Leak Detection in Corona, CA — We Find Leaks Other Plumbers Cannot Locate
Corona Plumbing Pros provides professional water leak detection in Corona using acoustic listening equipment and infrared thermal imaging. We locate underground leaks, slab leaks, wall and ceiling leaks, and irrigation leaks — including leaks that another plumber has already tried and failed to find. Detection-only service available. Same-day including Sundays, C-36 licensed, written report after every detection.
Is Leak Detection Free? Here Is the Honest Answer
"Free leak detection in Corona" appears frequently in local searches. At Corona Plumbing Pros, leak detection is a paid professional service — typically $300 to $500 for a full residential inspection. Free leak detection is usually a tactic to get a plumber on-site and then upsell the repair. We charge honestly for detection and credit that cost toward the repair if you hire us. You can also use our detection-only service and take the written report to any contractor.
If we detect the leak and you choose us to do the repair, the detection cost is applied toward the repair invoice. You are not paying twice.
Call (951) 574-8995 — Same Day Including SundaysDetection Cost Credited to the Repair
If we detect the leak and you hire us to do the repair, the detection fee is credited toward the repair invoice. You are not paying for detection twice. You can also hire us for detection only and take the written report to any contractor.
Signs You Have a Water Leak in Your Corona Home
Most homeowners discover a leak from their water bill or meter, not from visible damage. By the time water appears on a floor or wall, the leak has usually been running for weeks or months. The most reliable indicator is a water meter that keeps moving after every fixture, appliance, and irrigation valve in the home is shut off.
Your Water Meter Is Running When Everything Is Off
"We shut everything off and it still runs." "The meter is running with the water off." To confirm: shut off every fixture, appliance, and irrigation valve. Look at the flow indicator — a small dial or triangle that spins when water is moving. If it moves with everything off, you have a leak. This is the most reliable self-test a homeowner can do.
Your Water Bill Spiked Without Explanation
"My water bill was like $507 all of a sudden last month." "The city told me I have a leak." A sudden water bill increase — especially $100 or more above your normal monthly amount — almost always means a leak. A letter or alert from Rancho Water or Corona Utilities saying you may have a leak is worth acting on the same week.
Visible Signs — Wet Yard, Weeds, or Seeping Floor
"There is a nice patch of weeds right above the line." "There was water coming out of the ground." "My kitchen has water coming from the floor." Patches of unusually green grass or fast-growing weeds in a dry yard often mark an underground water line leak. Water seeping up through a slab floor means the leak is below the foundation.
Nothing in the House Is Wet — But the Meter Keeps Running
"Nothing in the house is wet." This is the most unsettling situation — no visible damage, but the meter confirms a leak. Underground supply line leaks between the meter and the house often leave no visible sign for weeks. The water moves into the soil rather than into the structure. We find these leaks with acoustic equipment that does not require the leak to be visible.
How We Find Leaks in Corona Homes
We use two detection methods on every leak detection call — acoustic listening equipment and infrared thermal imaging. When combined with pressure testing to isolate pipe sections, they locate leaks that are invisible to the eye and inaudible without amplification.
Acoustic Listening Equipment
An acoustic amplifier places a contact sensor on the pipe or on the ground surface above a buried pipe. It amplifies the sound of water escaping under pressure to a level a plumber can hear through headphones. The technician moves the sensor along the pipe route until the signal peaks — that is the leak location.
"Do you guys have machines that can see leak detections in walls or underground?" — Yes. Acoustic listening equipment is what makes underground and in-wall leak location possible without destructive opening.
Infrared Thermal Imaging
A thermal camera detects temperature differences on surfaces that indicate moisture or water movement below. A cold water line leak makes the surrounding soil or slab colder. A hot water leak creates a warm zone. Thermal imaging is particularly effective for slab leaks, wet ceiling sections, and wall leaks where moisture has not yet appeared on the surface.
Pressure Testing
We isolate sections of the supply system and test for pressure loss. A drop in pressure over a timed period confirms a leak in that section and narrows the location before acoustic scanning begins. Pressure testing is especially useful when there are multiple possible leak sources — it rules out sections before we start moving sensors.
Accuracy: 6 to 12 Inches
"I've almost pinpointed it within 20 feet, but I just need somebody with the equipment." Our acoustic and thermal methods locate the leak to within 6 to 12 inches in most cases on a standard Corona residential property. We mark the ground or surface before recommending any cutting, excavation, or opening. You see exactly where we plan to work before we start.
