SLAB LEAK DETECTION — AUSTIN & LAGO VISTA

Slab Leak Detection in Austin & Lago Vista, TX

If you have a warm spot on the floor, a sudden high water bill, running water sounds, or unexplained moisture, TruePoint helps confirm whether the source may be under the slab before repair decisions are made.

TruePoint investigates slab leak signs — warm floors, rising bills, running water sounds — using acoustic, thermal, and pressure testing to help confirm the source before any concrete is opened.

TruePoint provides slab leak detection for Austin and Lago Vista homes, investigating warm floor spots, high water bills, and running water sounds before repair decisions.

  • Slab leak detection for Austin and Lago Vista homes — investigates warm floor spots, high water bills, running water sounds, and unexplained moisture
  • Best fit for homeowners who suspect a pipe leak beneath the slab and want source confirmation before repair decisions
  • Not for commercial properties, active flooding, or emergency gas situations; residential diagnostics by appointment only
  • Next step: Start the diagnostic quiz or call 737-252-8129 for guidance
How We Investigate the Source
Acoustic listening
Detects leak sounds beneath slab without damage
Thermal scanning
Detects hot water migration through floor
Written findings
Plain-language report + next-step guidance
Licensed TX
Master Plumber
Non-invasive
when possible
Austin &
Lago Vista
Residential
only

What this service is

TruePoint helps Austin-area and Lago Vista homeowners investigate suspected slab leaks — pipes beneath the concrete foundation that may be losing water — using diagnostic testing to help confirm or narrow down the source before any flooring or concrete is opened.

Confirm the source before opening anything — a diagnostic report documents what was found and provides a recommended next step. Repair decisions are clearer when the source is confirmed.

Warning Signs

When to suspect a slab leak

These signs may indicate a pipe leak beneath your slab — worth investigating before assuming a repair scope.

  • Warm or hot spot on the floor

    An unexplained warm patch — especially one that stays warm regardless of season — can indicate a hot water line leaking beneath the slab. Learn more about warm floor spots.

  • Sudden high water bill

    A significant unexplained increase in water usage often points to a hidden leak. When a high water bill may mean a hidden leak.

  • Water meter moving when nothing is on

    With all fixtures off, a dial that still moves is a clear indicator water is escaping somewhere in the system. What a moving meter means.

  • Sound of running water under the floor

    A running water sound when all fixtures are off — especially near the floor or foundation — may suggest a pressurized pipe losing water below. Running water sounds explained.

  • Damp flooring or unexplained moisture

    Wet carpet, damp tile, or moisture without an obvious source near the slab level can indicate water migrating upward from a leak below.

  • Musty odor or recurring dampness

    Persistent musty smells at floor level — particularly in areas with no plumbing fixtures above — may suggest ongoing moisture from a slab leak.

These symptoms are indicators worth investigating. Not every warm spot or bill increase is definitively a slab leak — a diagnostic visit helps confirm the source before any repair decisions are made.

How slab leak detection works

The diagnostic process combines multiple methods depending on your symptoms and property. No single test works in every situation.

Primary method

Acoustic listening

Ground microphones detect the sound of pressurized water escaping beneath the slab — without opening floors. This helps narrow the suspected leak zone where possible.

Non-invasive · No demolition
Support method

Thermal scanning

Thermal imaging detects temperature differences caused by hot water migrating upward through the slab — particularly useful when warm floor spots are present.

Support method

Pressure testing

Isolating and pressurizing specific line segments confirms whether a leak is present in a given pipe run and helps narrow the affected zone before any repair planning.

The combination of methods used depends on symptoms, property layout, and what clues are available at the time of the visit. Every home and situation is different. The diagnostic process is designed to build a clearer picture of the likely source — not to guess.

Deliverables

What you get after slab leak diagnostics

Every diagnostic visit produces documentation you can use with any contractor or for repair planning.

See slab leak detection pricing

Texas Responsible Master PlumberRMP License #46545
  1. 01

    Source confirmation or narrowed location

    Plain-language summary of the likely leak source (when possible) with the supporting evidence gathered during the visit.

  2. 02

    What was tested and checked

    Documentation of all methods used, areas checked, and clues evaluated — including meter behavior, thermal readings, and acoustic findings.

