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Hidden Water Leak Detection in Lafayette, LA

Finding a water leak inside walls, under floors or behind fixtures after a flood, a stain or damp drywall that will not dry.

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  • Flooded homes, burst pipes and roof leaks
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Leak Detection

Hidden Leak Detection: what it covers

Quick answer

Hidden leak detection finds a water source that is not visible, such as a pipe inside a wall or a drain under a floor. The crew uses moisture meters and, where needed, opens a small section to trace the water. Lafayette Water Damage Restoration responds in Lafayette and Lafayette Parish around the clock, and calls are answered 24/7.

Hidden Leak Detection illustration for Lafayette, LA

Some water losses have no visible source. A wall stays damp after the flood has been cleaned up, a floor under a bathroom feels soft, or a stain keeps coming back on a ceiling that was dry last month. The water is coming from somewhere inside the building, and the job is to find where before the drying can finish.

After a flood, a leak that was dry before can show up as damp drywall weeks later, because the water that came in from outside has changed the moisture balance in the building. The leak was not created by the flood, but the flood may have made it visible. A crew that treats the damp wall as a drying problem alone will miss the source.

Call (833) 490-5225 at any hour if a wall or floor stays damp, a stain keeps returning, or a water bill has risen with no obvious cause. Say where the damp area is, how long it has been there, and whether it grows after the drying is finished. A crew is sent as soon as one is free, and the call does not include a promised time of arrival.

Service area
Lafayette & Lafayette Parish
Availability
Phones answered 24/7
Warning signs

Signs you need hidden leak detection

Do not open a wall or floor that may contain live wiring without confirming the power is off to that area. Shut off the water at the main if you suspect a leak under pressure, and do not run the water to test it. Wear a mask and gloves when opening a wall, because the cavity can hold insulation, growth and debris. If a gas line is near the area, leave the search to the crew and the utility, and do not open the area yourself.

  • A damp patch on a wall or ceiling that returns after it has been dried
  • A floor that feels soft or cool in one spot, away from any visible water
  • A water meter that keeps moving when no fixture is in use
  • A musty smell in one room that does not clear with fresh air
  • Paint that blisters in a patch with no obvious water source above or beside it
  • A bathroom, kitchen or laundry floor that is spongy or has a dark stain under the trim
Job stories

Typical jobs for hidden leak detection

Typical job
Illustration: A damp wall returns after the flood water was cleaned up

A damp wall returns after the flood water was cleaned up

What homeowners notice
After a flood was cleaned out of a home, the wall behind the laundry sink stays damp and begins to show a faint stain. The owner has been told the room is dry, but the damp keeps returning.
What we do
The crew reads the moisture across the wall and the floor, and maps the readings to the sink, the supply lines and the drain beneath. It tests the connections, then opens a small section of wall at the point of highest reading. A supply line joint is found to be weeping, and the crew records it and asks for a plumber to repair it before the wall is closed.
What to expect
After the repair by a plumber, the wall is dried and the readings return to the dry reference. The owner receives the readings, the photographs of the opening and the note of the source, which go to the insurer with the rest of the file.

4-5 hours, over two visits typical visit

Options

Types and options for hidden leak detection

A leak in a supply line inside a wall

A supply line inside a wall can leak slowly for a long time, and the wall stays damp at one point. The crew reads the moisture across the wall and opens a small section at the point of highest reading. The line is then repaired by a qualified plumber, and the crew dries the cavity once the repair is done.

A leak in a drain under a floor

A drain line under a floor can leak where a joint has failed. The damp shows up as a soft spot or a stain on the floor, and the crew reads the floor and the area below. Where access is limited, the crew explains the options and what each one involves.

A roof, flashing or window leak that looks like a plumbing leak

Water from a roof or a window can run down a wall and show up far from where it entered, and it can be mistaken for a pipe leak. The crew checks the exterior and the upper parts of the wall before it opens anything below, so that the wrong part of the building is not opened.

Damp from the ground outside

Ground moisture can reach a floor or a wall from outside, especially after heavy rain or when the ground beside the building is wet. The crew measures the moisture at the foundation and the floor, and it separates that moisture from any leak inside the building.

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Can a meter find a leak inside a wall without opening it?

A moisture meter can show where the wall is wet, but it cannot see the pipe. The crew uses the readings to decide where to open, and it keeps the opening as small as the repair allows.

Meters measure the moisture in the material, not the water itself. A reading that rises toward one point in a wall shows where to look, and the crew uses several readings to narrow the search. Some crews also use thermal imaging, which can show temperature differences from wet material, and the results are read with the meter and not in place of it.

A reading can be misleading if the wall is wet from another source, such as a window or the ground. The crew checks the other possible sources before it decides where the leak is.

