Supply lines inside walls
A pinhole or split in a supply line running through a wall. The water runs down the stud bay and shows at the bottom of the wall or on the floor below.
Serving Buncombe County
Hidden Water Leak Detection in Asheville, NC
Finding the leaks behind walls, under floors and in crawl spaces that show as a stain, a smell or a rising water bill, across Asheville and Buncombe County.
- Phones answered 24/7
- Basements, crawl spaces, ice-split pipes
- Mountain valleys and river flooding
Get a fast quote
Fastest: call (833) 490-5225. Or send this and we call you back.
Hidden Leaks
Hidden Leak Detection: what it covers
Quick answer
Hidden leak detection is the search for water that is leaking inside the structure, behind a wall, under a floor or in a crawl space, where it cannot be seen. In Asheville a thaw after a freeze or a wet season can leave a slow leak running for weeks before a stain appears. The work narrows the search with readings and opens the smallest area that will show the source.
A hidden leak announces itself in indirect ways. A water bill that climbs without a change in use, a floor that is cooler in one spot, a wall that is damp at the base or a smell that comes and goes are the usual first signs. None of them shows where the water is, and guessing is how walls get opened in the wrong place.
Detection works from the outside in. The crew starts with readings across the suspected area, then checks the lines and fixtures that could feed it, then opens the smallest section that will confirm the source. The aim is to find the leak with the least damage to the finishes, and to record where it was.
- Service area
- Asheville & Buncombe County
- Availability
- Phones answered 24/7
- Phone
- (833) 490-5225
Warning signs
Signs you need hidden leak detection
Do not open a wall or floor that might carry electrical wiring without checking the layout first. Shut off the power to any area before cutting. Wear eye protection and a dust mask when opening finishes. If you smell gas, leave the building and call the utility from outside.
- A water meter that keeps moving when every fixture in the house is closed
- A floor that is cooler or spongier in one spot than the rest of the room
- A wall that is damp at the base, or paint that lifts in a line along the wall
- A musty smell that comes and goes near a bathroom, kitchen or laundry wall
- A water bill that has risen with no change in use
- Cracks in the plaster or the grout that open and close with the weather
Our process
How our hidden leak detection visit works
Check the meter and the fixtures
The water meter is read with all fixtures closed. If it moves, the leak is confirmed on the supply side and the search is narrowed to the lines in the house.
Take readings across the suspected area
Moisture readings are taken along the walls, under the floor and in the crawl space to map the wet area. The pattern shows which direction the water is travelling.
Test the lines that could feed the area
Pressure tests on the lines or a camera in the drain can show a split or a joint that is leaking. Each test is recorded, so the result can be repeated.
Open the smallest section needed
A small opening is made in the wall or floor where the readings and the tests point. Access is planned so the repair can be done through the same opening.
Confirm, repair and dry
Once the source is confirmed, a licensed plumber makes the repair, and the crew dries the area and logs the readings until the materials are at standard.
Will a wall have to be opened to find the leak?
Sometimes, but the aim is to open as little as possible. Readings and pressure tests narrow the search, and a small opening is made where the evidence points. A camera in a drain can often find a problem without opening anything.
Opening a wall in the wrong place is costly and disruptive. The crew will explain the plan before any cutting begins, and will show the readings that point to the chosen spot.
Once the leak is found, the opening is kept as small as the repair allows. The patch can be made by the repair trade, and the moisture record shows that the area is dry before it is closed.
Can I check for a leak myself?
Yes, with simple steps. Read the water meter with all fixtures off, check the water bill, look under sinks and behind toilets and inspect the base of walls near plumbing. These checks find many leaks, but they do not replace readings and tests when the source is not obvious.
Keep the checks simple and written down. A meter that moves with the house shut is a clear sign of a leak on the supply side. A damp patch that is getting larger is a sign the source is still active.
If the checks point to a problem, call a crew before opening any finish. Guessing where a leak is can cause a lot of damage that was not needed.
What if the search finds more than one leak?
