What Is Not Covered Under a Dwelling Policy?
Flood, earthquake, and routine wear-and-tear are excluded, along with most sewer backups unless you added that coverage.
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Your declarations page lists what you bought, but the exclusions page is where a denial usually starts, so read that section before you call the adjuster. Beyond flood and earthquake, dwelling policies typically exclude mold that built up over time, pest damage, foundation movement from poor drainage, and anything tied to neglect rather than a sudden event. If your loss sits in one of these gaps, the adjuster isn't necessarily wrong. Check whether a separate endorsement, like sewer backup or equipment breakdown, was added to your policy and what it actually promises to pay.
If part of your loss falls outside what your dwelling policy pays, the gap doesn't close itself, and the next renewal is a chance to see whether another insurer covers more of what you actually own and where you live. Comparing now, while the claim is fresh, shows whether sewer backup, equipment breakdown, or foundation coverage comes standard elsewhere instead of as an extra you have to ask for.
What else gets left out, and why these exclusions exist
Dwelling policies are built to pay for damage that happens suddenly and by accident, not damage that builds up or was bound to happen eventually. That's why ordinance or law issues show up as another common gap. If your house is damaged badly enough that local code requires you to rebuild the whole structure to current standards, a standard policy often won't pay the extra cost of meeting that code unless you added an ordinance or law endorsement. The same goes for a home that was already out of code before the loss. Insurers also tend to exclude damage from government action, war, and nuclear hazard, though these rarely come up in an actual claim.
Power surges and electrical damage sit in a gray area worth knowing about. A surge from a lightning strike is usually covered, but gradual electrical failure from old wiring is treated as wear and tear, the same bucket as a roof that wore out from age rather than a storm. Adjusters are trained to look at cause first. They're asking whether something happened on a specific day, or whether the damage is the slow result of time passing. A denial often comes down to which side of that line your loss falls on, and the adjuster's report should say which one they decided and why.
Intentional acts by anyone named on the policy are excluded too, along with damage from running a business out of the home past what's typically allowed for incidental use. Vacant or unoccupied homes carry their own problem. Many policies limit or suspend coverage if the house sat empty past a certain number of days before the loss, which matters if the damage happened at a second home or a property between tenants. If you're mid-claim and unsure whether any of this applies, the denial letter is required to cite the specific policy language the insurer is relying on, not just a general reason.
None of these exclusions are unique to one insurer. They're common across the industry, which is exactly why they're worth checking against when you compare policies at renewal. Some insurers sell back pieces of this coverage as endorsements, like ordinance or law coverage, equipment breakdown, or extended limits for business property, at a cost that varies by company. Whether that's worth paying for depends on the house itself, its age, its wiring, and whether local rebuilding codes have changed since it was built.
What should you do if the denial seems wrong
Start by comparing the denial letter against the exclusions page itself, line by line. Insurers are required to point to specific policy language, not a general reason like mold or wear and tear. If the letter cites a clause about gradual damage but your own timeline shows a single event, like a pipe that burst on a specific day, that gap is worth raising directly with the insurer in writing.
Ask for the adjuster's full report, not just the summary letter. The report usually explains how they classified the cause of loss and what they measured or photographed to reach that conclusion. If something in your house contradicts their account, a second opinion from an independent contractor or engineer carries weight. This matters most for disputes over foundation movement or long-term water damage, where the cause is genuinely hard to pin down.
Every state has a department of insurance that handles complaints when a claim seems underpaid or wrongly denied. Filing a complaint doesn't cost anything, and it puts the insurer's reasoning in front of a third party. Some states also allow an independent appraisal process, built into most policies, where each side hires an appraiser and a neutral umpire settles disagreements over the dollar amount. That process addresses how much a covered loss is worth, not whether it's covered in the first place. It only helps once the cause itself isn't in dispute.
If the exclusion is being applied correctly and the loss falls outside what the policy promised to pay, the claim itself is over. The decision about coverage going forward isn't. That's the moment to look at whether an endorsement would have closed the gap, and whether it's worth adding before something like this happens again.
Before you go
Pull your declarations page and find the exclusions section next to it. Check whether sewer backup, equipment breakdown, or ordinance and law coverage is listed as an endorsement, or missing entirely, before your next renewal date comes around.
