Duluth Water Leak Detection ProsWater leak detection · Duluth, GA · Open 24 hoursSlab Leak Detection in Duluth, GA
Slab leak detection in Duluth, GA, in ZIP codes 30096 and 30097, finds a pipe leak under a concrete floor without opening it first. We check your meter, narrow the area with acoustic and thermal checks, and mark the leak point for repair.
A slab leak is a leak in a pipe that runs beneath a concrete slab floor. You cannot see the pipe, and you usually cannot see the leak itself. What you see are the effects: heat or dampness reaching the floor surface, a bill that climbs, or flooring that changes. That is why slab detection is a different job from fixing a visible drip. The work is not to look harder at the floor, but to narrow the pipe underneath it to a point that can be marked and discussed before anything is cut.
Signs of a slab leak
Not every sign below appears on every slab leak, and some signs overlap with other leaks. The pattern matters more than any single item. A bill spike plus a warm floor is a stronger slab signal than a bill spike alone, which could also be a toilet, an appliance, or a yard line.
| Sign | What it suggests |
|---|---|
| Warm patch on a tile or concrete floor | A hot-water line leaking under the slab, warming the concrete above it |
| Water bill rises with no change in use | Water escaping continuously under pressure, often before any visible dampness |
| Damp flooring, warped boards, or lifting tiles | Moisture reaching the floor surface from below over time |
| Sound of running water under the floor | Pressurised water escaping from a concealed pipe |
| Damp baseboards or a musty smell near a floor | Moisture travelling from the slab into wall and floor materials |
| Meter moves with everything off | A leak somewhere in the system — the shutoff test then separates slab from yard |
Who needs slab leak detection
This page is for a homeowner or property manager in Duluth who has a slab floor and one of the signs above, especially a warm floor or a bill spike that a toilet check has not explained. It is also for someone who has already had a visible-leak check that found nothing, because a slab leak is exactly the kind of leak a visual check cannot find. If the leak is visible — a dripping tap, a pipe joint you can see — a general plumber is the faster first call, because the source is already known and the job is repair, not search.
Slab detection is also the right step before any concrete work is authorised. Cutting a slab to search for a leak is expensive and disruptive, and it often opens the wrong spot when the search is guided by a stain rather than a narrowed location. A detection inspection that marks a point first lets any later repair be discussed with a location in hand, including what it would open and what it would cost, before work starts.
How slab leak detection works
The inspection follows the same narrowing logic as other detection work, with the checks chosen for a pipe under concrete. It starts with a conversation about symptoms — when the bill changed, where the floor feels warm or damp, and what has already been checked — because those details decide which checks are useful and which would waste time.
- Meter check. With every tap, appliance, and toilet cistern off, the meter is read, then read again after a period without water use. Movement confirms water is escaping somewhere in the system.
- Isolation. The house shutoff is closed. If the meter stops, the leak is inside, which keeps a slab leak in play. If it keeps moving, the leak is more likely on the buried yard line, and the underground page answers that question instead.
- Thermal narrowing. A thermal camera looks for temperature patterns on the floor surface. This works best for hot-water lines, where escaping water warms the slab. It is weaker for cold-water leaks, where the temperature difference is small.
- Acoustic narrowing. Listening equipment picks up the sound of pressurised water escaping. Depth, floor covering, and background noise all affect how clear that signal is, so it is used alongside the thermal pattern, not as a single proof.
- Mark and explain. The narrowed point is marked and explained, including how confident the narrowing is and what the next step — repair, rerouting, or a further check — would involve.
Methods used for slab leaks, and their limits
Competitor pages in the Duluth and Atlanta area often present one method as the answer. The honest version is that slab detection combines methods, and each one has a limit that matters for a concrete floor. Thermal imaging does not see through concrete; it reads surface temperature, so thick coverings and cold-water leaks weaken it. Acoustic listening hears pressurised water, but a slow leak may be quiet and a busy house may mask it. Moisture readings show where damp has reached, not necessarily where the pipe broke, because water travels along a slab before it surfaces. Pressure testing can separate sections of pipe, but it needs access points that may not exist in every home.