Each leak is recorded and repaired in turn, and the drying is planned around the largest source first. Several small leaks often add up to more damage than one big one, so the search continues until the readings stop rising.
A house with an old supply system can have more than one slow leak in different walls. The crew records each source, marks it on the plan and tells the plumber which lines were tested. Repairs are scheduled so that the drying is not reset by a later opening.
Ask for the list of tested lines and the results. That list is useful for the plumber, for the insurer and for any future buyer who wants to know what has been checked.
Options
Types and options for hidden leak detection
Slab and crawl-space lines
A leak in a line under the floor or in the crawl space. It can wet the subfloor for a long time, and the first sign is often a soft or cool spot on the floor above.
Drain and sewer leaks
A leak in a drain line that is hidden behind a wall or under a floor. The water is usually grey and carries an odour, and the readings may be higher around the drain than around the supply.
Buncombe County
Why hidden leak detection is different in Western North Carolina
Seasonal wetting in this region can make a slow leak look like a seep from the ground. The readings and the water meter tell the two apart, and the difference matters for the repair.
Houses built on slopes often have plumbing that runs through the crawl space, where a leak can run downhill for a long way before it shows. The search follows the slope as well as the wall.
A leak that followed an ice storm is often found weeks later, when the thaw has passed and a stain appears in an unexpected place. Keep a note of the storm date, because it helps the crew narrow the search.
One call and it gets handled.
A crew is dispatched as fast as one is available, and you approve the estimate before any work starts.
Where we work
Hidden Leak Detection across Buncombe County
- Hidden Leaks in Asheville
- Hidden Leaks in Weaverville
- Hidden Leaks in Swannanoa
- Hidden Leaks in Skyland
- Hidden Leaks in Alexander
- Hidden Leaks in Arden
- Hidden Leaks in Fairview
- Hidden Leaks in Candler
- Hidden Leaks in Leicester
- Hidden Leaks in Fletcher
- Hidden Leaks in Enka
- Hidden Leaks in Barnardsville
- Hidden Leaks in Montreat
- Hidden Leaks in Ridgecrest
- Hidden Leaks in Gerton
- Hidden Leaks in Black Mountain
- Hidden Leaks in Mills River
- Hidden Leaks in Naples
- Hidden Leaks in Mars Hill
- Hidden Leaks in Bat Cave
- Hidden Leaks in Horse Shoe
- Hidden Leaks in Canton
- Hidden Leaks in Edneyville
- Hidden Leaks in Hendersonville
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Related
Related services
Crawl Space Water Damage
Pumping, drying and measuring crawl spaces under Asheville homes, including the joists, subfloor and insulation above them.
Frozen and Burst Pipe Damage
Stopping, extracting and drying water from pipes that split in the freeze and leaked on the thaw, across Asheville and Buncombe County.
Water Heater and Appliance Leaks
Water from heaters, washers, dishwashers and ice-damaged fixtures, cleaned up and dried in the rooms and crawl spaces they affect across Asheville and Buncombe County.
Mold After Water Damage
Assessing and cleaning mold that grows on wet framing, insulation and drywall after water damage across Asheville and Buncombe County.
FAQ
Hidden Leak Detection FAQs
How much does a leak search cost?
The price depends on the search and what it needs. The crew explains the approach and the scope before any work begins, and the figure is confirmed on site rather than given over the phone.
Can you find a leak without tearing up the walls?
Often, with readings and a camera in the drain or a pressure test on the line. When a wall must be opened, the opening is kept as small as possible.
Is the water bill a good sign of a leak?
Yes. A bill that rises without a change in use is a common first sign. Check the meter with all fixtures off to confirm before calling.
Could the damp be groundwater rather than a leak?
It can be, especially after a wet spell or a thaw. The readings and the meter test separate groundwater from a supply leak, and the crew will tell you which one it is.
Who repairs the leak once it is found?
A licensed plumber repairs the line. The restoration crew dries the area and records the readings, and the repair and the drying are scoped separately.
Do I need to do anything before the crew arrives?
Note the times you first noticed the damp, read the meter and photograph any stain. Clear the space near the suspected area so the crew can get in.