Wildfire Season and Your Jobsite: What Western Contractors Should Check Before Fall

Fire is a covered peril under most builders’ risk policies — which makes wildfire different from flood or storm surge, where the exclusion is the problem. With wildfire, the problem is availability, timing, and liability. Coverage in high-risk areas can be hard to place, carriers stop binding new policies once a fire is actively burning nearby, and the biggest financial exposure many contractors carry isn’t fire damaging their job — it’s their own equipment or hot work starting one.

Fall is when this matters most. Across much of the West, the driest fuels and the strongest offshore wind events arrive in late summer and autumn, well after the season “starts.” If you have active projects in wildfire country, the window to fix coverage gaps is now, before conditions peak and before the market closes.

Why fall is the pressure point for Western jobsites

Wildfire risk builds through the summer as vegetation dries out, but the most destructive fires in the West have historically been driven by wind, not heat alone. In California, the Santa Ana winds in the south and the Diablo winds in the north typically arrive in autumn, pushing fire through dry fuel at speeds no crew can outrun. Across the Intermountain West and Pacific Northwest, late-season fires often burn in the driest conditions of the year.

The practical result for a contractor is that August through November is when three things happen at once: fire behavior gets worse, insurance capacity gets tighter, and the operational restrictions on your crews get stricter. A project that was easy to insure in March may be difficult or impossible to insure in October.

The states where this hits hardest are California, Arizona, Colorado, Oregon, Washington, Idaho, Montana, Nevada, Utah, and New Mexico — but risk isn’t uniform within them. What matters is whether a specific jobsite sits in or near the wildland-urban interface (WUI), the zone where development meets undeveloped wildland vegetation. Two projects thirty miles apart in the same state can be underwritten completely differently based on brush proximity, slope, road access, and distance to a fire station.

Fire is covered — availability is the real problem

Start with the good news. Unlike flood, which is excluded from standard builders risk, fire is a standard covered peril. If a wildfire burns a structure you’re building and you have builders risk in force, the policy is generally designed to respond.

The difficulty is getting and keeping that policy. In wildfire-exposed areas, carriers have tightened underwriting considerably. Admitted standard-market carriers may decline a project outright based on its location, which pushes the risk into the excess and surplus (E&S) market — where coverage is available but written on non-admitted paper, often at higher cost and with more conditions attached. In some states, a FAIR Plan exists as a market of last resort for property coverage when no voluntary carrier will write it, though what each state’s plan offers and whether it fits a construction project varies, so availability has to be confirmed case by case.

Underwriters evaluating a wildfire-exposed project typically look at proximity to brush and heavy fuels, slope and terrain, the property’s fire protection class and distance to a responding fire station, available water supply, road access and width for apparatus, defensible space around the structure, construction materials and whether ignition-resistant assemblies are being used, and the site’s own security and housekeeping practices.

Several of those you control. A jobsite with cleared defensible space, organized material storage, and disciplined housekeeping presents better and often prices better than one with brush against the foundation and debris piled around the perimeter.

The binding moratorium: the deadline nobody tells you about

This is the single most important operational fact in this article, and most contractors learn it at exactly the wrong moment.

When a wildfire is actively burning, carriers routinely impose a binding moratorium on new policies and coverage changes in the affected area — often defined by distance from the fire perimeter or by ZIP code. During a moratorium, you generally cannot buy new coverage, increase limits, or add a project in that area. The market effectively closes until the fire is contained.

The consequence is straightforward. If you’re watching smoke on the horizon and calling your agent to add builders risk to a project, you are almost certainly too late. Wildfire coverage has to be in place before there’s a fire to worry about — which is why a pre-season review in July or August is worth far more than a phone call in October.

Which coverage responds to which wildfire loss

Wildfire produces several distinct kinds of loss, and they don’t all land on the same policy. This is where contractors most often assume one policy is doing work it isn’t.

What happens	Coverage that typically responds	The catch
Fire destroys or damages the structure under construction	Builders risk / course of construction	Fire is a covered peril, but placement in WUI areas may require E&S or a FAIR Plan
Smoke, soot, or ash damages materials and installed work	Builders risk (fire and smoke)	Disputes often turn on whether there’s demonstrable physical damage versus surface residue — document thoroughly
Your tools, machinery, or rented equipment burn	Contractor’s equipment / inland marine	Check whether items are scheduled or blanket, and whether rented equipment is included
Evacuation order blocks access, but your site is undamaged	Civil authority coverage, if endorsed	Usually requires nearby physical damage from a covered peril, with waiting periods and time limits
Fire or evacuation delays completion past a contract deadline	Soft costs / delay in completion	Must be endorsed before the loss; not automatic
Your hot work or equipment ignites a wildfire	General liability	Potentially catastrophic exposure — see below
A public safety power shutoff halts work	Generally not covered	Utility interruption typically needs a specific endorsement; plan for generators

The row that deserves the most attention is the liability one.

