What is usually covered and what usually is not
Every policy is different and yours is the one that governs, so read it. That said, the pattern across standard homeowners policies is consistent enough to be useful.
| Commonly covered | Commonly excluded |
|---|---|
| A supply line that bursts suddenly | A leak that seeped slowly over weeks or months |
| A water heater that fails and floods | Damage attributed to lack of maintenance |
| An appliance hose that lets go | Ground-source flooding, which normally needs separate flood insurance |
| Damage from putting out a fire | Sewer or drain backup, unless a rider was added |
| Resulting damage to flooring, drywall and contents | The cost of repairing the failed pipe itself, in many policies |
| Water from a covered roof loss | Mold, often capped at a dollar limit or excluded outright |
That last row on the left is worth reading twice. Many policies cover the damage the water did while excluding the cost of fixing the pipe that caused it. People are frequently surprised by this, and it is not the insurer being difficult, it is how the coverage is structured.
Sudden and accidental is the phrase that decides it
Most water damage coverage turns on whether the loss was sudden and accidental rather than gradual. A pipe that bursts on Tuesday is sudden. A pinhole leak that has been quietly wetting a wall cavity since spring is gradual, even though you only discovered it Tuesday.
This is why slow leaks are so often denied, and why the discovery date and the onset date get treated differently. It is also why acting immediately matters for the claim and not only for the damage.
What actually decides a water damage claim
In practice, claims are won and lost on documentation created in the first 48 hours, before anyone from the insurance company has seen the property.
- Dated photographs taken before anything was moved or cleaned up
- Moisture readings mapped room by room, including inside wall cavities
- Daily drying logs showing equipment placement and readings over time
- An itemized scope of the affected materials rather than a lump sum
- A written estimate for the reconstruction, tied to that scope
- Evidence of the cause, meaning the failed component itself, photographed in place
Ask any restoration contractor you are considering whether they provide moisture readings and daily drying logs. If the answer is vague, that is the answer.
Can a contractor negotiate my claim for me?
No, and you should be suspicious of anyone who offers to.
Under California Insurance Code section 15007, a person who, for compensation, acts on behalf of an insured in negotiating or effecting the settlement of a property claim is a public insurance adjuster. Public adjusters have to be licensed and bonded by the state, and the Insurance Commissioner has authority to act against unlicensed people who hold themselves out as one.
So a contractor telling you they will fight the insurance company on your behalf is describing licensed work. Either they hold that license, which is unusual for a contractor, or they are describing something they are not permitted to do.
What a contractor can legitimately do is document the damage thoroughly, write a defensible scope, and communicate factually with your adjuster about the work. That is a meaningful contribution. It is not the same thing as negotiating your claim, and the difference is a licensing line, not a marketing one.
What about mold?
Mold coverage is usually narrower than people expect. Where mold resulted from a sudden covered event such as a burst pipe, it is more likely to be covered, though frequently with a dollar cap well below the cost of a large remediation. Mold that grew from a long-term leak or from a maintenance issue is commonly excluded outright.
This is another reason the 24 to 48 hour drying window matters. Materials dried inside it usually do not grow mold in the first place, which removes the argument.
Practical steps that protect the claim
- 1
Stop the loss getting worse
Most policies require you to take reasonable steps to prevent further damage. Shutting the water off is not optional, and delaying it while you wait for the insurer can itself become a coverage argument.
- 2
Photograph before you clean
Cleanup destroys the evidence the claim rests on. Wide shots of each room, close-ups of damaged materials, and the source itself.
- 3
Report it promptly
Policies contain notice requirements. Late reporting is a straightforward reason for a denial that had nothing to do with the damage.
- 4
Keep everything
Receipts for anything you spend, the damaged materials where practical, and a written log of who you spoke to and when.
- 5
Read the policy before the adjuster arrives
Find your deductible, your coverage limits, and any mold or water sublimits. You will have a far more productive conversation.
Common questions
Does homeowners insurance cover a slab leak?
Policies commonly cover the resulting damage to flooring and drywall while excluding the cost of the pipe repair itself, and many require access work to reach it. It varies enough by policy that you should read yours and talk to your adjuster.
Is flooding covered by homeowners insurance in California?
Generally no. Ground-source flooding is typically excluded from standard homeowners policies and requires separate flood insurance. Water coming from inside the house, like a burst pipe, is a different thing and is commonly covered.
Will filing a water damage claim raise my rates?
It can, and repeated claims can affect renewal. That is a genuine consideration for small losses where the repair is close to your deductible. For a significant loss it is usually not a close call.
Should I get my own estimate?
Yes. An independent itemized scope from a licensed contractor gives you something concrete to discuss with the adjuster rather than only reacting to their number.
What if my claim is denied?
Ask for the denial in writing with the specific policy language it relies on. You can request internal review, and the California Department of Insurance takes consumer complaints. For a large disputed claim, a licensed public adjuster or an attorney is the appropriate help.
Do I have to use the restoration company my insurer recommends?
No. You choose your contractor. Insurers maintain preferred vendor programs and you may use one if you want to, but you are not obligated to.
Sources
The factual claims on this page come from these. Check them yourself rather than taking a contractor's word for it.