What Does Homeowners Insurance Not Cover in California? The Exclusions List

A homeowners policy covers a lot, but it is built around one idea: sudden, accidental loss. So the big exclusions are the things that are slow, expected, or huge. Earthquake and flood are both excluded and need their own policies. Wear and tear, pests, and mold are excluded because they are not sudden, and sewer backup, business use, and high-value items are limited or left out unless you add coverage. Almost all of these holes can be closed with an endorsement, a scheduled item, or a separate policy.

What are the major exclusions on a homeowners policy?

The two biggest are earthquake and flood. Both are excluded from every standard California homeowners policy and need their own separate policies. After those, the main exclusions are wear and tear, pests, intentional acts, war, and nuclear hazard. These appear on nearly every policy because they are either too large, too slow, or not accidental.

Start with the two that catch the most people. Earthquake is excluded, full stop, and given where California sits, that is a real gap. The fix is a separate earthquake policy, which I cover in do I need earthquake insurance. Flood is also excluded, including rising water, storm runoff, and post-wildfire mudflow, and it needs its own policy too, which I walk through in do I need flood insurance. People assume one or both are folded into homeowners. They are not. The rest follow the same logic: intentional acts are excluded, and war and nuclear hazard are excluded because no private insurer can absorb them. Almost every exclusion traces back to one line: sudden and accidental is covered, slow and expected is not.

What about wear and tear and maintenance?

Wear and tear, lack of maintenance, and gradual damage are excluded. Insurance is for sudden, accidental losses, not for things breaking down over time. A roof that wears out, a slow leak you ignored, or a deck that rotted is maintenance, not a claim. Pests like termites and rodents are excluded for the same reason.

This is the most common surprise I see. A roof finally gives out after 25 years, or a pipe seeps behind a wall for months, and the owner expects the policy to pay. It usually will not. Those are not sudden accidents, they are the predictable result of age and upkeep, which the policy assumes you handle.

Pests sit in this same category and people are often shocked by it. Termite damage, rodent damage, and infestation are treated as maintenance, because an infestation builds over time. No endorsement turns routine pest damage into a covered claim. The fix is inspection and pest control.

One nuance. The slow leak is excluded, but the sudden burst it eventually causes is often covered, even though the worn-out pipe is not. That line is where a lot of claims get fought, which is why I have a separate piece on what homeowners insurance covers for water damage.

What about water and sewer backup?

Two gaps live here. Flood, meaning water from outside the home, is excluded and needs a separate flood policy. Sewer or drain backup, water that comes up through your own drains, is also typically excluded unless you add a backup endorsement. A standard policy covers neither.

People lump all water together, but the policy does not. A sudden burst pipe inside is usually covered. External flood water is excluded and needs flood insurance. And then there is backup, which surprises almost everyone: when your sewer line or a storm drain pushes water up into the home, that is neither a burst pipe nor a flood in the policy sense, and a standard policy generally excludes it.

The fix is cheap relative to the damage: an endorsement, often called sewer or water backup coverage, with its own limit. If you have a basement, a ground-floor home, mature trees near the sewer line, or you sit downhill from your neighbors, it is worth adding. A backup can ruin a finished lower level fast, and without it you pay for that yourself.

Mold belongs right here, because it is tied to water. It is often limited or excluded unless it results from a covered water loss, and even then it is usually capped at a low sublimit. So mold from a long-ignored leak is generally excluded, while mold following a covered burst pipe may be covered up to a small limit. Do not assume remediation is fully paid. It rarely is.

What about valuables and special items?

Your personal property is covered, but high-value items are covered only up to low category sublimits unless you schedule them. Jewelry, watches, art, and collectibles each have a built-in cap, often far below what the item is worth. To cover them properly you schedule each one with a separate endorsement, sometimes called a rider, backed by an appraisal or receipt.

This one costs people real money. Your policy covers contents, but it caps the items most likely to be stolen. Jewelry is the classic example. A policy might cover all your contents up to a high overall limit, yet cap theft of jewelry at a thousand or two thousand dollars total. If your ring is worth more, the rest is on you.

