Standard home insurance does not cover heat damage in Arizona when it results from gradual exposure. However, most Arizona homeowners insurance policies do cover heat damage when it’s caused by certain heat-related events, such as wildfires or general house fires.
What home insurance covers: Heat-related damage that qualifies
Arizona gets over 300 days of sunshine a year. The hottest parts of the state, like Yuma, see an average high of more than 100 degrees during the summer, so potential heat damage is top of mind for homeowners. Whether your home insurance policy covers heat damage comes down to the damage type and cause, not the temperature outside.
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Wildfire damage: Damage from fires — including structural damage, personal property damage, and smoke damage — is covered by a standard homeowners insurance policy. Arizona faces extended drought seasons and has a higher risk of wildfire than 86% of other states in the U.S. According to the Insurance Information Institute, 123,906 homes in Arizona are at risk for extreme wildfires as of 2025.
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Sudden heat-related incidents: Sudden heat damage from an accident, such as an electrical fire or blown HVAC component, should be covered by a standard open-peril (HO-3) home insurance policy. The key here is that the event must be sudden and accidental, not the result of wear and tear over time.
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Loss of use: If heat, smoke, or fire damage makes your home temporarily uninhabitable, your home insurance policy’s loss of use coverage should cover additional expenses while you’re moved out. This coverage only applies if you cannot stay in your home due to a covered claim.
What home insurance does not cover: Heat-related damage that’s excluded
Homeowners insurance exclusions for heat damage are broad. Anything that slowly breaks down or damage that was preventable with maintenance will not be covered.
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Gradual wear and tear: Home insurance will not cover heat damage resulting from wear and tear, including roofing materials that have warped, blistered, or cracked due to sun exposure.
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Appliance and HVAC breakdown: Heat can strain your appliances and HVAC system over time. Mechanical breakdown is not covered by home insurance unless caused by a covered peril, like fire.
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Cosmetic heat damage: Long periods of extreme heat and UV exposure can warp and melt siding, cause your roof tar to bubble, and lead to other cosmetic issues with your home. This type of heat damage is considered general environmental wear and is not covered by an home insurance policy.
All-risk policies (also known as open-peril or HO-3 policies) explicitly list wear and tear, gradual damage, and mechanical breakdown as exclusions from coverage. This would include gradual damage from the heat and sun.
Named-peril vs. open-peril policies: Why it matters in Arizona
Most Arizona homeowners have an open-peril policy, also called an HO-3 policy. These policies cover damage from any peril — meaning any source of damage — unless it’s explicitly excluded in the policy documentation. On the other hand, named-peril policies (HO-1 and HO-2) only provide coverage for specific perils listed in the policy documentation.
Overall, named-peril policies are more limited, but in the event of heat damage, it doesn’t matter as much which type of policy you have. Either way, if the cause of the Arizona heat damage was gradual wear and tear, it won’t be covered.
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Named perils (HO-1 and HO-2) |
Open perils (HO-3) |
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Only covers perils named in policy |
Covers all perils except those listed as exclusions in policy |
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Doesn’t cover damage from sudden events that aren’t named |
Covers damage from sudden events that aren’t named |
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Excludes coverage for gradual damage |
Excludes coverage for gradual damage |
Filling the gaps: Options for heat damage a home insurance policy doesn’t cover
Homeowners insurance will cover heat damage caused by smoke or fire, including wildfires. It won’t do you any good if your roofing, siding, appliances, or HVAC fail because of prolonged exposure to the Arizona heat and sun.
But there are ways to fill in those coverage gaps, including:
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Home warranty: Unlike home insurance for heat damage, a home warranty covers mechanical breakdown for appliances, home systems, or both (depending on the warranty you purchase). Mortgage lenders require you to carry home insurance, but a home warranty is optional. Learn more about the difference between home warranties and home insurance and when it might make sense to carry both.
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Equipment breakdown endorsement: While a standard home insurance policy doesn’t cover mechanical failure of appliances and systems, you might be able to upgrade your policy with an equipment breakdown endorsement. This optional add-on covers your home’s appliances and major systems if they suddenly break down, including motor burnouts, ruptured pipes, broken valves, and more.
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Roof endorsements: Some insurers offer roof endorsements, which provide extended coverage for your roof, and cosmetic damage riders, which can help cover the cost of repairs if your roof or siding is cosmetically damaged after years of high UV exposure in Arizona.
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Review your policy’s exclusions list: Whenever you get a home insurance policy, read the exclusions list to understand what is covered by your home insurance — and what is not. You can visit the Arizona Department of Insurance & Financial Institutions (DIFI) to learn more about your rights as an insurance consumer.
How Arizona homeowners can prevent heat damage
When you live in Arizona, there’s no escaping the heat. But there are ways you can mitigate and even avoid heat damage:
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Inspect and maintain your roof: Because of increased UV exposure in Arizona, roof shingles degrade faster. Regularly inspect your roof (or hire a roofer to do so), and contact a roofing professional as soon as you notice the shingles are starting to fail.
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Service the HVAC system before peak season: Your HVAC system puts in a lot of hard work in Arizona. Hire an HVAC technician annually to inspect your unit, ideally before the peak summer season begins, and make repairs as needed.
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Choose heat-resistant exterior materials: The next time you replace your roof, siding, or even caulking, choose materials specifically rated for high-heat climates, such as tile or metal roofing instead of standard asphalt shingles.
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Seal gaps around doors and windows: Arizona’s extreme heat causes caulk and weatherstripping to crack and shrink, making it harder to keep your home cool. Reseal doors and windows annually to insulate your home and take some strain off your HVAC system.
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Create defensible space if you’re in a wildfire zone: Follow guidance from the Arizona DIFI and the National Fire Protection Agency (NFPA) to create what’s known as a “defensible space” around your home. This includes clearing dry vegetation to slow the spread of wildfires and using fire-resistant landscaping. Doing so may also qualify you for a homeowners insurance discount.
Frequently asked questions
Is heat damage covered by homeowners insurance?
Home insurance does cover heat damage in Arizona if it’s caused by an accidental fire or wildfire. However, home insurance does not cover heat damage resulting from gradual wear and tear or appliance breakdowns.
Does homeowners insurance cover HVAC damage from heat?
Homeowners insurance can cover HVAC damage from heat if the cause is a sudden failure from a covered event. But if your HVAC system simply breaks down because it’s had to work extra hard in Arizona’s extreme heat, it won’t be covered by homeowners insurance. A home warranty or equipment breakdown endorsement may cover this kind of mechanical failure.
What two events are not covered under homeowners insurance?
Floods and earthquakes are two of the most well-known disasters excluded from standard homeowners insurance. You can often add coverage for earthquakes via a policy endorsement (optional add-on) or separate policy. Flood coverage is sometimes available as an endorsement but more commonly requires a separate policy. Keep in mind these aren't the only exclusions. Standard home insurance policies also omit damage from gradual wear and tear, neglect, and environmental heat exposure.
What is the 80% rule for home insurance
The 80% rule for home insurance is that your dwelling coverage limit should be at least 80% of your home’s total replacement cost value. If you insure your home for less than that and submit a claim, you may face a coinsurance penalty. It’s especially crucial to carry enough dwelling coverage in Arizona, where construction costs have skyrocketed due to inflation and post-wildfire construction demand.
What should I not say to a homeowners insurance adjuster?
When speaking with a homeowners insurance adjuster, avoid speculation about the cause of the damage. Rather, let the adjuster conduct their own analysis and provide the appropriate information when prompted. Read our guide to filing a claim to learn more about this process.
