Cost Guide
How Much Does Leak Detection Cost? (2026 Guide)
Compare typical leak detection costs, see what can change the total, and learn how to compare itemized quotes for equivalent work.
On this pageTypical costs
Plumbing Advisors Editorial TeamEditorial StandardsFigures reviewed August 2, 2026Source-CheckedTypical pricing
Electronic / acoustic leak detection
$200–$650
Electronic / acoustic leak detection typically costs $200 to $650. The final cost depends on the confirmed scope, access, parts or equipment, labor, timing, and related work.
Leak Detection costs
| Project | Typical cost range |
|---|---|
| Electronic / acoustic leak detection | $200–$650 |
| Slab leak location | $320–$970 |
| Camera / video pipe inspection | $215–$720 |
| Thermal (infrared) imaging | $190–$630 |
| Complex or multi-system detection | $520–$1,675 |
Service-call fees
| Service | Typical cost range |
|---|---|
| Leak detection service call / diagnostic | $125–$410 per visit |
Hourly labor rates
| Labor | Typical cost range |
|---|---|
| After-hours / emergency detection | $165–$430 per hour |
What affects the cost
- How accessible the suspected leak location is
- Whether the leak is in a supply line, drain, or under a slab
- The detection methods and equipment the leak requires
- How widespread the moisture or damage has become
- Whether the home has finished walls, floors, or a slab to work around
- After-hours or emergency timing for a fast-spreading leak
- Local labor rates in your area
What is typically included
- Review of the signs and history you have noticed
- Inspection of likely spots under sinks and around appliances
- Use of specialized tools such as acoustic, moisture, and camera equipment
- Pinpointing the leak's location to limit demolition
- Identifying whether it is a supply, drain, or under-slab leak
- A clear explanation of the access and repair plan
Ways to manage the cost
- Run the simple water-meter test yourself before you call to confirm a leak
- Ask for the findings and a repair plan in writing before any work begins
- Ask whether the detection fee is credited toward the repair
- Get itemized quotes and compare what each method covers
- Act early, since locating a leak sooner usually limits damage and overall cost
Cost questions
Why do leak detection prices vary so much?
Price depends on where the leak is, how accessible it is, and which tools are needed. A simple supply-line leak is quicker to find than a slab leak under the foundation, and after-hours calls for a fast-spreading leak cost more.
Is the detection fee applied to the repair?
Many plumbing professionals credit some or all of the detection fee toward the repair if you hire them to fix the leak. It is worth asking up front and getting the answer in writing along with the repair estimate.
What should a leak detection quote include?
Ask for the inspected scope, labor, parts or equipment, access work, permits or inspections when applicable, restoration, exclusions, and change-order terms to be listed separately.
How should I compare leak detection quotes?
Compare proposals for the same inspected scope. A lower total may exclude testing, access, materials, restoration, or follow-up work that another proposal includes.
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