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What Is the Difference Between Flood Insurance and Home Insurance?

Last updated October 26, 2026

The short answer

What Home Insurance Covers

Home insurance generally protects your house and belongings from perils listed in your policy, like fire, wind, theft, and certain types of water damage. This often includes water that comes from a sudden, accidental event inside your home, such as a burst pipe, an overflowing bathtub, or a malfunctioning appliance. The damage is typically sudden and not the result of long-term neglect.

For example, if a washing machine supply line breaks and floods your laundry room, your home insurance may help pay for the cleanup and repairs. This type of water damage is considered an internal, accidental occurrence. However, water that enters from the outside, especially from the ground or a body of water, is usually treated differently and often excluded from standard policies.

  • Burst pipes
  • Roof leaks from storm damage
  • Overflowing sinks or bathtubs
  • Appliance leaks
  • Sudden, accidental water damage

What Flood Insurance Covers

Flood insurance is a separate policy that covers damage caused by rising water from outside your home. This includes heavy rain, overflowing rivers or lakes, storm surges from coastal storms, and melting snow. Flood insurance is typically offered through the National Flood Insurance Program (NFIP) or private insurers, and it is designed to pay for the cleanup and repair of flood-related damage.

Flood insurance usually covers the structure of your home and your belongings, up to the limits you choose. It does not cover damage from internal leaks or sewer backups unless you add that coverage separately. If your home is in a flood zone, your mortgage lender may require flood insurance, but even outside high-risk areas, flooding can happen.

  • Rising water from heavy rain
  • Overflowing rivers or streams
  • Storm surge from coastal storms
  • Melting snow and ice
  • Groundwater seepage

Key Differences in Coverage

The main difference is the source of the water. Home insurance covers water that comes from inside your home, while flood insurance covers water that enters from outside. A standard home policy usually excludes flood damage, so if a river overflows and floods your basement, your home insurance likely will not pay for it.

Flood insurance also works differently in terms of deductibles and limits. Flood policies often have separate deductibles for the building and contents, and the cost can vary based on your property's flood risk. You can buy flood insurance through the NFIP or a private insurer, but you cannot add it to a standard home policy as an endorsement.

When You Might Need Flood Insurance

If you live in a flood-prone area, flood insurance may be a wise purchase. Even if your home is not in a designated flood zone, heavy rain or rapid snowmelt can cause flooding. In many regions, seasonal weather patterns can lead to rising water levels from spring snowmelt or summer storms.

Your mortgage lender may require flood insurance if your home is in a high-risk flood zone. But even if it is not required, consider your own risk. A flood can happen anywhere, and the cost of flood damage is often much higher than the cost of a flood insurance premium.

How to Handle Flood Damage

If your home does suffer flood damage, act quickly to protect your health and property. Remove standing water as soon as it is safe, and dry out the area to prevent mold growth. Wear protective gear like gloves and boots, and be cautious of electrical hazards. Turn off the power and gas if necessary, and do not enter a flooded room until it is safe.

Document the damage with photos and keep receipts for any supplies you buy. Contact your insurance company to report the claim, and ask about your coverage. If you need help with cleanup, local water damage pros can assist with removing water, drying, and restoring your home. For more information, check your policy and talk to your insurance agent.

  • Turn off power and gas if safe
  • Wear protective gear
  • Document damage with photos
  • Remove standing water quickly
  • Dry out the area to prevent mold
  • Contact your insurance company

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Frequently asked questions

Can I add flood coverage to my home insurance?

No, flood insurance is a separate policy. You cannot add it as an endorsement to a standard home policy. You can buy it through the National Flood Insurance Program or a private insurer. Check with your insurance agent to see what flood options are available in your area.

Does home insurance cover sewer backup?

Usually not. Sewer backup is often excluded from standard home policies, but you may be able to add it as an endorsement or rider. This coverage can help pay for damage caused by water backing up through your drains, which is different from flood damage.

What should I do right after a flood?

First, ensure your safety. Turn off electricity and gas if it is safe, and wear protective gear. Remove standing water and start drying the area to prevent mold. Take photos of the damage and contact your insurance company to report the claim. If needed, call local water damage pros for cleanup help.

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