Drying floors and walls after a leak under the slab; a licensed plumber finds and repairs the pipe.
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Slab leak water damage in Port St. Lucie is water from a supply or drain line under the concrete floor that rises into flooring, baseboards and walls. A crew finds the wet areas, extracts and dries them, while a licensed plumber locates and repairs the pipe. Port St. Lucie Water Damage Restoration answers phones 24/7, and you approve the emergency-stage price first.
Many homes in Port St. Lucie are built on a concrete slab with no basement or crawl space. Some have water supply or drain lines buried in or just under that slab, which means a leak can run for weeks without a puddle on the surface. It shows up as a high water bill, a floor that feels warm or damp, a faint sound of running water when everything is off, or tile that lifts at a grout line.
Water under a slab does not stay put. It follows the path of least resistance, which can be up through a crack or control joint, along the underside of the slab to a wall base, or into the soil beneath the house. Once it reaches a wall, block, drywall and baseboards pull it upward by capillary action, and carpet or laminate over the slab holds it against the floor.
This page covers the water-damage side: finding where the moisture has gone, drying floors, baseboards and the base of walls, and deciding what has to come out. The leak itself belongs to a licensed plumber, and a plumber or leak detection company pinpoints it. For the general approach see water damage restoration and structural drying.
Do not drill, saw or break into a slab to chase a leak, because you may hit another line or an electrical conduit. If a floor feels hot to the touch or a wet area is near an outlet or appliance, stay off it and call.
Turn everything off and watch the meter. If it moves, a leak is likely and the main valve can be closed while you wait for a plumber. A plumber or leak detection company then pinpoints it.
Meters and a thermal imaging camera trace dampness across floors and the base of walls, including rooms away from the leak. The crew photographs and records readings so the starting point is on record.
Carpet, pad and some laminate or engineered flooring that has sat on a wet slab usually come out so the slab can dry. Tile may be saved if the moisture can be pulled out through the grout or an opening.
Air movers and dehumidifiers dry the surface, and the crew may open baseboards or cut the bottom of drywall so the wall cavity can breathe. Concrete releases moisture slowly, so drying a slab can take longer than drying a wall.
Equipment is removed when readings say the structure is dry and the leak has been repaired. If the leak is not fixed, the slab will keep re-wetting, so the crew and plumber work in a sensible order.
The cleanup cost depends on how much floor and wall is wet and how many days of drying it needs. The figures below are typical estimates from published cost guides, not a quote. Plumbing, leak detection and slab repair are priced by the trades that do them.
| Job | Typical range | What it includes |
|---|---|---|
| Clean water cleanup, per sq ft | $3-$4 | Category 1 supply leak |
| Gray water cleanup, per sq ft | $4-$6.50 | Drain line leak or aged water |
| Structural drying, 2-3 room job | $2,000-$5,000 | Class 2; days of equipment and labor |
| Commercial dehumidifier (LGR), per unit per day | $75-$150 | Slabs dry slowly, so run time adds up |
| Drywall hang and finish, per sq ft | $1.50-$6.00 | If wall bottoms are cut out; paint extra |
Estimates for St. Lucie County in 2026. The crew explains the emergency-stage price first and you approve it before work starts. Flooring replacement is quoted after drying.
A rising water bill, a water meter that moves with everything off, warm or damp floor spots, lifting flooring and the sound of running water are the usual signs. None proves a slab leak alone. A plumber confirms it with a pressure test or listening equipment, and a crew measures the moisture it has caused.
A simple first check is to turn off every fixture and appliance, then read the meter and look at it again after a while. If the dial or low-flow indicator moves, water is going somewhere. The leak could be a running toilet, an irrigation line or a pipe outside the house, so it is a reason to call a plumber rather than a diagnosis.
A moisture meter on the floor can show a wet area, and a thermal camera can show a cool or warm pattern, but neither tells you the cause. That is why restoration and plumbing work together.
It depends on your policy and on how the leak is described. Homeowners policies often cover sudden and accidental water damage and usually exclude damage from long-term leaks, and slab and foundation damage can be treated differently from interior water damage. Ask your insurer before work starts and keep your photos and readings.
