Quote, failure report, photo set
Supplied with quote and invoiceThe itemised quote
The failed component named and priced. Labour broken out against the work, not bundled into a single line. Diagnosis itemised separately, so what you're authorising is visible down to the part number, and so is what you're not.
The written failure report
What failed, how, and why, in plain language a claims handler can read and a dispute can lean on later. Wear, fatigue, impact or forced operation: the distinction that decides a roof claim is the one a generalist's quote usually skips.
The photo set
Before the work, during teardown — the failed part on the bench, not just a wet seat — and after completion. The set travels with the quote and again with the invoice, so the file stands on its own if it's ever reopened.