When to act
Signs you need leak detection
- The water meter moves with every fixture closed
- A warm or damp patch on a floor slab
- Staining or bubbling on a ceiling or wall
- The sound of running water inside a wall
- Mildew smell with no visible source
The job itself
How leak detection is done properly
Leak Detection & Repair is handled by independent licensed plumbers in Texas. This page covers what the work involves, what changes the price, and the Texas code and permit rules that apply. Published ranges are on the separate leak detection costs page. Locally, the biggest markets for it are Houston, San Antonio, Dallas. Requests for it often arrive alongside water heater installation & replacement.
- A meter test confirms whether water is being lost
- The system is isolated section by section to narrow the location
- Acoustic, thermal-imaging or tracer-gas equipment pinpoints the leak
- Minimum-access opening is made to expose the pipe
- The section is repaired and the system re-pressurised and re-tested
Price drivers
What drives leak detection pricing in Texas
- 01
Whether the leak is accessible or under slab, in a wall or under landscaping
- 02
Detection method needed — acoustic versus thermal versus tracer gas
- 03
Repair method — spot repair, reroute, or partial repipe
- 04
Restoration of the opened surface (concrete, tile, drywall)
- 05
Whether secondary water damage remediation is required
Scope boundary
What a standard visit covers — and what is billed on top
The single biggest source of quote disputes is the boundary between these two columns. Get it written down before work starts.
| Normally included | Commonly billed on top |
|---|---|
| Meter test to confirm active water loss on the supply side | Cutting and patching drywall, tile or concrete to expose the pipe |
| Systematic isolation of branches to narrow the search area | Tracer-gas or thermal imaging escalation when acoustic methods prove inconclusive |
| Electronic or acoustic pinpointing and marking of the leak location | The repair itself, including rerouting a line around a failed slab section |
Local pages
Leak Detection by city in Texas
Each city page adds local ZIP coverage, permit authority and routing detail.
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Houston
Harris County
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San Antonio
Bexar County
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Dallas
Dallas County
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Fort Worth
Tarrant County
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Austin
Travis County
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El Paso
El Paso County
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Arlington
Tarrant County
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Corpus Christi
Nueces County
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Plano
Collin County
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Laredo
Webb County
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Lubbock
Lubbock County
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Garland
Dallas County
Before you sign
Questions to ask before authorising leak detection
- 01
For a slab leak, is a spot repair through the concrete or an overhead reroute proposed, and why that choice?
- 02
Will a written report with photographs and marked locations be provided, since insurers usually require proof of cause and position?
- 03
Which detection methods are included — acoustic listening, thermal imaging, tracer gas or a meter isolation test — and in what order?
- 04
Is the detection charge separate from the repair, and does it still apply if no leak is ultimately located?
Before anyone touches a pipe
Verify the licence. It takes two minutes.
- Who licenses the work: Texas State Board of Plumbing Examiners (TSBPE).
- Who pulls the permit: the licensed contractor, never the homeowner.
- What to ask for: the licence number, the registered name behind it, and an insurance certificate issued to the property address.
Answers first
Leak Detection in Texas — good questions
How do I know if I have a hidden leak?
The simplest test: turn off every fixture and appliance that uses water, then watch the water meter's low-flow indicator for 15–20 minutes. Any movement means water is leaving the system somewhere. That test does not tell you where — it tells you that detection is worth paying for.
Is a slab leak an emergency?
It is urgent rather than instantaneous. A slab leak will keep eroding fill under the foundation and driving up the bill for as long as it runs, so it should be located quickly — but you generally have hours to days, not minutes, unless water is entering the living space.
Will detection damage my floor?
Modern detection is designed to avoid that: the point of acoustic, thermal and tracer-gas equipment is to make one small opening instead of several exploratory ones. Ask the contractor what restoration is and is not included before work starts.
What information speeds up a leak detection callback?
Three things: where the water or problem is showing, whether the supply is shut off, and the property type — slab, crawl space or basement. With those, a pro covering Texas can triage the urgency and bring the right parts.
How should a leak detection quote be compared?
Line by line against scope: what is included, what is excluded, who pulls the permit, and whether haul-away and restoration are inside the number. The cost guides on this site list published third-party ranges so any quote can be sanity-checked.
Who handles the permit for leak detection in Texas?
The licensed contractor pulls the permit — never the homeowner. If a contractor proposes skipping a required permit, treat that as the signal to stop and verify the licence.
What warranty applies to the work?
Whatever the contractor offers in writing — PlumberTexas is not a party to the agreement. Ask for labour and parts warranty terms in the quote, and keep the licence number with the paperwork.
How does the callback request work?
The 30-second form asks for a name, ZIP and the number to reach you on. The request routes to an independent licensed professional covering that area, and they call you back. Consent for marketing contact is optional — the request goes through with or without it.
Get connected
Leak Detection in Texas
One short request is enough to reach an independent licensed plumber covering Texas. You keep control of scope, price and the decision to hire.
- Requests handled around the clock
- An independent licensed pro calls you back
- No obligation to hire
Prefer a call back?
Half a minute of typing; the callback comes from an independent licensed pro.
Request received
It has been routed to an independent licensed professional covering your area — they will call you back on the number you entered.
Keep reading
Related reading
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Cost guide
Leak Detection cost ranges in Texas
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Services
All plumbing services
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Licensing
Texas licensing and permits