Slab Leak Detection
Investigate the signs of a possible leak beneath your concrete slab and find out where the problem is most likely located.
Clear findings, clear next steps
Leak Location & Diagnostic Assessment
Sometimes the hardest part of a hidden leak is making sense of the clues. Our diagnostic assessment brings together your symptoms, the plumbing layout, and test results to determine what is happening and where — and explains it in plain language.
- Non-Invasive Detection Options
- Acoustic & Electronic Equipment
- Focused Leak Location
- Residential & Commercial Properties
Who this assessment is for
A diagnostic assessment is a good starting point when the situation is unclear:
- Symptoms that could be a slab leak — or something else
- Multiple clues that do not quite add up
- Recurring moisture after previous repairs
- Property managers who need clear findings for owners or tenants
- Homeowners who want answers before deciding on repairs or filing a claim
If you are not sure whether you need a slab leak specialist at all, start with our guide to checking for unexplained water usage.
What the assessment covers
This is our most structured service. Rather than starting with a single tool, it works through the problem step by step:
- Symptom review. What you have noticed, where, and when — plus bills and any previous repairs.
- System evaluation. Fixtures, the water heater, visible plumbing, irrigation connections, and meter observation.
- Isolation. Testing sections of the system to identify which line is affected.
- Location. Applying suitable detection methods — such as acoustic and electronic detection, supported where appropriate by moisture readings or thermal imaging — to narrow down the leak area.
- Findings. A plain-language explanation of what was found, what was ruled out, how confident we are, and reasonable next steps.
Moisture readings and thermal images are useful supporting evidence, but neither proves a leak on its own. Thermal camera maker Teledyne FLIR notes that a pattern that looks like moisture does not guarantee water is present, which is why we cross-check results.
What you can expect
- A thorough conversation about the symptoms and property history
- Systematic checks of fixtures, the water heater, and the meter
- Line isolation to identify the affected part of the system
- Surface-based leak location using suitable methods
- A clear explanation of findings, limitations, and next steps
Honest about limitations. A diagnostic assessment gives you the best available picture based on the evidence, but some situations — very small or intermittent leaks, for instance — can remain uncertain. If so, we will explain what we found and what further testing could help.
Why Locating the Leak First Matters
Accurate detection gives you better information before any repair decision.
Findings you can share
Useful for repair contractors, property owners, and conversations with your insurer.
Ruled-out causes
Knowing what is not the problem is as valuable as knowing what is.
Plain-language answers
We explain the evidence and our confidence level — no jargon.
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 leak location & diagnostic assessment.
Slab leak detection focuses on locating a suspected leak beneath the slab. A diagnostic assessment takes a broader view when the cause is unclear, working through symptoms and test results to determine what is happening — which may or may not be a slab leak.
Ask us when you call about the format of findings for your visit. Written notes are useful for repair contractors, property owners, and insurers.
Thermal imaging can be a helpful supporting tool, particularly for hot-water lines, when conditions suit it. It does not detect water directly, so we treat it as one piece of evidence alongside other methods. Ask us which methods suit your situation.
We work with homeowners, property managers, and commercial property owners. Call to describe the property and the concern so we can confirm scope and scheduling.
That is useful information. We will explain what was ruled out and where the evidence points instead — for example, a fixture, an irrigation line, or a drain — so you know who to call next.
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.
Electronic Leak Detection
Electronic detection equipment that helps amplify and interpret leak signals that are hard to pick up without specialized tools.
Acoustic Leak Detection
Sensitive listening equipment used to follow the sound of water escaping a pressurized line and pinpoint where it is loudest.
Learn More Before You Call
Practical guides to help you understand what you are seeing and what comes next.
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.
Homeowner Guides
Can a Slab Leak Cause Foundation or Flooring Problems?
What a persistent under-slab leak can do to flooring, indoor moisture, and the soil below — explained carefully, without overstating the risks.
Costs & Insurance
Does Homeowners Insurance Cover Slab Leaks?
There is no universal yes or no. Here are the distinctions insurers commonly draw — and how to document a suspected slab leak for a claim.
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.