Guides
Wildfire and commercial property insurance: cover, cost and mitigation
Wildfire is covered as fire, so the fight is over availability, price and valuation. What underwriters score, what a loss touches, how California rules work.
A standard commercial property policy covers wildfire damage because wildfire is fire, and fire is a covered cause of loss on every ISO causes-of-loss form. The trouble is not an exclusion. It is that carriers in wildfire-exposed areas decline to write buildings, add higher deductibles or sublimits, or price the account out of the standard market, and that the limits you do buy may not match what it costs to rebuild after a regional disaster.
What the standard policy does and does not turn on
Basic, broad and special causes-of-loss forms all list fire among the covered causes; the basic, broad and special causes of loss forms: what each covers guide shows how they differ. Nothing in the ISO forms excludes a fire because it began outside your property or in brush. What matters after a wildfire are the provisions that apply to every claim: the duty to protect the property from further damage once the fire is out, the exclusion of ordinance or law costs unless that coverage has been added, and the valuation and coinsurance terms. (Policy language varies; manuscript and surplus lines forms are less predictable than ISO forms, so read yours.)
What changes in wildfire territory is the contract around the fire coverage:
- A carrier may apply a higher deductible or a sublimit to locations it scores as wildfire-exposed, particularly on surplus lines paper. Ask whether one applies, and whether it is a percentage of values like the deductibles in named storm deductibles: how percentage wind deductibles work.
- A carrier may offer actual cash value instead of replacement cost on older or poorly maintained buildings.
- Limits may be tied to a margin clause or blanket limit that caps recovery per location.
- A carrier can non-renew at expiration even if you have never had a claim; see policy cancellation and nonrenewal: notice periods and your rights for state notice rules.
How underwriters score wildfire
Carriers rely on a wildfire score from a vendor model, then adjust it for what they learn about the building. The inputs are consistent across carriers even if the weights are not:
- Distance to wildland vegetation and the type of fuel: grass, brush, timber.
- Slope and aspect, because fire travels uphill faster.
- Access: one road in and out, narrow roads, gates.
- Fire protection: hydrant coverage, response time and the property's protection class.
- The building: roof covering, vents and eaves, siding, windows, decks, and what is stored against the walls.
- Defensible space and what the neighbors have done.
The catastrophe model entry explains how those scores feed rates. The scoring is why two buildings on the same street can get different answers, and why a documented upgrade, such as a Class A roof or ember-resistant vents, can change the quote.
What a wildfire loss touches
| Coverage | What to check |
|---|---|
| Building and contents | Replacement cost valuation, coinsurance percentage and whether the limit reflects post-disaster construction prices; see insurance to value: setting the right building limit |
| Ordinance or law | Rebuilding to current code, which in wildfire zones can mean fire-resistant materials; see ordinance or law coverage: paying for code upgrades after a loss |
| Debris removal | The ISO form caps it at a percentage of the covered loss, with a modest additional limit; ash and burned-material removal can exceed it |
| Business income and extra expense | Waiting period, period of restoration and whether limits reflect a long rebuild |
| Civil authority | Evacuation orders that block access; see civil authority coverage: when an order closes your doors |
| Off-premises utilities | Whether a precautionary power shutoff, with no physical damage at the utility, qualifies; see utility service interruption coverage: when an outage is insured |
| Spoilage | Power loss to refrigeration; see the spoilage coverage guide |
| Smoke and ash | Cleaning versus replacement of contents and HVAC; adjusters and policyholders often disagree |
| Landscaping | Fire coverage for trees, shrubs and plants is usually a small fixed amount |
Business income deserves a second look. It pays only when a covered physical loss suspends operations, and a rebuild after a regional fire can take longer than the limit or the maximum period the policy assumes. Evacuation orders can be covered under civil authority, but the standard form requires damage to other property that causes the closure and applies for a limited time.
When the market will not write you
Wildfire-exposed buyers usually end up in one of three places, sometimes in layers.
- The standard market. Carriers that write commercial accounts with an appetite for mitigated buildings. Documentation of defensible space, roofing and construction helps.
