Case Study
High Water Bill Investigation in Godalming Finds No Mains Leak
Unexpectedly High Water Bill Investigated
Pressure testing and isolation pressure testing found no evidence of a mains water leak during the visit. The findings were documented so the customer could ask the water provider to investigate the reported usage further.
Google Reviews ★★★★★ 5.0 Rating 70+ Reviews Read Reviews- ✓ No Leak Identified
- ✓ Pressure Testing Completed
- ✓ Isolation Testing Completed
- ✓ Report Provided
The Challenge
Unexpectedly High Water Bill Reported
The customer received an unexpectedly high water bill from their water provider and wanted to establish whether a concealed mains water leak could be contributing to the reported usage. A high bill can justify testing the supply system, but the bill alone cannot confirm that water is escaping from hidden pipework.
- ✓ The water provider issued an unexpectedly high bill
- ✓ A concealed mains water leak needed to be checked
- ✓ The cause of the reported water usage was not established before testing
- ✓ The customer needed documented findings for the water provider
Investigation
Investigation Evidence
Selected photos and videos from the investigation sequence showing the evidence-led approach used on site.
Investigation
Testing The Water System For Evidence Of Loss
The investigation used visual inspection, pressure testing, isolation pressure testing and tracer gas to assess the suspected mains water issue. Pressure and isolation testing provided the recorded finding: neither identified evidence of a leak during this investigation. Tracer gas was listed among the methods used, but no separate tracer gas result was recorded, so it was not treated as proof of a leak or of its absence.
Visual Inspection
The water system and accessible test points needed to be reviewed before controlled testing began.
A visual inspection was completed as part of the high water bill investigation.
This established the context for pressure and isolation tests without assuming the bill itself proved a concealed leak.
MethodPressure And Isolation Testing
Controlled testing was appropriate to check whether the water system showed evidence consistent with pressure loss from a leak.
Pressure testing and isolation pressure testing did not identify evidence of a mains water leak during the visit.
The negative test result gave the customer documented evidence that no mains leak had been found under the investigation conditions.
MethodTracer Gas Method
Tracer gas was selected as one of the recorded methods for assessing concealed mains pipework.
Tracer gas equipment was present on site and tracer gas was included in the engineer's recorded methods.
No separate tracer gas result was recorded, so the conclusion remained based on the confirmed pressure and isolation testing findings.
Findings
No Pressure-Test Evidence Of A Mains Leak
Pressure testing and isolation pressure testing did not identify evidence of a mains water leak. The accurate conclusion is that no leak was found during this investigation. It is not an absolute guarantee that a leak could never exist under different conditions or develop later; it records what the completed tests showed at the time of the visit.
- Visual inspection and controlled system testing were completed
- Pressure testing did not identify evidence of a leak
- Isolation pressure testing did not identify evidence of a leak
- No mains water leak was discovered during the investigation
Outcome
Findings Documented For Water Provider Review
- ✓ No Leak Identified
- ✓ Pressure Testing Completed
- ✓ Isolation Testing Completed
- ✓ Report Provided
The customer was informed that the investigation had not identified a mains water leak. A written report was provided so the findings could be sent to the water company for further investigation of the reported water usage.
Investigation Insights
What This Investigation Shows
- ✓An unexpectedly high water bill can justify checking for a concealed supply leak, but the bill alone does not prove that a leak exists.
- ✓Pressure and isolation testing can provide useful evidence even when the result is that no leak is identified.
- ✓A negative finding applies to the investigation conditions at the time and should not be presented as an unlimited guarantee.
- ✓Documented test findings can help a water provider review reported consumption without assuming the cause.
Local Coverage
Leak Detection In Godalming
This investigation was completed in Godalming, Surrey.
We regularly carry out leak detection investigations across Godalming and surrounding areas.
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