Case Study
Underfloor Heating Leak Detection in Thames Ditton
Pressure Loss Narrowed To An Underfloor Heating Circuit
A plumber had identified pressure loss on one underfloor heating circuit following a recent project. Pro Leak Detection was instructed to investigate further, and the combined testing narrowed the issue to an area beneath the wood flooring.
Google Reviews ★★★★★ 5.0 Rating 70+ Reviews Read Reviews- ✓ Leak Located
- ✓ Four Investigation Methods Used
- ✓ Area Of Concern Identified
- ✓ Findings Documented In Report
The Challenge
Pressure Loss Identified On One Underfloor Heating Circuit
The client's plumber had identified a loss of pressure on one of the underfloor heating circuits following a recent project. Pro Leak Detection was instructed to investigate the pressure loss and locate the area responsible, without assuming in advance where the circuit was losing pressure.
- ✓ A plumber had identified pressure loss on one underfloor heating circuit
- ✓ The affected circuit had not been narrowed down further
- ✓ A specialist investigation was needed to locate the area responsible
- ✓ No assumptions were made about the likely location before testing
Investigation
Investigation Evidence
Selected photos and videos from the investigation sequence showing the evidence-led approach used on site.
Investigation
A Combined Investigation Of The Heating Circuit
Pressure testing, tracer gas, thermal imaging and a visual inspection were used together to assess the underfloor heating circuit. Each method contributed different evidence, and the combined results were used to narrow down the area responsible for the pressure loss.
Thermal Imaging
An infrared camera could help identify temperature differences along the underfloor heating circuit that might indicate where pressure was being lost.
Thermal imaging was carried out across the affected underfloor heating circuit.
No individual thermal reading was recorded separately, so this method is treated as part of the combined evidence rather than standalone proof.
MethodTracer Gas
Tracer gas could help trace the circuit and narrow down the area associated with the pressure loss.
Tracer gas was introduced into the underfloor heating circuit and tested at the manifold and surrounding areas.
No separate tracer gas reading was supplied, so this method is presented as part of the wider investigation rather than an independent finding.
MethodPressure Testing
Pressure testing could help confirm the pressure loss reported by the plumber and support the wider investigation of the circuit.
Pressure testing was carried out on the affected underfloor heating circuit as part of the investigation.
No individual pressure reading was recorded, so this method is treated as one part of the combined evidence used to reach the conclusion.
MethodVisual Inspection
A visual inspection helped assess accessible areas of the circuit and surrounding property before the combined findings were reached.
A visual inspection was carried out as part of the on-site investigation.
The inspection supported the wider evidence rather than independently identifying the area of concern.
Findings
An Area Of Concern Identified Beneath The Wood Flooring
The combined investigation identified an area of concern beneath the wood flooring associated with the underfloor heating circuit's pressure loss. This finding was reached from the methods used together rather than from any single test.
- An area of concern was identified beneath the wood flooring
- The area was linked to the underfloor heating circuit's pressure loss
- The finding came from the combined investigation rather than any single method
Outcome
Findings Documented For The Client
- ✓ Leak Located
- ✓ Four Investigation Methods Used
- ✓ Area Of Concern Identified
- ✓ Findings Documented In Report
The investigation narrowed the pressure loss to an area of concern beneath the wood flooring associated with the underfloor heating circuit. A leak detection report documenting the findings was provided to the client.
Investigation Insights
What This Investigation Shows
- ✓A plumber identifying pressure loss on a heating circuit is a useful starting point, but locating the affected area usually needs specialist testing.
- ✓Combining pressure testing, tracer gas, thermal imaging and a visual inspection can narrow down a concealed underfloor heating issue without assuming where it is in advance.
- ✓An underfloor heating circuit can lose pressure in an area that isn't visible from the room above, which is why testing is carried out before any flooring is disturbed.
- ✓Identifying the area responsible is a distinct step from repairing it, giving homeowners a documented basis for planning next steps.
Local Coverage
Leak Detection In Thames Ditton
This investigation was completed in Thames Ditton, Surrey.
We regularly carry out leak detection investigations across Thames Ditton and surrounding areas.
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