Seawall Repair & Marine Construction in Fort Lauderdale

Seawall repair, dock construction, and boat lift installation across Fort Lauderdale's 165 miles of canals, from Las Olas Isles to the New River.

Fort Lauderdale

165 Miles of Canals. We've Worked Most of Them.


Fort Lauderdale has more navigable canals than Venice, Italy. That means more seawalls, more docks, and more boat lifts per square mile than almost anywhere else in the country, and more opportunities for things to go wrong when the contractor doesn't know what they're doing.

South Florida Seawall is based in Boca Raton, minutes from Fort Lauderdale, and we work on waterfront properties throughout the city year-round. We know the difference between conditions on a Tarpon River finger canal and an exposed Intracoastal lot in Harbor Beach. We know what the City of Fort Lauderdale requires for permits and what Broward County adds on top. We don't have a learning curve on your project.

Every project starts with a free on-site assessment. No bids over the phone, no guesswork about water depth or soil conditions. We look at your specific property before we quote a number.

The waterways themselves dictate a lot of what we recommend. A wall on the New River deals with commercial traffic and constant wake. A Las Olas finger canal holds water that barely flushes, so corrosion runs hotter there. An Intracoastal-facing lot in Harbor Beach takes open-water energy that a sheltered canal never sees. Two walls a mile apart can need completely different repairs, and we scope them that way.

165+Miles of navigable canals in Fort Lauderdale
30K+Registered boats in Broward County
FreeOn-site inspection for every project
LicensedMarine contractor, fully insured
What We Do in Fort Lauderdale

Services for Fort Lauderdale Waterfront Properties


What Fails Here

Common Seawall Problems in Fort Lauderdale


Fort Lauderdale's canal density means most walls share the same enemies: salt, tide, wake, and age. These are the failures we find most often.

Cap spalling and rebar corrosion

Fort Lauderdale's 165+ miles of canals hold mostly older concrete walls, and salt air plus tidal splash attacks the cap first. Once the concrete cover cracks and chlorides reach the rebar, spalling accelerates fast and the cap starts dropping chunks into the water.

Tie-back failure on aging walls

Many Las Olas, Rio Vista, and Coral Ridge seawalls were built in the 1960s and 70s with tie-back rods and deadmen that have been corroding in saturated soil for decades. When they let go, the wall leans toward the water, slowly at first, then all at once after a storm.

Voids and washout behind the wall

Weep holes clog, joints separate, and every tidal cycle pulls a little more soil out through the wall. On finger canals that don't flush well, the first sign is often a depression in the lawn or a cracked paver deck ten feet behind the wall.

Panel cracking and joint separation

Daily tidal fluctuation plus constant boat wake on the New River and Intracoastal works on panel joints year-round. Cracks that start hairline widen into soil loss channels, and a single displaced panel compromises the sections next to it.

Sub-code elevation and king tide overtopping

Fort Lauderdale's tidal flooding ordinance reflects what residents already see: king tides pushing over low walls onto docks, yards, and streets in Rio Vista, Las Olas, and the isles. Walls built to decades-old elevations increasingly can't hold back October tides.

Inspections

Seawall Inspection in Fort Lauderdale


A general home inspection doesn't cover what's below the waterline. On Fort Lauderdale waterfront, where a failing wall can turn into a six-figure problem, that's a gap buyers can't afford. Our seawall inspections document panel, cap, tie-back, and soil conditions with photos and a written report you can use in negotiations. For properties with docks and lifts, our broader marine inspections cover the whole waterfront in one visit.

We also do post-storm assessments. After a hurricane or a bad king tide season, an inspection tells you whether you're looking at a void that needs filling or a wall that needs replacing. Either answer is cheaper than finding out when the lawn drops.

Inspections here also come with a paperwork benefit: the written report documents your wall's condition and elevation, which insurers, buyers, and the city's tidal-flooding review all ask about at different times. Having it on file before you need it is the cheap version of being prepared.

How We Work

Our Fort Lauderdale Seawall Repair Process


01

Inspect

We walk the wall, probe behind it for voids, check cap, panels, tie-backs, and elevation, and photograph everything. You get a written condition report, not a verbal guess.

02

Diagnose & quote

We tell you what's failing, what caused it, and whether repair or replacement makes more sense, with an itemized quote for each option where both are viable.

03

Permit

We file with City of Fort Lauderdale Development Services, plus Broward County Environmental Protection & Growth Management for tidal work. FDEP or Army Corps review applies on navigable waters like the New River and Intracoastal.

04

Repair

Our crew executes the approved scope: injection, cap work, panel or tie-back replacement, backfill, and grading. Most residential repairs run one to five days on site.

05

Walkthrough & warranty

Final inspection with you on site, documentation of the completed work, warranty paperwork, and straight answers on what to watch going forward.

Where We Work

Fort Lauderdale Neighborhoods & Waterways We Serve


We work throughout Fort Lauderdale's waterfront neighborhoods. If your property touches water, we can help.

