BowTie Home Services · Las Vegas, NV
Slab Leak Detection & Repair in Las Vegas
We locate and repair slab leaks with acoustic and thermal detection — minimal demolition, upfront pricing, and same-day response across Las Vegas.
Homeowner Reviews
Licensed & Insured
Nevada plumbing & HVAC
White Glove Guarantee
Every visit, every time
Upfront Pricing
No surprises, ever
Why Las Vegas Homes Get More Slab Leaks
Nearly every home in the Las Vegas Valley sits on a concrete slab foundation — no basement, no crawlspace, just pressurized water lines running directly through or under the concrete. That's normal for the Mojave Desert. What's not normal is how aggressively three local factors work against those pipes.
Las Vegas has some of the hardest municipal water in the country. Water sourced from Lake Mead via the Colorado River arrives with high calcium carbonate concentrations — around 278–300 mg/L, well into "very hard" territory by EPA standards. Over decades, that mineral load builds scale inside copper pipes, and the water chemistry (high pH, chloramines used for disinfection, high total dissolved solids) contributes to pitting corrosion. Small copper pinhole leaks are the most common way a slab leak begins.
The desert soil moves. The Las Vegas Valley's soils include caliche — a calcite hardpan layer that doesn't absorb moisture evenly — along with sandy and silt-heavy fills common in newer subdivisions. When rain does fall, or when a slow exterior irrigation leak saturates a section of soil over months, the ground expands and contracts unevenly. That movement transmits stress to the pipes embedded in or under your slab.
Most of the Valley's copper pipe is now 30–50 years old. The original construction boom that built Summerlin, Green Valley, Spring Valley, and most of central Las Vegas put copper plumbing throughout. That pipe was built to last. It's also now at or past the point where pinhole failures in hard-water environments become statistically common.
How We Find and Fix It
Slab leaks don't announce themselves with an obvious puddle. They announce themselves with a water bill that climbed $80 for no reason, or a section of tile that's oddly warm, or the faint sound of running water at 2 a.m. when everything in the house is off.
Detection first, demolition never — unless necessary. Our technicians use electronic acoustic detection and thermal scanning to narrow the leak to a precise location before any concrete is touched. We locate the pipe, confirm the leak, and mark it — and only then do we discuss the access required.
Repair options depend on what we find. For an isolated pinhole in otherwise healthy copper, direct spot repair with targeted concrete access is usually the right call. For a pipe that's failing repeatedly, or a home that's had multiple slab leaks over the years, we'll walk you through a full repipe with PEX-A — which bypasses the slab entirely by routing new supply lines through walls and the attic. Both options come with flat-rate pricing given upfront after our assessment.
- Electronic and acoustic leak detection
- Thermal scanning to pinpoint leak location
- Slab leak repair with minimal concrete access
- PEX-A repipe for extensively compromised systems
- Flat-rate pricing provided upfront after assessment
- Same-day service across Las Vegas
Signs You Might Have a Slab Leak
- Your water bill spiked with no explanation. A slab leak running continuously can add hundreds of gallons per day to your usage.
- You hear running water when everything is off. If you can hear water moving through walls or under the floor late at night, that's not your imagination.
- There's a warm or wet spot on the floor. Hot water line leaks raise the surface temperature of the concrete and flooring above them. A noticeable warm patch near a wall is a strong signal.
- Flooring is buckling, lifting, or damp. Carpet that stays damp, tile that cracks at grout lines, or wood flooring that cups are all signs that moisture is coming from below.
- Mold, mildew, or a musty smell at floor level. Even a slow leak eventually saturates the slab enough to grow mold in the flooring material above it.
- Low water pressure throughout the house. A significant slab leak bleeds enough pressure to affect flow at every fixture.
- Cracks appearing in walls near the foundation. Sustained water under the slab can destabilize the concrete and transmit that movement to interior walls.
Slab Leak Questions for Las Vegas Homeowners
How do I know for certain I have a slab leak, not just a regular pipe leak?
Location is the key difference. A slab leak is a leak in a supply line that runs through or under your concrete foundation. If the signs — warm floor spots, unexplained water usage, the sound of running water when nothing is on — are happening away from any exposed wall plumbing and can't be traced to a visible fixture or appliance, the leak is almost certainly in the slab. Electronic acoustic detection lets us confirm it precisely before we recommend any repair.
Why are slab leaks so common in Las Vegas?
Three factors combine here more than most cities: very hard water from the Colorado River that causes pitting corrosion in copper pipes over time; shifting desert soils (caliche hardpan and sandy fill) that stress pipes as moisture levels change; and a large stock of copper plumbing now 30–50 years old. Most of the Valley's original build was slab-on-grade with copper supply lines, and those systems are now at the age where failures become common.
Can you locate the leak without tearing up my floor?
Yes. We use electronic acoustic detectors and thermal scanning to pinpoint the location before anything is opened up. The goal is to mark exactly where the pipe is failing so the access hole is as small and targeted as possible — not to guess and excavate.
What are my repair options once you find it?
For an isolated failure in otherwise healthy pipe, we do a targeted spot repair — open the concrete, fix the pipe, patch. For homes where the pipe has failed before or where the copper is extensively corroded, we'll talk through a full repipe using PEX-A routed through walls and the attic, which bypasses the slab entirely. We explain both options with flat-rate pricing upfront, and we don't push one over the other.
Will my homeowner's insurance cover slab leak repair?
Policies vary significantly. Most homeowner's policies cover the damage caused by the leak — flooring, drywall, mold remediation — but not the plumbing repair itself, which is typically considered a maintenance item. Some policies do cover access and repair costs. It's worth calling your insurer before the job begins. We can document the detection and scope of work for your claim.
How long does slab leak detection and repair take?
Detection is typically a 1–2 hour appointment. A spot repair on a located leak usually finishes the same day or the next, depending on the concrete access required. A full repipe takes 2–3 days. We give you a clear timeline before any work begins.
How much does slab leak detection cost in Las Vegas?
We provide flat-rate pricing upfront after our on-site assessment — there's no charge to diagnose and quote the work. Cost depends on the detection method required, the repair type, and the access involved. Call (725) 290-3207 to schedule.
Hear running water you can't explain? Don't wait.
Slab leaks in Las Vegas get worse with every billing cycle. The longer they run, the more concrete, flooring, and framing they saturate. Call us and we'll pinpoint it.
Ready to schedule the BowTie Touch?
Same-day and next-day appointments available across the Las Vegas Valley.