Choosing the right approach
A damp patch is a starting point for investigation, not a diagnosis on its own. Record its location, changes over time and any connection with rainfall, plumbing use or occupancy. Review nearby roofs, terraces, openings, pipework and ventilation as appropriate to the evidence. Agree targeted inspection and the repair sequence before specifying new plaster or paint, so that the surface treatment follows the work on the identified cause.
What the specification should cover
- Pattern and history of the moisture
- Targeted inspection scope
- Evidence for the proposed cause
- Repair, drying and reassessment sequence
- Replacement of affected finishes
Separate investigation from reinstatement
An investigation may reveal a different cause from the one initially suspected. Set a clear first scope for inspection and reporting, then approve the repair from those findings. Agree what evidence will be used to assess recovery before closing inspection openings or restoring sensitive finishes.
Questions about damp investigation & leak repairs
Will repainting a damp patch solve the problem?
Not unless the underlying cause has been resolved and the substrate is suitable for the chosen finish. A coating may change the appearance without stopping the moisture. Base the work on an assessment of the actual property and follow-up observations.