Leak in Corona? We Detect Using Acoustic and Infrared Equipment — Same Day Including Sundays.
Written report after every detection. Detect-only or detect and repair — your choice.
Call (951) 574-8995Types of Water Leaks We Detect in Corona, CA
We locate all types of residential water leaks — underground supply lines, slab leaks, wall and ceiling leaks, attic leaks, and irrigation system failures. If water is moving in your pipe system, the acoustic sensor finds it.
Underground Water Line — Meter to House
The most common leak detection call in Corona. The leak is underground, invisible, and only discovered when the water bill increases or the meter keeps running after everything is shut off. We acoustic scan the route, pressure test to confirm the section, and pinpoint the location. After detection you get a written report and repair recommendation.
"We suspect it's from the meter to the house because we shut everything off and it still runs." "There was water coming out of the ground." — real calls, booked and paid.
Inside Supply Line
"When I cut off the outside, there was no leak. I turn on the water inside — there's a leak." This caller already isolated the problem to the inside supply system. We confirm the section and pinpoint the failure. Inside supply line leaks are sometimes above the slab, sometimes embedded in it, and sometimes inside a wall. Acoustic detection works for all three locations.
Slab Leak
A leak in the copper supply lines running through or beneath the concrete foundation. Acoustic listening and infrared thermal imaging locate the slab leak to within 6 to 12 inches before any concrete is opened. We give you written repair options — spot repair, pipe rerouting, or full repipe — after detection. For complete information, see our Slab Leak Repair page.
Wall and Ceiling Leak
"My kitchen ceiling is wet." "We've got a leak in our bathroom in the ceiling." Wall and ceiling leaks are detected with acoustic listening at the wall surface and infrared thermal imaging that shows moisture zones through drywall and plaster. We find the source before recommending that any wall be opened. Most wall leaks in Corona homes are supply line failures — fittings, solder joints, or flexible connectors — in copper systems now 30 to 50 years old.
Attic Water Line Leak
"I have a water leak in my attic." "I've got a towel under it in the attic right now." Some Corona homes run supply lines through the attic space — especially slab foundation homes where routing through interior walls is preferred to going through the slab. Attic leaks are emergency calls because water drips from the attic directly into the ceiling. We locate the failed connection and repair or reroute the line same-day.
Irrigation and Outdoor Leaks
"The only thing that's wet is my sprinklers." "When the irrigation valve is on, it's running really fast." Irrigation system leaks require pressure testing each zone section by section to isolate the failed area. Green patches of grass or fast-growing weeds in an otherwise dry yard often mark the leak location visually. We pressure test the irrigation system, isolate the failed zone, and locate the break point.
When Another Plumber Already Tried and Could Not Find It
"The plumber is not able to locate the area." — urgent, booked, paid. A plumber without acoustic and thermal detection equipment has to rely on visible signs only. When there are no visible signs, they cannot find the leak. We carry this equipment on every detection call. If the leak is in the pipe system and water is moving, the acoustic sensor finds it.
If you have already had a plumber out who could not locate the leak, call us. Bring any information they provided — where they looked, what they ruled out — and we start from there.
Pre-Sale Leak Detection for Corona Homes
"So I need somebody to come and take a look because the house is for sale." A pre-sale leak detection inspection identifies any active or suspected leaks before a home is listed or before close of escrow.
For sellers, finding and repairing a leak before listing eliminates a buyer objection and escrow complication. For buyers, a detection inspection on any pre-1995 Corona home is a reasonable precaution. We provide a written detection report that can be included in the disclosure package or used in escrow negotiations if a leak is found.
Detect Only or Detect and Repair — Your Choice
"I need to know the price to detect the leak. We're probably going to repair it ourselves." — booked, paid. We offer leak detection as a standalone service. After detection, you receive a written report with the leak location, the detection method, and our assessment. You can take that report to any contractor.
"I want you to do the job too, if you find the leak." — the more common outcome. Most homeowners who hire us for detection also hire us for repair because we already know exactly where the leak is, what caused it, and how to fix it. The repair quote is given in writing after detection and before any work begins.
How Much Does Leak Detection Cost in Corona, CA?
