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Slab Leak Repair in Greer, SC

Slab leak repair in Greer, SC fixes a pressurized water line that is leaking in or beneath the concrete floor of a slab-on-grade home, and the usual routes are a spot repair, a reroute or a repipe. One call at any hour starts it, and a person answers.

(864) 900-0065

Call nowA person answers. Same-day service is available.

Describe the clueWarm floor, hiss, high bill or a meter that will not sit still.
Sort hot from coldA few questions narrow the leak to one line before anyone touches the floor.
Pick the repair routeSpot repair, reroute or repipe, explained plainly for your house.

Jobs we take calls for

Pages to read beside slab leak work

A leak under the floor touches several kinds of plumbing. These pages cover the neighbors.

Leak detection

To prove where a hidden leak sits before any concrete is opened.

Leak detection details →

Repiping

For homes where many lines are failing, not just one.

Repiping details →

Water line repair

For the buried run between the meter and the house.

Water line repair details →

Burst pipe repair

For a line that has let go and is flooding.

Burst pipe repair details →

Start here

Signs of a slab leak in a Greer home

A line under concrete hides well. The clues show up in the floor, the walls, the sound of the house and the bill.

A floor that feels warm underfootA patch of tile or concrete that stays warm with the heater off can sit right above a hot line that is leaking into the slab.Warm floor A hiss or trickle in a silent houseLate at night, a faint rushing sound from the floor with every fixture closed points to pressurized water escaping.Floor hiss The meter keeps turning with everything offIf the dial moves while taps, ice maker and sprinklers are idle, water is leaving by a path you cannot see.Meter motion A heater that never seems to restA hot line leaking under the floor can keep the heater firing again and again to replace what drains away.Constant heating Damp carpet, lifting flooring or cracked groutMoisture rising through concrete swells wood, lifts vinyl edges and darkens carpet backing along a line.Floor damage Baseboards that stain or smell mustyWater wicks up the bottom of a wall from the slab edge, leaving tide lines, mildew or a sour smell.Wall wicking Pressure that sags at every tapA big leak steals flow before it reaches the fixtures, so showers and hoses weaken together.Weak flow Water pooling or flooding from the floorClose the main valve first, then call. Digging for the source can wait until the flow stops.Active flood

Reasons to call

Why slab leak repair in Greer, SC should not wait

Water under a house does not stay put. It softens the soil, rises into finishes and keeps running on your meter.

A person answersDescribe the warm spot or the sound and get a next step without filling in anything.
Open 24/7A hiss under the floor at midnight is a fair reason to call at midnight.
Same-day service is availableA leak that is running gets worked in ahead of routine jobs.
One number for the whole jobFinding the leak, repairing it and replacing lines all start from the same call.
Plain explanationsYou hear the options for your layout in everyday words, with no pressure to pick one on the spot.

Compared

One call for a slab problem compared with piecing it together

A leak under concrete needs several skills in sequence. The fewer hand-offs, the shorter the gap between noticing it and fixing it.

	UsGreer Station Plumbing	vsThe usual local shop
Availability	Open 24/7Slab leaks do not keep office hours, and a flooded room at night should not wait.	Weekdays only
Reaching someone	A person answersTell them what the floor, the meter and the heater are doing.	A form, then a callback
How soon	Same-day service is availableEarly action keeps the wet area small.	A slot that opens days later
Jobs handled	All plumbing jobs on one numberLocate, repair, reroute or repipe without switching companies.	A finder of leaks who does not repair them
Local knowledge	Greer and nearby townsSlab houses are common questions here, and so are crawl-space and basement homes next door.	One method for every foundation
Price clarity	Ask about pricing when you callThe cost section below explains what moves the work.	A number before anyone knows the layout

Typical patterns only; each company works differently.

From ring to repair

How a slab leak call unfolds

The sequence is built to keep the opening in the floor as small as possible.

Tell the story
Where the floor feels warm, what the meter does, how old the home is and which rooms are affected.
Isolate the line
Valves and pressure checks separate the hot side from the cold side and one zone of the house from another.
Mark the spot
Listening gear and thermal tools mark the leak on the floor so the work starts at the right square foot.
Choose the route
You hear the pros and cons of a spot repair, a reroute and a repipe for your layout.

Pricing

What moves the price of a slab leak fix

Two slab leaks can look alike on the surface and be very different jobs underneath. Ask about pricing when you call.

Where the line runs

A leak under an open hallway is easier to reach than one under a kitchen island or a built-in cabinet.

