Your water bill has climbed, there's a warm patch on the floor, or the cabinet under the sink smells damp even though everything looks dry. You need someone to find the source, but you don't want a crew opening walls based on a hunch.
Good leak detection pros separate a symptom from a diagnosis. They explain which test they'll start with, what the result can prove, and what evidence they need before recommending an opening. For homeowners in Georgetown and Austin, that process matters more than a headline accuracy claim or an attractive flat fee.
Credentials and Red Flags to Check Before You Book
Start with a plumbing license you can verify with the Texas State Board of Plumbing Examiners. Ask who will perform the plumbing tests, who supervises the work, and whose license covers the proposed scope. A restoration company may coordinate with a plumber, so establish those responsibilities before booking.
Next, request certificates of liability insurance and workers' compensation coverage, sent directly to you by the insurer or its authorized agent. Don't treat a policy image on a technician's phone as confirmation. If the company says it doesn't carry workers' compensation, ask for that disclosure in writing and clarify who employs the people entering your home.
Credentials and practices to verify before hiring
| Check | What to confirm | Red flag |
|---|---|---|
| Plumbing license | Current license number verifiable with the Texas State Board of Plumbing Examiners | No license number, or reliance on someone else's license without an explained supervisory relationship |
| Liability and workers' comp insurance | Certificate issued directly to you by the insurer or authorized agent | Refuses or delays providing the certificate in writing |
| Written scope | Named tests, equipment, and expected report format | Quotes a flat fee with no method described |
| Report format | Photos, meter readings, moisture readings, and marked locations, as applicable | Gives a verbal result only |
| Emergency availability | Response window stated in writing | Vague promises of coming soon |
A flat fee isn't automatically a problem. It can work well when the company defines the system being tested, the access required, and what happens if the investigation needs another method. The red flag is a price attached to an undefined service.
Checks worth making yourself
- Get the license number early. Verify it before the appointment, not while a technician is waiting at your door.
- Confirm coverage independently. Contact the insurer or issuing agent to verify that the policy is active and the business name matches your contractor.
- Compare methods, not just totals. A visual inspection and a branch-isolation investigation aren't equivalent services.
- Keep payment tied to deliverables. Avoid paying the full investigation charge before the agreed written report exists.
- Read reviews for repeated behavior. Look for patterns involving unauthorized openings, missing reports, unexplained charges, or poor follow-up.
Booking rule: A company that can't explain how it plans to investigate hasn't yet given you enough information to hire it.
You don't need the technician to predict the exact leak location over the phone. You do need a sensible starting method and a clear explanation of what would trigger additional work.
Questions That Show How Accurate a Pro Really Is
A single accuracy percentage tells you very little about your house. Detecting abnormal flow, locating a pipe route, and marking the opening needed for repair are different tasks. Ask which task a company's accuracy claim describes.
A 2026 systematic review of 40 studies reported typical localization errors of roughly ±1% to ±5% under stated hydraulic conditions, while AI-assisted systems exceeded 95% accuracy in particular research applications. Those findings aren't a guarantee for locating a residential leak beneath your slab.
Performance changes with pipe material, pressure, background noise, moisture conditions, and access. A pressurized supply leak produces different evidence from a shower drain that leaks only during use or rain entering around a window.
Ask for conditions, not reassurance
- Can you distinguish active leakage from residual moisture? Ask what the technician would operate, isolate, or remeasure to establish whether water is still entering the assembly.
- How will you verify the location before opening anything? Look for an answer involving corroborating tests, not a bright thermal image alone or the loudest sound.
- What will I receive if you don't find a leak? The report should identify the areas tested, conditions during testing, findings, and unresolved possibilities.
- Is a meter test enough for this symptom? The answer should account for intermittent toilets, scheduled irrigation, drainage failures, and weather-related intrusion.
Thermal imaging deserves particular scrutiny. A camera displays surface-temperature differences, not water inside a wall. Evaporation, insulation gaps, sunlight, and air movement can affect the image, so a suspicious pattern needs interpretation and targeted moisture checks. This explanation of thermal imaging leak detection is useful preparation for discussing what the camera can establish.
A confident answer that names its conditions is worth more than a percentage without a defined test.
Also ask how narrowly the technician expects to mark the suspected area. An honest answer may be a bounded investigation zone rather than a pinpoint, especially where access or pipe routing remains uncertain.
Local Leak Risks in Georgetown and Austin
Say your Georgetown home develops damp flooring after heavy rain. You're also planning a trip, and a cold snap is forecast. Those circumstances call for different checks, not a single assumption that every wet patch comes from a broken supply pipe.
After a storm, water can enter through exterior openings, collect around a foundation, or reach a crawl space. Wet ground and recently soaked materials make moisture readings harder to interpret. Ask whether the technician will document weather conditions and arrange a return check after the surrounding ground dries if the initial findings are inconclusive.
