Electronic Leak Detection
We use leak detection equipment to help locate hidden water leaks before opening walls, floors, or concrete.
Think you have a hidden water leak? Earl’s Plumbing helps Chico homeowners find slab leaks, underground water line leaks, crawl space leaks, and hidden plumbing leaks behind walls or under floors before they turn into a bigger mess.

Hidden leaks like to play hide-and-seek in the worst places: under slabs, behind walls, in crawl spaces, and underground between the meter and the house. We help narrow down the location before unnecessary tearing, digging, or guessing.
Hidden leaks can waste water, damage flooring, feed musty smells, and make your water bill act like it bought a sports car. We find the source, explain what is happening, and give you practical repair options.
We use leak detection equipment to help locate hidden water leaks before opening walls, floors, or concrete.
Our team works in Chico neighborhoods every week and understands older slabs, aging pipe, crawl spaces, and underground service lines.
We inspect the issue and provide upfront options. No service call fee, no obligation, and no mystery price after the fact.
Once the leak is located, we explain the next step: spot repair, reroute, water line repair, repipe, or another practical solution.
Some leaks are obvious. Others whisper from behind drywall like tiny plumbing ghosts. These are the clues we look for when homeowners call us about a possible hidden leak.
If your water use did not change but your bill jumped, a hidden leak may be running around the clock.
If all fixtures are off and the meter still moves, water may be escaping somewhere in the system.
Hearing water when nothing is on can point to a pressurized line leak under the floor, behind a wall, or underground.
A warm floor area can be a sign of a hot water line leaking under the slab.
Wet carpet, warped flooring, swelling baseboards, or bubbling paint can all be signs of a hidden pipe leak.
A larger leak on a water line can reduce pressure at fixtures, especially if the problem is on the main line or underground service line.

A slab leak happens when a water line under the concrete foundation starts leaking. Chico homes built on slab foundations can develop hidden leaks from aging pipe, soil movement, corrosion, long-term wear, or poor installation.
Signs can include warm floor spots, damp flooring, a rising water bill, low pressure, musty odors, or the sound of water running when everything is turned off.
Our goal is to narrow down the leak location before any opening, digging, or concrete work happens. Better information means better repair options and fewer unnecessary holes.
Chico has a blend of older neighborhoods, slab foundations, crawl spaces, mature landscaping, and rural edge-of-town properties. That mix creates a few common leak patterns.
Older Chico homes can have water lines under the concrete slab. When those lines leak, the first sign may be a high water bill, warm floor, damp room, or sound of water running.
Tree roots, irrigation work, shifting soil, and aging outdoor piping can contribute to leaks between the meter and the home or around exterior water lines.
Homes with crawl spaces may develop leaks at fittings, valves, old pipe, or supply branches. You may notice musty odors, wet insulation, soft flooring, or pests attracted to moisture.
Leaks behind tubs, showers, toilets, vanities, and laundry areas can mimic a slab leak. We check the likely sources before assuming the worst.
Photos from Earl’s Plumbing leak detection jobs in the Chico area, including electronic equipment used to help pinpoint hidden water leaks.

When the source is not obvious, we inspect the plumbing system and use leak detection methods to narrow down where water is escaping.

Electronic leak detection helps the technician narrow the suspected area before any opening, digging, or concrete work is considered.

Our first goal is information. Finding the leak accurately helps homeowners choose the right repair instead of paying for guesswork.
The phrase “leak detection” covers more than one type of problem. Here are the common leak situations our Chico team can help investigate.
Equipment-assisted leak location for hidden water line leaks under slabs, behind walls, or in hard-to-see areas.
Diagnosis for hot or cold water line leaks under concrete foundations, including warm floors, high bills, and running-water sounds.
Leak checks for water service lines between the meter, well system, exterior piping, and the home.
Inspection when your water bill increases but your household usage did not change.
Checks for leaking supply lines, drains, valves, and fittings under homes with crawl spaces.
After the leak is found, we explain repair options such as spot repair, reroute, pipe repair, water line repair, or repipe.
In many cases, yes. Leak detection is about narrowing the location before invasive work begins. That may include checking the meter, isolating fixture groups, listening for pressurized line leaks, inspecting visible plumbing, and using electronic equipment to help pinpoint the suspected area.
Sometimes a wall, floor, cabinet, or slab still has to be opened to complete the repair. But the difference is that we are opening based on evidence, not swinging a hammer at the vibes.

