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 serviceBENEATH YOUR YARD. BEYOND THE VISIBLE SIGNS.
A wet patch shows where water collects—not necessarily where the pipe is leaking.
Water escaping from a buried pipe can travel through the ground before appearing at the surface. Our underground leak detection in Reno helps investigate the source, giving you a clearer starting point for repairs before excavation begins.
From plumbing beneath lawns to pipes running under driveways and paved areas, Leak Detection Reno assesses the suspected line, available access and surrounding conditions. We explain what the investigation reveals, where uncertainty remains and what access may be needed to repair the affected pipe.
No-obligation advice • Flat-rate quote before any work starts • 60–90 min emergency response across Reno & Sparks

$195–$395
Flat-rate detection visit
Surface-only
Non-destructive locating
60–90 min
Emergency dispatch
One small dig
Surgical excavation
The Basics
Anything buried can leak — the water service line under the driveway, irrigation mains under the lawn, sewer laterals under planting beds, yard hydrants, pool and spa runs. What they share is the worst possible failure mode: water escaping where no one can see it, eroding soil support and inflating bills while everything above ground still looks fine. Underground leaks are also the category where an undisciplined contractor does the most expensive damage, because the traditional method was a trench across the yard to look for the problem.
Precision changes the entire economics of the job. Locating the failure from the surface — within inches, at a marked depth — turns a destructive excavation into a surgical one: one small opening, one repair, the landscape and hardscape largely intact. It also protects you from the opposite mistake, the exploratory-dig quote that grows by the hour while the crew hunts for a leak that was findable with a microphone. Our written report states the location, depth, and cause, so whoever does the repair — us or your plumber of choice — starts at the right spot.
The survey itself is built from four technologies deployed as needed: acoustic ground microphones for pressurized lines, pressure isolation to confirm the failing segment, tracer gas for deep or quiet breaks, and camera inspection for sewer laterals. Detection visits run $195–$395 flat-rate, repairs are quoted on-site before work begins, and emergencies get 24/7 dispatch with a 60–90 minute typical arrival across Reno and Sparks.
Underground Leak Warning Signs
Buried leaks leave fingerprints all over the yard and the water bill. Any of these signs deserves a survey before the damage spreads.
Ground that stays damp — or muddy — through Reno's dry summer heat is being fed from below, not from the surface. That is the leak, showing you where it lives.
A single extra-green, fast-growing strip in an otherwise struggling yard is the classic signature of a buried water or sewer line feeding one spot around the clock.
The decisive test: every fixture, appliance, and irrigation zone shut down — and the low-flow indicator still turning. Water is escaping between the meter and the drains.
Water undermining soil support shows up as soft ground, new low spots, or cracking pavement over the run — a structural warning, not just a plumbing one.
Gurgles, slow drains across the house, or sewer smells outdoors point to a leaking or broken lateral — a different system, found with camera and hydrostatic testing.
A TMWA bill that climbs month after month with no dripping faucet anywhere usually means a constant underground loss you cannot see — yet.
Noticed a change? Start with a clear description.
Request a Leak SurveyAll Specialties
Underground 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.
You're viewing this serviceIn-wall and ceiling leaks found with thermal imaging and moisture mapping — minimal demolition, maximum accuracy, mold stopped before it starts.
View 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 serviceOur Method
Map, listen, isolate, pinpoint — a surface-only sequence that ends with the failure marked to the inch and the dig kept surgical.
We identify which system is suspect — domestic supply, irrigation, or sewer — and run a meter test with you over the phone before we roll. Emergencies start with shut-off coaching.
Acoustic sweeps and moisture or thermal readings follow the suspected run across lawn, gravel, or pavement — no digging, no probing, no damage.
Pressure isolation narrows the failing segment; tracer gas pinpoints deep or quiet breaks. The result is a location we mark to the inch, with depth noted.
One marked opening exactly at the failure, the repair quoted flat before we start, the site backfilled and compacted — and a written report for your records.
Straight Answers
Flat rates, stated before we begin — because the last thing an underground problem needs is a meter running on top of it.
| Service | Typical Reno Price | What's Included |
|---|---|---|
| Underground leak detection visit | $195–$395 flat-rate | Acoustic + tracer/pressure survey, the leak marked on-site with depth, and a written report with photos |
| Emergency underground leak response | Same flat-rate philosophy | 24/7 live triage, shut-off coaching over the phone, and a 60–90 minute typical dispatch across Reno and Sparks |
| Surgical dig & spot repair | Flat-rate, quoted on-site | One marked opening exactly at the confirmed failure — no exploratory trenching, priced before we start |
| Section replacement or reroute | Custom flat-rate quote | Failing runs priced for full replacement up front — new routing chosen to minimize disturbance to yard and hardscape |
Every detection visit includes insurance-ready documentation — written findings, photos, and cause detail your adjuster accepts. If the loss sits on the utility side of the meter, we document that split too, before you spend a dollar on repair.
Get a Firm Quote — Call NowRepair Options
Once the failure is marked, the repair decision becomes straightforward. We quote every viable path at a flat rate.
One small dig at the marked point, the failed section replaced with proper couplings, pressure tested, backfilled and compacted. The right answer for a single failure on an otherwise sound run.
When a run has failed repeatedly or the material is end-of-life, we replace the affected section outright — priced in full before work begins, never patched indefinitely.
Where the existing path is hostile — under new hardscape, through rock, repeatedly failing — we abandon it and route a new line along a cleaner, shallower path. Priced as a complete package.
The Equipment
Four technologies, deployed as the run demands — the dig happens only after the location is confirmed.
Amplify the hiss of pressurized water escaping underground — tracked along lawns, gravel, and pavement to close in on the failure.
A safe hydrogen-nitrogen mix pushed through the line escapes at the break and rises to the surface — found even under concrete and asphalt.
Valving the system section by section confirms which segment loses pressure — cutting the search area before we listen for the exact point.
For laterals, a camera travels the pipe itself — showing roots, bellies, and cracks at their exact station, paired with hydrostatic testing.
Understanding Local Leaks
The Truckee Meadows puts its own signature on buried plumbing. Four local forces account for most of the underground failures we pinpoint.
Rocky Sierra-foothill soils abrade buried lines at every contact point, and spring runoff shifts ground that was solid the year before — flexing rigid runs at their joints.
Irrigation mains and shallow service lines sit near frost depth; every winter's freeze-thaw cycle flexes them until the weakest joint or seam gives way.
Mineral-heavy water narrows lines from the inside. Restrictions raise pressure locally, and the failure lands wherever the scale and the stress meet.
Seasonal moisture swings move Truckee Meadows soils — wet spring, baked summer — and rigid buried lines pay the price at every change of direction.
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 underground 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.