Homeowners insurance usually covers water damage that is sudden and accidental, such as a burst pipe, a failed water heater or an overflowing washing machine. It usually does not cover flooding from outside, sewer or drain backups (unless you added an endorsement), or damage from slow leaks and poor maintenance. The source of the water, not the amount of damage, decides whether a claim is paid.
This guide is general information, not legal or insurance advice. Policies vary by insurer, state and policy form. Your own policy wording and declarations page are what count; read them and ask your agent or insurer about your specific situation.
The key test: sudden and accidental vs. gradual
Most homeowners policies are built around the idea of an unexpected event. A supply line that bursts on Tuesday and soaks the kitchen is the kind of loss insurance is designed for. A shower pan that has dripped into the subfloor for a year is treated as a maintenance problem, and many policies specifically exclude continuous or repeated seepage or leakage that happens over weeks or months.
Water damage is a big deal for insurers. According to the Insurance Information Institute, water damage and freezing accounted for 22.6% of homeowners insurance losses in 2023, with an average claim of about $15,400 over 2019 to 2023. That is why adjusters look closely at how long the water was there and where it came from.
What is typically covered and what is excluded
| Water damage source | Standard homeowners policy (HO-3) | How to get coverage |
|---|---|---|
| Burst or frozen pipe (heat maintained) | Usually covered | Standard policy |
| Water heater, washer or dishwasher suddenly leaks | Usually covered (damage, not the appliance) | Standard policy |
| Roof leak after wind, hail or a falling tree | Usually covered | Standard policy |
| Ice dam forcing water into the house | Usually covered | Standard policy |
| Accidental overflow of a tub or sink | Usually covered | Standard policy |
| Slow, repeated leak over weeks or months | Usually excluded | Not insurable; fix leaks early |
| Roof leak from age, wear or poor maintenance | Usually excluded | Not insurable; maintain the roof |
| Sewer or drain backup, sump pump overflow | Excluded | Water backup endorsement |
| Flooding, surface water, rising rivers, storm surge | Excluded | NFIP or private flood policy |
| Groundwater seeping through the foundation | Usually excluded | Generally not covered |
| Mold from a covered water loss | Sometimes, often capped | Check mold sublimit; buy higher limit if offered |
| Repairing the pipe or appliance that failed | Usually excluded | Home warranty or equipment breakdown coverage |
Note the last row: a policy typically pays to tear out and replace the soaked drywall and flooring, and to dry the structure, but not to replace the worn-out water heater that caused it.
Flood damage needs a separate flood policy
Standard homeowners policies exclude flood and surface water. Coverage comes from the National Flood Insurance Program (NFIP), administered by FEMA, or from a private flood insurer. FEMA notes that just one inch of water in an average-size home can cause roughly $25,000 of damage.
- NFIP policies typically have a 30-day waiting period before coverage starts, so you cannot buy it when a storm is forecast.
- NFIP limits for a home are up to $250,000 for the building and $100,000 for contents (contents is optional).
- Basement coverage is limited. NFIP covers items like the furnace, water heater, sump pump, electrical panel and cleanup, but not finished walls, flooring, carpet or most belongings stored below grade.
In snow country, rapid snowmelt and rain-on-snow events cause flooding well outside mapped flood zones. If your basement has ever taken on water from outside, read our flooded basement guide and price a flood policy.
Sewer backup endorsement
The standard policy form excludes water that backs up through sewers or drains or overflows from a sump. A water backup (sewer backup) endorsement fills that gap for a modest added premium. Limits commonly start around $5,000 to $10,000; finished basements usually justify more. The endorsement pays for damage inside the home, not for repairing the sewer line. See our sewage backup cleanup guide for what that damage involves.
Mold coverage limits
Mold that results from a covered, promptly reported water loss is often covered, but many policies cap it with a sublimit, commonly somewhere between $1,000 and $10,000. Mold from long-term humidity or a leak you ignored is usually excluded. Since professional remediation can easily exceed those caps (see our mold remediation cost guide), drying quickly protects both your health and your claim.
Burst pipes, freezing and vacant homes
Burst pipes are among the most common covered water losses, but there is an important condition. The standard HO-3 policy form excludes freezing damage to plumbing unless you used reasonable care to maintain heat in the building, or shut off the water supply and drained the system. If the furnace was off or the thermostat was turned down too far, a claim can be denied.
This matters a lot for second homes and vacation cabins, which are common around Lake Tahoe and other mountain areas:
- The standard form removes vandalism and glass breakage coverage after a home has been vacant for more than 60 consecutive days, and some insurers add broader vacancy or unoccupancy restrictions.
- Some insurers require periodic check-ins or a monitored low-temperature alarm for seasonal homes.
- A leak in an empty cabin can run for days, which turns a small claim into a large one and invites questions about whether it was sudden.
If you will be away in winter, keep the heat on, consider shutting off and draining the water, and install leak and temperature sensors. Our guide to frozen pipes covers prevention in detail.