Match the investigation to the event
After a freeze, exposed or poorly insulated plumbing deserves early attention. Garage piping, exterior connections, and vulnerable runs near outside walls are sensible places to inspect. A split may become apparent only after the line thaws and water pressure returns.
With suspected slab movement, ask about experience tracing and isolating under-slab plumbing. Expansive clay soils in Central Texas can move with changing moisture conditions and stress foundations and piping, but a floor crack alone doesn't establish a pipe failure. A provider handling leak detection under a concrete slab should explain how it identifies the relevant line before choosing an access point.
Before leaving an empty house, make the response practical:
- Locate the main shutoff. Make sure a trusted local contact can reach it without searching through locked storage.
- Check irrigation controls. Identify the timer, scheduled watering, and any smart valve so normal operation isn't mistaken for unexplained use.
- Record the meter. Take a clear photo before departure and note which water-using systems will remain active.
- Ask about the full scope. Confirm whether the provider investigates drainage and irrigation problems as well as indoor fixtures.
A rising bill is a reason to investigate consumption, not a diagnosis of a slab leak. Likewise, storm-related dampness shouldn't automatically become a plumbing repair.
For an occupied home, you may be able to watch the symptoms develop. For a rental or vacant property, ask who can attend after hours, whether they can isolate the source, and how they'll obtain authorized access.
Leak Tests and the Visit, Step by Step
A useful investigation moves from broad confirmation to controlled isolation, then to a defensible location. The technician should explain why each test follows the previous result. A meter recheck uses a set observation period; a static-pressure check and a toilet dye test each use a short, defined observation. They answer different questions and cannot, on their own, pinpoint every hidden pipe leak.
Leak tests, how they work and what they prove
| Test | How it works | What it rules in or out |
|---|---|---|
| Water meter recheck | Stop all intentional water use, record the meter, and recheck after the observation period | A change confirms flow through the meter; no change leaves intermittent and non-consumptive leaks unresolved |
| Static-pressure test | Shut off the supply to the test section and observe a gauge | A pressure drop supports leakage from the isolated system, after ruling out fixture use and test-setup problems |
| Toilet dye test | Add dye to the tank, wait without flushing, and check the bowl | Color reaching the bowl confirms tank-to-bowl leakage, commonly at the flapper or seal |
| Fixture-by-fixture isolation | Close branches and fixtures individually while watching the meter | Narrows flow to a toilet, irrigation line, or supply branch |
| Moisture sensor scan | Checks specific locations in walls and floors | Identifies wet conditions at tested spots; high humidity can trigger some sensors |
| Flow monitor | Tracks water-consumption patterns | Identifies irregular supply flow, but cannot directly detect roof intrusion, AC-condensate discharge, or drain leakage |
From intake to a documented finding
Start with the history. Ask when the symptom appeared, whether it follows fixture use or rain, and what changed before it began. Water can travel along framing, flooring, or a pipe before it appears, so the most visible stain may not mark the source.
Establish whether water is moving through the meter. Stop faucets, appliances, ice makers, irrigation, and other intentional uses before recording the reading. Movement establishes consumption somewhere downstream. It does not locate the leak, and a stationary meter does not clear a shower drain or roof.
Test the relevant supply section for pressure loss. A gauge shows whether an isolated section holds pressure under the test conditions. Passing valves, fixture use, gauge connections, and temperature effects can affect the reading, so account for them before blaming a concealed pipe.
Check toilets before pursuing destructive access. Dye moving from the tank into the bowl identifies an internal leak that may leave the bathroom floor dry. A toilet can leak even when the reported concern is a damp area elsewhere.
Isolate branches and investigate separate systems appropriately. Closing a toilet stop, irrigation isolation valve, or supply branch can narrow unexplained flow. Drainage, HVAC condensate, and building-envelope problems need separate functional or moisture checks because they are not all pressurized supply branches.
Corroborate the suspected location. For a concealed supply leak, that might mean matching branch-pressure loss with acoustic evidence along a traced pipe route. A targeted moisture reading can support the assessment, but wet material alone does not prove the pipe directly behind it is leaking.
Leave a written report. It should identify test locations, readings, photos, marked areas, limitations, and the recommended next action. If the technician could not reproduce an intermittent leak, the report should state that rather than present the result as proof that no leak exists.
The sequence can change to fit the symptom. An active overflow needs immediate isolation; a ceiling stain that appears only when an upstairs shower runs calls for a controlled use test. The technician should adapt the order while distinguishing observation from proof.
Before destructive access: Require an explained location, corroborating evidence, and your authorization for the proposed opening.
Acoustic equipment can help when escaping water produces a readable signal, but background noise and pipe construction can interfere. Moisture instruments also require sensible placement and comparison readings. Their displays are not a map of the source.
A complete report states these limits plainly and gives the repair contractor a reason for the marked location, along with any remaining uncertainty.