Floor finish on top

Tile, hardwood, carpet and bare concrete each need different care when the surface is opened and put back.

Which repair route

A small spot repair, a new overhead run and a repipe sit in different places on the scale of work.

How many leaks

One failure is a repair. Several along the same line push the conversation toward replacing that line.

Work after the pipe

Drying, flooring and trim around the opening are separate tasks that depend on how long the water ran.

Have these ready for the call

Where the floor feels warm or damp
A recent water bill compared with a usual one
The floor finish in the affected rooms
Whether the house has an attic route for new lines

Ask about pricing when you call.

Call now, any hour(864) 900-0065

How the house is built

What a slab leak is and why slab-on-grade homes have them

Slab-on-grade means the house sits on a concrete pad poured at ground level, with no crawl space and no basement under the floor.

Where are the pipes in a slab house?

In a slab-on-grade house, the drain lines are set in the ground before the concrete goes in, and the water supply lines may run in the slab, under it or overhead through the attic, depending on how the house was plumbed. When a supply line under the pad fails, that is a slab leak. The line is pressurized all day, so a small pinhole keeps pushing water into the gravel bed and soil beneath the concrete.

Upstate South Carolina has homes on slabs, crawl spaces, piers and sloped basements, so a Greer neighbor may have lines you can see from a hatch while yours are buried. That is why the first question on a call about slab leak repair in Greer, SC is simply how the house is built. Red clay soil can hold water around a buried line and can shift as it wets and dries, which can stress a joint, so a slab leak does not always leave a visible puddle.

Cross section of a slab leak

Simplified. The pressurized line sits under the pad, so water spreads below the floor first.

Why do lines under a slab start to leak?

Most slab leaks trace back to a short list of causes. Copper that sits against abrasive gravel can wear a thin spot over many years. Water chemistry, flow speed and age can pit a line from inside. A joint that was never seated well can seep. Plastic lines can fail at fittings or where they rub something sharp. Heavy loads, settling and the movement of the soil can pull on a pipe that was never meant to flex. A line that runs through concrete without a protective sleeve is more exposed to all of these.

Why a buried supply line fails

General causes. A plumber reads the actual pipe before drawing conclusions.
Cause	How it happens	What it tends to look like
Abrasion	A pipe rubs on gravel, rebar or another line as water pulses through it	One thin spot, often a pinhole
Pitting from the inside	Flow and water chemistry slowly eat a copper wall	Pinholes in several places along one run
Joint failure	A soldered or fitted connection loosens or was never tight	A seep at a fitting, sometimes a hot line
Ground movement	Soil wets, dries and shifts around a rigid pipe	A crack or separated joint near a corner or entry
Pressure spikes	A hard shut of a valve or a high-pressure supply hammers the line	A split on a weakened section

Reading the clues

Hot line or cold line: how the symptoms differ

Which line is leaking changes both the clues you notice and the way the plumber looks for it.

How can I tell if the leak is on the hot line?

A leaking hot line gives itself away with heat. You may feel a warm patch on a tile floor that stays warm even in a cool room. The water heater may run more often than usual because it keeps heating new water to replace what drains away. Hot water may take longer to reach a faucet, and the hot side of a tap may sputter. A bill that jumps along with a gas or electric bill increase is another hint, since you are paying for the water and the energy that warmed it.

If the heater is old and the symptoms line up, the plumber may check both the heater and the line, since a leak at the heater itself can look similar from the outside. The page on water heater replacement covers the unit, and the guide on how long water heaters last helps you judge its age.

Clues that point to a hot line

Warm spot on the floorStays warm with no sun and no heat vent nearby.
Heater cycles constantlyIt fires again and again though nobody is using hot water.
Slow hot water at a tapThe wait for heat grows longer over a few weeks.
Hiss near the heater side of the houseThe sound grows when you open a hot tap.

Hot-line clues. Any one of these is a reason to call.

What does a cold line leak look like?

A cold line leak is quieter and harder to feel. There is no warm patch, so you rely on other signs. Damp baseboards, musty smells, a floor that is cool and wet, mildew along a wall base or soil that is soggy beside the slab edge all point toward cold water. The meter tells the truth even when the house gives no hint. Because cold water does not leave a thermal trace, the plumber leans more on listening gear and on pressure tests than on heat tools.

Not every wet floor is a leak in the supply. A drain that is cracked under the slab can also leave dampness, especially after a big wash day. If the water seems to arrive with a sewer smell, read the pages on sewer line repair and drain cleaning, since that is a different problem with a different fix.

