- A standard HO-3 policy covers the dwelling, your belongings, liability and living expenses after a covered loss — but not everything that can happen to a house.
- The two most expensive surprises are floods and earthquakes: both are excluded and need separate policies.
- Replacement cost coverage rebuilds your home at today’s prices; actual cash value pays depreciated amounts — the difference can be six figures.
- Water damage is the trickiest category: burst pipes are usually covered, rising water never is, sewer backup only with an endorsement.
Most homeowners buy insurance when they get a mortgage, file it away, and discover what it does and doesn't cover only at the worst possible moment: after the loss. The gap between what people assume homeowners insurance covers and what a standard policy actually pays for is where the industry's most painful stories live. Here's the map.
What a standard policy covers
The most common policy form, the HO-3, bundles four protections:
- Dwelling coverage rebuilds or repairs the structure after covered events — fire, wind, hail, lightning, vandalism, falling trees and more.
- Personal property covers your belongings, typically at 50–70% of dwelling coverage, against a named list of perils — including theft away from home.
- Liability protects your assets if someone is injured on your property or you cause damage to others — usually $100,000–$500,000.
- Additional living expenses pays for hotels and meals while your home is uninhabitable after a covered loss.
The exclusions that surprise people
Flood — never covered
No standard homeowners policy covers rising water: overflowing rivers, storm surge, heavy-rain flooding. Flood insurance is a separate policy through the federal NFIP program or private insurers, typically $500–$1,500+ a year depending on zone. Roughly a quarter of flood claims come from properties outside designated high-risk zones — “I'm not in a flood zone” is a probability statement, not immunity.
Earthquake — never covered
Ground movement, including earthquakes and sinkholes in most states, requires separate coverage. In California it's commonly bought through the CEA; deductibles run high (often 10–20% of dwelling coverage), which is why many skip it — a decision worth making consciously rather than by default.
Water damage — it depends, precisely
This is the most litigated word in home insurance. The general logic: sudden and accidental water from above or inside (burst pipe, failed water heater, washing machine hose) is covered. Water from below (groundwater seepage, rising water) is not. Sewer and drain backup sits in between — excluded by default, but coverable with a cheap endorsement ($50–$250 a year) that every homeowner with a basement should consider.
Maintenance, mold, pests
Insurance covers sudden events, not gradual ones. Slow leaks you should have noticed, rot, mold (beyond small covered-event cleanup), termites and rodents are on you. This is the policy's way of saying: maintenance is not insurable.
Replacement cost vs. actual cash value: the six-figure detail
Two policies can insure the same house for wildly different real-world payouts. Replacement cost coverage pays to rebuild or replace at today's prices. Actual cash value subtracts depreciation — your 15-year-old roof is paid out at its depreciated worth, perhaps a third of what a new one costs. ACV policies are cheaper for a reason. For the dwelling especially, replacement cost (ideally with extended replacement cost of 125–150% for post-disaster price spikes) is the setting that determines whether you can actually rebuild.
Getting the price down without gutting protection
- Raise the deductible from $1,000 to $2,500 — typically saves 10–20% — if your emergency fund can absorb it.
- Bundle with auto insurance for a 10–25% combined discount.
- Harden the home: monitored alarms, water-leak sensors, impact-resistant roofing and storm shutters each earn discounts with many insurers.
- Re-shop every two to three years. Home insurers reprice aggressively; loyalty is rarely rewarded.
- Don't file small claims. Claims history follows you via the CLUE database for five to seven years; a $1,500 claim can cost more in premium increases than it pays.
Common questions from readers
Is my home business covered?
Barely. Standard policies cap business property at around $2,500 and exclude business liability. A home business endorsement or separate policy closes the gap for a modest cost.
Are jewelry and collectibles fully covered?
Only up to small sublimits — often $1,500 for jewelry theft. Items above that need to be “scheduled” individually with an appraisal, usually at $1–$2 per $100 of value annually.
Does my policy cover my dog?
Liability coverage generally extends to dog bites, but many insurers exclude specific breeds or dogs with bite history. Check your policy language before you need it.
What if my home is underinsured and I only find out after a fire?
You receive at most your coverage limit regardless of rebuild cost — which is why reviewing dwelling coverage after renovations and construction-cost inflation matters. Some policies include inflation guard endorsements that adjust limits automatically each year.