ASL PLUMBING
ASLA leak you cannot see is the most expensive kind. Hidden water leaks quietly damage your foundation, floors and walls for weeks or months before you ever notice a stain, a warm spot or a jump in your water bill. By the time the evidence shows up, the repair is often far larger than the leak itself.
ASL Plumbing uses professional electronic and thermal leak detection to find the exact source of a leak inside walls, beneath concrete slabs and underground, so we open only the one spot that actually needs repair instead of cutting into your home to hunt for it. We serve all of Orange County, and leak detection is one of the calls our crews handle most, especially across older South County neighborhoods like Lake Forest and Laguna Beach.
Types of leaks we detect and repair
Slab leaks
A slab leak is a leak in the copper water lines running through or beneath your concrete foundation. They are especially common in Orange County because most homes sit on slab-on-grade foundations, and our expansive clay soil flexes the slab through wet and dry seasons until the pipe cracks or wears through. Warm spots on the floor, a running-water sound with everything off, or an unexplained hot-water bill increase often point to a slab leak.
Pinhole leaks in copper
Orange County's hard water, roughly 8 to 19 grains per gallon, slowly corrodes copper supply lines from the inside. In homes built from the mid-1980s through 2000, those original lines are now old enough that tiny pinhole leaks begin to form, often inside walls where they cause damage before they are found. One pinhole is frequently a sign that more are coming as the whole run reaches the end of its life.
Underground and main line leaks
Leaks in the service line between your water meter and the house, or in irrigation and yard lines, often show up as soggy patches, unusually green spots in the lawn, a spinning water meter, or a drop in pressure. Locating these precisely avoids digging up an entire yard to find one break.
Pressure-side vs drain-side leaks
Pressure-side leaks are on your pressurized supply lines and waste water continuously, so they drive up bills fast. Drain-side leaks release water only when a fixture is used, so they are sneakier and often show up as damage rather than a bill spike. We test for both and identify which system is leaking.
Fixture, valve and connection leaks
Slow leaks at faucets, toilet seals, shut-off valves, supply-line connections and hose bibbs waste water and invite mold if left alone. These are the most common everyday leaks and usually the least expensive to fix once found.
Water heater and appliance leaks
Moisture at the base of a water heater, or leaks at the connections to a dishwasher, washing machine or refrigerator line, can mimic a plumbing leak. We trace the water to its true source rather than guessing.
How we find the leak, without tearing your home apart
Electronic acoustic detection
Sensitive listening equipment amplifies the sound of water escaping a pressurized line, letting us pinpoint a leak through concrete, tile and drywall. This is the core tool for slab and in-wall leaks.
Thermal imaging
An infrared camera reveals the temperature differences a leak creates, which is especially effective for hot-water slab leaks and moisture spreading behind walls or under floors.
Pressure testing
By isolating sections of your plumbing and watching for pressure loss, we confirm whether a leak exists and narrow down which line and which side of the system is involved before we open anything.
Video camera inspection
For drain and sewer-side leaks, a camera sent down the line shows cracks, offsets and root intrusion directly, so the repair targets the exact fault.
Signs you may have a hidden leak
Any one of these is worth a detection visit. Two or more together usually means a leak is already doing damage:
- An unexplained jump in your water bill
- The sound of running water when everything is turned off
- Warm or hot spots on the floor (a classic slab-leak sign)
- Low or dropping water pressure
- A musty smell, or mold and mildew returning after cleaning
- Cracks in flooring or walls, or floors that feel damp or lifted
- A water meter that keeps moving with all fixtures off
- Unusually green or soggy patches in the yard
Why catching it early matters
A hidden leak rarely stays small. Water finds its way into your foundation, subfloor, drywall and framing, and within weeks it can turn a simple pipe repair into a project involving flooring, cabinetry and mold remediation. Prolonged moisture is also a health issue, feeding mold that affects indoor air quality. There is an insurance angle too: many policies help with sudden resulting damage but not with a leak that was neglected, and some deny claims for damage that built up over time. The single most cost-effective thing you can do is find and fix a leak while it is still just a leak.
How our leak detection & repair works
We start with your symptoms, then use acoustic listening, thermal imaging and pressure testing to locate the leak precisely, through concrete, walls or underground, with no demolition to find it. A typical detection visit takes one to two hours.
We show you exactly what we found and where, explain your repair options in plain language, and give you a firm written price before any work begins. Estimates are free.
We complete the agreed repair, whether that is a spot fix, a reroute or a repipe, then confirm the leak is gone and the system holds pressure. Many repairs are finished the same day, and we guarantee our work.
Your repair options once we find it
Spot repair
If the leak is isolated and the surrounding pipe is otherwise sound, we repair the single affected section. This is the least invasive and least expensive option when it is appropriate.
Reroute the line
For a slab leak on a line that is likely to fail again, rerouting the run above the slab avoids repeatedly opening your foundation and prevents future slab leaks on that line.
Repipe
When a leak is one symptom of piping that is failing throughout, for example aging copper reaching the end of its life across the home, a partial or whole-house repipe solves the root cause rather than chasing leak after leak. We only recommend this when the evidence supports it.
What affects the cost of leak detection and repair
Every leak is different, so the honest answer is that the price depends on the specifics, which is exactly why our onsite estimate is free. The main factors are the location and accessibility of the leak (a leak under a slab or inside a wall takes more work to reach than one at an exposed fixture), the type of repair needed once it is found (a spot repair costs far less than a reroute or repipe), and whether the surrounding piping is sound or itself failing. We give you a firm, written price and your options before any work begins, with no pressure to choose the biggest fix.
Leak Detection & Repair in Orange County
Slab leaks are more common in Orange County than almost anywhere in the country, and the reason is a specific local combination: aging copper supply lines, hard water treated with chloramines that corrodes those lines from the inside, and expansive clay soil that shifts the slab through the seasons. Older South County homes are especially prone to it, which is exactly the kind of call our crews handle regularly across Lake Forest, Laguna Beach and the surrounding cities. Because we are a local Lake Forest company, we know which neighborhoods and housing eras tend to have which problems, and we can usually be at your door quickly when water is where it should not be.