Water Damage cause by faulty plumbing work

[Manco Snead]

Greetings,

Would appreciate any feedback here. Plumber replaced a laundry shutoff in my OOS rental a few months ago; yesterday there was very large water leak which I believe to be from this shutoff. If I verify this as correct, and plumber's work failed, how can I approach getting my expenses for this damage covered by them.

If it is not the plumber's work does anyone have tips on getting my insurance to cover it? The work (servpro, plumbing repair, etc.) will already have been done so this will be reimbursement.

Much thanks.