Marshall Fire underinsurance: what 40% of homeowners got wrong

Key takeaways#

• ~40% of Marshall Fire total-loss homeowners were underinsured by 20%+ despite paying for replacement-cost coverage (Colorado DORA analysis).
• Carrier-side cost estimators (Marshall & Swift/Boeckh, Verisk 360Value) underpriced rebuild by 15-25% pre-fire across the affected market.
• Demand-surge pricing added a documented 20-40% premium on labor and materials in the months following the fire — invisible to any pre-fire Coverage A.
• Extended Replacement Cost at +25% was insufficient; +50% emerged as the post-Marshall industry recommendation for wildfire counties.
• Ordinance & Law sub-limits at 10% of Coverage A left typical owners $30,000-$80,000 short on code-required rebuild upgrades (energy code, wildfire-resistant materials, modern electrical).

The carrier-side estimation gap#

For decades the homeowners-insurance industry has outsourced rebuild-cost estimation to two software platforms: CoreLogic Marshall & Swift/Boeckh and Verisk 360Value. A carrier underwriter enters home characteristics — square footage, year built, construction class, quality tier, ZIP code — and the platform returns a Coverage A recommendation. The number flows directly onto the declarations page. Most homeowners never see the calculation behind it.

The Marshall Fire exposed what the Colorado Division of Insurance, in its 2022-2023 market-conduct review, called a "systemic" gap between these platform estimates and actual reconstruction cost. The DORA analysis of Marshall-Fire claims documented that 36-42% of total-loss policyholders held Coverage A that was at least 20% below the cost their contractors actually quoted to rebuild — even before demand-surge pricing took effect.

The estimators have several known weaknesses. They rely on regional cost indexes that update quarterly, lagging real-world inflation that ran 8-15% per year for residential construction inputs from 2021 through 2024 (BLS PPI series WPUSI012011, residential construction inputs). They classify construction at a level of detail that often misses true finish quality. And they do not contemplate the post-disaster supply-and-labor shock that any regional catastrophe creates.

Demand surge: the post-disaster pricing shock#

When 1,000 homes burn in a single weekend, the regional construction industry cannot absorb the demand at pre-fire prices. Lumber, drywall, roofing, windows, concrete, copper, and HVAC equipment all spike. Skilled labor — framers, electricians, plumbers — gets imported from neighboring states at travel and per-diem premiums. Subcontractor bids climb 20-40% above pre-disaster norms, and they stay elevated for 18-36 months while the regional rebuild works through inventory.

The BLS Producer Price Index for residential construction inputs documented the Marshall-area surge: prices rose roughly 14% in the six months after the fire, on top of the 12% national construction inflation already underway from supply-chain dislocation. A pre-fire $400/sqft rebuild estimate was effectively a $480-$560/sqft job by the time crews were actually pouring foundations in mid-2022.

This dynamic is not unique to Marshall. The 2017 Tubbs Fire (Sonoma County), 2018 Camp Fire (Butte County), 2023 Lahaina Fire (Maui), and 2024 Hurricane Helene (western North Carolina) all produced documented demand-surge premiums in the 15-40% range. Demand surge is not a tail risk — it is the expected behavior of regional construction markets after a regional disaster.

Extended Replacement Cost: why +25% became +50%#

Extended Replacement Cost is an endorsement that pays above the Coverage A limit when actual reconstruction costs exceed the dwelling limit. It exists precisely to absorb demand surge and estimator error. Pre-Marshall, the standard carrier offering was +25% of Coverage A. The Marshall claims experience showed that +25% was a coin-flip in fire counties — many policyholders blew through it and still came up short.

Post-Marshall, most major carriers raised their available ERC ceiling. State Farm, USAA, Allstate, Liberty Mutual, Travelers, and Farmers all offer +50% in Colorado wildfire counties; several offer Guaranteed Replacement Cost (unlimited buffer) in select markets, though the GRC market has contracted in California and is selective in the Pacific Northwest. Where GRC is offered, lender-mandated jumbo mortgages often require it.

The math is straightforward. On a $600,000 Coverage A policy: +25% ERC = $750,000 ceiling; +50% ERC = $900,000 ceiling. The 2022 average Marshall Fire rebuild cost for a 2,500 sqft home came in at $720,000-$860,000 per contractor invoices submitted to United Policyholders — squarely inside the +50% band and frequently outside the +25%.

