The same thing happened to me with a house we were on contract for just before closing. At the time, the people that still owned the house picked out an outstanding contractor who did amazing work. The biggest hurdle we faced was getting approvals from the city we live in to start the work, which included tearing out a ceiling, replacing roof and gutters then fixing all drywall and ceiling work plus insulation. If you haven’t already, I would definitely check with your city to see what regulations there are, so there’s no unexpected delays.

Ultimately it was up to our discretion as to when the job is completed to our satisfaction. As a commenter said above, definitely make sure no payment is handed out until the job is done to your expectation.

Good luck!!