How the method contributes
The relevant section must be assessed and prepared before testing. A suitable tracer mixture is introduced under controlled conditions, and a detector checks relevant surfaces. Gas can travel through voids and different materials before emerging. Readings are considered alongside the system layout and other evidence to guide the next step.
Where it can be useful
- Concealed leaks beneath solid floors
- Quiet leaks with weak acoustic evidence
- Suitable isolated water or heating circuits
Its practical limitations
Part of an investigation, not a guess
The engineer chooses the methods that can usefully test a possibility. Results are compared with the property layout and symptoms before access is proposed. See the full investigation and repair process.
Related service
Tracer gas leak detection
A useful option for difficult concealed or buried water-pipe leaks.
When this method may be part of your visit
Tell us the symptoms, previous findings and any restrictions on water isolation. The engineer considers this method alongside the system layout and other available evidence. A test result must be interpreted before choosing an opening or repair.
Read the residential investigation and repair scope, or find your local coverage information.