Slab Leak Detection & Repair
Warm floors, damp carpet, or water running under the concrete? We pinpoint slab leaks within inches — no torn-up floors, no guesswork.
View this serviceLEAK INVESTIGATION BEHIND WALLS & CEILINGS
Fix the reason the stain keeps coming back.
Painting over a water mark won’t resolve a leaking pipe behind it. Our hidden pipe leak detection in Reno investigates concealed plumbing so you can address the source before restoring damaged walls or ceilings.
The investigation starts with where the moisture appears, when it develops and which plumbing fixtures are nearby. Testing helps assess the suspected pipework and narrow the area that may need access. If an opening is necessary, we explain its purpose and discuss the repair before work proceeds.
Leak Detection Reno helps you understand what needs attention—from the concealed pipe to the next steps for accessing it.
No-obligation advice • Flat-rate quote before any work starts • 60–90 min emergency response across Reno & Sparks

$195–$395
Flat-rate detection visit
Inches
Pinpoint accuracy before opening
Moisture-mapped
Wet zone photographed & documented
Same visit
Most repairs completed
The Basics
A hidden pipe leak is a failure in the branch lines that run through your walls and ceilings — the copper and PEX that feed bathrooms, the kitchen, the laundry, and the water heater. Unlike a dripping faucet or a burst line spraying across a room, it gives you no water to mop up. It wicks silently through drywall, saturates insulation, pools on the top side of ceilings, and creates the constant damp that mold needs to establish — often inside a cavity where you will not see it until the stain, the bubble, or the smell finally surfaces.
Reno homes carry a specific stack of in-wall leak risk. Hard Northern Nevada water leaves mineral scale that narrows branch lines from the inside — hot-side runs fail first because heat accelerates the corrosion. Much of the city's housing was built from the 1970s through the 1990s, so copper branch plumbing is now 30–50 years into service life, while older Midtown and Old Southwest homes still carry legacy galvanized sections. And every Sierra cold snap puts pressure on runs that pass through exterior walls — the pipes nobody thinks about until the first hard freeze.
Our approach removes the two worst parts of a hidden leak: the guessing and the destruction. Thermal imaging reads temperature signatures through the wall surface, acoustic listening amplifies the drip or hiss inside the cavity, and moisture mapping traces the wet zone's true perimeter — usually wider than the visible stain. Only then do we open one small access exactly at the pinpointed spot, quote a flat-rate repair before touching the pipe, and leave you a written report with photos and moisture readings your insurance adjuster will actually accept.
Hidden Pipe Leak Warning Signs
In-wall leaks telegraph quietly through surfaces. Any one of these signs justifies a survey — and two or more together make the odds very high.
A brownish ring on drywall or a ceiling that spreads after it 'dried' — or comes back after paint — is moisture arriving from a live source, not an old event.
Water pushes finishes off drywall from behind. Paint that blisters or wallpaper lifting at a seam with no roof or bathroom spill to explain it.
Dripping, hissing, or faint running water heard against a quiet wall while every fixture is closed — the classic signature of a pressurized branch leak.
A hot-side leak warms the wall surface it runs behind; a cold-side leak leaves cool, damp-feeling patches. Either way, the wall is telling you where to look.
Mold establishes in wet insulation and wall cavities within 24–48 hours of a leak starting. A persistent odor with no visible source means the source is hidden.
Every valve closed and the meter still creeps — isolation testing separates fixture leaks, wall runs, and slab lines so the right survey runs.
Noticed a change? Start with a clear description.
Request a Leak InspectionAll Specialties
Hidden Pipe Leak Detection & Repair is one of nine specialties our Reno crew runs every week — same team, same flat-rate quotes, one 24/7 line for all of them.
Warm floors, damp carpet, or water running under the concrete? We pinpoint slab leaks within inches — no torn-up floors, no guesswork.
View this serviceFrom the meter to your faucets — we trace pressure drops, soggy yards, and humming pipes to the exact break in your main water line.
View this serviceBuried service lines are invisible until the yard turns soft. Acoustic and pressure testing locates the leak so excavation stays small and surgical.
View this serviceIn-wall and ceiling leaks found with thermal imaging and moisture mapping — minimal demolition, maximum accuracy, mold stopped before it starts.
You're viewing this serviceBurst pipes and active leaks can't wait — 24/7 emergency response across Reno and Sparks with water shut-off guidance over the phone while we're on the way.
View this serviceCamera inspections, smoke testing, and hydrostatic testing that reveal exactly what's wrong under your yard — roots, bellies, cracks — and the least disruptive fix.
