In this guide
It depends on where the water came from and how fast it arrived. Homeowners insurance generally covers water damage that is sudden and accidental, such as a burst pipe or a failed washing machine hose. It generally does not cover flooding from outside, sewer or drain backup, or damage from a leak that went on for weeks or months, unless you have added coverage for those risks.
Key takeaways
- The key test is the cause: "sudden and accidental" discharge from plumbing or appliances is usually covered; gradual seepage and neglect are usually not.
- Flood (rising water from outside) is excluded from standard policies and needs a separate flood policy.
- Sewer or drain backup and sump pump failure often require an optional endorsement.
- Policies often cover the damage that water causes, but not the repair of the worn pipe or appliance that failed.
- Speed matters: stopping the water, drying out quickly and documenting everything protect both your home and your claim.
The basic rule: sudden vs. gradual
Regulators describe the line in similar terms. The NAIC says homeowners policies cover damage from a "sudden and accidental" discharge from a plumbing system. The Texas Department of Insurance says most policies cover sudden, accidental water damage such as a burst pipe, toilet overflow or broken washer hose, and that gradual leaks and seepage are generally excluded. Washington's insurance commissioner draws the same distinction between sudden and accidental leaks and gradual ones.
In practice, this means two homes with the same stained ceiling can get different answers. A supply line that snaps and floods the kitchen overnight looks sudden. A pinhole leak behind a wall that rots the framing over a year looks gradual. Insurers will look at the evidence of how long water was present.
Common water damage situations
| Situation | Often covered by a standard policy? | Notes |
|---|---|---|
| Burst or frozen pipe | Often yes | May depend on whether you took reasonable steps, such as keeping the heat on |
| Water heater or appliance suddenly fails | Often yes (for resulting damage) | The failed appliance itself is usually not covered |
| Overflowing tub, sink or toilet | Often yes | Carelessness or repeated overflows can complicate a claim |
| Rain entering after storm damages the roof | Often yes | Depends on a covered opening; see our roof damage guide |
| Slow leak or long-term seepage | Usually no | Typically treated as maintenance |
| Groundwater seeping through basement walls | Usually no | May require a specific endorsement or flood coverage |
| Sewer or drain backup | Usually no unless endorsed | Ask about water backup coverage |
| Flood from a river, storm surge or heavy runoff | No | Needs a separate flood policy |
Flood is a separate risk
Standard homeowners policies do not cover flood. FEMA says most homeowners insurance does not cover flood damage, and flood coverage is typically bought through the National Flood Insurance Program (NFIP) or a private flood insurer. The line between "flood" and other water can be blurry in a storm. Surface water that enters from outside is generally treated as flood, while water from a failed plumbing system inside is not. Read our flood insurance guide for how that coverage works and why waiting periods matter.
Sewer backup and sump pump failure
When a sewer line, drain or sump pump fails, water can come up through floor drains or toilets. Standard policies commonly exclude this, but many insurers offer an optional water backup endorsement for an added premium. The limit on that endorsement is often much smaller than your dwelling limit, so ask what the limit is and what it includes.
Tip: If you have a finished basement or a sump pump, ask your agent how a backup of the sump pump or drain would be handled. Many people only learn about this gap after a loss.
What the policy pays for, and what it does not
Even with a covered cause, a claim has parts, and not all of them are paid the same way.
- Resulting damage is usually covered: ruined drywall, flooring, cabinets and belongings damaged by the water.
- The source of the leak often is not: the cost to repair or replace a corroded pipe or a worn-out appliance is commonly excluded. Some policies cover the cost of tearing out and replacing parts of the house to reach the leak ("tear-out"), but not the repair itself.
- Temporary living costs: if the home is unlivable after a covered loss, Coverage D (loss of use) may pay extra living expenses.
- Mold: mold from a covered water loss may be handled differently. See our mold guide.
Valuation also matters. If your policy pays on an actual cash value basis, depreciation will reduce what you receive for flooring and belongings. See replacement cost vs. actual cash value.
What to do when water damage happens
- Stop the source if you can safely do so. Shut off the main water valve. If water is near electrical outlets or panels, stay out and call a professional.
- Protect your property. Move belongings out of the wet area, remove standing water and start drying. The Texas Department of Insurance notes mold can start growing within a day, so speed matters.
- Document before cleanup. Photograph or video the damage, including the source and affected rooms. Keep damaged items until the adjuster has seen them, unless they are unsafe.
- Report the claim promptly. Hidden water damage usually has to be reported within days of when you first notice it, according to Texas guidance. Check your policy for deadlines.
- Make only temporary repairs. Keep receipts for emergency services such as water extraction. Most policies require reasonable steps to prevent further damage and often reimburse them for a covered loss.
- Keep notes. Record names, dates and what each person said about your claim.
Our guide on how to file a home insurance claim has more detail on what to expect after you report a loss.
Reducing the chance of a denied claim
Some prevention steps are also coverage steps, because insurers expect you to maintain the home and act on problems you know about.
- Know where your main water shutoff is, and show every adult in the household.
- Replace aging supply hoses, such as washing machine hoses, before they fail.
- Do not ignore small leaks or stains. A known problem that you left alone is more likely to be treated as neglect.
- In cold weather, keep the heat on, insulate exposed pipes and shut off the water if you will be away. The NAIC notes that policies commonly expect homeowners to maintain a minimum temperature and, for vacant homes, to shut off the water.
- Consider water leak detectors or automatic shutoff devices. Some insurers offer discounts for them, though availability varies.
Watch out: If you disagree with a water damage decision, ask your insurer for the specific policy language it relied on, in writing. You can also contact your state insurance department, which can explain your rights and, in many states, review complaints.
Coverage worth asking about
Because water losses are among the most common homeowners claims, it is worth reviewing these options before you need them: water backup coverage, any extended water damage or hidden leak provisions, your dwelling limit and valuation method, and your deductible. If you are comparing policies, remember that coverage terms can differ even when prices look similar. Comparing quotes from several insurers lets you see those differences side by side. For a broader view of what a policy covers, start with our homeowners insurance guide.
Frequently asked questions
Is a burst pipe covered by homeowners insurance?
Often yes, when the break is sudden and accidental. The resulting damage is commonly covered, but the cost of repairing the pipe itself may not be. Coverage can be affected if the policy requires you to have heated the home or if the pipe failed due to neglect.
Does homeowners insurance cover a slow leak?
Usually not. Leaks and seepage that occur over a long time are generally excluded as maintenance issues. Some policies have limited coverage for hidden leaks, so ask your insurer.
Is sewer backup covered?
Not under most standard policies. Many insurers offer a water backup endorsement for an additional premium, usually with its own limit.
Do I need flood insurance if I have homeowners insurance?
Homeowners insurance does not cover flood. Whether you need separate flood insurance depends on your risk and any lender requirements. Floods can happen outside high-risk zones, so it is worth checking your area's flood map and talking with an agent.
How long do I have to report water damage?
It depends on your policy and state. Many policies require "prompt" notice, and some regulators say hidden water damage should be reported within days of discovery. Report as soon as you know about it.
Sources
- NAIC – Will my homeowners insurance policy cover water damage from a burst pipe?
- Texas Department of Insurance – When are water damage and mold covered by insurance?
- FEMA – Flood Insurance
- Insurance Information Institute – What is covered by standard homeowners insurance?
General information only. This guide explains general concepts and is not insurance, legal or financial advice. Rules and prices vary by state and insurer. Check your policy documents and speak to a licensed insurance professional or your state insurance department about your situation.