Mitigation closes when the log says dry.
A mitigation company sets equipment, monitors it, and pulls it when the moisture readings reach dry standard. Then they invoice. If the rebuild starts on that signal alone, the file has one document behind it, the drying log, and the log only knows what the meter was pointed at.
What the walkthrough found.
On this living room the first mitigation had been closed out and the rebuild was ready to be scoped. The walkthrough happens before anything is priced: every room, with a moisture meter and a camera. Behind the flood cut, the framing still read wet. Above the cut, there was visible growth on the back of drywall that had been left in place. Both were metered, photographed and recorded in the file that day.
Who gets called, in what order.
An estimator does not diagnose mold and does not remove it. In Texas, assessment and remediation are separate licensed trades, and the assessment has to come first. So the homeowner was shown the photos and the readings, a licensed mold assessor came out to test and write the protocol, and a licensed remediation contractor did the removal to that protocol. Clearance testing came back clean before anyone hung new drywall.
The second scope.
That work is secondary damage: it exists because of the original loss, and it was not in the first estimate because nobody had opened the wall yet. The remediation contractor submitted their own supplement for it. What made that supplement straightforward was the file: moisture readings, dated photos, the assessor's report and protocol, and the clearance results, all from the same property, in order. I write and document the scope. The claim is the homeowner's and the supplement is the contractor's. The documentation is what lets both of them stand on it.
What it would have cost to skip.
New drywall over wet framing and growth does not stay new. Six months later it is a bigger loss, in a finished room, with a harder argument about which claim it belongs to. A second walkthrough before the rebuild is the cheapest line on the whole file.
What to do with it.
If your mitigation has been closed and the rebuild is about to start, have the property walked and metered before the first sheet goes up. If something is found, it goes to a licensed assessor, not to whoever is standing there with a truck. Send me the address and the mitigation paperwork and I will tell you whether the file is ready to build from.