Policies word this differently, and some limit or exclude the cost of reaching the pipe, such as breaking out the slab. Others cover the resulting interior water damage while excluding the pipe itself. Only your insurer or agent can tell you which applies to your policy.
The crew can document the damage for your claim, including photos and readings. It does not decide coverage and cannot promise an outcome.
Yes. Carpet, pad, laminate and the bottom of drywall that stay damp over a wet slab can grow mold, especially in warm, humid air. The EPA advises drying within 24 to 48 hours, but a slab leak often runs unnoticed for much longer, so a musty smell or stained baseboards are worth checking.
Because the leak may have run for weeks, materials can be damp before anyone sees a stain. Pulling a small section of baseboard or carpet edge to look is often how it is found.
If mold growth is found, Florida's licensing rules apply to areas above about 10 square feet, and mold assessors and remediators hold separate licences. See mold inspection and mold remediation.
A plumber may reach the pipe by breaking into the slab, rerouting the line through the walls or attic, or replacing the line. Which option makes sense is the plumber's decision. A restoration crew dries around that work, and tearing out and rebuilding walls and floors is generally treated as construction work in Florida.
Ask for the options in writing, including any permit the work needs. The City of Port St. Lucie Building Department handles permits inside the city, while unincorporated St. Lucie County and Martin County use their own offices.
If the plan is to break the slab, tell the crew so drying is scheduled around it. Dry out the floor again after the repair, because the break-out itself adds water and dust.
A pressurized line leaking under the slab keeps adding water as long as the supply is on, so the meter keeps moving and the floor stays wet. A hot-water line may leave a warm patch. The plumber can repair, reroute the line or replace it.
A cracked or separated drain line under the slab leaks only when water is run down it. The water is gray or contaminated and may smell. A line that leaks wastewater beneath the home is a sanitation problem as well as a moisture one.
Not every wet slab is a pipe leak. After heavy rain, ground water or poor yard drainage can push moisture up through cracks and joints. A crew can read the moisture, and a plumber can test whether the pipes are the cause.
Single-story block-and-stucco houses on slab-on-grade foundations are the common pattern in Port St. Lucie, from the General Development lots platted from 1958 on to the newer St. Lucie West and Tradition neighborhoods. With no basement, water from a slab leak has nowhere to go but into the house or the soil.
The ground here is flat and sandy, and a high water table and sandy soil are general conditions on this coast. That makes it harder to tell a pipe leak from groundwater pushing up after heavy rain, so a plumber's pressure test and a crew's moisture mapping together are a sound way to find out.
About 17,380 homes in the city and service area remain on septic, so a wet floor with a sewage smell can mean a drain or septic problem and not a supply line. The crew can clean and dry the inside of the house, but the tank and drain field are outside its scope.
Call any hour and explain what is going on. You get a clear price before any work starts.
Not sure if you're covered? Check your ZIP code.
Water removal, structural drying and cleanup for Port St. Lucie homes and businesses, from storm rain to slab leaks and A/C overflows.
Cleanup and drying after a burst or failed supply line; the pipe itself is repaired by a licensed plumber.
How walls, slabs and subfloors are dried with dehumidifiers and air movers, and why readings, not a calendar, say when it is done.
When a septic system backs up into the house, the crew cleans and dries the inside. A septic contractor handles the tank and field.
No. A plumber or leak detection company finds and repairs the pipe. The crew measures moisture, extracts water, removes wet materials and dries the structure.
Concrete releases moisture slowly, so drying can take several days or longer depending on how wet it is and the humidity. The crew re-checks readings until the floor and walls reach their dry numbers, and no set time can be promised.
Carpet and pad usually come out, and some laminate or engineered flooring does too. Tile and some hard flooring can often be dried in place. The crew explains which materials can be saved after reading the moisture.
A leak under the slab, in the yard or at a toilet can raise the bill without a visible puddle. Turn everything off and check the meter, and if it moves call a plumber. A restoration crew helps once water has reached the house.
No. Groundwater, poor drainage or a roof or window leak can wet a slab too. A plumber can test the lines and a crew can map where the moisture is coming from.
Usually yes if the water has not touched a sewage line and the power is safe. Equipment is loud and runs day and night. If flooring is being removed, dust and noise are the main reasons people stay elsewhere.