What are the signs of a hidden water leak in my Jacksonville home?

Key warning signs include: an unexplained spike in your JEA water bill, the sound of running water when all fixtures are off, warm or soft spots on tile or hardwood floors (indicating an under-slab leak), water stains appearing on walls or ceilings, musty or mildew odors (mold growing from a hidden wet area), and wet spots or unusually green grass in your yard over buried water lines. Any one of these warrants a professional inspection before the damage grows.

Can you find a leak under my concrete slab without jackhammering?

Yes. Our acoustic listening equipment can detect the sound of pressurized water escaping through the concrete and pinpoint the leak location to within a few inches — without any demolition. Once we have the exact location confirmed, we make a single targeted opening at the leak point rather than random exploratory cuts. For slab leak repair , we also offer pipe rerouting options where we bypass the compromised under-slab line entirely, eliminating the need to work under the slab at all.

How can I tell if my high JEA water bill is from a leak?

A quick home check: turn off all water-using appliances and fixtures, then watch your water meter for 15 minutes. If the meter dial or digital display continues moving with everything off, you have an active leak somewhere in your system. If it stops, the issue may be a running toilet or a slow drip rather than a pipe leak. Either way, a professional leak detection visit will identify the source and give you an accurate repair cost before any work begins.

How much does water leak detection cost in Jacksonville?

Leak detection is priced as a diagnostic service — you pay a fixed fee to locate the leak, then receive a separate repair quote once we know exactly what's involved. The detection fee varies based on the complexity of the investigation (above-slab vs. under-slab vs. underground line). We credit the detection fee toward the repair when you proceed with us on the same visit. Call (904) 760-7837 for current pricing specific to your suspected leak type.

Water Leak Detection Jacksonville FL

Stop the Damage Before It Spreads

A hidden water leak doesn’t announce itself — it works in silence for months, saturating your slab, rotting your framing, and feeding mold colonies inside your walls. In Jacksonville, our high water table means a small under-slab leak can compound quickly into a foundation problem. By the time most homeowners notice a warm spot on the floor or a spike on their JEA water bill, significant damage has already occurred.

At RiverCity Plumbing, we use professional-grade leak detection equipment to locate the source precisely — without jackhammering your slab or opening your walls at random. Our acoustic amplifiers, thermal imaging cameras, and electronic line tracing let us pinpoint leaks to within inches, so the repair is targeted, minimally invasive, and permanent. For confirmed slab leak detection and repair, we have a dedicated process for that specific challenge.

Our Leak Detection Technology

Acoustic Listening Devices

Pressurized water escaping a pinhole produces a distinct sound frequency. Our ground microphones and contact sensors amplify this signal to locate the leak point through concrete slabs and earthen soil — without breaking anything open first.

Thermal Imaging Cameras

Leaking water changes the thermal signature of the surrounding material. Our infrared cameras detect temperature differentials in walls, ceilings, and floors — revealing the wet zone created by a leak before visible damage appears.

Electronic Line Tracing

For leaks in buried or concealed supply lines, we inject a signal into the pipe and trace its path electronically — mapping the exact route of the line and identifying where continuity breaks (indicating a break or severe corrosion point).

Pressure Isolation Testing

We isolate sections of your supply system and monitor pressure decay to confirm a leak is present and estimate its severity — a precise, quantitative method that works on any pipe material and location.

Common Hidden Leak Locations in Jacksonville Homes

Under-Slab Supply Lines

Copper pipes buried under Jacksonville’s concrete slabs corrode from the outside in, accelerated by our sandy, slightly acidic soil. These slab leaks are the most damaging type — undetected for months, they undermine foundations and saturate soil.

Inside Walls & Ceilings

Pinhole leaks in copper supply lines inside wall cavities are common in Jacksonville homes with hard water. The first sign is often a water stain on drywall or a musty odor — by which point mold is already growing behind the surface.

Underground Service Lines

The supply line running from your water meter to your house is buried in Jacksonville’s shifting sandy soil and exposed to tree roots. Leaks here waste thousands of gallons before showing up as a wet spot in your yard or a high JEA bill.

Pool & Irrigation Lines

Pools that lose more than ¼” of water per day beyond normal evaporation typically have a structural or plumbing leak. We trace irrigation and pool supply lines electronically to locate leaks without excavating your entire yard.

Our Leak Detection Process

Symptom Assessment

We start by reviewing your JEA water bill history, listening to your observations, and performing a visual inspection of your home’s plumbing system to determine which section is most likely to contain the leak.

Non-Invasive Detection

We deploy the appropriate technology for your leak type — acoustic amplification for under-slab leaks, thermal imaging for wall cavities, electronic tracing for buried lines. We locate the leak before opening anything.

Precise Location & Repair Quote

Once located, we mark the exact leak point and provide an upfront, fixed-price repair quote. You know exactly what the repair will cost and why before we make a single cut.

Targeted Repair

We make the minimum access needed to repair the leak — one targeted cut at the confirmed leak point, not exploratory demolition. After repair, we pressure-test the system to confirm the leak is fully resolved.

Suspect a Hidden Leak?

High water bill, warm floors, or musty smell? Don’t wait — call us now.

Related Services

Transparent Leak Detection Pricing

Leak detection is a diagnostic service with a fixed upfront fee that covers locating the leak using our non-invasive equipment. The repair cost depends on the type of leak, its location, and access requirements, and is quoted separately after we’ve identified the exact problem. Our detection fee is often credited toward the repair. We believe knowing exactly what’s wrong before committing to a repair cost is the foundation of honest service.

Your Questions

Find the Leak — Before It Finds Your Foundation

Non-invasive detection pinpoints the source. Targeted repair. No random demo. Call us today.

Water Leak Detection in Jacksonville, FL