What the symptom may mean
The cause may lie within the appliance or its controls, at an accessible fitting, or in hidden heating pipework. A concealed leak should be investigated when appropriate checks and the history support that direction.
Useful details to share
- When the pressure changes
- Any earlier boiler findings
- Whether different zones behave differently
Use the information you already have. You do not need to investigate the pipework yourself, collect a special set of readings or choose equipment before contacting us.
Do not remove boiler covers or assume frequent topping up has resolved the fault.
How an investigation moves forward
The symptom is considered with the building layout and appropriate checks. Where the evidence supports a plumbing fault, the engineer can explain the proposed tracing and access. A visible wet patch or pressure reading alone does not establish the repair location.
The relevant service to explore is Central heating leak detection.
Useful reading
Understanding the residential package
For an agreed residential job, £1,400 includes investigation, specialist detection, necessary access, plumbing repair, parts, materials, testing and a Trace & Access report. The £100 booking deposit is deducted from that total. Decorative reinstatement is excluded.
See the full price and scope before arranging the visit. Shared networks and commercial premises need an individual quotation.