Authored by: Rimkus Forensics Marketing Team
A wildfire insurance claim moves through a defined sequence: first notice of loss (FNOL), cause and origin investigation, smoke and environmental assessment, valuation, coverage evaluation, and rebuild. The California Department of Insurance (CDI) reported that by March 3, 2026, insurers had paid $23.7 billion on the 41,800 claims filed for the 2025 Eaton and Palisades fires, and each file involves early decisions regarding reserves, investigation priorities, and claim handling while critical facts are still being developed.
Cause and origin analysis, smoke and soot assessment, environmental testing, and contents valuation may enter the file at different points along that sequence. Some investigation findings may later be relevant to recovery efforts or legal proceedings, depending on the circumstances of the claim.
Key takeaways for wildfire insurance claims
Wildfire losses combine compressed claim-handling timelines with technical questions regarding cause, damage mechanisms, contamination, valuation, and repair scope. Forensic findings can affect claim handling; how much depends on the policy, the jurisdiction, and the evidence available.
What forensic findings can clarify
- Cause, origin, and fire spread timing can help establish the sequence of events, identify potential contributing factors, and support subsequent claims evaluation
- Evidence preservation failures have led courts to dismiss subrogation actions or exclude cause-and-origin testimony
What methodology investigators reference
- Investigators reference National Fire Protection Association (NFPA) 921 and the National Wildfire Coordinating Group guide when circumstances support working back to the ignition area
- Laboratory analysis helps distinguish suspected wildfire residue from background combustion sources
For assistance evaluating cause, origin, and claim documentation, contact us to discuss specific requirements.
What does a wildfire claim look like from first notice to final settlement?
Depending on applicable law, the claims-handling clock starts at FNOL. Under California’s fair claims rules, a carrier must acknowledge the claim and begin investigating within 15 calendar days, accept or deny within 40 calendar days of receiving proof of claim absent written notice of the need for additional time, and pay within 30 days of acceptance, per the CDI’s 2026 adjusting guide.
National Association of Insurance Commissioners (NAIC) model acts provide broader claim-handling standards elsewhere, and California’s declared-emergency overlays extend proof-of-loss periods and additional living expense (ALE) minimums.
Catastrophe operations guide the work between those markers. Carriers build event footprints from satellite and aerial imagery, geocode them against insured locations, assign adjusters by damage severity, and inspect the most damaged properties first.
In large events, carriers often identify total losses remotely before field access opens. Settlement typically unfolds in stages: smoke and contamination claims can surface long after direct fire claims close, and early handling decisions can affect whether subrogation remains viable later.
That sequencing carries directly into how evidence gets preserved once a claim moves past initial notice.
How may evidence preservation affect later wildfire claim decisions?
Early preservation of relevant evidence is often important when scene conditions, products, or potential ignition sources may require additional investigation. The Allstate decision illustrates how evidence preservation can affect later subrogation.
ASTM International standards E860, E1188, and E1459, among others, provide guidance for documenting evidence condition, collection, preservation, labeling, and chain of custody. When destructive examination is anticipated, investigators should document the proposed testing, preserve the as-found condition where practical, and consider appropriate coordination with relevant stakeholders.
Once evidence is secured, the next stage of the file is establishing cause, origin, and the fire’s timeline.
How do investigators establish cause, origin, and fire spread timing?
Wildfire cause and origin work follows a systematic method. NFPA 921, 2024 edition, provides a widely recognized framework for fire investigation methodology. The 2024 edition includes a revised chapter on wildfire investigations, and its applicability may vary by jurisdiction, assignment scope, time period, and circumstances.
The National Wildfire Coordinating Group guide moves from a general origin area to a specific origin area and then to the ignition area, the smallest area the investigator can define using available fire pattern indicators. Investigators often work from more intense burning toward less intense burning, reading indicator clusters that include sooting and char angle while also considering protection patterns. Unlike a structure fire, the wildland specific origin area often contains more unburned material.
A property-specific fire arrival chronology may matter as much as origin. The National Institute of Standards and Technology (NIST) compiled more than 2,200 fire spread and behavior observations in its Camp Fire timeline, which recorded winds up to 22 m/s (50 mph) and spotting up to 6.3 km (3.9 miles) into the community.
That chronology may help establish the sequence of fire spread across affected properties and support technical evaluation of individual losses where multiple fire fronts or ignition areas are involved.
With cause and origin established, the file typically turns to a fire damage inspection of whether smoke and soot damaged a structure the flames never reached.
What does smoke and soot damage assessment add to the claim picture?
Standing homes near a burn perimeter may generate a distinct claim population, and industrial hygiene practice distinguishes forensic attribution from exposure assessment. A forensic investigation evaluates whether detected materials originated from the fire in question; an exposure assessment evaluates occupancy safety.
Tape lift sampling is one commonly used method for evaluating char, ash, and smoke and soot particles associated with wildfire debris; wipe sampling and other sampling methods may support chemical or environmental analysis where appropriate.
Fireplace ash, barbecue residue, and smoking products can deposit combustion byproducts similar to wildfire residue, which makes attribution technically difficult. Background sampling matters, and the CDI’s Smoke Claims Task Force has reported that no fixed numerical levels of settled combustion particulates universally denote wildfire impact.
Documented findings help inform decisions regarding cleaning, restoration, replacement, and, where appropriate, additional environmental testing. On perimeter losses, smoke claims often emerge months after initial adjustment, while direct fire claims cluster in the event year.
Smoke findings usually feed directly into a separate but related question: what environmental testing adds to the file.
Why does environmental testing matter after a wildfire loss?