View this serviceHidden sprinkler and irrigation line leaks waste thousands of gallons every season — zone-by-zone testing finds them and cuts your water bill down to size.
View this serviceHotels, restaurants, offices, and multi-family properties — fast, documented leak location that keeps tenants happy and doors open.
View this serviceSuspect a gas leak? If you smell gas right now, leave and call 911 — then let us find and fix the leak with combustible gas detection and pressure testing.
View this serviceHow It Works
Four steps, in order — and the wall only opens after the location is confirmed and the price is agreed.
Hot or cold side, one room or several, recent events — a short call isolates the likely run before we ever roll, so the right equipment shows up first.
Infrared cameras read temperature deltas through the surface; pin and pinless moisture meters map the wet zone's true perimeter — no holes, no dust.
Wall-contact microphones amplify the leak's own sound inside the cavity and mark the exact spot — including depth — before any access is planned.
The smallest opening the repair allows, exactly at the mark. The pipe is repaired, pressure-tested, and the wall is left patch-ready. You approve the flat rate before we start.
Transparent Pricing
Flat rates, confirmed before we begin — no hourly meter, no diagnostic games, no surprise line items after the wall is open.
| Service | Typical Reno Price | What's Included |
|---|---|---|
| Hidden leak detection visit | $195–$395 flat-rate | Thermal imaging, acoustic pinpointing, moisture mapping, marked location, photos, written report |
| Pinpointed pipe repair | Flat-rate, quoted on-site | One small access opening, repair of the failed section, pressure test, patch-ready finish |
| Access opening & patch-back | Quoted with the repair | Opening sized to the fix, debris hauled, drywall left ready for your painter or finisher |
| Ceiling & second-story runs | Same flat-rate detection | Attic-side access preferred wherever it exists — keeps ceilings intact and repairs cleaner |
Every job ships with a written report, photos, and moisture readings formatted for insurance claims — most Nevada carriers cover resulting damage from sudden pipe failures and often the cost of accessing the pipe. We document so your claim stands on evidence, not assertions.
Get a Firm Quote — Call NowYour Repair Choices
The right fix depends on the pipe's age and condition, not on what costs us the least effort. You will see all viable options with flat-rate pricing before we open anything.
One opening, repair the failed section, pressure-test, close. The right call when the surrounding pipe is healthy — the majority of first-time leaks.
When a run shows repeated failures, widespread scale, or multiple pinholes, replacing the compromised section ends the leak-a-month cycle instead of feeding it.
Where the existing path is hostile — an exterior wall that freezes, a ceiling with no sane access — we abandon it and pull a new line through the attic or a closet. Priced as a complete package.
The Equipment
Four technologies, deployed in combination — the drywall opens only after the location is confirmed.
Read temperature deltas through drywall and tile — a hot-side leak glows, a cold-side leak chills, and the wet run betrays itself before any surface is touched.
Contact microphones amplify the drip or hiss inside the cavity and track it across studs until the loudest point is found — the leak marks its own spot.
Pin and pinless meters trace the wet zone's true perimeter — usually wider than the visible stain — so the repair addresses the real damage, not just the symptom.
For silent or intermittent leaks: a safe hydrogen-nitrogen mix escapes at the break and is sniffed out at the surface — finds what sound and heat miss.
Understanding Local Leaks
The Truckee Meadows puts its own signature on in-wall plumbing. Four local forces account for most of the hidden leaks we pinpoint.
Mineral-heavy water narrows copper from the inside — hot-side runs first, where heat accelerates the corrosion. The failure lands wherever scale and stress meet.
Branch lines through outside walls freeze before anyone thinks about them — laundry rooms, powder rooms, and kitchen runs on north-facing walls are the usual suspects.
Much of Reno's housing stock runs copper that is now 30–50 years into service life; Midtown and Old Southwest add legacy galvanized sections well past their prime.
Reno's arid climate evaporates surface moisture faster than it stains — by the time a mark shows, the leak behind it has often been running for months.
Where We Work
The whole Truckee Meadows, covered from our 89503 base with 60–90 minute typical emergency dispatch. Tap your neighborhood for its local guide.
Common Questions
Leak Detection Reno provides hidden pipe leak detection & repair and eight related specialties to homeowners, property managers, and commercial properties across Reno, Sparks, and Washoe County — headquartered at 698 N Arlington Ave, Reno, NV 89503. Call (755) 227-9923 or email leakdetectionreno@gmail.com — a person answers 24/7 and flat-rate pricing is quoted before any work begins.