Hot compared with cold

A plumber confirms by testing each line, not by clues alone.
Clue	Hot line leak	Cold line leak
Floor temperature	Warm or hot to the touch	Cool, damp or normal
Water heater	Runs often, may seem to struggle	Behaves normally
Sound	Hiss that rises when hot taps open	Hiss that rises when cold taps open
Where it shows first	Floor, near the heater route	Baseboard, slab edge or yard
Best way to locate	Thermal tools plus listening	Listening plus pressure isolation

Check it yourself

A short routine to confirm a slab leak before you call

None of this needs tools. It takes a meter, a hand on the floor and a few quiet minutes.

What is the quickest way to check?

Turn off every tap, the washer, the dishwasher, the ice maker and any sprinklers. Open the meter box, which usually sits near the street or lot line, and watch the small flow indicator. If it moves, water is escaping somewhere between the meter and your fixtures. Note the digits, wait an hour without using water and read it again. Some Greer CPW customers can also see usage through the utility’s advanced metering, which it describes as near real-time. Your bill or your water provider can tell you whether that view is open to your account.

Next, walk the house in bare feet on a quiet evening. Press a palm on the floor in each room and compare. Then stand still in each room and listen for a hiss. If the meter moves and you find a warm or loud spot, that points toward a line in or under the slab. If the meter moves and the floor gives nothing away, the leak may sit in a yard run, and the page on water line repair explains that case.

Before the call

Shut everything off
Taps, washer, dishwasher, ice maker, irrigation.
Read the meter
Write the digits and where the flow indicator sits.
Walk the floors
Palm on the surface in each room. Note warm or damp spots.
Listen in silence
A hiss that grows near one spot narrows the search.

A ten-minute routine that gives the plumber real information.

Which signs can look like a slab leak but are not?

Several everyday problems can mimic a leak under the floor. Sun on a window can warm a patch of tile. A hot water recirculation line can run warm along its route by design. A sweating cold line in humid weather can leave a damp spot. A drain that backs up can darken a floor. A toilet that runs, a dripping tap or an irrigation valve that sticks open can push the meter even when the slab is fine. The plumber sorts these out with a few questions. The guide to finding a water leak in your house covers the surface causes in more depth.

Lookalike problems

Rule out the simple causes first.
Looks like a slab leak	Could also be	Fast test
Warm tile near a window	Sun on the floor	Check again at night with blinds shut
Warm strip along one wall	A recirculation return line by design	Ask whether the home has a recirculation pump
Damp patch in humid weather	Condensation on a cold pipe	Dry it and watch whether it returns on a dry day
Meter moves, floor is fine	A running toilet or a stuck sprinkler valve	Dye tablet in tanks, irrigation shutoff, retest
Wet floor and sewer smell	A drain problem under the slab	Note whether the water appears after draining a tub

The options

Spot repair, reroute or repipe: how slab leak repair is done

There are three general routes. The right one depends on the pipe, the number of leaks and the layout above the floor.

What are the three routes, in general terms?

A spot repair opens the floor over the marked leak, exposes the line and replaces or patches that short section. It keeps the existing line where it lies. A reroute abandons the leaking run and installs a new line along a different path, often through the attic and down the walls, so nobody opens the slab at all. A repipe replaces many supply lines at once, usually when pipes show wear in several places. None of these is the best answer for every house, and the plumber explains why one fits yours.

Three ways to fix a slab leak

General guide. The plumber decides after inspecting the actual lines.
Route	What happens	When it tends to fit
Spot repair local fix	The floor is opened at the marked leak and that section is replaced	One leak in a line that is otherwise sound
Reroute new path	A new line is run overhead or around, and the old one is capped	The line is hard to reach or leaks in more than one place
Repipe whole system	Most supply lines in the house are replaced together	Many lines show wear and more leaks seem likely

What does a spot repair involve?

The plumber cuts a neat opening in the floor finish and the concrete directly over the mark, clears the debris and exposes the pipe. The damaged piece is cut out and a new section is joined in. The line is pressure tested, the opening is filled and the surface is patched. This route suits a single failure and keeps the rest of the house undisturbed. It is less appealing when the same pipe shows pitting along its length or when the leak sits under a fixed item such as a kitchen island, where access gets awkward. Noise, dust and a closed-off room are normal for a day or so.

Spot repair checklist

One leak, healthy lineShort section replaced, rest left alone.
Clear floor aboveNo fixed cabinets or walls to work around.
Finish can be matchedTile, vinyl or carpet over the opening can be restored.
Pressure test afterThe line is checked before the floor is closed.

