hi there
i have done quite a bit of this work, varying from private, commercial and public sector.
it paid us well, we built up relationships with loss adjusters, but it can be a closed shop in some instances, as insurnace companies tend to have a board of approved contractors, the question about whether they are the best people tp do the job is another discussion.
we provided all the flood cover for schools in two counties, and did very well, along with the floods three years ago.
hard work but great fun.
regards
martin