DG Plumbing & RooterSlab Leak SpecialistsBefore anyone opens a foundation, it is worth proving there is a leak and knowing which line it is on. We isolate the hot and cold sides separately, put them under pressure and watch the gauge โ a line that holds is not the problem, and a line that drops is.
$150โ$400
Detection, quoted upfront
24/7
Emergency dispatch
CSLB #1086844
Licensed & insured
Since 2022
Southern California local
4.9 / 5.0 across 500+ customers served since 2022.
DG Plumbing responded promptly to our emergency call. They quickly identified the issue with our burst pipe and had it fixed before any major damage occurred. Their technician was professional, knowledgeable, and cleaned up perfectly after the job. Highly recommend their services to anyone in Southern California needing reliable plumbing help!
Service to fix my garbage disposal was impeccable. Dennis's demeanor was extremely professional and pleasant. He arrived within half an hour of the 4 hour window, took care of business in under 10 min, and left the area cleaner than when he arrived. Thank you!
DG Plumbing & Rooter was absolutely wonderful to work with. The plumber was friendly, efficient, and knowledgeable. He arrived on time, quickly identified the issue, and handled it with accuracy and care. What could have been a very stressful situation turned into a surprisingly pleasant experience thanks to his professionalism and calm demeanor. I highly recommend DG Plumbing & Rooter to anyone in the Antelope Valley area who wants reliable, honest, and expert service.
We close the system off from the meter, bring it up to a known pressure and watch the gauge over a set period. Water is effectively incompressible, so a sealed line that is intact holds its reading almost indefinitely. A reading that decays means water is going somewhere it should not. It is the closest thing to a yes-or-no answer in this trade, and it is cheap to run.
Testing the whole system at once tells you there is a leak but not where to start looking. Isolating the hot and cold sides and testing them separately halves the search immediately, and it frequently settles the question on its own โ a hot side that decays while the cold side holds steady points straight at the recirculating loop under the slab, which is where most of the failures we see across Southern California actually are.
Sometimes both sides hold. That is a genuinely useful result: it means the water loss is not a pressurised supply leak, and the money would be wasted opening the slab. At that point we are looking at a drain or sewer line, an irrigation leak outside, a running toilet or a meter fault โ and we will tell you that rather than keep testing a system that has already passed.
Pressure testing is the confirmation step, not the locator โ it proves a leak exists and narrows it to a side, then acoustic and thermal work find the point. Running it first stops us from chasing a thermal artefact across a floor, and running it last verifies the repair actually held before the concrete goes back down.
Detection is $150โ$400, quoted before we start, and the repair is a separate quote given after the diagnosis. Tell us what you are seeing.
Call (661) 531-9014Sensitive ground microphones identify the sound of water escaping a pressurised pipe.
Infrared cameras detect the temperature variation a hot-water leak leaves in the slab.
Surgical slab access to repair a single pinhole copper failure in place.
Bypass failing sub-floor copper entirely by routing a new line overhead.
Immediate water main shutoff and damage mitigation, any hour.
Not sure which applies? Start with slab leak detection โ the diagnosis decides the repair.
Contact DG Plumbing & Rooter for precision acoustic diagnostic dispatch across Southern California. Detection is $150โ$400 and quoted before we start.
Call (661) 531-9014 Now