What home insurance is
Home insurance — sometimes called hazard insurance or homeowner's insurance (HOI) — is a type of property insurance built for private homes. One policy typically bundles several protections together: damage to your home and its contents, the extra cost of living elsewhere while repairs are made (loss of use), and liability coverage if someone is injured at your home or by you. To use a standard homeowner's policy, at least one named insured generally needs to occupy the home.
If a residence doesn't qualify — for example it's vacant, seasonal, or older — a separate dwelling policy (DP) is typically used instead.
Because it combines property and liability protection under one premium, home insurance is considered a 'multiple-line' policy with an 'indivisible' premium: you pay a single price for all the risks covered. Standard policy forms split coverage into several categories, usually expressed as a percentage of Coverage A, which insures the main dwelling.
Premiums are generally driven by what it would cost to rebuild the home and by any additional riders added to the policy. Because the policy itself is a detailed contract spelling out what is and isn't paid, it typically excludes certain events — floods and war (a term that usually also covers nuclear explosions) are common examples, along with items like termite damage. Separate coverage, such as flood insurance, can usually be purchased for these gaps.
It's worth periodically reviewing coverage amounts against an inflation factor or cost index so the policy keeps pace with real replacement cost.
Most home policies run for a fixed term, with a premium due each period. Insurers often charge less if the home is seen as lower risk — for instance if it's near a fire station, has sprinklers and alarms, or includes wind-mitigation features like hurricane shutters. In some markets, 'perpetual' insurance — a policy without a fixed term — is also available.
In the U.S., most home buyers finance their purchase with a mortgage, and lenders generally require the buyer to carry homeowner's insurance to protect their own interest in the property. Anyone with an insurable interest in the home should be listed on the policy. Occasionally a lender will waive this requirement if the land value alone exceeds the loan balance, since the lender could still recover the loan through foreclosure even if the buildings were destroyed.
Coverage details can vary a good deal by country. In Britain, for example, subsidence and resulting foundation failure are usually covered. U.S. insurers have reportedly moved away from broad foundation coverage over time, first narrowing it to leak-related damage and in many cases eliminating it.
Types of policies
U.S. insurers have long organized homeowners coverage around a family of standardized forms developed by the Insurance Services Office (ISO). The forms below (HO1 through HO8) describe the general shape of coverage; exact availability and terms vary by insurer and state.
HO1 — Basic Form Homeowner Policy
A basic form that covers the home against 11 named perils, with contents coverage generally available but needing to be specifically listed. Typical perils include fire or lightning, windstorm or hail, vandalism, theft, damage from vehicles or aircraft, explosion, riot or civil commotion, glass breakage, smoke, volcanic eruption, and personal liability. Floods and earthquakes are examples of standard exclusions.
HO2 — Broad Form Homeowner Policy
A step up from HO1, this form covers 17 named perils, including all 11 found in HO1. It's still a 'named perils' policy, meaning only the events it specifically lists are covered.
HO3 — Special Form Homeowner Policy
The most common form for single-family homes. It covers the dwelling on an 'open perils' (sometimes loosely called 'all risk') basis, meaning it covers everything except the perils it specifically excludes — earthquake and flood are typical exclusions. Contents, however, are usually covered only for named perils.
HO4 — Renter's Insurance
Often called the 'tenants' form, HO4 is built for renters. It protects personal property against the same perils covered under the contents portion of an HO2 or HO3 policy.
HO5 — Premier Homeowner Policy
Builds on HO3 by covering contents on an open-perils basis as well, so a loss is covered unless it's specifically excluded. (A similar result can sometimes be achieved by adding an HO15 endorsement to an HO3 policy.)
HO6 — Condominium Policy
Designed for condominium owners.
HO8 — Older Houses
A 'modified coverage' form meant for owner-occupied older homes where the cost to rebuild significantly exceeds the home's market value.
Coverage rates (historical snapshot)
A 1998 NAIC report found that roughly 83% of homes were covered by owner-occupied homeowners policies, with about 87% of those using the HO3 Special form and 9% using the broader HO5 form — both 'open perils' policies that cover everything except what's specifically excluded. Around 3% used the narrower HO2 Broad form, with the remainder split between HO1 Basic and HO8 Modified, the most limited option, which tends to pay actual cash value rather than full replacement cost.
These figures are decades old and are included as a historical point of reference; today's distribution of policy types is likely different.
The same report found the remaining 13% of home-related policies were renter's or condominium insurance. About two-thirds of those were HO4 renter's policies, covering the contents of a rented unit (and liability for injuries to guests) for perils such as lightning, riot, aircraft damage, explosion, vandalism, smoke, theft, windstorm, hail, falling objects, volcanic eruption, snow, sleet, and the weight of ice.
The rest were HO6 condo policies, which fill the gap between a building's master policy and the owner's personal belongings; a condo association's bylaws often set the minimum amount of coverage required.
A further 2.4% of homes, per that same historical report, were covered by dwelling fire policies, typically used by owners of rental houses to cover structural damage and sometimes the owner's own appliances or furnishings on the property; liability is often handled separately under the owner's primary home policy.
Shopping directly with an insurer can sometimes save money compared with going through an agent, though relatively few insurers sell homeowners coverage directly. That said, an experienced local agent can bring valuable insight into state and neighborhood-specific insurance conditions that may be hard to replace.
Classes of coverage
Most homeowners policies are organized into five standard coverage categories, based on forms from the Insurance Services Office or the American Association of Insurance Services.
Coverage A — Dwelling
Covers the value of the home itself, not the land it sits on. A typical coinsurance clause requires the dwelling to be insured to at least 80% of its actual value in order for losses to be paid at full replacement cost (up to policy limits) — a buffer intended to protect against inflation. Renter's policies (HO4) usually don't include Coverage A, though they may include separate coverage for tenant improvements.
Coverage B — Other Structures
Covers structures on the property that aren't used for business — a detached garage, for example. This is typically capped at 10–20% of Coverage A, though higher limits can usually be added by endorsement.
Coverage C — Personal Property
Covers your belongings, though certain categories — such as cash, banknotes, bullion, coins, or medals — often carry low sub-limits (for example, around $200). Many policies require this coverage to equal 50–70% of Coverage A, which can mean paying for more contents coverage than you actually need; this has prompted calls for more flexibility in how this amount is set.
Coverage D — Loss of Use / Additional Living Expenses
Covers added costs of living elsewhere while your home is repaired, and the fair rental value of any part of the home you rent out — though only the rent itself, not services like utilities that might be bundled into it.
Additional coverages
Most policies also include smaller additional coverages — things like debris removal, reasonable emergency repairs, damage to trees and shrubs from certain named perils (though usually not the most common causes, wind and ice), fire department service charges, removal of property to protect it from damage, credit card or identity theft expenses, loss assessments from a condo or homeowners association, collapse, a landlord's furnishings, and certain building additions. Exactly what's included depends on the specific policy form.
Exclusions
Open-perils policies spell out their exclusions directly. Common ones include earth movement, certain water damage, power failure, neglect, war, nuclear hazard, intentional losses, and — specifically under HO-3 policies — concurrent causation (where a covered and excluded cause combine to produce a loss).