Environmental testing translates visible wildfire damage into medium-specific evidence. The U.S. Environmental Protection Agency (EPA) has reported that ash from burned structures in the wildland-urban interface generally contains more harmful chemicals than forest ash, and the CDI has acknowledged that fire debris may contain asbestos and heavy metals.
Without a single federal numerical clearance standard for indoor surfaces, ash, or post-fire soil, testing design and interpretation become important when evaluating contamination, remediation scope, and environmental conditions following a wildfire.
Cause findings, smoke data, and environmental results together shape how a total loss gets valued.
How is total loss and contents valuation typically approached?
Jurisdictions may not apply a universal percentage-of-damage threshold for total loss; the classification typically rests on scope-of-loss documentation covering degree of damage, materials quality, and measurements.
Valuation often splits along the actual cash value (ACV) and replacement cost value (RCV) line, with RCV policies typically paying ACV first and releasing recoverable depreciation once repair is documented. Depreciation itself is jurisdiction-sensitive.
California’s Fair Claims Settlement Practices Regulations, 10 CCR § 2695.9, require every depreciation adjustment to be itemized, measurable, and explained to the claimant in writing. The regulation also excludes necessary repair labor from depreciation.
Nebraska reaches the opposite result on labor. Its Supreme Court held in Henn v. American Family Mutual Insurance Co., 295 Neb. 859 (2017), that labor can be depreciated when a policy does not define actual cash value or depreciation.
Contents claims carry their own overlay. For total losses tied to a California state of emergency, Insurance Code Section 10103.7 currently requires insurers to offer no less than 60% of the personal property limit, up to $350,000, without an itemized inventory, subject to statutory caps and updates; the insured may later file a full itemized claim.
Contents valuation grounded in documented like-kind-and-quality pricing supports consistent, well-documented valuation and settlement analysis.
Valuation questions and coverage questions tend to surface together, since both depend on the same underlying evidence.
How may these findings support coverage evaluation and settlement?
In Gharibian v. Wawanesa General Insurance Co., 108 Cal. App. 5th 730 (2025), the court found no covered direct physical loss on those facts, where the evidence showed debris was easily cleaned or removed from the property. From a technical perspective, testing helps distinguish removable surface residue from physical alteration and may provide information relevant to subsequent claims evaluation.
Unresolved cause is a source of reserve uncertainty during claims handling, and early cause-and-origin findings can provide more reliable technical information regarding the origin, development, and progression of the fire. Wildfire investigations involving utility equipment may require evaluation of electrical systems, vegetation interactions, weather conditions, maintenance records, and other technical evidence.
Once coverage and scope are resolved, the file moves into rebuild, where many of the same cause and origin findings resurface in a different form.
What considerations carry into the rebuild phase after a wildfire settlement?
Rebuild economics often turn on current code. The California Building Standards Code took effect January 1, 2026, relocating wildfire construction requirements into the California Wildland-Urban Interface Code (Title 24, Part 7, Chapter 5), which governs roofing, eaves, vents, and glazing.
Current building codes and local reconstruction requirements may affect rebuilding methods, materials, project scope, and costs. The extent to which those additional costs are covered depends on the applicable policy language and governing law.
During phased debris removal, crews often clear household hazardous waste before ash removal. Los Angeles County guidance advises against reusing an existing foundation after a major fire, though a licensed engineer can certify an existing foundation for reuse where testing supports it. Structural evaluation at this stage clarifies foundation questions and the true scope of code-upgrade costs.
Where forensic expertise may reduce claim uncertainty
Engagement scope determines the questions each expert can answer and the materials each expert reviews. Coordinated scopes, defined at the outset, reduce gaps or overlaps when several disciplines work the same loss.
Engagement scope should clearly define each expert’s assignment, responsibilities, assumptions, deliverables, and the materials to be reviewed before work begins.
Experts should apply appropriate methodology, evaluate both supporting and contradictory evidence, consider reasonable alternative explanations, and clearly document the assumptions and limitations of their analysis. Objective evaluation of the available evidence is fundamental to a reliable forensic investigation.
Rimkus forensic professionals offer expertise in cause and origin investigation, smoke and soot assessment, environmental evaluation, and damage assessment and contents valuation for wildfire losses. For a qualified review of wildfire claim documentation, contact us to discuss specific requirements.
Frequently asked questions about wildfire insurance claims
What does a standard homeowner’s policy cover and exclude for wildfire damage?
Standard homeowner policies generally cover wildfire as a named peril, extending to dwelling repair or rebuild, detached structures, personal belongings, and smoke damage even without direct flame contact. Common exclusions may include intentional acts, poor maintenance, land or soil movement, and business-use outbuildings, subject to policy language and jurisdiction.
When should smoke damage be evaluated after a wildfire?
Smoke damage should be evaluated as early as practical after site access becomes available. Early documentation helps preserve evidence of visible residue, odor, deposited combustion particles, and environmental conditions before cleaning, weathering, or occupancy changes alter the scene. The appropriate timing and scope of sampling depend on the property condition, assignment objectives, and applicable standards.
How do moratoriums or non-renewals in high-risk fire zones affect coverage?
Carrier-imposed moratoriums during active wildfires temporarily freeze new business, while post-disaster non-renewal moratoriums protect existing policyholders in declared emergency zones from cancellation for a statutory period. Once protections expire, insurers can resume non-renewals, and affected owners may need to turn to state FAIR Plans or surplus lines carriers.
This article is intended to provide general information and insights into prevailing industry practices. It is not intended to constitute, and should not be relied upon as, legal, technical, or professional advice. The content does not replace consultation with a qualified expert or professional regarding the specific facts and circumstances of any particular matter.