Hidden leaks can feel stressful because the source is invisible. Our process turns the invisible into a plan.
High bill, meter movement, warm floor, damp flooring, low pressure, or running-water sounds all guide where we start.
We check common causes first, including toilets, fixtures, valves, crawl space piping, exterior lines, and slab symptoms.
When needed, we use leak detection equipment and system testing to narrow down the hidden leak location.
Once we know what we are dealing with, we explain options and pricing before approved work begins.
Leak detection is only half the story. Once the leak is located, the real question becomes: what is the smartest way to fix it?
Best when the leak is accessible and the surrounding pipe is in good condition.
Often considered when a slab line is failing and rerouting above the slab makes more sense than opening concrete.
Used when the leak is on an underground or exterior water service line.
Sometimes the issue is a fixture, shutoff valve, toilet, tub, shower, or fitting instead of a hidden main line.
Recommended when the leak is part of a larger pattern of failing pipe, corrosion, low pressure, or repeated leaks.
We explain what we found so you understand the issue and can make the right decision for the home.
Keep this page focused on leak detection, then use these links when the issue turns into a specific repair path.
Our broader leak detection and repair service page.
🔧For homes with repeated leaks, aging pipe, or failing supply lines.
📹For drain, sewer, and underground waste line problems.
📍For water heaters, drains, sewer, septic, wells, and more.
Leak detection pricing depends on the type of leak, location, access, equipment needed, and whether the problem is under a slab, behind a wall, in a crawl space, or underground. We inspect first and price second.
You do not pay just to get a quote. We inspect the issue and explain what we find.
You see the price before approving work. No mystery clock hiding in the crawl space.
Once the leak is found, we explain whether repair, reroute, water line repair, or repipe makes sense.
For larger approved projects, financing options may be available on approved credit.
No service call fee. We confirm same day on most requests.
Active leak or water damage? Call directly at (530) 343-0330 so we can review urgency and dispatch appropriately.
Quick answers for homeowners staring at a water bill, a wet floor, or a mystery meter that will not stop spinning.
Earl’s Plumbing provides leak detection in Chico, CA, including electronic water leak detection, slab leak detection, underground water line leak detection, crawl space leak checks, and hidden plumbing leak diagnosis. Call (530) 343-0330 for a free quote with no service call fee.
Common signs include an unexplained high water bill, the sound of water running when fixtures are off, a spinning water meter, warm or damp spots on the floor, musty smells, bubbling paint, low water pressure, or wet soil outside when sprinklers are off.
Yes. Earl’s Plumbing uses non-invasive leak detection methods whenever possible to narrow down the location before opening walls, flooring, or concrete. The goal is to locate the leak accurately and avoid unnecessary demolition.
Slab leaks in Chico homes can be caused by aging copper lines under the concrete, soil movement, corrosion, water quality, poor installation, or long-term pipe wear. Older homes built on slab foundations are more likely to experience hidden leaks under the floor.
If your water bill suddenly increased and your water use did not change, check for running toilets, dripping fixtures, irrigation leaks, and whether the water meter moves when all fixtures are off. If the meter still moves, call a plumber for leak detection.
Yes. Earl’s Plumbing can help locate underground water line leaks between the meter, well system, or water service line and the home. Wet soil, low pressure, high water bills, or a constantly running meter can all point to an underground leak.
Leak detection cost depends on the type of leak, the location, access, testing needed, and whether the leak is under a slab, behind a wall, in a crawl space, or underground. Earl’s Plumbing provides free quotes with no service call fee, so you get the price before approving work.
After the leak is located, the technician explains what was found and reviews repair options. Depending on the leak, options may include a spot repair, reroute, pipe repair, water line repair, or larger repipe recommendation if the piping is failing in multiple areas.
Earl’s Plumbing performs plumbing-related gas line service and repair. If you smell gas or suspect an active gas leak, leave the area immediately and contact your utility or emergency services first. Once the area is safe, we can help with approved gas line repair options.
No. Earl’s Plumbing provides free quotes with no service call fee in Chico. We inspect the issue, explain the likely cause, and provide upfront options before approved work begins.
Call Earl’s Plumbing for leak detection, a free quote, no service call fee, and upfront options before work begins.
Earl's Plumbing · 220 Sellers Way, Chico CA 95928 · CSLB #772565 · BBB Accredited
Leak detection, slab leak detection, underground water line leak detection, and plumbing leak repair options for Chico, CA and nearby Butte County communities.
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