Ordinance & Law: the silent sub-limit#

A home built in 1985 was built to the 1985 building code. After a covered total loss, the rebuild must comply with the current code — which by 2026 typically means substantial upgrades in electrical (AFCI/GFCI throughout, 200-amp service), energy code (R-49 attic insulation, low-E windows in most climate zones), accessibility, and — in wildfire counties — wildland-urban-interface (WUI) compliant construction (Class A roof, ember-resistant vents, ignition-resistant siding within five feet of the foundation).

The Ordinance or Law endorsement (often Coverage E on the declarations) covers the increment from "rebuild as it was" to "rebuild to code." Carriers default this to 10% of Coverage A — $60,000 on a $600,000 policy. Actual code-upgrade costs on a 1970s-1990s Marshall-area home ran 15-30% of rebuild value, putting Ordinance & Law shortfalls in the $30,000-$80,000 range on top of the dwelling shortfall.

United Policyholders, the nonprofit consumer advocacy organization that has tracked post-disaster underinsurance since the 2003 Cedar Fire, lists Ordinance & Law underinsurance as one of the top three structural gaps in modern homeowners policies. The fix is to raise Coverage E to 25% of Coverage A — most carriers offer it as a $30-$120/year endorsement.

State legislative response: Colorado SB22-206#

Colorado responded to Marshall with SB22-206 (signed into law in 2022), which directed the Division of Insurance to study underinsurance and required carriers to disclose more about their cost-estimation methodology at quote time. The law did not mandate higher Coverage A floors and did not regulate the estimator software directly, but it did create a documented record of the industry-wide problem.

California has gone further. SB 824 (2018) restricted carrier non-renewals in declared-disaster ZIP codes, and AB 1816 (2018) and related legislation expanded disclosure requirements around cost estimators. Oregon HB 3242 (2023) created an Oregon Insurance Marketplace as a market of last resort for wildfire-exposed homeowners, paralleling the California FAIR Plan.

For homeowners, the practical implication is that regulatory action has not closed the gap. State law cannot force carrier software to estimate accurately. The protective action remains on the policyholder side: run an independent cost estimate, layer ERC and Ordinance & Law, and re-evaluate periodically.

Action items for at-risk homeowners#

For homeowners in California, Colorado, Oregon, Washington, Arizona, New Mexico, Texas, Idaho, Montana, Utah, and Nevada — the wildfire-exposed western states — the Marshall lessons translate to a specific checklist. First: run an independent rebuild-cost calculator (this site, or a contractor estimate from a licensed local builder) and compare against your carrier-quoted Coverage A. If the gap is 10% or more, request a re-evaluation in writing.

Second: confirm your Extended Replacement Cost endorsement is at least +50%, not the default +25%. Third: raise Ordinance & Law to 25% of Coverage A. Fourth: confirm Loss-of-Use (Coverage D) covers at least 24 months of equivalent living expenses — post-disaster rebuilds in wildfire counties routinely take 18-30 months because the entire regional contractor base is booked. Fifth: read your declarations page for wildfire-specific exclusions or sub-limits that may have appeared at recent renewals as carriers re-priced wildfire risk.

Sixth, and most underappreciated: document the home today. Walk every room with a video camera, open every cabinet and closet, photograph permanent built-ins, save permits and contractor invoices for any renovation. Post-disaster claims succeed or fail on documentation, and the time to assemble it is before the fire, not after.

FAQ#

Why were 40% of Marshall Fire homeowners underinsured?

Per Colorado DORA analysis, the gap traced to four compounding factors: carrier-side cost estimators (Marshall & Swift/Boeckh, Verisk 360Value) underpricing rebuild by 15-25%; post-disaster demand-surge pricing adding another 20-40% on labor and materials; insufficient Extended Replacement Cost (the standard +25% was inadequate); and Ordinance & Law sub-limits capped at 10% of Coverage A when code upgrades ran 15-30%.

Is +25% Extended Replacement Cost enough in a wildfire county?

No. The Marshall claims experience showed that +25% was insufficient for a majority of total-loss homeowners. Post-Marshall, +50% emerged as the practical floor in any documented wildfire county. Guaranteed Replacement Cost, where still offered, is preferable.

Does Colorado SB22-206 require carriers to fix the underinsurance problem?

No. SB22-206 directed the Division of Insurance to study the problem and required additional disclosure at quote time, but it did not regulate the cost-estimator software directly and did not set a Coverage A floor. The protective action remains on the policyholder side: independent estimates, layered endorsements, periodic re-evaluation.

How long does post-disaster rebuilding typically take?

In a regional wildfire event, rebuilds typically take 18-30 months from claim to occupancy. The regional contractor base is fully booked, materials are on allocation, and permit offices are backlogged. Loss-of-Use coverage sized for 12 months is structurally inadequate; 24 months is the practical minimum.

Citations#