Termite damage is usually not covered under any home insurance policy and will require the homeowner to pay out of pocket.
You should have your home sprayed for termites by an exterminator at least once a year. The fee you pay for an exterminator to protect your home from termites will save thousands in damage to your home.
Also install a sentricon system in your yard around your house to bait and kill the termites before they get to your home.