Prepare a simple timeline
Record when the first sign appeared, what changes it and what has already been checked. Include previous reports and useful photographs.
Make existing access available
Locate known valves, meters, service hatches and heating manifolds. Explain where permission is needed for another flat, shared area or neighbouring land. Do not create new openings just to prepare.
Clarify the instruction
Confirm the affected property, system and authorised contact. Tell the investigator about sensitive finishes and any reporting requirements before work is agreed.
Explore the relevant service
General information for planning an investigation. The property, instruction and findings determine the appropriate work.