You are still responsible, even if someone else takes the call or goes to site.
WhoWhat they do
You, the person in charge of the jobOwn the job. Decide how urgent it is. Arrange technical work. Get decisions. Speak to the client. Check the job is finished properly.
Intake and adminSofia, or the person chosen for intake, writes down the call. Admin helps with records and appointments. Whenever a job is handed over, say who owns it.
AccountsCheck what is owed, proof of payment (POP), invoices and credits. Accounts saying "paid" does not replace an inspection.
Inspector and fitterInspect or repair only what was approved. Give measurements, photos and test results. Report the same day.
Consultant and technical teamExplain the original design. Help find the cause and the fix. The factory or supplier confirms parts and dates.
ManagementApproves exceptions, disputes and anything above your limit.