Bottom line: A standard HO-3 homeowners policy covers your home's structure and personal belongings from most sudden, accidental damage, plus liability and temporary living costs. It does not cover floods, earthquakes, sewer backup, mold, or gradual deterioration. These require separate policies or endorsements.
Most people buying a home learn just enough about homeowners insurance to satisfy their mortgage lender. That is usually not enough. The gaps between what you think is covered and what actually is covered can cost tens of thousands of dollars in an uncovered claim.
What a Standard Policy Covers
Dwelling coverage (Coverage A)
Pays to repair or rebuild the physical structure of your home — walls, roof, floors, built-in appliances, attached garages — if damaged by a covered peril.
The key word: "covered peril." A standard HO-3 policy covers your home against all perils except those specifically excluded. Common covered perils include:
- Fire and smoke
- Wind and hail
- Lightning
- Theft and vandalism
- Burst pipes and water damage from plumbing failures
- Falling objects
- Weight of ice and snow
Critical: Dwelling coverage should equal the cost to rebuild your home, not its market value. In areas where construction costs have risen sharply, underinsured homes are increasingly common. Review your coverage limit annually.
Other structures coverage (Coverage B)
Covers detached structures on your property: detached garages, fences, sheds, guest houses. Typically 10% of dwelling coverage automatically.
Personal property coverage (Coverage C)
Covers your belongings — furniture, electronics, clothing, appliances — whether they are damaged at home or stolen away from home (your laptop stolen from a car, for example).
Standard policies pay actual cash value (ACV) — replacement cost minus depreciation. A three-year-old laptop might pay out $300 even if replacing it costs $1,200. Upgrade to replacement cost value (RCV) for personal property if your policy offers it — the premium difference is usually small and the payout difference is significant.
Some categories have sub-limits. Jewelry, firearms, art, collectibles, and cash often have low sub-limits ($1,000–2,500 for jewelry is common). A scheduled personal property endorsement covers high-value items at their full appraised value.
Liability coverage (Coverage E)
Pays if someone is injured on your property or if you (or household members) accidentally damage someone else's property. Covers medical bills, legal fees, and damages if you are sued.
Standard limit: $100,000. Most homeowners should carry $300,000–500,000. Umbrella policies extend liability protection beyond home and auto limits inexpensively — typically $200–400/year for $1,000,000 in additional coverage.
Additional living expenses (Coverage D)
If your home is uninhabitable after a covered loss (a fire, significant structural damage), this coverage pays for hotel, restaurant meals, and other living costs while your home is repaired. Usually 20–30% of dwelling coverage.
- Flood damage is never covered by standard homeowners insurance. If you are in or near a flood zone — or anywhere with heavy rain — separate flood insurance through the NFIP or a private carrier is essential.
- Earthquake coverage is also excluded from standard policies. Separate earthquake insurance is available, most importantly in California, Oregon, Washington, and other seismically active states.
- Home warranties and homeowners insurance are different products. Home warranties cover mechanical breakdown of appliances and systems. Homeowners insurance covers sudden, accidental damage — not normal wear and tear.
What Is Not Covered
Floods: Water that enters from outside — rising rivers, flash floods, storm surge — is excluded from all standard homeowners policies. Flood insurance requires a separate policy through the National Flood Insurance Program (NFIP) or a private carrier. Average NFIP premium: about $900/year nationally, but higher in high-risk zones.
Earthquakes: Excluded from standard policies in all states. California homeowners can purchase through the California Earthquake Authority. Other states have private market options.
Sewer and drain backup: If water backs up through a drain or sewer line, standard policies typically do not cover it. A sewer backup endorsement usually costs $50–150/year and is worth adding.
Mold: Usually excluded unless it results directly from a covered water damage event (and even then, coverage is often limited).
Gradual damage: Slow leaks, settling, rot, pest damage, and wear and tear are all excluded. Insurance covers sudden, accidental events — not deferred maintenance.
Business equipment: If you work from home and have significant business equipment, a standard policy's personal property coverage may sub-limit business property at $2,500 or less. A home office endorsement or separate business policy covers the gap.
Reviewing Your Policy
Read the declarations page (the summary of your coverage) and the exclusions section before you have a claim. Know:
- Your dwelling coverage limit vs. your estimated rebuild cost
- Whether your personal property is actual cash value or replacement cost
- What endorsements you have (scheduled jewelry, sewer backup, equipment breakdown)
- What your deductible is and whether it is a flat amount or a percentage for wind/hail claims
Coverage terms and exclusions vary by policy and state. Review your specific policy documents and consult your agent about gaps before a claim occurs.
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