Slab Leak Repair in Hickory, NC

A slab leak is a leak in the water pipe underneath your home’s concrete foundation. It is one of the trickier plumbing problems because you cannot see it, and left alone it can damage your foundation and your home. We find it and fix it the right way.
Plumbing Hickory, NC detects and repairs slab leaks across Hickory and Catawba County. We pinpoint the leak under the slab, then choose the least invasive repair that solves it for good. Call (828) 742-8939.

Call (828) 742-8939

What is a slab leak?

Many homes are built on a concrete slab foundation, with water and drain pipe running beneath or within that concrete. When one of those pipes develops a leak, it is called a slab leak. Because the pipe is under the slab, the water has nowhere obvious to go, so it can undermine the foundation, seep up through the floor, and cause serious, hidden damage before you realize what is happening.

Signs of a slab leak

Slab leaks give subtle warnings. Call us if you notice:

Because these signs overlap with other leaks, proper detection is essential to confirm the leak is actually under the slab. See our leak detection service.

Warm or hot spots on the floor, often a sign of a hot water line slab leak
The sound of running water when everything is off

A sudden spike in your water bill
Cracks in the floor or walls

Damp, warped, or discolored flooring
A drop in water pressure

Mold or a musty smell near the floor
Pooling water or moisture with no clear source

What causes slab leaks?

Understanding the cause helps us choose the right repair and prevent a repeat.

Corrosion. Older copper pipe corrodes over time, and acidic water speeds it up. Pinhole leaks form and grow.

Abrasion. Pipe that rubs against concrete, gravel, or rebar as water flows through it can wear a hole over years.

Poor installation. Kinked or poorly laid pipe under the slab fails early.

High water pressure. Excessive pressure stresses pipe and joints under the slab.

Shifting soil. Ground movement and settling can stress and crack pipe beneath the foundation.

How we detect a slab leak

Finding the exact spot is critical, because you do not want to open more of your floor than necessary. We use:

Acoustic listening equipment to hear water escaping under the slab
Thermal imaging to detect the heat of a hot water slab leak
Pressure testing to confirm the leak and isolate the affected line
Electronic line location to trace the pipe’s path

This lets us pinpoint the leak precisely before we touch the concrete.

How do you repair a slab leak?

There is no one-size-fits-all fix, and an honest plumber matches the method to your situation. The main options:

Spot repair

If the leak is in one accessible spot, we can open a small section of the slab, repair that piece of pipe, and patch the concrete. This works well for a single, isolated leak.

Reroute or repipe

Sometimes the smarter fix is to bypass the failing section by rerouting the line through the walls or ceiling instead of back under the slab. For older pipe that is likely to keep failing, rerouting or a partial repipe can be more cost-effective than repeatedly opening the floor.

Full repipe

When the pipe under the slab is old and failing in multiple places, replacing the affected plumbing is the lasting solution rather than chasing one leak after another.

We explain the options honestly, with the cost of each, so you can make the right call for your home and budget.

Trusted by Homeowners & Businesses Across Hickory

Why slab leaks matter in Hickory

Slab-foundation homes. Plenty of Hickory homes, especially certain newer subdivisions and additions, are built on slabs and are candidates for slab leaks.
Aging copper. Older copper pipe corrodes with time, and acidic well water accelerates it, a real factor for homes outside the city. See water treatment.
Water pressure. High pressure stresses pipe under the slab, and a pressure reducing valve helps protect it.
The cost of waiting. A slab leak left alone can undermine the foundation, so early detection and repair save you far more than they cost.

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Our slab leak repair process

Detection

We confirm the leak is under the slab with proper detection, not a guess.

Call (828) 742-8939

Pinpoint

We pinpoint the exact location to minimize what we open.

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Repair

We complete the repair, spot fix, reroute, or repipe, to North Carolina code.

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Options & Pricing

We walk you through the repair options and give you upfront pricing.

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Testing

We test the system and confirm the leak is resolved.

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What does slab leak repair cost in Hickory?

Honest 2026 guidance:

Detection is typically a diagnostic fee, often from around 150 dollars to several hundred.

A simple spot repair costs more than a standard leak fix because of the concrete work involved.

A reroute or partial repipe costs more but can be the better long-term value for old pipe.

The final price depends on the location, access, and the method that fits.

We give you an upfront price for the option you choose, and financing is available for larger repairs.

Why homeowners trust us with slab leaks

We confirm and pinpoint the leak before opening any concrete
We recommend the least invasive method that will actually last
Honest options and pricing, including reroute versus spot repair
Licensed, bonded, and insured, working to North Carolina code
Local knowledge of slab homes, aging copper, and acidic well water

Verify any North Carolina plumbing license at nclicensing.org.

Areas we serve

We repair slab leaks across Hickory, including Downtown, Viewmont, Oakwood, Kenworth, Lake Hickory, St. Stephens, and Mountain View, plus Newton, Conover, Claremont, Maiden, Longview, Sherrills Ford, Denver, Granite Falls, Lenoir, Morganton, and Taylorsville. See all service areas.

“Diagnosed our slab leak fast and fixed it without tearing up the whole floor. Fair price and great communication.”
Lisa m.
Claremont, NC

“Our toilet kept running and our water bill was climbing. They fixed it same day and saved us money. Solid work.”
james r.
Newton, NC

Replaced our old galvanized pipes with PEX. Crew was clean, respectful, and finished ahead of schedule. Highly recommend.”
patricia w.
Conover, NC

“Fast, fair pricing, and they explained everything upfront. No surprises. Will definitely use them again for any plumbing needs.“
mark t.
Hickory, NC

Warm floor or high bill? It could be a slab leak.

Do not let a leak undermine your foundation. Call a local plumber who finds it precisely and fixes it right. Call (828) 742-8939 or email info@plumbinghickory.com.

Call (828) 742-8939

Frequently asked questions

Common signs are warm spots on the floor, the sound of running water when everything is off, a spike in your water bill, cracks in floors or walls, damp or warped flooring, low water pressure, and a musty smell near the floor. Proper detection confirms it.

We pinpoint the exact location first, then choose the least invasive method, either a small spot repair, or rerouting the line through walls or ceiling to avoid the slab. That keeps the concrete work to a minimum.

Detection is typically a diagnostic fee from around 150 dollars to several hundred, and the repair depends on the method. A spot repair involves concrete work, while a reroute or partial repipe costs more but can be the better long-term value. You get an upfront price.

They can cause serious damage if ignored, undermining the foundation, damaging flooring, and causing mold. They are not usually an immediate safety hazard, but they should be repaired promptly to avoid costly structural damage.

Common causes are corrosion of older copper pipe, abrasion from pipe rubbing against concrete, poor installation, high water pressure, and shifting soil. Acidic well water can speed up corrosion.