Why did the damp come back after the flood was cleaned up?

After a flood, a leak that was dry before can start to show as damp drywall, because the water from outside changes the moisture balance in the building. The flood may have made the leak visible rather than caused it.

A small leak that was hidden in a dry wall may not show until the wall is wet from another cause. The drying can then reveal the leak because the readings change as the cavity dries. A crew that stops reading the wall when the flood water is gone can miss that.

The readings from each visit show whether the damp is drying, staying the same or coming back. A reading that rises again after the drying is finished is a reason to look for a source inside the building.

What does a leak repair cost?

Lafayette Water Damage Restoration does not publish a price for leak detection or leak repair. The search is explained on site, and any repair is quoted by the plumber or contractor who does it. The price is approved by the owner before work starts.

The cost of finding a leak depends on how many areas must be read, how far the water has spread and whether the line is inside a wall, under a floor or under a concrete floor. A search that opens one small section costs less than one that opens several rooms, and the crew explains the plan before it starts.

The repair is a separate job. The plumber or contractor who does it gives the price, and the crew does not add the cost of a line repair to its own invoice without the owner's approval.

Should I shut off the water while I wait?

If you can find the main shut-off, closing it stops the water from moving through the lines while the search is done. Do not try to open walls or floors yourself, and keep a record of the water bill.

Closing the main can help if you suspect a leak in the supply lines, because the water stops moving and the meter can be watched. Turn it back on only when the crew or the plumber asks you to. Write down the meter reading before and after, if you can read it.

Keep the water bill for the period in question. A rise in the bill with no change in use can point to a leak, and it is part of the record that helps a claim or a repair.

Our process

How our hidden leak detection visit works

  1. Interview and history

    The technician asks where the damp is, when it was first seen, what happened before, and whether the water meter has moved. The history narrows the search to the fixtures, the lines and the rooms most likely to be the source.

  2. Surface and moisture survey

    Moisture meters are used across the walls, floors and ceilings in the area, and the readings are mapped. The map shows where the moisture is highest and how it spreads, which is the best guide to where the source is.

  3. Test the lines

    Supply lines and drain lines near the wet area are checked, including fixtures, valves and connections. Where a line runs inside a wall or under a concrete floor, the crew uses the meter readings and the water meter to decide where to test, and it does not guess at a location.

  4. Open to find the source

    Where the map and the tests point to a cavity, the crew opens a small, planned section to look at the line. The opening is kept as small as the repair allows, and it is photographed before and after.

  5. Report and next steps

    The technician writes down the source, the readings and the cause, and explains who should repair the line. The repair itself is done by a plumber or a qualified contractor, and the crew confirms the area is dried afterwards.

Lafayette Parish

Why hidden leak detection is different in Lafayette and Acadiana

Older and newer buildings in Lafayette can have very different line routes, so the crew asks about the age and layout of the building before it plans the search. The records of the previous repairs, where the owner has them, can save time on the search.

Heavy rain in Lafayette Parish can make a hidden leak show up in a different place, because the water from outside changes the moisture in the ground and in the walls. The crew reads the rain history with the leak history, so that the search is not sent to the wrong place.

Humid air in the Acadiana region can keep a damp wall damp for longer than a drier climate would, which makes it harder to tell apart from a leak. The crew compares the readings over several visits, so the difference between drying and a live leak shows clearly.

Where we work

Hidden Leak Detection across Lafayette Parish

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Related

Ceiling and Drywall Water Damage

Opening, drying and reading wet ceilings and drywall after a leak or flood, with the lowest wet section cut so the cavity can dry.

Insurance Claim Moisture Records

The moisture readings, photographs and written logs kept on every visit, so that an insurer can see what the water did and what was done about it.

Guides

Read before you book

FAQ

Hidden Leak Detection FAQs

How much does a leak search cost?

No price is published for leak detection. The search is explained on site before any work starts, and the owner approves the plan. The cost depends on the number of areas and whether a wall or floor has to be opened.

Will the crew find the leak in one visit?

Sometimes. Some leaks are found on the first visit, and others need readings over several visits before the source is clear. The crew explains where the search stands at each visit.

Can the crew fix the leak as well?

The search and the drying are the crew's work. A line repair is done by a plumber or qualified contractor, and the crew explains what the repair involves.

Does a leak search need a permit?

A repair to a building may require a permit, and the requirement depends on the work. Confirm with the parish or city permit office before a repair starts.

What if the damp keeps coming back after the repair?

Call the line and say so. The crew reads the area again, checks for a second source and dries the cavity if needed, and it records the readings on each visit.

Is the search covered by insurance?

That depends on the policy and the cause. Many policies treat a sudden leak differently from a gradual one. The insurer decides, and the readings and photographs are the record it will read.

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