Slab leak symptoms
Warm spots, wet flooring, pressure loss, or running water sounds under the slab.
Hidden leaks · Slab leaks · High water bills
Leak detection before the damage gets worse.
A hidden leak can damage flooring, drywall, cabinets, and foundations before you see the source. Sentinel Plumbing helps locate and diagnose suspicious water leaks across North Las Vegas and the Las Vegas Valley.
Licensed NV C-1D 0091125
95+ 5-star Google reviews
Same-day or next-day service when available
1-yr labor warranty on workmanship
What we do
Find the leak before tearing everything apart.
Leak detection starts with symptoms: high water bills, wet spots, pressure loss, warm flooring, or water sounds when nothing is running. We inspect the plumbing system, narrow down the source, and explain repair options before opening walls or floors.
Wall and cabinet leaks
Moisture under sinks, behind fixtures, or inside walls and ceilings.
Water bill spikes
Unexpected usage can mean a hidden leak, running toilet, irrigation issue, or underground leak.
Common signs
Signs you may have a hidden leak.
If something feels off but you cannot see the leak, these are the signs to watch for.
- Water bill suddenly higher than normal
- Sound of running water when fixtures are off
- Warm or wet spot on the floor
- Mold smell under cabinets or inside walls
- Low water pressure throughout the house
- Cracked tile, warped flooring, or damp baseboards
What to expect
How we approach leak detection.
- 1
Listen to the symptoms
We ask where you see water, when it happens, and whether the meter is moving.
- 2
Inspect visible plumbing
We check fixtures, supply lines, valves, water heaters, and accessible piping first.
- 3
Narrow the source
We use the symptoms and system checks to identify the most likely leak area.
- 4
Explain repair options
Before opening walls or floors, we explain what we found and what the next step should be.
Honest, upfront pricing
Leak detection pricing.
Leak detection pricing depends on the symptoms, location, access, and how much diagnosis is needed. We use a diagnostic-first approach and explain the next step before repair work begins.
Basic leak check
starting pointQuote
Visible fixtures, valves, water heaters, and accessible supply lines.
Hidden leak diagnostic
starting pointQuote
For wall, slab, underground, or unknown leak symptoms.
Repair estimate
starting pointAfter diagnosis
We quote repair options once the likely source is identified.
Urgent leak
starting pointCall
If water is actively damaging the home, call for current availability.
Prices are working placeholders and may be adjusted during final pricing review. We explain pricing up front before work starts.
Why Sentinel
Plumbing done honestly.
01
Family-owned, local
Headquartered in North Las Vegas. We answer the phone ourselves.
02
Upfront pricing
You see the number before we start. No surprise add-ons at the end.
03
Licensed & insured
Nevada license NV C-1D 0091125. Fully insured.
04
Warranty backed
1-year labor warranty on our workmanship.
Related services
Other plumbing services we offer.
Service area
Leak Detection across the Las Vegas Valley.
Same-day or next-day service when available across our service area.
Frequently asked
Leak Detection questions, answered.
How do you find a leak without breaking walls?
We start with visible plumbing, meter behavior, pressure symptoms, sound, moisture patterns, and fixture checks. Opening walls or floors should happen after the likely source is narrowed down.
What is a slab leak?
A slab leak is a leak in a water line under the concrete slab of the home. Signs can include warm flooring, water sounds, pressure loss, and unexplained water usage.
How much does leak detection cost?
It depends on the situation. A visible fixture leak is different from a suspected slab leak. We explain diagnostic pricing before work starts.
Will insurance cover a water leak?
Coverage depends on your policy, cause of loss, and damage. We can document what we find, but your insurance company decides coverage.
Can high water pressure cause leaks?
Yes. High pressure can stress fixtures, supply lines, water heaters, and valves. If pressure is high, a PRV replacement may be needed.
Should I wait if the leak is small?
No. Small leaks often cause hidden damage over time. It is usually cheaper to diagnose early than to repair water damage later.
Need leak detection?
Call us or book online. Same-day or next-day service when available. We'll give you an honest answer before we start work.