Your insurance is only as good as your agent.
Local construction costs
Standard homeowners policies provide coverage for disasters such as damage due to fire, lightning, hail, explosions and theft. They do not cover floods, earthquakes or damage caused by lack of routine maintenance.
Replacement cost policies
Most policies cover replacement cost for damage to the structure. A replacement cost policy pays for the repair or replacement of damaged property with materials of similar kind and quality. There is no deduction for depreciation–the decrease in value due to age, wear and tear, and other factors.
Guaranteed or extended replacement cost coverage
After a major hurricane or a tornado, building materials and construction workers are often in great demand. This can push rebuilding costs above homeowners policy limits, leaving you without enough money to cover the bill. To protect against such a situation, you can buy a policy that pays more than the policy limits.
Building codes are updated periodically and may have changed significantly since your home was built. If your home is badly damaged, you may be required to rebuild your home to meet new building codes. Generally, homeowners insurance policies (even a guaranteed replacement cost policy) won't pay for the extra expense of rebuilding to code. Many insurance companies offer an Ordinance or Law endorsement that pays a specified amount toward these costs. (An endorsement is a form attached to an insurance policy that changes what the policy covers.)