Where is the water coming from? That is the only question that matters when something is wet, and it is the question this page exists to answer. Plumbing leak detection is the umbrella over everything we do: supply lines under pressure, drains that only leak in use, fixtures that weep at their seals, and the buried runs between meter and house. If you already know your problem lives under the slab or in the sewer lateral, those dedicated pages go deeper. If all you know is that water is showing up where it should not, start here, or skip the reading and call (424) 544-0235.
Three leak families, three different hunts
Pressurized supply leaks run whenever the water is on. They show up on the meter, drive up bills, and range from failures under the slab to pinholes in wall copper to a split service line in the yard. These are found by isolation and pressure testing, then pinpointed acoustically or thermally.
Drain leaks only lose water when a fixture runs, so the meter stays still and bills stay flat while a ceiling quietly rots below a shower. These are found by controlled fill-and-drain tests, dye tracing, and camera inspection of the lines themselves.
Fixture and appliance leaks live at the connection points: angle stops, supply hoses, wax rings, faucet bodies, dishwasher loops. Small parts, outsized damage, because they sit inside cabinets and walls where a slow drip has privacy.
Built for Compton's three plumbing generations
An 1888 city carries every pipe material ever sold in California, and each fails on its own schedule. Pre-1940 blocks around Downtown and parts of Richland Farms still run galvanized steel supply lines that rust shut and then rust through, alongside cast iron drains at the end of their life. The post-war tracts that built out the 90220, 90221, and 90222 carry original copper, now 60 to 80 years old and pitting in the city's very hard well water. The newer infill near Cressey Park and Esprit runs PEX and PVC, which shrug off corrosion but fail at fittings, crimp rings, and solvent joints. We stock parts and carry detection methods for all three generations, because a Tuesday here can include all of them. Homes across the 90220 around our own base keep that mix in front of us daily.
Homes, rentals, and storefronts alike
Most calls are owner-occupied houses, and our residential service is tuned for them: shoe covers, small openings, straight talk. But the same crews handle duplexes and fourplexes with shared supply trees, and commercial properties along Long Beach Boulevard and Atlantic Avenue where a leak means lost business hours, not just a wet floor. The method does not change with the building type. Meter test, isolate, pinpoint, quote in writing, repair through the smallest opening the job allows.
The toolkit that finds them all
Every truck carries the full detection stack, because the leak family is rarely known until testing starts. Acoustic amplification hears pressurized escapes through slab and soil. Thermal imaging maps hot-side failures and wet building materials through paint. Tracer gas finds the leaks too small or too deep to hear. Inspection cameras run the drains, sondes locate them from the surface, and calibrated pressure gauges prove which zones hold and which do not. Moisture meters bound the damage so the repair opening lands where the water is, not where the stain happens to show. The instruments are not the service, but they are why the openings we cut are measured in hand-widths instead of walls.
What calling early buys you
Every leak on this page gets more expensive by the week. Supply leaks compound on the bill and in the soil. Drain leaks convert framing into a mold substrate. Fixture drips destroy the cabinet first and the floor second. The diagnostic visit is priced flat and quoted when you call, and most of Compton is within an hour of our trucks at any hour of the day. The water is already moving. The only variable you control is when someone finds it.
Not sure which kind of leak you have?Dispatch answers 24/7. Written quote before any work.
✆ (424) 544-0235General plumbing leak questions in Compton
How do I check for a leak before calling anyone?
Shut every fixture and appliance, then watch the small flow indicator on your meter for five minutes. Movement means a pressurized leak. No movement but recurring moisture points to a drain or fixture leak that only runs in use. Either result is useful information to give our dispatcher.
Do you charge to come out and diagnose?
There is a flat diagnostic fee, quoted on the phone before we roll, and it is credited toward the repair when you proceed with us. No percentage games and no surprise line items.
Can one visit cover several small leaks?
Yes, and it is the efficient way to do it. A single diagnostic pass can test the whole supply system, check fixtures, and camera a suspect drain, then the quote itemizes each fix so you choose what to do now and what to schedule.
Are old galvanized pipes worth repairing?
Individually, a galvanized failure can be patched, but the metal around the repair is usually as far gone as the piece removed. We repair when it is honest and tell you plainly when the run is at end of life, with replacement priced alongside.