When a spot repair is a reasonable fit.

Why is rerouting so common?

Breaking a slab is loud, dusty and disruptive, and the concrete under a finished house is hard to patch invisibly. A reroute skips that. New pipe is run through the attic, down inside interior walls and to each fixture. The leaking line under the slab is capped at both ends and left in place. You end up with a line you can reach later, and the floor stays whole. The tradeoff is that walls and ceilings need small openings, and there is more pipe to install. Homes with attic access and open interior walls tend to suit a reroute well.

A reroute path

Simplified. New lines travel overhead so the slab stays closed.

When does a repipe make sense?

If one leak has appeared and others seem likely, running new lines throughout is worth discussing. Signs include repeat leaks on the same run, pinholes in copper, discolored water at a tap or an older home with its original supply lines. The page on repiping and the guide on repiping a house: signs and what drives cost walk through the decision. Ask the plumber how many lines are at risk and whether a partial repipe of one zone covers the weak spots.

Repipe flags

Second leak in a short timeA repeat on the same line is a pattern, not bad luck.
Pinholes or green crustingSurface corrosion points to the line wall thinning.
Rusty or tinted waterDiscoloration at several taps hints at aging lines.
Original lines in an older homeAge raises the odds of more failures.

Reasons to price a bigger job.

Planning the work

What to expect while slab leak repair is under way in your home

Knowing the shape of the job makes the day easier to plan, even when the details change from house to house.

What happens in the house during the work?

Water to the house is usually shut off for part of the repair, so plan for no running water for a stretch. The plumber covers nearby floors, moves what can be moved and sets up fans or dehumidifiers if the area is wet. A concrete saw or a breaker makes loud noise and fine dust, so pets and small children do best elsewhere. Air machines are sometimes used to catch dust. The line is repaired or replaced, tested and then the opening is closed up. Any finish work such as tile, trim or paint is a separate step.

Work order

Protect the area
Floors and furniture near the work zone are covered or moved.
Shut off and drain
The water supply is closed and the line is drained.
Open and repair
The floor is opened, the damaged line is fixed or capped.
Test and close
Pressure test, then patch the opening.

The usual order, with no promise about how long each part takes.

What about the damage the water already did?

The pipe is only part of a slab leak. Water that ran for weeks can soak underlayment, swell wood floors, stain baseboards and feed mold in walls. Before closing the area, ask the plumber to look at the edges of the room and the base of the walls for dampness. If flooring or drywall stayed wet for a long time, a separate drying or restoration step may be needed. Talk with your insurer early if you carry homeowners coverage, since coverage differs by policy.

After the repair

Look here after the pipe is fixed.
Area	What to check	Why
Flooring	Cupping, lifting edges, soft spots	Moisture rising through concrete swells wood and vinyl
Baseboards and wall bases	Stains, bubbling paint, crumbly drywall	Water wicks up from the slab edge
Cabinets	Swollen toe kicks, odors inside	Cabinet bases sit close to the slab
Carpet and pad	Dark backing, musty smell	A wet pad holds moisture a long time
Soil by the foundation	Soft ground, new low spots	A leak can wash soil from under the slab edge

If water is rising

A slab leak is flooding the floor: what to do first

A flood from the floor is still something you can slow down. Close the supply first, then work on the cause.

Close the main valve
Turn it clockwise until it stops. If you cannot find it, the main water valve guide shows where to look.
Open the lowest tap
Draining the line eases pressure and slows the leak.
Keep clear of electricity
Do not stand in water near outlets or cords. Cut power to a wet room only if you can reach the panel safely.
Call and describe it
Say where the water is rising and what the meter did. A person answers at any hour.

Warm water, a sewer smell or gas odor?

If you smell gas anywhere in the house, leave and call from outside. A strong sewage smell with floor water is a different job. The page on gas leak repair covers a gas odor, and emergency plumber covers an after-hours call for flooding.

If a line has split and water is spraying, the guide on what to do when a pipe bursts goes further. Once the water is off, take photos and keep damaged items for your records.

Keeping it from coming back

Lowering the odds of another leak under the floor

No one can promise a line will never leak again, but a few habits help you catch problems sooner.

What can a homeowner do?

Watch the meter now and then. A quick look once a month, with everything off, takes less than five minutes. Compare your bills; a sudden climb without a reason is worth a call. Know where the main valve is and make sure it turns. If your home has a pressure regulator, ask whether the pressure at the house is in a gentle range, since high pressure strains old lines. The page on low water pressure and the guide on why water pressure drops cover the flip side of the same gauge.