From the New River forks to the Intracoastal, each waterway sets its own exposure profile and its own permitting track. The list below covers the communities and waters we work on most.

Neighborhoods

  • Las Olas Isles
  • Isle of Venice
  • Hendricks Isle
  • Nurmi Isles
  • Seven Isles
  • Sunrise Key
  • Bay Colony
  • Rio Vista
  • Harbor Beach
  • Riverside Park
  • Tarpon River
  • Coral Ridge
  • Coral Ridge Country Club
  • Lauderdale Harbours
  • Lauderdale Isles
  • Riverland
  • Sailboat Bend
  • Victoria Park
  • Poinsettia Heights
  • Middle River Terrace
  • Bermuda Riviera
  • Coral Shores
  • Idlewyld
  • Edgewood
  • Landings
  • Harbordale

Waterways

  • New River (North & South Fork)
  • Middle River
  • Intracoastal Waterway
  • Tarpon River
  • Himmarshee Canal
  • Lake Sylvia
  • Sunrise Bay
  • Port Everglades approach
Honest Advice

Repair or Replace? What We Tell Fort Lauderdale Homeowners


Most Fort Lauderdale walls we inspect don't need replacing. Cracks, spalling caps, isolated voids, and single-panel damage are all repairable, and our seawall repair work covers exactly that. Replacement makes sense when the wall is past 40 years with systemic corrosion, when repairs would cost more than half of a new wall, or when the wall can't meet current elevation requirements even after a cap raise.

When replacement is the answer, our new construction work builds vinyl or concrete walls to current NAVD88 standards with new tie-backs and a proper cap. For what each path costs, the seawall cost guide and seawall repair page break down real numbers.

One Fort Lauderdale-specific note: because the city's tidal-flooding ordinance treats substantial repairs as a trigger for current elevation standards, a wall that's borderline can tip into rebuild territory once the scope is permitted. We check that before quoting so the option we recommend is the one the city will actually approve.

Fort Lauderdale FAQ

Common Questions from Fort Lauderdale Property Owners


Fort Lauderdale's network of 165+ miles of canals creates a unique tidal environment. Daily tidal fluctuation, boat wake from heavy Intracoastal and New River traffic, and the aggressive saltwater chemistry in finger canals that don't flush well all accelerate deterioration. Concrete seawalls in particular suffer from rebar corrosion faster here than in less active waterways. Properties on the New River corridor and Las Olas Isles tend to see the most accelerated wear.
Yes for structural work. The City of Fort Lauderdale requires permits for seawall repair, cap replacement, tie-back work, and any structural modification, filed through Development Services. Tidal work adds Broward County Environmental Protection & Growth Management review, and projects on the New River or Intracoastal may also require Florida DEP and Army Corps review. We handle all permit applications and inspections as part of every project, so you don't deal with a single city office.
For properties with direct Intracoastal exposure or significant boat wake, composite decking on concrete or fiberglass pilings is the most durable choice. Aluminum frame docks are a close second and offer lower long-term maintenance. Pressure-treated wood works fine on sheltered finger canals but needs regular treatment and typically lasts 15 to 20 years before major repairs. We build all three and recommend what actually makes sense for your specific location.
We're based in Boca Raton, about 8 miles north of downtown Fort Lauderdale. We work throughout the city including Riverside Park, Rio Vista, Las Olas Isles, Harbor Beach, Tarpon River, and all of the finger canal neighborhoods. Our crews are on Fort Lauderdale waterways regularly, so no travel surcharges apply.
It depends on the wall's condition. If panels and tie-backs are structurally sound, a cap raise or extension can bring the top elevation up toward current standards without replacing the wall. If the wall is also leaning or the tie-backs are gone, raising a failing wall is wasted money. Fort Lauderdale's tidal flooding ordinance affects what elevation you can build to, so the inspection has to answer both questions: is the wall worth keeping, and what does the code allow. We assess both in one visit.
Usually, yes. Most Fort Lauderdale docks attach to or sit just behind the seawall cap, and we routinely work around them. Decking sections come up temporarily for access, lift cradles stay in place, and we coordinate any piling work so the dock structure stays supported. If the dock itself shares a footing with the wall, we engineer the repair so neither structure is compromised. When dock work is needed anyway, doing it with the seawall saves a second mobilization.
Active repair work on a residential wall usually runs one to five days depending on scope: crack injection and localized void filling on the short end, panel and tie-back replacement on the longer end. The permit phase adds weeks, not days, so we file immediately after you approve the scope. Emergency stabilization, like a leaning wall after a storm, gets prioritized and we'll tell you honestly what can be stabilized now versus what needs the full permitted repair.
Some do. Communities like Bay Colony, Harbor Beach, and the isles associations often require architectural review for work visible from the water, on top of city permits. We prepare the drawings and documentation your HOA asks for and don't mobilize until both approvals are in hand. If you're not sure whether your association reviews seawall work, we can usually tell you from experience on neighboring properties.

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