The short answer
Start with the Obvious
Before any high-tech gear comes into play, the pros look at the places you can see. They check under sinks, around toilets, behind appliances, and along baseboards for water stains, warping, or a musty smell. They also inspect your water heater and the visible pipes in your crawlspace or utility closet.
A simple check of your water meter can give a big clue. If the meter moves when all water is off, water is leaving the system somewhere. That tells the pros a leak exists, even if they cannot see it yet. From there, the search narrows down.
Listen for the Sound of Water
Water moving through a pipe makes a sound, and leaky pipes often hiss or whistle. Pros use listening discs and electronic acoustic detectors to hear the noise through floors and walls. They can often pinpoint a leak within a few feet by walking the property and listening carefully.
This method works well when the home is quiet. The pros may ask you to turn off the air conditioner and any running water. In a hot, dry climate, that can be uncomfortable for a short time, but it helps them hear the leak clearly.
- Listening discs placed on floors and walls
- Electronic acoustic detectors for pipes
- Turning off water and appliances for quiet
- Walking the perimeter to trace the sound
Use Moisture Meters
Moisture meters measure the dampness of wood, drywall, and concrete. The pros press the pins or sensors against surfaces to get a reading. High readings point to a leak behind that wall or under that floor. They can also track the spread of water, which helps find the source.
These meters are not magic. They read the surface, so the pros must interpret the numbers. A high reading in one spot and a lower one nearby can show the direction water is moving. This helps them decide where to open up a wall or floor, if needed.
Look with Thermal Cameras
Thermal cameras show temperature differences. A cold pipe leaking water often shows up as a cooler spot on a wall or floor, especially if the surrounding area is warmer. Pros scan rooms with the camera to find those anomalies. This works well for slab leaks and hidden pipe runs.
Thermal imaging is not always conclusive. Other things, like a draft or a recently used appliance, can create similar temperature patterns. So the pros combine thermal scans with moisture readings and listening to be sure. It is one tool in a larger process.
- Scanning walls and floors for cool spots
- Checking around pipe chases and risers
- Comparing thermal images to known water lines
- Using it alongside other detection methods
Confirm with a Test Hole
When the pros have a strong suspicion, they may drill a small test hole in the drywall or floor. This lets them see the actual pipe or the back of a wall. A tiny hole is much less invasive than tearing out a whole section. They can patch it easily if the leak is not there.
If the leak is found, the pros will discuss your options. That may involve repairing the pipe, cleaning up water damage, and drying out the area. If you live in Mesa, keep your shutoff valve location written down so you can act quickly in the future.
Talk to someone now
Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (480) 898-4279Frequently asked questions
How long does leak detection usually take?
It depends on the size of your home and how hidden the leak is. A simple leak near a fixture might take an hour. A slab leak behind concrete can take several hours. The pros work methodically to avoid unnecessary damage.
Can I find a hidden leak myself?
You can check for visible signs like stains, damp spots, or a running water meter. But finding a leak behind a wall or under a slab usually needs specialized tools. Pros have the training and equipment to locate it without tearing things apart.
Will leak detection damage my floors or walls?
Most detection methods are non-destructive. Moisture meters and thermal cameras leave no marks. In some cases, a small test hole is needed to confirm the leak. The pros can patch that small hole easily. The goal is to minimize damage.