Is your situation covered?
| Scenario | Typical verdict | Why |
|---|---|---|
| Rainwater enters through a wind-damaged roof | Usually covered | Home policy — the wind opening came first. |
| Surface water from heavy rain rises into the basement | Usually not | This is flood. Needs an NFIP or private flood policy. |
| Sewer or drain backs up into the house | Depends on wording | Only with a water/sewer backup endorsement — usually $50–$250/yr. |
| Burst supply pipe inside a wall | Usually covered | Sudden and accidental discharge, covered by the home policy. |
| Sump pump fails during a storm | Depends on wording | Needs a sump-pump failure endorsement; not included by default. |
| Groundwater seeps through the foundation over months | Usually not | Gradual seepage is excluded by both home and flood policies. |
General industry patterns. Your actual cover lives in your policy wording — PolicyPal reads it for you.
The short answer
Every standard US homeowners policy (HO-3, HO-5, HO-6, HO-4) excludes flood. Flood means water that rises from outside and reaches the ground before it reaches the house — surface runoff, overflowing rivers, storm surge, or mudflow affecting two or more properties. Water that arrives from above or from inside the plumbing is a home-insurance question.
The test insurers actually apply
Adjusters look at where the water was immediately before it entered the building. Water that touched the ground first is flood. Water that came through the roof, a wind-created opening, or a pipe is not. This single distinction decides the majority of disputed storm claims.
- Above the line (home policy): roof leaks after wind damage, burst pipes, appliance overflow, water from a neighbouring unit.
- Below the line (flood policy): surface water, storm surge, river overflow, mudflow, rapid snowmelt runoff.
- In between (endorsement needed): sewer backup, sump-pump failure, foundation seepage after saturation.
What NFIP flood insurance pays — and its limits
The National Flood Insurance Program caps residential building cover at $250,000 and contents at $100,000, both on an actual-cash-value basis for contents. It is also more restrictive than most people expect in basements.
- Basement contents are largely excluded — furniture, carpet, and personal items below grade generally get nothing.
- Basement building elements are limited to essentials: furnace, water heater, electrical panel, sump pump, foundation walls.
- No additional living expenses. If you cannot live in the home, NFIP pays nothing toward a hotel — private flood policies often do.
- Detached structures and pools are excluded or severely limited.
- A 30-day waiting period applies from purchase, so buying as a storm approaches does not work.
Private flood is now genuinely competitive
Private flood carriers commonly offer higher building limits, replacement-cost contents, loss-of-use cover, and shorter waiting periods (often 10–15 days), sometimes at lower premiums than NFIP outside high-risk zones. The trade-off is that private carriers can non-renew after a loss, while NFIP cannot. If you are in a high-risk zone with a mortgage, get quotes from both.
The zone myth that costs people the most
Roughly a quarter of all flood claims come from properties outside high-risk flood zones, where cover is not mandatory and premiums are often a few hundred dollars a year. Being in Zone X does not mean you cannot flood — it means your lender did not force you to insure against it.
Check what you actually hold
Pull your homeowners declarations page and look for a water backup endorsement and a sump-pump endorsement — most people assume they have them and do not. Then check whether you hold a separate flood policy at all. PolicyPal reads both documents together, tells you which one would respond to your specific incident, and flags the endorsements missing from your setup.
Frequently asked
- Does homeowners insurance ever cover flood damage?
- No. The flood exclusion is standard across every ISO homeowners form. The only water losses a home policy covers are sudden internal discharge, and rain entering through an opening that a covered peril such as wind created first.
- Is sewer backup the same as flood?
- No, and this matters. Sewer backup is excluded from the base home policy but can be added back with an endorsement that typically costs $50–$250 a year for $5,000–$25,000 of cover. NFIP only pays for backup if it was directly caused by flooding.
- How long does NFIP take to pay a claim?
- Payment typically follows within 30–60 days of a signed proof of loss, but the proof of loss itself must usually be filed within 60 days of the loss. Missing that deadline is the most common reason NFIP claims fail.
- Do I need flood insurance if I rent?
- Your landlord's policy covers the building, not your belongings. NFIP sells contents-only flood policies to tenants, typically for $100–$500 a year depending on zone.
- Will my mortgage lender force me to buy it?
- Only in a Special Flood Hazard Area (Zones A or V). If they force-place a policy because you let yours lapse, you will pay several times the market rate for worse cover.
Your policy is the only source of truth
Stop guessing. Check your actual policy.
Generic answers don't pay claims. PolicyPal reads your policy wording in seconds and tells you, in one sentence, whether you're covered.