The same applies to fine art, watches, firearms, silverware, and collectibles like coins, cards, or wine. The fix is to schedule the item, meaning you list it with a stated value backed by an appraisal or receipt. Scheduled items often get broader coverage too, including accidental loss like dropping a ring down a drain. If you own anything you would be sick to lose, have this conversation before a loss.

What about a home business, a rental, or a dog?

All three can fall outside a standard policy. Business use of the home is usually limited or excluded. A home you rent out, short or long term, may not be covered as a homeowners risk at all. And certain dog breeds, or a dog with a bite history, can be excluded from liability by some carriers.

The home business gap is wide. A homeowners policy assumes a residence, so business property is typically covered only to a small limit, and business liability is generally excluded. If a client trips on your steps, the policy may not respond. The fix is a business endorsement or a commercial policy, sized to the operation.

Renting the home out is its own issue. The moment a property is rented, the risk changes, and a standard owner-occupied policy may not cover it. A long-term rental usually needs a landlord or dwelling policy. A short-term rental, booked online by the night, sits in a gray area many standard policies exclude. Either way, tell your broker first.

Dogs are the last one here. Liability for a dog bite is often covered, but some carriers exclude specific breeds, and many exclude any dog with a documented bite history. The rules vary a lot between insurers, so confirm rather than assume. Sometimes the answer is simply a carrier that does not exclude your dog.

What hidden gaps are not full exclusions but still catch people?

Two stand out. Ordinance and law coverage, which pays the extra cost to rebuild to current codes, is usually included only at a small sublimit by default. And underinsurance of the dwelling, where your rebuild limit is too low, leaves you short after a total loss. Neither is an exclusion exactly, but both cost you out of pocket.

These are the quiet ones. They do not show up as a line saying excluded, so people assume they are fine, then find the gap during a rebuild. Ordinance and law is the cost of meeting today's building codes when you rebuild, which on an older home can be a large number, and most policies include only a thin sublimit. Underinsurance is the broader version: if your dwelling limit was set too low years ago and construction costs have climbed, you may not have enough to rebuild even before code upgrades enter the picture. After a wildfire, when a whole neighborhood rebuilds at once and prices spike, both gaps get exposed together. The result feels the same as an exclusion: a claim gets paid, but not enough, and the shortfall lands on you. Checking these two limits is cheap, since raising them usually costs little.

How do I cover the gaps?

The fix for most is one of three things: an endorsement added to your policy, a scheduled item for a valuable, or a separate policy for perils like earthquake and flood. None of it is complicated once you know which gap you are closing. Map the holes before a loss, so the fix is in place when you need it.

• Earthquake. Excluded. Fix: a separate earthquake policy.
• Flood, runoff, mudflow. Excluded. Fix: a separate flood policy.
• Wear and tear, gradual damage. Excluded. Fix: maintenance, not insurance.
• Pests and infestation. Excluded. Fix: inspection and pest control.
• Mold. Limited or sublimited. Fix: a mold endorsement, and read the cap.
• Sewer or drain backup. Excluded. Fix: a backup endorsement.
• High-value items. Capped at low sublimits. Fix: schedule each with a rider.
• Home business. Limited or excluded. Fix: a business or commercial policy.
• Rental use. May be excluded. Fix: a landlord or short-term rental policy.
• Dog liability. Sometimes excluded by breed or history. Fix: confirm, or change carriers.
• Ordinance and law. Small default sublimit. Fix: raise it by endorsement.
• Underinsured dwelling. Limit too low. Fix: update the rebuild cost.

You do not have to close every gap. Some will not apply to you, and over-insuring is its own waste. The goal is to decide which gaps are real for your home and handle those. If you want a second set of eyes, send me your policy, specifically the declarations page, and a little about your home and what you own. I will read it against this list and point out the gaps that apply to you, the sublimits worth raising, and the items worth scheduling. If your coverage already looks solid, I will tell you that. The time to find a hole is before a loss, not in the middle of one.