The exposure most contractors underestimate: starting the fire

A wildfire that damages your project is a property loss with a defined limit. A wildfire your operations cause is a liability loss with no natural ceiling.

Construction activity creates ignition sources constantly. Welding, cutting, and grinding throw sparks. Roofing torches and heat guns produce open flame. Chainsaws, mowers, and skid steers can strike rock or emit exhaust sparks. Vehicles parked on dry grass have started fires with nothing more than a hot catalytic converter. Even a discarded cigarette on a dry site is enough.

When a contractor’s operations are found to have started a wildfire, the exposure extends well past the immediate damage. Property owners and their insurers pursue the responsible party through subrogation, and states can seek recovery of the public cost of fighting the fire.
A single ignition on a windy day in dry fuel can generate losses that dwarf any project’s value — which is where general liability limits, and the excess or umbrella coverage sitting above them, become the difference between a claim and a closed business.

How to mitigate this risk?

Three things reduce this risk meaningfully. First, run a formal hot work program: permits for any spark- or flame-producing work, cleared and wetted work areas, extinguishers and water on hand, and a fire watch that stays on site for a period after the work stops.
Second, respect red flag warnings and agency fire restrictions — during extreme conditions, land management agencies and fire authorities restrict or prohibit certain equipment use and outdoor activity. In forested regions industrial operations may be shut down entirely at high precaution levels. Third, maintain equipment: functioning spark arrestors on small engines, no dragging chains, and no parking or idling on dry vegetation.

Beyond reducing the chance of a catastrophic claim, a documented hot work program is exactly the kind of risk management that underwriters reward when they’re deciding whether to write you at all.

Smoke, air quality, and your crews

Wildfire affects a jobsite long before flame reaches it. Heavy smoke can shut down outdoor work for days across an entire region — and that’s a worker safety obligation, not just a productivity problem.

California has an established Cal/OSHA wildfire smoke protection standard that requires employers to act when fine particulate air quality reaches unhealthy levels, including monitoring conditions, communicating with workers, providing training, and making respirators available. Oregon and Washington have adopted their own wildfire smoke rules for outdoor workers. Requirements and thresholds differ by state and change over time, so confirm the current rule with your state’s occupational safety agency rather than relying on a general summary.

From an insurance standpoint, smoke exposure creates a workers’ compensation dimension on top of the property one. Respiratory complaints tied to prolonged smoke exposure can become claims, and a documented air-quality monitoring and response protocol protects both your crews and your loss history.

Common mistakes Western contractors make before fall

The patterns that show up in denied claims and uninsurable projects are consistent:

• Waiting until fire season to place coverage, then hitting a binding moratorium.
• Assuming a FAIR Plan or E&S policy is equivalent to standard coverage without reading what it actually covers and excludes.
• Insuring to contract price rather than current rebuild cost, leaving a shortfall on a total loss when material and labor prices have moved.
• Carrying minimum general liability limits in a region where a single ignition could generate losses many times that amount, with no umbrella or excess layer above it.
• Running hot work without permits or a fire watch, which invites both the loss and, where the policy contains a hot work warranty or condition, a coverage dispute.
• Assuming an evacuation is automatically covered. Lost time with no physical damage to your site usually isn’t covered without civil authority or delay-in-completion endorsements.
• Ignoring defensible space on the jobsite — brush and debris against the structure both increase the odds of loss and hurt you at underwriting.
• No pre-season documentation of the work in place, stored materials, and equipment on site, which weakens every subsequent claim.

Cost considerations without cutting protection

Wildfire-exposed coverage costs more than it did, and there are legitimate ways to manage that.

The most underrated lever is presenting the risk well. Underwriters price uncertainty. A submission that documents defensible space, a hot work permit program, equipment maintenance, site security, water availability, and ignition-resistant construction gives an underwriter a reason to write the account and to price it better than an identical project submitted with no supporting detail.

Beyond that: set limits to realistic rebuild cost, since both over- and under-insuring cost you money — the latter through a coinsurance penalty at claim time. Take a higher deductible only to the extent you could genuinely absorb it on your largest active job. Match the policy term to a realistic construction window and extend it deliberately rather than letting it lapse mid-project. And work with a broker who has real E&S access, because in wildfire territory the difference between a workable quote and no quote at all is usually market access, not price shopping.