That combination is also why the page does not list a specific brand of equipment as the provider's. The methods above are the standard methods used in slab detection, described here so a caller can ask good questions. Which methods are used on a particular job depend on the symptoms, the floor, and the pipe layout, and are confirmed on the call. A provider who promises a location from a single check, sight unseen, is promising more than these methods can deliver.
Detection versus opening to search
| Approach | Opening | Result |
|---|---|---|
| Detection first | Marked point only | Location known before work |
| Opening to search | Multiple exploratory cuts | Often the wrong spot |
What slab detection does and does not do
We locate the leak and explain how we narrowed it. It does not repair the pipe, reroute a line, or replace a section — those are separate decisions, discussed after the location is known. It does not guarantee that a leak will be found on the first visit, because some leaks are slow, deep, or masked by floor coverings. It does not cover gas, roof, or pool leaks, and it does not replace a general plumber for a visible leak. What it does give is a marked location and a clear next step, instead of a search that opens concrete to find out where to look.
What affects the cost of a slab leak inspection
We do not publish a fixed price here, because no price has been supplied for our business and national ranges found online are not Duluth prices. The factors that move the fee for a slab job are specific: the floor covering and its thickness, which affect thermal and acoustic signals; whether the leak is hot or cold water, which decides which checks are useful; the size of the slab area that has to be ruled out; how many pipe sections can be isolated for pressure testing; and whether the inspection has to work around finished flooring that cannot be disturbed. Detection and any later repair are priced separately, so ask on the call whether the detection fee is separate from a repair quote, and what the inspection includes — a marked location and an explanation, not a repair.
Safety and limits for slab leaks
If water is spreading across a floor, a ceiling below is sagging, or you hear a steady rush under the floor, shut off the main water valve if it is safe to reach, keep clear of wet electrical outlets and switches, and call. Do not touch wet electrics. A slab leak that has been running for a while may have damaged flooring and baseboards, and the repair discussion should include what else has been affected, not just the pipe. If you smell gas, leave and call your gas utility or emergency services — that is not a slab-leak job.
Common questions about slab leaks in Duluth
What is a slab leak?
A slab leak is a leak in a water pipe that runs under a concrete floor slab. The pipe itself is hidden, so the leak is usually noticed by its effects first: a warm patch on the floor, a water bill that rises for no clear reason, damp flooring, or the sound of water under the floor. Because the slab covers the pipe, finding the leak takes a narrowing inspection rather than a visual check.
Why is a warm patch on the floor a slab-leak sign?
A warm patch points to a hot-water line leaking under the slab, because the escaping hot water warms the concrete and the floor above it. Cold-water leaks do not warm the floor in the same way, so a cold-water slab leak may show only as a bill spike or dampness. That is why a warm floor is a useful clue but not a complete test on its own.
Does finding a slab leak mean the concrete has to be broken?
Not always, and not before the location is known. Detection narrows the leak to a marked point first, using the meter test, isolation, and thermal and acoustic checks. Any opening that follows is discussed after that point is marked, and the size and position of the opening depend on the leak and the repair method chosen. Detection itself does not repair the pipe.
How is a slab leak different from a yard leak?
A slab leak is inside the house, under the floor. A yard leak is on the buried line outside, between the meter and the house. The house-shutoff test separates them: close the shutoff and a slab leak is on the inside side, while a yard leak keeps the meter moving. Getting this distinction right matters, because the checks and the access are completely different.
What should I do if I suspect a slab leak?
Start with the meter test: turn everything off, note the reading, wait without using water, and read it again. Movement points to a leak. Note the symptoms too — where the floor feels warm, where flooring looks damp, and when the bill changed. Those three facts help the call go faster and help the inspector know which checks to start with.
Can a slab leak damage the house if it is left alone?
Yes, over time. Water under a slab can keep a floor damp, damage flooring and baseboards, and encourage mould growth in damp materials. It also wastes water continuously, which is why the bill is often the first sign. How fast damage appears depends on the leak rate and the materials involved, so a suspected slab leak is worth a call rather than a wait-and-see approach.
Call (770) 214-4798
Call to discuss a warm floor, a bill spike, or damp flooring in Duluth 30096 or 30097, and arrange a slab leak inspection.