Most seawall failures are diagnosed years too late for the cheap fix — not because the signs weren’t there, but because nobody who knew what to look for ever looked. The wall’s most important surfaces are underwater, its most dangerous failure mode (soil loss) happens out of sight behind it, and the visible symptoms — a hairline crack, a slightly soft patch of lawn — are easy to dismiss until they aren’t.
A professional inspection replaces guessing with knowing. Here’s what ours covers and when to get one.
What We Inspect
Above the waterline
- The cap — cracking patterns, spalling, rust staining, and elevation relative to current flood standards
- Panel faces and joints — separation, displacement, crack mapping, and evidence of soil passing through joints
- Tieback indications — wall alignment (leaning/bowing measured, not eyeballed), corrosion staining at tieback penetrations
- Drainage — weep hole condition and function; pooling patterns behind the wall
Below the waterline
- Toe condition — scour at the wall’s base, the quiet cause of most wall rotation on wake-heavy water
- Submerged panel condition — cracks and spalls below the tide line that surface inspections can’t see
- Sediment tells — sand deltas on the water side of joints, the fingerprint of active soil loss from behind the wall
Behind the wall
- Void probing — systematic probing of the backfill zone to find cavities before they become sinkholes
- Settlement mapping — grade changes, pavers dropping, pool deck cracks near the wall line
When to Get an Inspection
Buying or selling waterfront property. This is the big one. In Miami-Dade waterfront transactions, the seawall is routinely the most expensive single component nobody looks at. Standard home inspections stop at the waterline — meaning the buyer takes on a potentially six-figure structure sight-unseen. A pre-purchase seawall inspection either clears the deal or becomes leverage: repair credits, price adjustments, or seller-completed repairs before close. Sellers use pre-listing inspections the same way, to take the wall off the table as a surprise.
After a storm. Hurricanes and tropical storms load seawalls in ways ordinary tides never do — surge pushes water behind walls, then drains it out fast, dragging soil with it. Damage is often invisible for months until settlement appears. Post-storm inspection also creates the documentation trail insurance claims depend on; see our emergency repair service if the damage is active.
After king tide season. September through November, the year’s highest tides work every weakness in every wall in the county. An inspection after the season catches what the tides opened up. More on this in King Tides & Sea Level Rise.
Every 2–3 years, routinely. Seawall problems compound: a $500 joint reseal ignored becomes a $15,000 void injection, becomes an $80,000 replacement panel. Routine inspection is how a wall reaches — and passes — its design life. Walls over 30 years old deserve annual checks; see how long seawalls last for lifespan context.
Inspections and the permit process
Inspection findings feed directly into permitting when repairs are needed: cap and tieback repairs with structurally approved plans can qualify for Miami-Dade's Expedited Administrative Authorization (~10-day processing) rather than full Class I review — but only when the application is built on documented conditions. Our reports are written with the permit path in mind, so the inspection you pay for once does double duty. Details in the permit guide.
What You Get
Every formal inspection produces a written report:
- Condition summary — plain-English state of the wall, section by section
- Findings with photos — every defect documented, located, and rated for severity
- Cause analysis — not just what is wrong but why, because the why determines the fix
- Prioritized recommendations — what needs action now, what to monitor, what can wait
- Budget ranges — realistic Miami-Dade numbers for each recommended action
The report is yours: use it to plan, negotiate, file a claim, or get competing bids. (We think our repair work wins on merit, and the report makes comparing bids honest.)
The Inspection That Pays for Itself
We’ve inspected walls where the owner feared the worst and the fix was a day of joint sealing. We’ve inspected “fine-looking” walls hiding voids the size of kiddie pools behind them. The pattern in both directions is the same: what the wall looks like from the patio has almost no relationship to its actual condition. The only expensive inspection is the one you didn’t get.
Frequently Asked Questions
How much does a seawall inspection cost in Miami?
Basic visual inspections tied to a repair consultation are free. Formal documented inspections — with below-waterline assessment, void probing, and a written report suitable for real estate transactions or insurance — are quoted based on wall length and access. Either way, you'll know the price before anyone gets wet.
How often should a seawall be inspected?
Every 2–3 years as routine maintenance, plus after any major storm and after king tide season (roughly September through November in Miami). Walls over 30 years old, or walls showing any warning signs, should be looked at annually.
Should I get a seawall inspection before buying a waterfront home?
Absolutely — it's the single highest-leverage inspection in a waterfront purchase. A failing seawall is routinely a six-figure liability that a standard home inspection will not catch, because home inspectors don't go below the waterline and can't recognize early-stage soil loss. An inspection report also gives you negotiating power on price or repair credits.
What does the inspection report include?
Documented condition of the cap, panels, joints, tiebacks, and drainage; below-waterline findings including toe scour and panel condition; results of void probing behind the wall; photos; a severity assessment for each finding; and prioritized recommendations with budget ranges. It's written to be usable — by you, a buyer, a seller, or an insurance adjuster.
Can you inspect the parts of the seawall underwater?
Yes — the below-waterline portion is where the most consequential failures start: toe scour, panel cracks below the tide line, and soil escaping at depth. An inspection that stops at the waterline is half an inspection.