When you own a home, you need homeowner's insurance so that you and the lender will be protected against financial loss if there's damage or loss of property.

Homeowner's insurance covers your home's structure and your possessions. The basic standard policy, or named perils policy, offers limited protection, to cover damage that results from fire and theft. More comprehensive plans with broader coverage are available, but have higher premiums, or payments.
Every policy has a deductible, which is the amount you pay for a loss before the insurance company covers any of the remaining damage. Deductibles can vary from a few hundred to a few thousand dollars, and there's a direct relationship between the size of the deductible you choose and what you pay for insurance.
As a general rule, you should insure your home for at least 80% of its replacement value, or what it would cost to rebuild your home in today's dollars. You might sleep better, however, if you insure your home for 100% of its replacement value. Keep these two things in mind, though:
Things that aren't covered in basic plans: losses resulting from riots, police actions, war, nuclear explosions or "Acts of God." You can sometimes add a rider, or an amendment to your policy, which will cover selected situations that normally are excluded, such as wildfires and earthquakes.