Habits that catch leaks early

Monthly meter lookFlow indicator still when the house is idle.
Bill comparisonThis month against the same month last year.
Know the main valveTest that it closes and reopens.
Listen to the quiet houseA new hiss is worth investigating.
Ask about pressureA regulator that is set too high can stress old lines.

Five small checks that cost nothing.

Does chloramine or the local water matter here?

Greer CPW treats its water with a chlorine and ammonia combination known as chloramine, and the utility reports no violations in its 2025 water quality report. Water chemistry is one of several things that can affect plumbing over many years, but a slab leak has no single local cause, and the plumber looks at your pipe, not a statistic. If you want to know what your line carries, your bill or your water provider can tell you more about the supply at your address.

Local pointers

Useful pointers rather than local statistics.
Topic	What to do
Water quality questions	Read the utility’s yearly report or ask your water provider
Where the utility line ends	Check your bill or ask your water provider
Pipe material in your home	Ask the plumber to note it during the visit
Hard freeze nights	See the guide on protecting pipes from a hard freeze for exposed lines

Questions

Slab leak repair in Greer, SC: your questions answered

What is a slab leak?

A slab leak is a leak in a pressurized water line that runs in or under the concrete floor slab of a house. In a Greer, SC slab-on-grade home, the water escapes into the soil and gravel beneath the floor, so the first signs are often a warm spot, a hiss or a higher bill.

How do I know if I have a slab leak in my Greer home?

A water meter that keeps moving with every fixture off is the clearest sign of a slab leak. In a Greer home, also watch for a warm patch on the floor, a hissing sound at night, a heater that runs constantly and damp baseboards or flooring.

How does slab leak repair in Greer, SC work?

Slab leak repair in Greer, SC starts with confirming and marking the leak. Then comes one of three routes: a spot repair that opens the floor, a reroute that bypasses the slab, or a repipe of many lines. The plumber explains which fits your layout.

Can a slab leak be repaired without breaking the concrete?

Often yes. A reroute runs a new line through the attic or walls and caps the leaking one, so the slab stays closed. Whether it suits a Greer house depends on attic access, wall layout and the number of leaks. Ask the plumber to compare it with a spot repair.

How much does slab leak repair cost?

Price depends on where the line runs, the floor finish above it, the repair route and the number of leaks. Cost also reflects restoration of the opening. Ask about pricing when you call and describe the clues so the plumber can talk through the likely scope.

Why do two slab leak jobs in Greer cost different amounts?

A leak under a bare hallway is a different task from one under a tiled kitchen. In Greer homes, the route chosen, the finish on top and the number of leaks all shift the work. A plain description on the phone helps the plumber explain the range of options.

Can I tell if the leak is on the hot or cold line?

Often. A warm floor patch, a heater that runs constantly and slow hot water point to a hot line, while a cool damp floor and wet baseboards point to cold. In a Greer slab home, the plumber confirms by testing each line, since clues alone can mislead.

Is a slab leak an emergency?

Treat it as urgent. Water under a home keeps running and can soften soil and damage finishes. If water is on the floor, close the main valve first, then call. Phones in Greer are open 24/7 and same-day service is available for leaks that are running.

What should I do if I suspect a slab leak right now?

Check the meter with everything off. If it moves, shut the main valve to stop the loss and call. In your Greer home, avoid standing water near outlets, lift rugs and keep a note of any warm or damp spots on the floor to describe on the phone.

Will the water bill from a slab leak be higher than normal?

Usually, because the leak runs around the clock. A thin stream under a Greer slab house can add a lot to a billing cycle without any sign inside. Compare recent bills with the same months last year and look at the meter. Ask your water provider about adjustments.

Is slab leak repair the same as repiping?

No. A spot repair or reroute fixes one leaking line, while repiping replaces many lines. In Greer, a plumber may suggest repiping if several lines show wear or a second leak appears soon after the first. You can discuss each route on one call.

Can I get slab leak repair at night or on weekends in Greer?

Yes. Phones are staffed 24/7 by a person, and same-day service is available for slab leak repair in Greer, SC. If you hear a hiss under the floor or see water rising, call as soon as the main valve is closed.

Guides

Reading list for a leak under the floor

Think there is a leak under the floor? Call now.

Book slab leak repair in Greer, SC. Phones are open 24/7, a person answers, and same-day service is available.