Underfloor leak detection does not have a fixed standard price. The cost depends mainly on the type of floor, how accessible the suspected pipework is, the detection method needed and whether the leak can be isolated to one area. Detection is normally priced separately from any repair, flooring removal or reinstatement work.
A professional assessment may involve checking the water meter, pressure-testing sections of the plumbing system and using specialist equipment to trace moisture or escaping water. Depending on the property and symptoms, this can include acoustic detection, thermal imaging or tracer gas. The most suitable method is determined by the pipework, floor construction and available evidence rather than selected as a one-size-fits-all service.
Several factors can affect the final quotation:
- Floor construction: suspended timber floors, concrete slabs and screeded floors present different access requirements.
- Pipework location: pipes beneath a floor, within insulation or below a solid surface may require more detailed tracing.
- Extent of the search: a clearly defined wet area may be easier to investigate than symptoms appearing across several rooms.
- Access to the property: furniture, floor coverings, fitted units and restricted voids can affect the time and equipment required.
- Type of leak: a supply pipe, heating circuit or concealed waste pipe may need a different testing process.
- Documentation: a written report, readings or information for an insurer may be included or charged as an additional requirement, so this should be confirmed beforehand.
The detection charge may identify the source without including the cost of opening the floor. If lifting boards, removing sections of flooring, excavating screed or accessing a concealed pipe is necessary, those works should be explained and priced separately. The same applies to replacing pipework, drying affected materials and restoring flooring after the plumbing repair.
When comparing quotations, check exactly what is included. Ask whether the price covers the initial investigation, testing, equipment, the findings, a written report and any follow-up visit. Also ask how additional work will be authorised if the leak is found beneath a fixed surface. A clear quotation helps distinguish the cost of locating the leak from the cost of putting the affected area right.
It is useful to provide information before the assessment, including when the problem began, whether the water meter moves when all taps are closed, which areas feel damp and whether the heating or water pressure has changed. Photographs of staining, raised flooring or visible moisture can also help establish the likely scope of the investigation.
Ideal Plumbing Services can assess the circumstances and explain the likely detection requirements before proceeding. With more than 20 years’ experience, the company provides residential plumbing support across Birmingham and the West Midlands, with pricing explained before further work is undertaken and no hidden charges.

