Prepare the right starting point
Name the authorised contact and identify affected units, plant areas and isolation controls. Where water crosses between flats, coordinated entry can prevent avoidable gaps in the investigation.
Agree authority and scope
Shared-system and wider building work is scoped separately. The residential price should not be assumed to cover a building-wide instruction.
A clear record at the end
The Trace & Access report brings relevant checks, access and plumbing work into one record. Explain any reporting requirements before the visit, and retain the document with the repair details.