Where the money should not be saved is liability limits. Given that a contractor-caused ignition is the one loss with no natural ceiling, an umbrella or excess layer is generally the least expensive protection per dollar of limit that a Western contractor can buy.

A realistic scenario

A framing contractor has two custom homes going up on a hillside lot in a wildland-urban interface zone. Both are framed and partially sheathed in early September.

The contractor who is prepared placed builders’ risk in July, before the market tightened, with limits set to current rebuild cost. The site has cleared defensible space, materials are stacked away from the brush line, and there’s a hot work permit process with a fire watch. Photos of the work in place and stored materials were taken in August. When a fire runs through the canyon in October and damages one structure, there’s a policy in force, a documented claim, and a defensible position that the contractor’s own operations had nothing to do with the ignition.

The contractor who isn’t prepared planned to add builders risk “once the framing was up,” called the agent when smoke appeared, and hit a binding moratorium. The crew had been cutting metal near dry grass without a permit or fire watch. Same fire, same hillside — but now there’s an uninsured property loss and an open question about ignition source that could turn into a liability claim far larger than the homes themselves.

What to check before fall

Work through this on every active or planned project in wildfire country:

• Confirm builders risk is in force now, before any moratorium can close the market.
• Verify limits reflect current rebuild cost, not the original contract price.
• Review general liability limits and confirm whether an umbrella or excess layer is in place.
• Read the policy for hot work conditions, protective safeguard requirements, and any wildfire-specific warranties.
• Confirm whether you have civil authority, delay-in-completion, or soft costs coverage if an evacuation could halt the job.
• Check that contractor’s equipment coverage includes rented and leased machinery.
• Establish or document a hot work permit and fire watch program.
• Clear defensible space around structures and material storage, and keep the site clean.
• Photograph work in place, stored materials, and equipment now, and update it monthly.
• Set up an air-quality monitoring and response protocol consistent with your state’s rules.

Frequently asked questions

Does builders risk cover wildfire damage?

Generally yes. Fire is a standard covered peril under most builders risk policies, so wildfire damage to a structure under construction is typically covered. The greater challenge in high-risk areas is obtaining and keeping the policy, which may require the excess and surplus market or a state FAIR Plan.

Can I buy wildfire coverage once a fire has started nearby?

Usually no. Carriers commonly impose a binding moratorium on new policies and coverage changes in areas near an active fire, meaning coverage must be in place before a fire threatens the area.

Is smoke and ash damage covered?

Smoke damage is generally covered under fire coverage, but claims can turn on whether there is demonstrable physical damage rather than surface residue that can be cleaned. Thorough documentation of the condition of materials and installed work strengthens these claims considerably.

Am I liable if my crew accidentally starts a wildfire?

Potentially, yes, and it can be the largest exposure a contractor faces. General liability responds to third-party property damage, but wildfire losses can be enormous — property owners and their insurers pursue responsible parties, and states may seek recovery of fire suppression costs. Adequate liability limits plus umbrella or excess coverage matter here.

Does insurance cover lost time when a wildfire evacuation shuts down my jobsite?

Not automatically. If your site isn’t physically damaged, lost time is typically addressed only through civil authority, delay in completion, or soft costs coverage, which must be endorsed before the loss and generally carry waiting periods, time limits, and specific triggering conditions.

Why did my carrier non-renew my wildfire-exposed project?

Carriers have tightened underwriting in wildland-urban interface areas, and some have reduced or withdrawn capacity in high-risk regions entirely. When a standard carrier declines, coverage is often placed in the excess and surplus market or, where available, through a state FAIR Plan.

What is the wildland-urban interface and why does it affect my rate?

The WUI is the area where development meets undeveloped wildland vegetation. Projects in or near it face higher ignition and spread risk, harder firefighting access, and greater loss severity, all of which underwriters price for — and which drive whether a project can be written at all.

Review your coverage before the wind changes

Wildfire is one of the few risks where the insurance decision has a hard deadline attached to it. Once a fire is burning nearby, the market closes, and whatever coverage you had in place is the coverage you have. Everything else — limits, endorsements, umbrella layers, equipment coverage — has to be handled while conditions are still calm.

If you have active or planned projects anywhere in the West, this is the season to confirm that your builders risk is in force and correctly valued, that your liability limits reflect what a contractor-caused ignition could actually cost, and that your jobsite practices support both a defensible claim and a better underwriting result.

Affordable Contractors Insurance works with contractors across the country on exactly these placements, including builders risk, general liability, umbrella and excess layers, and hard-to-place E&S risks that standard carriers decline. If you’d like a straightforward review of where your wildfire exposure actually sits, request a coverage review and we’ll walk through it with you.