Leak detection in Corona typically costs $300 to $500 for a full residential inspection using acoustic and infrared methods. If we detect the leak and you hire us to repair it, the detection fee is credited toward the repair. You do not pay for detection twice.
| Service | Typical Range | Notes |
|---|---|---|
| Residential leak detection | $300 – $500 | Acoustic and infrared — written report |
| Slab leak detection | $300 – $500 | See slab leak repair page |
| Underground supply line detection | $300 – $500 | Meter to house |
| Wall or ceiling leak detection | $300 – $500 | Thermal imaging |
| Irrigation system pressure test | $200 – $400 | Section by section |
| Pre-sale leak inspection | $300 – $500 | Written disclosure report included |
Complex properties — large lots, unusual pipe routing, prior unsuccessful detection attempts — are discussed on the first call before we quote. We do not give a final price until we understand the property.
What We Cannot Help With
Out of Service Area
We serve Corona, Norco, Eastvale, Jurupa Valley, and adjacent communities. We do not travel to Las Vegas, Henderson, or other out-of-state markets.
Large Commercial and Resort Properties
Full leak surveys for shopping centers, resorts, or large multi-building commercial campuses are outside our scope.
Irrigation-Only Repair Service
We detect irrigation leaks and can refer you to an irrigation contractor for irrigation-specific repairs (solenoids, controllers, heads) if needed after we locate the leak.
Leak Detection Service Areas in Corona, CA
We serve all of Corona for water leak detection. Underground supply line leaks are most common in North Corona, Sierra Del Oro (92882), and Eagle Glen (92883) — neighborhoods with the oldest buried copper supply systems. California Meadows (92881) and Temescal Valley (92883) also generate regular leak detection calls. We serve all Corona ZIP codes — 92879, 92880, 92881, 92882, 92883 — as well as Norco (92860), Eastvale (92880), Jurupa Valley (91752), Home Gardens (92879), and nearby Riverside communities.
Leak Detection Questions Corona Homeowners Ask
Is leak detection free in Corona?
Leak detection at Corona Plumbing Pros is a paid professional service, typically $300 to $500. Free leak detection is usually a sales tactic to get a plumber on-site and then upsell the repair. We charge honestly for detection and credit that cost toward the repair if you hire us. You can also hire us for detection only and take the written report to any contractor.
How do I know if I have a water leak?
The most reliable indicator is a water meter that keeps moving after every fixture, appliance, and irrigation valve in the home is shut off. A water bill that increased by $100 or more with no change in usage is the second most common sign. Wet spots in the yard, fast-growing weeds above a supply line route, and water seeping through a slab floor are visible signs. Many underground leaks leave no visible sign at all.
How do you find a leak underground without digging?
We use acoustic listening equipment that amplifies the sound of water escaping from a pressurized pipe underground. The contact sensor is placed on the ground surface above the pipe route and moved until the signal peaks. We also use infrared thermal imaging to detect temperature differences caused by water movement below the surface. Together these methods locate the leak to within 6 to 12 inches without any excavation.
Can you detect a leak inside a wall?
Yes. Acoustic listening equipment amplifies the sound of water moving inside the wall without opening it. Infrared thermal imaging shows moisture zones inside walls as temperature differences on the surface. We locate the leak and mark the spot before recommending any wall be opened.
Do I have to hire you for the repair if I hire you for detection?
No. Leak detection is available as a standalone service. After detection you receive a written report with the leak location and our assessment. You can take that report to any contractor. If you hire us for the repair, the detection cost is credited toward the repair invoice.
Can you find a leak that another plumber already tried and could not locate?
Yes. A plumber without acoustic and thermal detection equipment has to rely on visible signs — and when there are none, they cannot find the leak. We locate leaks acoustically and thermally regardless of whether the leak is visible on any surface. We have located leaks on properties where other plumbers were unable to find the source.
Do you provide a written report after leak detection?
Yes. Every leak detection service includes a written report showing the location of the leak, the detection method used, and our assessment of the cause. This report can be used for insurance claims, real estate disclosures, and contractor coordination.
How much does it cost to detect a slab leak in Corona?
Slab leak detection typically costs $300 to $500 using acoustic listening and infrared thermal imaging. We locate the leak to within 6 to 12 inches before recommending any concrete be opened. We then give you written repair options based on the pipe condition found during detection. See our slab leak repair page for full information.
Leak Detection in Corona? Call Now — Same Day Including Sundays.
Acoustic and infrared detection. Written report after every detection. Detect-only or detect and repair — your choice. C-36 licensed.
Call (951) 574-8995 — Same Day in Corona See All Plumbing ServicesWater Leak in Corona? Call (951) 574-8995 — Same Day Including Sundays!