded rebar, a cracked or separated panel, can be fixed in place with the right method, at a fraction of the cost of replacement. Here is how we repair a wall instead of replacing it.
When soil has washed out behind the wall and left voids, we inject expanding polyurethane foam through dime-sized ports drilled in the cap. The foam flows into the voids, seals the leak paths, and stabilizes the ground, bringing the grade back up without digging up your yard or landscaping. It is the fastest, least invasive fix for erosion and sinkholes behind a seawall.
A wall leaning toward the canal has lost its lateral support. We restore it with helical tiebacks, galvanized anchors screwed deep into stable soil behind the wall and connected back to the cap, each torqued and logged to an engineered load. The anchors pull the wall back and hold it upright, so you keep the wall you have instead of replacing it.
Where the cap has cracked and the rebar has rusted, we remove the failed concrete, treat or replace the corroded steel, and rebuild the cap with marine-grade materials and corrosion inhibitors. Done right, it stops the chloride damage from spreading and restores the structural top of the wall.
When one section of panel has failed but the rest of the wall is sound, we replace just that section with new vinyl or concrete sheet pile tied into the existing wall. It is a targeted repair that fixes the weak point without the cost and disruption of a full replacement.
We start every job with a free underwater inspection so we know exactly what the wall needs, then we use the least invasive method that solves the real problem. If a repair will genuinely hold, that is what we recommend. If the wall is truly past saving, we will tell you that too, and give you the replacement number.
From your first call to the final walkthrough, here is how we work.
Call or send the quick form with what is going on: a crack, a sinkhole behind the wall, a lean, storm damage, or a dock or lift that needs work. We get the details and set a time to come out and inspect the wall.
We inspect the whole structure above and below the waterline, the cap, panels, joints, tiebacks, the base of the wall, and the soil behind it, so we find the real problem instead of guessing. You get an honest read on the wall's condition.
You get a clear, written estimate before any work begins, with the method and the price laid out, repair or replace, so you can decide with no surprises and no pressure.
We do the work: inject the voids, set new anchors, restore the cap, replace the failed panels, or build the new wall, dock, or lift, with the right marine materials installed to Miami-Dade code. We handle the permits and protect your property.
When the work is done, we clean up, walk the finished wall with you, and hand over the warranty paperwork and the documentation you need for your records or an insurance claim.
Licensed marine contractor, honest on price, and ready for storm and insurance work.
Seawall and marine work is a licensed specialty, not general contracting. We are a licensed, insured Florida marine contractor, and we build every repair and wall to current Miami-Dade and state code, so the work holds and the permits clear.
Most seawall failures start below the waterline, so we inspect there for free before we quote anything. You get the real condition of your wall, an honest recommendation, and a written estimate, with no pressure to buy work you do not need.
We handle the permitting with the City of Miami, Miami-Dade County, and the state, and we prepare the documentation your insurance adjuster needs for storm damage. You sign once, and we manage the rest from inspection to final approval.
We work the canals and the bay across Miami-Dade every week and know how salt, tide, and surge fail a wall here. We build and repair for those exact conditions, with galvanized and marine-grade materials rated for brackish, salt-heavy water.
Honest ranges to plan around. Seawall work is priced by the linear foot and by the method your wall needs, and your exact price comes after a free inspection.
Foam injection for voids, and cap and spall repair, priced per linear foot by method and severity.
Helical tiebacks to pull back a leaning wall; most residential walls need one anchor every several feet.
A full new wall, by material, cap design, height, and canal access.
What moves the price: the length and height of the wall, the material, how much soil loss and void there is behind it, the number of tiebacks needed, access from the water or the yard, and the city, county, and state permits.
These are planning ranges from current cost data, not a quote. Your firm price comes after a free on-site and underwater inspection, and the estimate is always free.
Straight answers from our seawall and marine jobs across Miami-Dade County.
It depends on the length of the wall and the method it needs. As a planning range, foam injection and cap repairs run about $35 to $180 per linear foot, helical tiebacks to fix a leaning wall run $1,800 to $3,500 per anchor, and a full seawall replacement runs $850 to $2,200 or more per linear foot. Your exact price comes after a free inspection, and the estimate is always free.
The common signs are cracks or spalling in the cap, rust stains or exposed rebar on the face, soil or pavement sinking behind the wall, a gap opening between the cap and the panels, and a wall leaning toward the canal. Any one of these is worth a free underwater inspection, because the worst damage is usually below the waterline where you cannot see it.
Yes. A bulkhead and a seawall do the same job and fail the same ways, and we repair and replace both. We fix caps and panels, re-anchor walls that have shifted, and replace timber, concrete, and vinyl bulkheads that are past saving.
Yes. We handle storm and surge damage throughout hurricane season and work alongside your insurance claim. We document the damage above and below the waterline, provide the measured report and photos your adjuster needs, and complete the approved repair or replacement to code.
Repair makes sense when the wall is structurally sound and the problem is contained, like a cracking cap, soil loss behind the wall, or a lean from failed tiebacks. Replacement is the better value when the panels are perforated, the wall has rotated badly, or it has reached the end of its life. We inspect it, give you both numbers, and make an honest recommendation.
Yes, our seawall inspections are free and cover the whole structure above and below the waterline. Whether you are buying or selling a waterfront home, have been through a storm, or just want to know how much life your wall has left, you get a straight report on its real condition with no pressure.
Yes. Your dock, boat lift, and seawall are part of the same waterfront structure, and we build and repair all three. We re-set and reinforce pilings, replace decking and hardware, install and service boat lifts, and build new docks sized for your canal, all permitted and built to Miami-Dade code.
From Biscayne Bay and the Miami River to the canal neighborhoods across Miami-Dade County.