Acoustic leak detection in Citrus Heights finds pressurized leaks by sound. Listening gear and ultrasonic sensors hear water escaping a pipe under a slab or yard line, so we can trace it to its loudest point and mark it, with no digging to look.
What acoustic listening hears
Pressurized water makes a distinct sound as it escapes a small opening: a hiss, a rush, or a steady hum through soil and concrete. Ground microphones pick that sound up at the surface. A sonic listening device sharpens it, and the operator moves along the line until the sound is loudest. That loudest point is usually right above the leak. That is the core of acoustic leak detection: follow the sound to its loudest point.
Can acoustic listening find a leak under concrete?
Yes, when the line holds pressure. Sound travels through concrete and soil, so a slab leak under a floor still sings to a surface microphone. The sound is fainter through thick concrete, so we pair listening with a pressure test to confirm which run is losing water. Thicker slabs and deeper lines need a longer listen at each point, and the operator moves the microphone in smaller steps until the sound peaks.
How an acoustic visit works
An acoustic leak detection visit starts with isolation. We shut off fixtures zone by zone and watch the meter, so we know which run is losing water before anyone listens. Then we listen at fixtures, hose bibs, and the meter, and mark where the sound runs strongest.
For quiet leaks, we switch to ultrasonic sensors. These pick up higher-frequency sound that human ears miss, which helps on small pinhole leaks and plastic lines that do not carry sound as far. A correlator logger can also compare two sensors clamped at different access points and point to the leak between them. That is what ultrasonic leak detection means in practice: the same listening method, tuned to higher frequencies.
When the sound peaks at one spot, we mark it and test again to confirm. You get a report that names the leak location and the listening results, so your plumber can open only that point for the repair. No concrete breaks during listening, and no walls open.
What is the difference between acoustic and ultrasonic leak detection?
They are one method family, not two services. Acoustic listening uses microphones for the sound you can hear. Ultrasonic sensors pick up higher-frequency sound above human hearing. Both listen for the same escaping water. One visit uses whichever fits the pipe and the leak.
Where acoustic listening works best
Acoustic leak detection works best on pressurized supply lines: slab lines, water mains, and yard lines. It works less well where water does not hold pressure. Sewer lines carry water without pressure, so sound does not travel the same way there. For drains, a camera inspection fits better than listening. When sound alone does not pin a slab leak down, a thermal camera can show the warm line and confirm the spot.
Can acoustic gear find a sewer leak?
Acoustic leak detection is built for supply lines, not drains. Sewer water does not hold pressure, so there is no steady hiss to follow. A camera run through the line shows cracks, root intrusion, and breaks instead. If listening points to a drain area, we say so plainly and point you to a camera check.
What can confuse acoustic listening
Sound is honest, but it is not always clean. Street noise, running appliances, and water moving in a neighboring line can all add sound that is not the leak. The operator listens for the sound that stays steady when other sources stop, and moves along the line to compare volume at each point. Listening at night, when the house is quiet, often gives the cleanest read.
More than one leak can confuse the picture too. Two leaks on one run sound like one broad loud area, not two sharp points. Isolation helps here: shutting off zones one at a time splits the run so each leak sings on its own. Plastic lines add another wrinkle. Sound travels less far in plastic than in copper or galvanized pipe, so the loudest point sits closer to the listening point and the operator works in shorter steps.
Deep lines and thick concrete also weaken sound. A yard line buried deep under soil may sound faint at the surface, and a slab leak under a thickened footing may barely sing at all. In those cases listening narrows the zone and pressure testing confirms the run. An acoustic leak detection visit that ends with a zone, not a point, still helps: it tells your plumber where to start, and the report says plainly how tight the mark is.
The report always states what the listening proved and what it did not. If background noise or a second leak left the mark wider than a point, the report says so. A wide mark is still useful: it rules out the rest of the run and keeps the repair opening small.
Where we use it
We use acoustic leak detection across Citrus Heights and the Sac area, including these neighborhoods:
- Birdcage Heights
- Sylvan Old Auburn Road
- Sunrise Ranch
- Stock Ranch
- Northwest Citrus Heights
- Cirby Ranch
- Chase
- Arcade Creek
- Park Oaks
- Sunrise Oaks
Yard lines, slab lines, and water mains all carry pressure, so all three answer to sound. If sound is the right tool, acoustic leak detection turns a hidden hiss into a marked spot. If a full property check fits better than a single-method visit, a full property inspection covers the whole system in one trip.
Frequently asked questions
How long does acoustic leak detection take?
Usually a few hours for a standard home. Listening moves zone by zone, and quiet leaks take longer since each sensor placement needs a clean read. The marked spot and the report come with the visit.
Does acoustic listening work through tile and concrete?
Yes, when the line holds pressure. Sound travels through tile, concrete, and soil. Thick concrete and deep lines weaken the sound, so we pair listening with a pressure test to confirm the run.
Can acoustic gear hear a very small leak?
Often yes. Ultrasonic sensors pick up high-frequency sound from pinhole leaks that standard microphones miss. Very slow seepage with no pressure behind it may not sing loud enough, and then other tests take over.
Do I need to turn off my water for acoustic listening?
For parts of it, yes. Isolation tests shut off zones one at a time so the sound points to one run. The main stays on for the listening itself, since pressurized water makes the sound we follow.
Is acoustic leak detection noisy for neighbors?
No. The gear listens; it does not send sound into the ground. Correlator sensors clamp on quietly, and no digging happens during listening.
Does acoustic leak detection include the repair?
No. AquaTrace detects leaks only. Listening ends with a marked spot and a report. Hand the report to your plumber, and the repair starts at the right spot.
Can acoustic listening find a leak in a plastic pipe?
Yes, with shorter steps. Sound travels less far in plastic than in metal pipe, so the operator listens at closer points along the run. Ultrasonic sensors help here, since they catch higher frequencies that carry better on plastic. Very quiet plastic leaks may still need a pressure test to confirm the run.
Think you have a leak?
Call AquaTrace Leak Detection to describe what you are seeing in Citrus Heights and get a plan to find it.
Call (123) 456-7890Related services
- Water Leak Detection
- Slab Leak Detection
- Pool and Spa Leak Detection
- Sewer and Drain Line Leak Detection
- Water Main and Service Line Leak Detection
- Irrigation and Sprinkler Leak Detection
- Commercial Leak Detection
- High Water Bill Leak Investigation
- Leak Inspection
- Thermal Imaging Leak Detection
Last updated: October 26, 2026.