Leaks & Emergencies
Leak Detection and Slab Leak Repair in Las Vegas
Valley homes are built slab on grade, so a supply line that fails under the floor gives you a warm spot, a running meter and a rising bill rather than a visible drip. The Southern Nevada Water Authority runs a Leak Detection Assistance Program offering qualifying single-family customers a voucher worth up to $250 toward diagnosis.

What is included
The work itself
Slab leak detection
Acoustic and thermal location of a failed supply line under a concrete slab.
Slab leak repair or reroute
Spot repair through the slab, or rerouting the line overhead where that is the better long-term answer.
Hidden and wall leak detection
Locating leaks behind walls, under cabinets and in ceilings, and on the service line to the house.
Worth knowing
Before you book
The work is done by our own background-checked technicians, never day-labor subcontractors. Our license and insurance are on file with the Nevada State Contractors Board, and what a visit is actually like is in our customer reviews.
Signs of a slab leak
A warm patch of floor, running-water sound with everything off, an unexplained bill jump, or a meter that turns when nothing is on.
Why copper fails under valley slabs
Homes from the 1960s to 1990s often have copper in or under the slab, and high mineral water plus decades of ground movement opens a pinhole.
The SNWA leak voucher
Apply through SNWA before work begins. One voucher per property per year, used with a participating plumber.
Where we do this
Across the Las Vegas Valley
What changes between these places is the permitting authority, the water utility and the age of the housing, and all three change how this job goes. We cover 21 communities across the valley, within 45 miles of Las Vegas.
Questions
Leak Detection, answered
How do you find a slab leak without digging up the floor?
Acoustically and thermally, before anything is opened. A pressurised line losing water under a slab makes a sound and leaves a warm track, and both can be located from above to within a small area. That is the whole point of detection as a separate step: the difference between opening one square of floor and opening a room is knowing where the leak is before the first cut.
Why do copper pipes fail under Las Vegas slabs?
Homes built from the 1960s to the 1990s often ran copper in or under the slab, and valley water at about 17 grains per gallon works on it from the inside while decades of ground movement work on it from the outside. Eventually a pinhole opens. A first pinhole is bad luck; a second or third in the same house is the run telling you it is thinning everywhere, which is when a reroute beats another spot repair.
Is there help with the cost of finding a leak in Las Vegas?
Yes. The Southern Nevada Water Authority runs a Leak Detection Assistance Program that gives qualifying single-family customers a voucher worth up to $250 toward diagnosis or the first hours of repair. You apply as the account holder before work begins, use a participating plumber, and it is one voucher per property per calendar year.
Should a slab leak be repaired through the slab or rerouted?
It depends on what the rest of the pipe is doing. A single failure on otherwise sound line is a spot repair through the slab. Where the same run has already leaked once, or the pipe is old copper in high mineral water, rerouting that line overhead takes it out of the slab permanently and stops you paying for the same diagnosis again. We tell you which situation the camera and the pressure test actually show.
How do I know if I have a slab leak?
The usual signs are a warm patch of floor, the sound of running water with everything off, an unexplained jump in the water bill, or a meter that turns when nothing is on. Valley homes are slab on grade, so a failed supply line under the floor gives you those symptoms rather than a visible drip. We locate it acoustically before opening anything.
Are you licensed and insured?
Yes. Monkey Wrench Contractors LLC holds Nevada State Contractors Board license 0092999 and trades as Monkey Wrench Plumbing. We are a BBB accredited business with an A plus rating, and every technician is background checked. About thirty minutes before your appointment you get a text with the assigned technician's photo, name, license number and live ETA.
Do you charge for an estimate?
No. The inspection is free and you get a flat-rate price before any work begins, so the number you approve is the number you pay. If the scope changes once something is opened up, we stop and re-quote rather than adding to the invoice at the end.
Keep reading
Related services
People booking leak detection often ask about emergency plumber in Las Vegas, whole-home repipe and preventative plumbing as well.
24/7 Emergency Plumbing
Round-the-clock dispatch for burst lines, sewer backups, failed water heaters and no-water calls.
Pipe Repair and Repiping
Repair of burst and leaking lines, and whole-home repipes replacing polybutylene or failing copper with PEX.
Plumbing Maintenance and Inspection
Scheduled inspection that documents pressure, water heater condition, shutoff status and drains in writing.
On the line, just in time.
Free inspection, flat-rate price before we start, dispatch open 24 hours a day.