Make a safe site record
Note which room and unit are involved, when the moisture appears, whether it coincides with AC operation, and whether water is on the pipe surface, at a joint, near the drain or on the ceiling below. Take a close photo and one wider photo showing the location; avoid private documents or occupants. If water approaches electrical equipment or a ceiling becomes unsafe, stop using the affected equipment and arrange a qualified inspection.
Ask for separate checks
A technician can inspect the accessible pipe insulation for gaps or damage, the drain route and connections, and the surrounding air and operating conditions. The equipment type and manufacturer information determine what else is relevant. Do not ask for insulation replacement as the sole remedy before the source of water is located.
At Icon Bay, the DENAIR inspection recorded damaged pipe insulation alongside duct and plenum defects and mould (16266). This confirms that insulation condition mattered at that site. It does not establish the cause of every wet pipe or prove a leak inside concealed sections.
After the visit, request the observed moisture path, components checked, any inaccessible areas, the proposed correction and a repeat observation under the conditions that produced the complaint. A dry surface at one moment is not enough to close a recurring issue without explaining when the system was running.

Visible service pipework at a villa. This photograph does not diagnose the cause of moisture in another system.
Explore the relevant scope
Share the equipment, the rooms affected, previous work and available access. DENAIR can assess the relevant scope.