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Hidden Slab and Wall Leak Detection in Albuquerque

Leaks under a slab or inside a wall, found from damp spots and utility bills, then traced and dried.

  • Phones answered 24/7
  • Water extraction and drying
  • Repair coordination

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Hidden Leaks

Hidden Slab and Wall Leak Detection: what it covers

Quick answer

Hidden leak detection finds water escaping inside a wall, under a floor or beneath a slab, where it does not show as a stain at first. In Albuquerque, Albuquerque Water Damage Restoration sends a local technician 24/7 as soon as one is free to take moisture readings, trace the likely path and open the building only where the readings call for it.

Hidden Slab and Wall Leak Detection illustration for Albuquerque, NM

The worst water leaks are the ones nobody sees. A supply line inside a wall or a drain under a slab can run for weeks before it shows as a stain, and by then the framing, the subfloor and the insulation around it are soaked. The first sign is often a damp spot on the floor, a soft patch in the drywall or a utility bill that is higher than it should be.

Albuquerque Water Damage Restoration takes hidden leak calls across Bernalillo County. Phones are answered 24/7, and a local technician is sent as soon as one is free. Arrival times are not promised. The call taker asks where the damp spot or the soft area is, when the bill went up and whether the water meter moves when every fixture is off, because those answers show where to start looking.

Finding a hidden leak is a matter of readings and evidence, not guesswork. A technician uses moisture meters and an infrared camera to find the area that is wet, then follows the likely path of the water. The building is opened only where the readings call for it, and the repair of the pipe is done by a plumber.

Service area
Albuquerque & Bernalillo County
Availability
Phones answered 24/7

How do I know if I have a hidden leak?

A hidden leak often shows as a damp spot that does not dry, a water bill that rises without a change in use, a soft area in the floor or wall, or a musty smell in one place. A meter that moves with every fixture off is a clear sign that water is escaping somewhere in the building.

Check the water meter before and after a period when no water is used. Record the reading, wait for a set time with all fixtures and appliances off and check again. A change means water is moving through the meter and out of the building.

Look at the floor and the lower parts of the walls in each room. A patch that is cooler than the rest, or a spot that stays damp, is worth reporting, because the leak is often under the floor or inside the wall where the surface shows only the first sign.

Can a hidden leak be found without opening the wall?

Sometimes the leak can be located from readings and the water path, but often the wall or the floor must be opened to reach the pipe. The technician uses the least invasive method first, and opens only the area that the readings point to.

Moisture meters and an infrared camera can show where the water is without any opening. The results are only a guide, and they are confirmed with a reading inside the material where possible. Where a reading is high and the source is not clear, a small opening is made.

Opening a wall is not a decision made lightly, and the technician explains the reason before it is done. The opening is made as small as the readings allow, and it is closed by the trade that does that work once the materials are dry.

What happens to the floor or the wall after a leak is found?

The wet materials around the leak are dried to the goal set at the start, and materials that have lost their strength are removed. The opening is closed only when the readings show the materials are dry, and the repair of the finish is done by the trade that does it.

The drying is recorded room by room, with the readings for each wet material. The record lists the materials that were removed and the ones that were kept, so the repair can be planned on materials that are proven dry.

A floor or wall that looks finished is not always dry inside. The readings are the way to tell, and they are kept for the repair and for any later question about the damage.

Who repairs the leaking pipe?

A plumber repairs the pipe or the drain, after the technician has located the leak and exposed it. The technician does not repair plumbing, and the plumber decides the method of repair and the parts needed.

The plumber can see the leak once the opening is made, and the pipe is repaired or replaced at that point. The location of the leak is recorded so the plumber knows which part of the line to check and which fittings to inspect.

Ask the plumber to show you the repaired section before the opening is closed. A repair that is visible before the wall is covered is easier to check than one that is buried.

What does a hidden leak investigation cost?

This site does not publish prices. The cost of finding a hidden leak depends on how much of the building must be opened, how long the readings take and how much material must be dried and removed. The plumbing repair is a separate charge from the plumber.

The investigation is scoped on site, and the opening and the drying are explained before the work starts. A leak that is found in one place with a small opening costs less to dry than a leak that runs under a slab or through several rooms.

Ask for the scope in writing with the opening, the materials and the drying goal listed. That scope keeps the investigation, the drying and the plumbing repair as separate lines, which makes them easier to compare and to claim.

Warning signs

Signs you need hidden slab and wall leak detection

Do not dig, drill or cut into a wall, floor or slab to look for a leak without first checking for wires and pipes that may be behind it. Do not use a metal probe near an outlet or a wire. If you smell gas, leave the building and call the gas utility, because a leak in a gas line can look like a water problem. Keep children and pets away from openings and from any floor that is soft or cracked.

  • A damp or warm spot on a floor that does not dry, or a patch of floor that feels cool when the rest does not.
  • A water bill that rises without any change in use, or a water meter that keeps moving when every fixture is shut off.
  • Soft or bulging drywall, or paint that bubbles on a wall with no obvious source above it.
  • A floor covering that lifts, buckles or separates at a seam in one spot.
  • The sound of running water inside a wall when no fixture is open.
  • A musty smell in one room or along one wall that does not go away when the room is aired.
  • Mold or a dark stain that appears at the base of a wall or on a baseboard, with no leak visible.
Our process

How our hidden slab and wall leak detection visit works

  1. Stop the water use and check the meter

    The homeowner is asked to shut off the fixtures and appliances that use water, and to note whether the water meter still moves. A meter that keeps moving points to a leak that is running somewhere in the building. The reading is written down and given to the technician as a starting point.