  3. 03

    What was ruled out

    Areas tested with no leak evidence, helping you and future contractors avoid repeat diagnostics or unnecessary exploratory work.

  4. 04

    Recommended next step

    Clear guidance on repair evaluation, monitoring, or any follow-up needed. TruePoint can discuss repair options for eligible residential cases.

Slab leak detection cost

Slab leak concerns are assessed within the standard water leak diagnostic tier structure. The cost depends on your symptoms, how much of the system needs to be evaluated, property size, and access conditions.

$149
Focused Check
Single area, likely obvious source
$249
Standard Diagnostic
Broader symptom scope (typical for slab concerns)
$349
Comprehensive Scan
Large property or multi-area concern

Trip fee included in all tiers. Slab leak concerns typically require at least a Standard Diagnostic given the broader area that needs to be checked. For full pricing details and to find the right tier, see the pricing page or start the diagnostic quiz.

Important Distinction

Slab leak detection vs. slab leak repair

Detection
Confirms the source first

The diagnostic step. TruePoint investigates symptoms, runs tests, and provides a plain-language report of likely findings. No concrete or flooring is opened during the diagnostic visit.

  • Source confirmation or narrowed location
  • Written findings + photos
  • Recommended next step
  • No repair commitments required
Repair
Determined after findings

Repair method and scope depend entirely on what the diagnostic finds — the location, which line is involved, access conditions, and the homeowner's decision.

  • Method depends on confirmed source
  • Repair quote based on findings
  • TruePoint offers select residential repairs
  • Documentation works with any contractor

TruePoint's role is to help confirm or narrow down the source first. Once the suspected source is documented, the homeowner can make a clearer repair decision instead of starting with guesswork or unnecessary demolition. Learn more about repairs after diagnostics.

FREQUENTLY ASKED

Slab leak detection questions

Common signs that may indicate a slab leak include a warm or hot spot on the floor, a sudden unexplained increase in your water bill, the sound of running water when all fixtures are off, a water meter that moves when nothing is in use, or damp flooring and unexplained moisture. These symptoms are worth investigating with a diagnostic visit — not every case is definitively a slab leak until confirmed.

Not always. A warm floor spot can also be caused by radiant floor heating, HVAC ductwork beneath the slab, or other heat sources. However, if your home does not have radiant heating and the warm spot is accompanied by a rising water bill or running water sounds, a slab leak is a reasonable concern worth confirming through diagnostics.

Yes, a sudden unexplained water bill increase is one of the most consistent indicators of a hidden leak — including slab leaks. If your water usage has not changed but your bill has increased significantly, checking your water meter behavior and scheduling a diagnostic visit helps confirm whether a slab leak is the likely source.

In many cases, yes. Acoustic listening equipment can detect the sound signature of pressurized water escaping beneath a slab without opening the floor. Thermal imaging can reveal temperature anomalies caused by hot water migrating upward. Pressure testing can confirm whether a leak is present in a line. The goal is to confirm the source before any floor or concrete is opened.

Slab leak concerns are assessed within the standard water leak diagnostic tier structure. Depending on symptoms, property size, and how many areas need to be checked, slab leak diagnostics typically fall under the Standard Diagnostic ($249) or Comprehensive Scan ($349) tier. For full pricing details, see the pricing page.

No. Detection is the diagnostic step — confirming or narrowing down where the leak is and what line is involved. Repair comes after the source is confirmed. The repair method (rerouting, spot repair, tunneling) depends on where the leak is, what was found, and the homeowner's decision after reviewing the diagnostic findings.

You receive a written summary of findings including the likely leak location, what was tested, supporting documentation, and a recommended next step. TruePoint can discuss repair options for eligible residential cases, or you can use the documentation with your own contractor for repair quotes.

Yes. TruePoint provides slab leak detection for residential homes in Lago Vista, Austin, and surrounding Lake Travis area communities. Lago Vista homes on rocky limestone terrain are particularly susceptible to slab leaks due to soil movement and aging copper pipe systems.

Confirm the source before repair decisions

Answer a few questions about your symptoms and we'll route you to the right next step — or book directly.