Water Leak Detection in Arlington, TX
Hear water running but can't find it? Our electronic and acoustic equipment pinpoints hidden leaks — in walls, under slabs, and underground — without tearing up your home.

Family
Owned
Licensed
& Insured
Free
Estimates
24/7
Emergency
Up-Front
Pricing
Arlington
& All DFW
Finding Leaks Before They Become Disasters
The most expensive leak is the one you don't know about. A pinhole leak behind a wall or under a slab can run for weeks before you notice — and by then you may be dealing with mold, a warped floor, foundation issues, and a water bill that doubles. In North Texas, where the vast majority of homes sit on concrete slab foundations, an undetected slab leak can quietly undermine the very ground your house rests on.
Our detection equipment locates leaks without demolition. We use acoustic sensors that amplify the sound of water escaping through pipe walls — audible to our gear even through a concrete slab or drywall. For slab leaks specifically, we use electromagnetic pipe locators to trace the exact path of supply lines under your foundation, then narrow the leak down to within a few inches. That precision means we only ever cut where we genuinely need to.
Slab leaks are one of the most common leak types we find across the metroplex. On homes built from the 1960s through the 1980s, copper supply lines were often run through or under the slab, and decades of contact with concrete and minerals cause pinhole leaks to develop. Caught early, we can frequently reroute the affected line overhead and abandon the section under the slab — avoiding the cost and mess of jackhammering through your floor.
Common Leak Types We Detect
Slab leaks (supply lines under a concrete foundation), wall leaks (pinhole leaks in concealed pipes), underground main line leaks (between the meter and the house), irrigation and hose-bib leaks, and toilet or fixture supply-line leaks. Each one calls for a different detection method — we use the right tool for the situation rather than a one-size-fits-all approach.
- Electronic acoustic detection — pinpoints leaks through walls, floors, and concrete slabs
- Electromagnetic pipe tracing — locates the exact path of concealed and underground pipes
- Slab leak detection — non-invasive location of leaks under concrete foundations
- Thermal imaging — identifies moisture patterns behind walls and under floors
- Main line leak detection — locates breaks between the meter and your home

Quick Info
Typical Cost
$150–$500
Timeline
Same-day service
Warranty
Guaranteed accuracy
Know the Warning Signs
Signs You Need Water Leak Detection
Catch these early to avoid a bigger, more expensive problem down the line.
Unexplained Spike in Your Water Bill
A jump in your bill with no change in usage almost always means a hidden leak. The earlier we find it, the less damage and waste add up.
Watch ThisSound of Running Water
Hearing water move when every fixture is off is a classic sign of a hidden leak — often inside a wall or under the slab.
Watch ThisWarm Spot on the Floor
A warm or damp patch on a slab floor frequently points to a hot-water slab leak underneath. We can trace and confirm it.
Act NowCracks in Walls or Flooring
A persistent slab leak can shift the soil under your foundation, leading to new cracks in drywall, tile, or the floor. This needs prompt attention.
Act NowMusty Smell or Mold
A musty odor or visible mold on walls or baseboards usually means moisture is feeding it — often from a concealed leak.
Watch ThisLow Water Pressure
A leak upstream of your fixtures bleeds off pressure. If pressure drops across the whole house, a hidden supply-line leak is a likely culprit.
Watch ThisTransparent from Start to Finish
How Our Service Works
Listen and Locate
We start with acoustic and electronic detection to narrow the leak to a specific area without opening any walls or floors.
Trace the Line
Using electromagnetic locators, we map the exact path of the affected pipe — critical for pinpointing slab and underground leaks.
Confirm the Source
We verify the exact leak point so any access opening is as small and precise as possible. No exploratory demolition.
Repair Options
We explain your options — spot repair, reroute, or line replacement — with honest pricing for each so you can choose.
Listen and Locate
We start with acoustic and electronic detection to narrow the leak to a specific area without opening any walls or floors.
Trace the Line
Using electromagnetic locators, we map the exact path of the affected pipe — critical for pinpointing slab and underground leaks.
Confirm the Source
We verify the exact leak point so any access opening is as small and precise as possible. No exploratory demolition.
Repair Options
We explain your options — spot repair, reroute, or line replacement — with honest pricing for each so you can choose.
The Ernie’s Difference
Why the DFW Metroplex Trusts Ernie’s
No Exploratory Demolition
We locate the leak precisely before opening anything, so you're not paying to repair guesswork.
Slab-Leak Specialists
On North Texas slab foundations, we know where copper supply lines fail and how to find them fast.
Reroute Over Jackhammering
When it makes sense, we reroute a leaking slab line overhead to avoid breaking through your foundation.
Guaranteed Accuracy
We stand behind our locates. If we mark a leak, that's where it is — no second guessing.
Related Services
Customers who needed this service also needed these.
Got Questions?
Water Leak Detection FAQ
Answers from our master plumbers — based on real questions from the DFW Metroplex homeowners.
We use acoustic sensors that amplify the sound of escaping water through walls and slabs, plus electromagnetic locators that trace the exact path of the pipe. Together they let us pinpoint the leak to within a few inches before we open anything, so any access cut is small and precise rather than exploratory.
Water Leak Detection Across the DFW Metroplex
Same-day service available in all areas. Fast response across the DFW Metroplex.
Need Water Leak Detection?
Call us 24/7 for same-day service. Free estimates on all projects. No hidden fees, no surprises — just honest plumbing.
Licensed & Insured • Satisfaction Guaranteed • Free Estimates
