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Leak detection in South Florida, located before a wall gets opened

Acoustic listening, a thermal camera and pressure testing narrow a hidden leak to one point, so the cut lands where the pipe actually failed, not where the water surfaced.

Why isn’t the wet spot where the leak actually is?

Once a supply line loses its seal under a slab, the water rarely stays where it let go. South Florida’s water table sits only a few feet down, and the fill under most houses here is loose enough that escaping water spreads outward long before it ever rises to the surface. It shows up wherever the path happens to be easiest: a grout line, a hairline crack, a low corner of a room, almost never directly above the actual failure.

None of what shows on the surface, a wet patch, a tile warmer than the rest, water you can just barely hear, tells you where to cut. Treat any of it as the location and a small repair grows into a large one fast.

Detection leans on three instruments working together: acoustic gear that listens for the escape itself, a thermal camera that reads the temperature difference a hot-water leak leaves behind, and a pressure test that isolates which line lost pressure in the first place.

What you’re noticing

Signs that water is moving under the floor

None of these pinpoints the break alone. All are worth acting on.

  • A water bill that jumped

    No change in household use, yet the bill climbed; a slab leak runs nonstop and never lets up overnight.

  • A warm patch on the tile

    A hot-water line leaking under the slab warms the concrete above it, usually wider than the leak and off to one side.

  • Water you can hear but not see

    Every fixture off, yet a faint running sound comes through the floor, a pressurized line, not a drain.

  • Pressure dropping at every tap

    Weaker flow everywhere, not just one fixture, means the loss sits upstream of the fixtures themselves.

  • Dampness along a baseboard or seam

    Water rises wherever it first can. A damp baseboard means the water traveled, not where it started.

How the visit unfolds

From a damp floor to a marked spot

Four steps, always in that order, each one narrows the next.

  1. 01

    Isolate which system is losing pressure

    A pressure test finds whether the loss is on a supply line or a drain. Searching the wrong system is the costliest mistake here.

  2. 02

    Listen, then scan

    Acoustic equipment picks up the escape; a thermal camera picks up the temperature gradient. Together they narrow the run to a small area.

  3. 03

    Mark the spot

    A mark goes on the floor showing where the break sits, made before any tool touches the slab, so the reasoning stays visible to you.

  4. 04

    Open, repair, then document it

    One opening over the marked spot, then photographs and an itemized invoice in the form an adjuster will ask for.

A Boca Raton Emergency Plumbing SFL plumber reaching under a kitchen sink at night, work lamp lit, hand on the shut-off valve

Why detection is harder on this coast

Slab, salt air, and a water table that shifts

Finding a hidden leak takes more here than it does further inland.

Nothing to look at directly

No crawlspace, nothing below grade to check. Every supply and drain line runs inside or beneath concrete, so whatever you notice first is a symptom, never the pipe.

A water table close to the surface

Escaping water spreads sideways through the fill instead of pooling, which is why the wet spot rarely sits above the break.

Storm season shifts the ground itself

Heavy rain lifts the water table and pushes upward against foundations, part of why leaks surface more in the wet months.

Salt air attacks copper from outside

Near the coast, copper supply lines corrode from the outside too, so a pinhole can appear in a line that isn’t old.

Hot and cold leaks behave differently

A thermal camera finds a hot-water leak fast and a cold-water leak barely at all, so the failed line decides the tool.

Recent jobs

Real jobs, photographed on site

Taken by the crew on the day of the job, not pulled from stock.

  • A corroded toilet flange ring removed and lying on the tile floor beside the open drain, with a drill and the old bolts around it
    Failed flange out, drain opened up
  • A toilet reset on beige tile beside a wood vanity, tank lid on and the work area wiped clean
    Toilet reset after the flange repair
  • A hand-dug opening along an exterior wall exposing a new white PVC cleanout fitting in the soil
    Exterior cleanout set at the wall line
  • A wall-hung tankless water heater with new copper supply lines, isolation valves and a stainless gas connector
    Tankless unit piped in copper
  • A tankless water heater glowing with its blue status light over tidy copper runs strapped to the wall
    Tankless install, powered and running
  • A tank water heater fitted into a utility closet beside the air handler, dielectric unions and shut-off visible
    Tank heater in a tight utility closet
  • A reverse-osmosis filtration unit and storage tank mounted under a kitchen sink with color-coded quarter-inch lines
    Under-sink filtration, lines dressed
  • A compact drain machine set against a wall opening with its cable entering the line
    Cable in the line at a wall cleanout
  • A hand holding a moisture meter with its scale lit while checking a baseboard for hidden water
    Reading the wall before opening it
  • A matte black single-handle faucet newly mounted on a white vessel basin
    Fixture swap, sealed and set

Reviews

What Google reviewers say

Pulled straight from the Google Business Profile, with each reviewer’s public name attached.

5.089 Google reviews

A selection of our 5-star reviews on Google.

See all reviews on Google
  • KIMBERLY P.

    Id be completely comfortable having them back for future plumbing work. Everything about this visit was straightforward and well handled.

  • Kowal I.

    He even explained which work wasn't worth spending money on yet. That's the kind of honesty that makes me want to call someone again.

  • Joshua W.

    Nothing about the job looked rushed. From the repair itself to the final testing, everything was handled carefully and professionally.

Questions

Answered before you call

Can you find a leak without breaking the floor?

Finding it, yes. Every method here reads through the slab without disturbing it. Fixing it still means opening the floor, just at one small, correctly chosen spot.

How accurate is it?

Accurate enough to justify a single opening rather than several. On a long run buried under tile or furniture, expect an area rather than an exact pinpoint, and you’ll be told which you’re getting.

Is a slab leak an emergency?

Not sudden, but constant. It won’t put water across the floor in an hour, yet it never stops running either, and a season is too long to leave it.

Could it be the pool or the irrigation instead?

Often, and it’s worth ruling out before any floor gets opened. Both run as their own pressurized systems, checked with the same equipment.

Do you repair what you find?

Often, in the same visit, when the fix is simple. When a whole section of line has given out rather than one spot, replacing that run is the honest call.

Live dispatch · 24 / 7 / 365

A hidden leak somewhere in the slab?

Someone answers any time of day or night, and the leak gets pinpointed before a single tile comes up.

No obligation. Work performed under Florida plumbing contractor license CFC1433655.

(561) 760-1677