Plumbing
Leak Detection Service
Leak detection pinpoints the source of hidden water intrusion before it causes major damage, using non-invasive tools to avoid tearing open walls unnecessarily. Slow leaks inside walls, under slabs, or beneath floors can raise water bills, feed mold, and quietly rot framing for months. Technicians combine moisture meters, thermal imaging, and acoustic listening equipment to trace water back to its origin with minimal disruption. Pricing depends on how accessible the suspected area is and whether specialized slab or acoustic equipment is required. Because detection is far cheaper than repairing the damage a missed leak causes, it is a smart early step whenever signs point to hidden moisture. For property managers, precise detection avoids exploratory demolition across multiple units, while homeowners gain a clear location and cause that guides both plumbing repair and any insurance conversation that follows.
Typical leak detection cost
National 2026 pricing
Low
$150
Average
$500
High
$1,200
Local, licensed pros · you're never charged for the call.
When you need it
Signs you need this service
- An unexplained spike in the water bill
- Damp spots, stains, or warping with no visible source
- A musty smell without an obvious leak
- The sound of running water when everything is off
How it works
The service process
- 1
Interview and review
Symptoms and problem areas are discussed to narrow the search zone.
- 2
Moisture scanning
Meters and thermal imaging reveal wet zones behind finished surfaces.
- 3
Acoustic tracing
Listening equipment isolates pressurized leaks under slabs or in walls.
- 4
Source confirmation
The leak point is pinpointed and marked for targeted repair.
- 5
Findings report
The location and likely cause are documented for repair and any claim.
Pricing Detail
Leak Detection cost breakdown
| Item | Low | Average | High |
|---|---|---|---|
| Basic moisture and thermal scan | $150 | $300 | $500 |
| Acoustic wall or ceiling trace | $400 | $650 | $900 |
| Slab or complex leak location | $800 | $1,000 | $1,200 |
Typical timeline
Most detection visits take one to three hours. Complex slab or intermittent leaks may require an extended or return visit to confirm.
Equipment used
- Thermal imaging cameras
- Acoustic leak detectors
- Moisture meters
- Pressure test gauges
- Borescope cameras
Insurance
Detection to find the source of a covered loss is sometimes reimbursable, but routine plumbing inspections are usually an out-of-pocket expense.
FAQ
Frequently asked questions
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