Why Fixing the Leak Does Not Finish the Job
A supply line bursts overnight in an empty vacation home. A sensor sends an alert, but the owner sleeps through it and the local contact can't get inside. The device detected water correctly, yet nobody stopped the supply.
That distinction matters when choosing equipment. A point sensor responds to water at its location and may sound an alarm or send a phone notification, while a whole-home system may pair flow monitoring with an automatic shutoff, as this guide to smart leak detectors and insurance credits explains. Don't assume an alert-only device can operate a valve.
Make the alert actionable
Ask the installer what happens during a power or internet outage. Local sensing, phone notifications, remote control, and automatic valve operation may have different dependencies. Confirm each function separately instead of accepting a general statement that the device has backup capability.
- Assign alert recipients. Include someone who can act locally, not just an owner traveling out of town.
- Arrange access. The person responding needs permission and a workable way to reach the shutoff.
- Test the response. Follow the manufacturer's procedure to check notifications and valve operation.
- Plan for nuisance alarms. Understand sensitivity settings and how the system handles unusual but legitimate water use.
Separate source control from building recovery
First, detect and isolate the source. Stop further discharge, identify the failed component, and arrange the appropriate repair. Where water is near electrical equipment, keep people away and have the relevant professional address the hazard.
Then, assess and dry the affected materials. Water can remain beneath flooring, behind cabinets, inside insulation, and within wall cavities after the plumbing works again. The restoration scope should identify affected assemblies, establish comparison readings in unaffected materials, and document drying progress.
Removing every damp-looking finish isn't automatically necessary. Neither is leaving everything in place and pointing a fan at the surface. Material condition, accessibility, contamination, and the ability to verify drying should guide that decision.
A repaired pipe does not prove that an assembly is ready to close. Require documented moisture assessment before rebuilding concealed areas, not just reassurance that the visible surface feels dry.
What Cost Looks Like and What Paperwork to Request
An investigation price means little until you know what it buys. Ask for an itemized quote that separates diagnosis, access openings, plumbing repair, water extraction, drying, and reconstruction.
A flat investigation fee may suit a clearly defined scope. An open-ended investigation needs a spending limit and a point at which the technician must call for approval.
Questions that expose the actual charge
- What is included? Ask which systems, methods, and accessible areas the quoted visit covers.
- What happens if nothing is found? Establish whether the visit is still billed and what written findings you receive.
- Is the test fee credited? Ask whether hiring the same company for repair changes the diagnostic charge.
- Who authorizes added work? Require written approval before opening a wall, lifting flooring, or extending the investigation.
Use this overview of leak detection service costs to prepare your questions, then request a property-specific scope rather than assuming a general price applies.
Keep diagnosis, access, repair, and drying as separate line items, even when one company handles them all.
For an insurance claim, request the report and photographs before approving destructive access when circumstances allow. Ask the adjuster what documentation is needed, and preserve removed components when the insurer requests them.
Confirm coverage with the insurer, not only the contractor. Sudden water damage and gradual leakage may be treated differently under your policy, and the cause, exclusions, and maintenance history can affect the decision. Get the price of each proposed opening or repair in writing before approving it.
Compare Providers and Get the Scope in Writing
Give competing providers the same symptom history, photos, access information, and questions. Otherwise, you may compare a basic inspection with a full concealed-leak investigation and mistake the difference for overpricing.
Use a side-by-side checklist rather than relying on the confidence of the person answering the phone.
Choose the clearest commitment
- Accountability is named. You know the responsible company, plumbing license arrangement, and insurance status.
- Methods fit the symptoms. The proposal identifies tests and equipment rather than promising to find any leak with one tool.
- Deliverables are defined. The scope specifies photographs, readings, marked locations, and written conclusions appropriate to the investigation.
- Permission boundaries are explicit. Nobody opens finishes or starts repairs without the agreed authorization.
- Response expectations are realistic. Arrival timing, access arrangements, and responsibility for follow-up are recorded.
RestoTek TX is one option serving Georgetown and Austin homeowners, offering leak detection within its water damage restoration services. Homeowners can request an estimate through its website; confirm current service coverage, testing methods, availability, and any diagnostic charges directly before booking.
The cheapest flat fee may be reasonable if it covers the investigation you need. It's poor value if you discover afterward that location marking, a written report, or the relevant system test wasn't included.
Choose leak detection pros who can name their tests, their evidence, and their limits. Get the final scope signed before work starts, and retain it with the report, photographs, approvals, and invoices. Those records give the repair team a usable handoff and help you explain the loss to your insurer without relying on memory.
RestoTek TX offers leak detection and water damage restoration for Georgetown and Austin properties, including assessment, water removal, structural drying, and repair coordination. Visit RestoTek TX to request an estimate, describe your symptoms, and ask for a written scope identifying the proposed tests and documentation before work begins.
