“In home insurance, almost all policies exclude insects specifically from their coverage. If you have an HO-3 policy, your coverage is on an open-peril basis, but damage from insects, birds, and animals are excluded.
While the termites were unexpected, they won’t qualify under the sudden and expected damage clause. If you live in an area where termites are prevalent, most companies recommend additional termite insurance. This protects your home from any damage resulting from termites.
You’ll have to repair the damage and get rid of the termites before your insurance would allow you to purchase termite insurance; however, it is something to consider in the future.”