- Excess and surplus lines. Non-admitted insurers, often with higher deductibles and tighter terms, placed through a surplus lines broker. See excess and surplus lines insurance explained.
- FAIR Plans. State residual-market plans. California's FAIR Plan raised its commercial limits in 2025: on March 28, 2025, the Insurance Commissioner approved Division I commercial property limits of $20 million per building and $100 million per location, offered to new and renewal applicants (California Department of Insurance). FAIR Plan policies are built around fire and a short list of related perils, so businesses commonly pair them with a difference in conditions policy for what the plan does not write. Confirm what the commercial form includes before relying on it. FAIR Plans and residual markets for commercial property covers other states.
California's rules, as one example
California regulates this more closely than any other state, and its rules show where the industry is headed. The Department of Insurance's Safer from Wildfires regulation requires insurers to give discounts to residential and commercial policyholders who take mitigation steps, and to disclose the wildfire risk score on a property when you apply, before a renewal or non-renewal, and after you complete a mitigation measure and ask for it. The insurer must explain the score, and the policyholder can appeal it to the company and then to the Department (CDI FAQ, September 2026).
The Department's list of qualifying actions is a practical template for any wildfire-zone building: a Class A fire-rated roof, a 5-foot ember-resistant zone around the structure, noncombustible material for the bottom 6 inches of walls, ember- and fire-resistant vents, dual-pane windows or shutters, enclosed eaves, cleared vegetation under decks, sheds and outbuildings at least 30 feet away, trimming under state and local defensible-space laws, and participation in a Firewise USA community. Discounts differ by insurer, so compare. The Department's Sustainable Insurance Strategy also lets insurers use approved wildfire catastrophe models in rate filings in exchange for commitments to write in high-risk areas; check the Department's current rules and ask your broker how a given carrier's filing treats mitigation. For the state market overall, see california's commercial property and wildfire market and California.
The same exposure exists outside California. The 2021 Marshall Fire in Colorado and the 2023 Maui fire were reminders that grass and wind can move a fire into a built-up area, and Oregon and the other western states have large wildland-urban interface zones, where development meets wildland vegetation. Mitigation credit programs vary by state; mitigation credits and resilient construction for commercial property explains how to ask for them.
Los Angeles fires: what the claims show
The California Department of Insurance's July 2026 tally of the January 2025 Palisades and Eaton fires shows 2,990 commercial property claims with $1.81 billion paid, and 2,525 of those claims had received payments (CDI table). The category includes apartment, condominium and homeowners association buildings as well as non-residential commercial policies, so it is not a measure of what a shop or office building would see. The Department notes that claims typically mature over more than a year. Claims on a regional event run into demand surge, contractor shortages and permitting delays, which is why a policy that looked adequate on a quiet year can run short.
If you receive a non-renewal notice
Say a strip-center owner at the edge of a foothill town gets a non-renewal letter citing wildfire. A workable sequence:
- Note the notice date and your state's required notice period; the deadline sets the time you have.
- Ask the carrier for the wildfire score and the reasons. In California it is a right; elsewhere, ask the underwriter.
- Photograph and document mitigation already done, and get quotes for the fixes that move the score: roof, vents, vegetation clearing.
- Have your broker approach the standard market, then surplus lines, and keep a FAIR Plan application as a backstop.
- Compare terms, not only premium: wildfire deductible, sublimits, valuation basis, ordinance or law, business income limit.
- If you end up with a fire-only plan policy, buy the missing perils separately and align the policy periods.
Key takeaways
- Wildfire is covered as fire under standard property forms; the real issues are availability, deductibles, sublimits and valuation.
- Underwriters score fuels, slope, access, protection class and construction details, and documented upgrades can change quotes.
- Check ordinance or law, business income, civil authority and debris removal, because those are the coverages that run short after a regional fire.
- FAIR Plans and surplus lines carry much of the wildfire exposure, usually with a DIC policy for the gaps.
- California's Safer from Wildfires rules require commercial discounts and risk-score disclosure; elsewhere, ask your broker for the same information.