Leak detection
Finding a leak you can't see, in a wall, under a slab or underground, without tearing things apart to guess.
Call 281-467-7295What leak detection is
Plumbing leaks don't always announce themselves. Pipes run inside walls, beneath concrete slabs and underground between the house and the street, so water can escape for a long time before anything shows. Leak detection is the process plumbers use to pinpoint where water is escaping, so the repair can be targeted at the actual problem instead of opening up large areas.
It relies on a few methods used alone or together: pressure testing, acoustic listening equipment and camera inspection.
Signs of a hidden leak
| What you notice | Why it can point to a leak |
|---|---|
| Unexplained high water bill | Usage climbs even though your habits haven't changed. |
| Damp spots | Wet patches on walls, ceilings or floors, or soggy ground outside, with no obvious source. |
| Low water pressure | Water escaping before it reaches your fixtures. |
| Sound of running water | Hissing or running sounds when every fixture is off. |
How leaks are found
Pressure testing
The line is isolated and pressurized. If the pressure drops, there is a leak somewhere in that section.
Acoustic listening
Sensitive listening equipment picks up the sound of escaping water through walls, slabs and soil to narrow down the location.
Camera inspection
A small camera is fed into the line so the plumber can see cracks, breaks or other damage directly.
What to expect during a visit
- The plumber asks what you've noticed: bills, damp areas, pressure changes, sounds.
- They check visible fixtures and lines, then use pressure testing, listening equipment or a camera as the situation calls for.
- Once the leak is located, they explain what they found and the repair options.
Finding a leak early matters: the longer water escapes, the more it can soak into framing, flooring and soil, so prompt detection helps limit water damage and repair scope.
Spotted a sign? Don't wait on it.
Leak detection FAQ
Can a leak be found without opening walls?
Often, yes. Pressure testing, acoustic listening and camera inspection help pinpoint the location first so any opening is limited to where it's needed.
Can leaks under a slab or underground be located?
Yes, listening equipment and camera inspection are used for lines in slabs and underground.
My water bill went up. Is it a leak?
It can be. A bill that climbs without a change in use is one of the common signs, and a plumber can check.