Roof leaks and ceiling damage
When wind, hail or a falling limb damages the roof and rain gets in, the interior water damage is usually covered along with the roof repair. Water forced under shingles by ice dams is also typically covered. A leak from an old, worn roof generally is not, and some insurers limit roof payouts by age. If you have a stained or sagging ceiling, see our ceiling water damage guide and our overview of storm damage restoration.
How to file a water damage claim, step by step
- Stop the water. Close the main shutoff or the fixture valve. If it is safe, cut power to wet areas.
- Document everything. Photos and video of the source, the water, the high-water lines and each damaged item, before you move or discard anything.
- Notify your insurer promptly. Policies require prompt notice; delays can complicate a claim.
- Prevent further damage. Policies expect you to take reasonable steps, such as extracting water and starting drying. Keep receipts for emergency services, fans and supplies.
- Keep samples and a list. Make an itemized inventory of damaged property with approximate age and value. Ask before throwing out large items like carpet or cabinets.
- Meet the adjuster. Walk them through the damage and the cause. Share any plumber report that documents the failure.
- Review the estimate. Compare it with written quotes from licensed local contractors and ask about anything missing.
Our detailed walkthrough of insurance restoration claims covers adjusters, estimates and supplements, and the water damage restoration process explains what the work should include.
Deductibles and whether to file at all
Your deductible comes off every claim. Many homeowners carry deductibles of $1,000 or more, and some policies use a separate or percentage deductible for certain perils. If the damage is only modestly above your deductible, it may not be worth filing.
That is because claims are recorded. Insurers report them to the CLUE (Comprehensive Loss Underwriting Exchange) database, which keeps seven years of claims on a property and is used when pricing policies. Water claims in particular can raise premiums or affect renewal, and the history follows the house when it is sold. You can request a free copy of your CLUE report from LexisNexis once a year. General questions to your agent are not supposed to be reported as claims, but make clear you are asking, not filing.
Tips to make sure you are covered
- Read your exclusions page, not only the declarations. Look for water backup, mold, seepage and vacancy language.
- Add a water backup endorsement if you have a basement or below-grade plumbing.
- Price flood insurance even if you are not in a high-risk zone, and buy it well before you need it.
- Fix small leaks quickly and keep receipts for plumbing and roof maintenance.
- Make a home inventory now, with photos or video of each room.
- Install leak detectors or an automatic shutoff valve; some insurers offer discounts for them.
Need a ballpark before you call your insurer? Try our water damage cost estimator.
Sources
- Insurance Information Institute: Facts + Statistics, Homeowners and Renters Insurance
- Insurance Information Institute: Sample Homeowners Policy Form HO 00 03
- Insurance Information Institute: Protect Your House From Sewer Backups
- FEMA / NFIP: Basement Flooding Fact Sheet
- FloodSmart (FEMA): The Real Cost of Flooding
- Texas Department of Insurance: Check Your Property Insurance Claim History (CLUE)
Frequently asked questions
Does homeowners insurance cover water damage from a leak?
It depends on whether the leak was sudden or gradual. A pipe that suddenly bursts or a water heater that fails is usually covered. A slow leak that dripped for weeks or months, or damage caused by poor maintenance, is usually excluded. The policy typically pays for the resulting damage, not for repairing the failed pipe or appliance.
Does homeowners insurance cover flood damage?
No. Standard homeowners policies exclude flood and surface water, including rising rivers, heavy rain runoff and storm surge. Flood coverage comes from the National Flood Insurance Program or a private flood insurer. NFIP policies usually have a 30-day waiting period, so buy coverage well before flood season.
Are burst pipes covered by homeowners insurance?
Usually yes, as sudden and accidental damage. However, the standard policy form excludes freezing damage unless you used reasonable care to keep the home heated or shut off and drained the water. Vacant or seasonal homes face extra scrutiny, so keep heat on and consider leak sensors.
Is sewer backup covered by homeowners insurance?
Not by a standard policy, which excludes water that backs up through sewers or drains or overflows from a sump. You need a water backup endorsement, an add-on many insurers offer with limits often starting around $5,000 to $10,000. It covers damage inside the home, not repair of the sewer line.
Will filing a water damage claim raise my premium?
It can. Insurers report claims to the CLUE database, which keeps seven years of claim history on a property and is used in pricing and renewal decisions. Water claims can be weighted heavily because they often repeat. For damage only slightly above your deductible, many homeowners choose to pay out of pocket.
Does homeowners insurance cover mold from water damage?
Sometimes. Mold caused by a covered, promptly reported water loss such as a burst pipe is often covered, but many policies cap mold payments at somewhere between $1,000 and $10,000. Mold from long-term humidity, slow leaks or neglected repairs is usually excluded, so dry wet areas within 24 to 48 hours.
Restore Upper Truckee is an independent guide site for homeowners dealing with water, fire, smoke, mold and storm damage. Every guide is researched against EPA, FEMA and insurance-industry sources, and we don’t sell restoration services. Read our editorial policy.
