Leak Detection · San Tan Valley

Leak Detection in San Tan Valley, AZ

A bill that doesn’t add up, a meter that won’t sit still — non-invasive acoustic, moisture, and thermal detection find it before anything gets opened up.

Desert Vale Plumbing
Hours
Mon–Sat 8AM–6PM · 24/7 Emergency
About
Locally & family-owned · 10 years in business
24/7
Emergency plumbing
Same-day
Service available
10 yrs
In business
Family
Locally owned & operated

Signs of a Hidden Leak

!
A water bill that jumps without a clear change in usage
!
Your water meter still moving when every fixture is off
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Warm spots on flooring, which can mean a hot-water line leak under a slab
!
A damp or unusually green patch of yard, away from irrigation heads
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The sound of running water when no fixtures are in use

Water Meter Leak-Test Steps

1
Turn off every fixture and water-using appliance — faucets, toilets (don’t flush), ice makers, washing machines, irrigation.
2
Locate your water meter and note the exact reading, including the leak-indicator dial if present.
3
Wait 1–2 hours without using any water inside or outside the home.
4
Check the meter again. If the reading changed, or the indicator dial moved, water is flowing somewhere.
5
If the meter moves with everything off, that points to a leak on your side of the service connection.

Desert Heat Can Mask Moisture — Irrigation Can Mimic a Leak

High summer temperatures cause water from a leak to evaporate quickly, so a slab or yard area can look dry while a leak runs underneath. Extensive drip irrigation is also a common false positive — a cracked emitter can look exactly like a plumbing leak. We confirm the actual source before assuming either.

How Professional Leak Detection Works

Acoustic Leak Detection
Picks up the sound signature of water escaping under pressure through a slab, wall, or ground surface.
Moisture Meters
Measure moisture in flooring and drywall, helping distinguish an active leak from old staining.
Thermal Imaging
Reads surface temperature differences to visualize a hot-water line leak’s likely path.
Pressure Testing
Isolates sections of plumbing to confirm whether a leak exists on a particular line.

Wall/Ceiling Leaks vs. Underground & Slab Leaks

Wall & Ceiling Leaks
Usually come from a supply line, drain line, or occasionally an HVAC condensate line. Look for a stain that grows over days, soft or bubbling drywall, or a musty smell in one area. Acoustic and moisture-meter methods are typically the first step.
Underground & Slab Leaks
A slab leak happens when a line under the foundation cracks or fails, often from corrosion, shifting soil, or age. Underground leaks outside the slab — feeding a hose bib or irrigation system — use similar acoustic and pressure-testing methods without going through the foundation.

What Happens After a Leak Is Located

Situation Typical Approach
Single, accessible leak point in a slab Spot repair — breaking a limited section of concrete, repairing the pipe, and patching the slab
Leak in an aging or heavily corroded pipe run Reroute — running a new line to bypass the damaged section instead of repairing in place
Leak in a hard-to-access location under the slab Tunneling — accessing the pipe from beneath the foundation rather than the slab surface
Leak in an underground yard or irrigation line Trenching/spot dig — excavating a limited section of yard to access and repair the line

What a Plumber Checks During a Leak Detection Visit

✓Water meter behavior and recent usage patterns
✓Visible signs inside the home — stains, soft spots, odors, pressure changes
✓Acoustic readings at suspected wall, floor, or yard locations
✓Moisture levels in flooring and drywall near suspected leak paths
✓Irrigation and drip-system condition, to rule out a landscaping-side leak
✓Whether the property is on the EPCOR San Tan system or a private septic/ATU system

Leak detection pricing depends on the suspected location, property layout, access, and diagnostic methods required. Call +1 (888) 395-2416 and describe the meter behavior and visible symptoms so the next step can be scoped.

Safety Note
If you smell natural gas, notice sewage backing up into the home, or are dealing with major active flooding, prioritize safety first: leave the area if you smell gas, shut off water at the main if safe, and avoid contact with electrical outlets or panels near standing water. Call +1 (888) 395-2416 for guidance on next steps.

Related Services

Serving Queen Creek & Nearby Communities

Desert Vale Plumbing is based in Queen Creek and serves 10 communities across the East Valley.

Queen Creek San Tan Valley Gilbert Chandler Mesa Apache Junction Florence Gold Canyon Sun Lakes Tempe

Queen Creek is our home base, serving the 10 communities shown above.

Frequently Asked Questions

How can I tell if I have a hidden water leak?

A water bill that jumps without a usage change, a meter that keeps moving with everything off, warm or damp floor spots, and musty odors. A meter test is the fastest first check.

Why is my water bill suddenly high?

Often a hidden leak, but irrigation changes, a running toilet, or seasonal watering can also raise usage. A meter test with everything off is the quickest way to tell.

Can a plumber find a leak without cutting into walls?

In many cases, yes — acoustic listening equipment, moisture meters, and thermal imaging can narrow the location non-invasively. Some leaks still need limited targeted access to confirm.

How much does leak detection cost?

Depends on the property and diagnostic methods needed. Call +1 (888) 395-2416 and describe what you’re experiencing.

How do I use my water meter to check for a leak?

Turn off all fixtures, note the reading, wait 1–2 hours without using water, then check again. If it changed, water is flowing somewhere in the system.

What are signs of a leak behind a wall?

A stain that grows over time, soft or bubbling drywall, a musty smell, or the sound of running water when nothing is in use.

Who should I call for an unexplained high water bill?

Start with a meter test. If it confirms movement with everything off, call +1 (888) 395-2416 to schedule a leak detection visit.

Suspect a hidden leak in San Tan Valley?

Call +1 (888) 395-2416