Maintenance & air-path care
Cleaning is a component scope: the JVT example
JVT records completed FCU washing and insulation. It also records unfinished joint sealing and grille follow-up. This supports specifying the components included in a cleaning visit; it does not prove that washing resolved a cooling or odour complaint.
Defect work can extend beyond cleaning: Icon Bay
The Icon Bay inspection found duct and plenum defects, mould and damaged pipe insulation. The plan included valve and duct replacement, servicing, insulation and new grilles. Minimal ceiling openings and carry-in dimensions constrained the work. A cleaning-only proposal would omit part of that recorded scope.
A physical restriction needs its own question: Bluewaters
A kinked flexible connection was found at a Bluewaters grille, with ceiling height and hatch access constraining the arrangement. Ask whether the complaint involves contamination, an obstructed connection or wider installation work; the recorded kink is not a dirty-filter diagnosis.
Agree what cleaning will be checked against
Identify the equipment, accessible surfaces and affected rooms before agreeing the visit. Ask which defect work is excluded and what operating observation will be recorded afterwards. Odour or weak airflow alone cannot establish the cause at another property.

Icon Bay duct components awaiting installation; staged materials do not establish completion.
Explore the relevant scope
Share the equipment, the rooms affected, previous work and available access. DENAIR can assess the relevant scope.