  2. Take moisture readings across the area

    The technician uses moisture meters on the surface and inside the materials where the meter can reach, and checks the readings against a dry reference from a sound part of the building. An infrared camera can show temperature differences on a wall or a floor that suggest a wet area, and the camera result is confirmed by a reading.

  3. Trace the likely path

    The wet area is followed back along the framing and the floor toward the likely source. The path tells the technician which pipe or drain is most likely to be leaking and which part of the building must be opened to reach it. The path is written on the sketch so that the opening can be planned.

  4. Open the building only where needed

    A small section of drywall, flooring or a cabinet base is opened at the point the readings and the path point to. The opening is made as small as possible, and the pipe or drain is exposed so that a plumber can see the leak. Nothing more is opened than the readings require.

  5. Dry the area and hand off the repair

    Once the source is confirmed and stopped, the wet materials around it are dried to the goal set at the start, and the readings are recorded. The plumber repairs the pipe or drain, and the opening is closed only after the materials read dry.

Options

Types and options for hidden slab and wall leak detection

A leak under a slab

A supply line or drain that runs under a concrete slab can leak into the soil and the subfloor without showing on the floor above. The sign is often a warm or damp spot, a rising bill or a crack in the floor covering. The technician checks the readings and the water meter, and the plumber decides how the pipe is reached.

A leak inside a wall

A supply line or a drain inside a wall can soak the drywall and the framing behind a single panel. The wall is opened where the readings are highest, and the leak is located before the wall is closed. The leak is repaired by a plumber, and the cavity is dried from the open section.

A leak in a floor cavity

A line that runs through a floor framing or a crawl space can leak onto the subfloor and into the room below. The floor is opened at the place the water is found, and the joist space is checked for water that has run along the framing. The repair is planned from the opening, not from a guess at the route.

A leak at a fitting or a valve

A fitting or valve that has loosened can leak a small amount for a long time. The water may show only as a damp spot at the base of a wall or in a cabinet. The fitting is found, shut or isolated, and the wet materials around it are dried.

Job stories

Typical jobs for hidden slab and wall leak detection

Typical job
Illustration: A rising water bill leads to a leak inside a wall

A rising water bill leads to a leak inside a wall

What homeowners notice
A typical homeowner sees the water bill rise with no change in use, and then notices a soft patch on the drywall at the base of a bathroom wall. Nothing is visible on the surface.
What we do
The homeowner is asked to shut off every fixture and to note the water meter reading, which keeps moving. Moisture readings and an infrared camera show the wet area behind the wall. The wall is opened at the place the readings are highest, the supply pipe is exposed and the plumber repairs the joint. The cavity is dried from the opening.
What to expect
The leak is repaired, the cavity is dried to the recorded goal, and the wall is closed once the readings confirm it is dry. The meter readings and the record are kept with the job.

5 to 7 hours typical visit

Skip the guesswork. Call for a straight answer.

Tell us what's happening and we'll tell you honestly whether it's a quick fix, and what hidden slab and wall leak detection should cost.

Bernalillo County

Why hidden slab and wall leak detection is different in Bernalillo County and the towns around it

Hidden leaks in Albuquerque are often found through the water bill and the water meter, because the water runs out of sight for a long time before it shows in a room. A rise in use with no change in the household is the clue that starts the search.

Homes in Bernalillo County sit on ground that changes from one site to the next, and water that escapes under a slab or into the ground can move a long way before it shows. The technician uses readings across the building rather than a single spot, because the water may appear far from the leak.

A flood or a storm can also reach a slab or a crawl space and hide a leak. Water from outside can mix with a supply leak, and the readings are taken after the storm water has been removed, so the source of the wet readings is not confused with the storm.

Related
FAQ

Hidden Slab and Wall Leak Detection FAQs

How much can a hidden leak add to my water bill?

The cost of a leak depends on how much water is escaping and how long it runs, so no figure is given here. A bill that rises without a change in use is the sign to look for. The technician can check the meter and advise on whether a leak is the likely cause.

Why does a leak under the floor show up as a warm spot?

Water under a floor can change the temperature of the surface above it, and a warm or cool patch can be a sign that a pipe is running close to the floor. An infrared camera can show the difference, and a moisture reading confirms it. A patch is not always a leak, so the readings are checked before the floor is opened.

Will the slab need to be cut?

The slab is opened only when the readings and the water path show the leak is under it and cannot be reached any other way. The plumber decides how the pipe is repaired, and any opening is closed and finished by the trade that does that work.

Can I just watch the meter instead of calling someone?

Watching the meter can confirm a leak, and it is a useful first step. It does not show where the leak is or what has been damaged, and the wet materials are the job of the technician. Call once the meter confirms the water is running with every fixture off.

Is a hidden leak covered by insurance?

That depends on the policy and the cause of the leak, and this site cannot say what a policy covers. Many policies treat a leak that has run for a long time differently from a sudden failure. Keep the meter readings and the record of the opening and ask the insurer.

How long does the drying take after a hidden leak?

The drying runs until the materials read at the goal set at the start. A leak that was found quickly and in one wall may take days. A leak under a slab or through several rooms can take longer, and the technician records the readings so the progress is visible.

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