Slab Leak Detection
Investigate the signs of a possible leak beneath your concrete slab and find out where the problem is most likely located.
Detection technology
Electronic Leak Detection
Leak signals under a concrete floor are often faint and easy to confuse with household noise. Electronic leak detection equipment helps amplify, filter, and compare those signals, so the search can be guided by readings rather than guesswork.
- Non-Invasive Detection Options
- Acoustic & Electronic Equipment
- Focused Leak Location
- Residential & Commercial Properties
When electronic detection helps
Electronic equipment is especially useful when a hidden leak is suspected but the evidence is subtle:
- A confirmed water loss with no visible source
- Leak sounds that are faint or masked by background noise
- Large floor areas that need to be surveyed systematically
- Pipes whose route under the slab is uncertain
- Situations where results need to be cross-checked
Electronic detection is one tool among several. We choose methods based on your home and symptoms. Learn more in how professional slab leak detection works.
How electronic leak detection works
Water escaping a pressurized pipe creates vibration and sound. Electronic leak detectors use sensitive sensors and amplifiers to pick up those signals, and filters to help separate them from background noise such as appliances, HVAC, and traffic. Many units display signal strength, which makes it easier to compare readings at different points on the floor and identify where the signal peaks.
Electronic equipment can also support line tracing — mapping where a pipe actually runs beneath the floor — which matters because the shortest route between two fixtures is rarely the one the installer took.
Electronic detection works hand in hand with acoustic listening and the broader diagnostic assessment. Using more than one approach helps confirm findings.
What you can expect
- A review of the symptoms and confirmation of water loss
- Isolation of the affected line before locating begins
- A systematic survey of the floor above the suspected route
- Comparison of readings to identify the strongest signal area
- An explanation of findings and how they were confirmed
Honest about limitations. Electronic detection is sensitive to conditions. Pipe material, depth, flooring, and background noise all affect signal quality, and plastic piping can be more challenging. We will explain any limitations that apply to your home.
Why Locating the Leak First Matters
Accurate detection gives you better information before any repair decision.
Readings, not guesses
Signal strength readings help compare locations objectively.
Filter out the noise
Filtering helps separate leak signals from everyday household sounds.
Follow the pipe
Line tracing helps confirm where the affected pipe actually runs.
How the Process Works
A step-by-step approach from your first call to clear findings.
Describe the concern
Tell us what you are noticing, where, and when it started.
Initial assessment
We review the symptoms and check fixtures, the water heater, and the meter.
Locate the leak
We isolate lines and use suitable equipment to narrow down the leak area.
Findings & next steps
We explain what we found, how confident we are, and your options.
Frequently Asked Questions
Common questions about electronic leak detection.
Yes. The equipment works from the surface and does not require opening floors or walls. Some steps may involve briefly shutting off water while lines are isolated.
They are closely related. Acoustic detection focuses on listening to leak sounds; electronic detection uses electronic sensors, amplification, filtering, and readouts to help interpret those signals. In practice they are often used together.
It can be more challenging, because plastic pipe absorbs leak vibrations more than metal pipe. Other methods may be needed to cross-check results. We will tell you if your piping affects the approach.
Drain lines are not under constant pressure, so they do not produce the same continuous signals. Drain leaks are usually investigated with different methods. Tell us which symptoms you are seeing and we will advise.
It helps narrow down the most likely leak area. Accuracy depends on conditions, and we will explain how confident we are in the location we mark.
Other Detection Services
Related services that may be relevant to your situation.
Under-Slab Water Leak Detection
Targeted investigation of pressurized water lines that run below the foundation, to narrow down the leak area before any access work.
Acoustic Leak Detection
Sensitive listening equipment used to follow the sound of water escaping a pressurized line and pinpoint where it is loudest.
Leak Location & Diagnostic Assessment
A structured assessment that brings the symptoms, plumbing layout, and test results together into clear findings and next steps.
Learn More Before You Call
Practical guides to help you understand what you are seeing and what comes next.
Detection
How Professional Slab Leak Detection Works
What actually happens during professional leak detection — the common methods, what each one can and cannot tell you, and why the approach varies from home to home.
Warning Signs
How to Tell Whether You Have a Slab Leak or Another Plumbing Leak
Fixture, supply-line, drain, and slab leaks can look alike. Here is how their symptoms differ, why they overlap, and which checks help you narrow things down.
Detection
What to Expect During a Slab Leak Inspection
A walk-through of a typical slab leak inspection, what you will be asked, how to prepare your home, and what you should have in hand when it is done.
Concerned About a Hidden Slab Leak?
Tell us what you have noticed. We will talk through the symptoms, explain how an assessment works, and help you decide on the right next step.