A fire or explosion at a metal plant is several claims at once. The equipment, the tooling and the downtime decide the outcome.
Last updated: October 2026
Furnaces, presses, cranes and CNC machines you cannot buy off the shelf. Patterns and dies that may belong to your customers. Production measured in tons and machine hours. We document and negotiate the full loss for the policyholder, and we tell you plainly when a question belongs with your attorney.
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Watson Grinding, a Houston metal shop, filed for Chapter 11 bankruptcy 13 days after its January 2020 explosion. For the plants that survive a major loss, early cash, evidence kept from the first hour, and the policy's lines around furnaces, molten metal and tooling decide what comes next.
Source: ABC13 Houston, February 2020.
What to do before the cleanup starts
Most metal plant fires begin in something that can be inspected: a hose, a valve, a furnace coil, a dust collector, a machine. That makes the cause investigation part of your claim, and the evidence for it is easy to destroy in the first days.
- 1
Make it safe, then stop. Get furnaces, gas systems and cranes made safe by qualified people, then keep everything near the origin in place until investigators and the insurer have seen it.
- 2
Keep the parts. Hoses, fittings, valves, regulators, gas detection heads and panels, collector components and anything removed from the origin go into a chain-of-custody log.
- 3
Photograph everything before anything moves: every machine and its data plate, stock by location and heat number, furnaces, ladles, overhead dust and crane runways.
- 4
Give notice to your broker and every insurer that may respond: property, equipment breakdown, tooling or inland marine, liability and umbrella, pollution. Log claim numbers and every call.
- 5
Log every agency contact. Large events can bring the fire marshal, ATF, OSHA and the U.S. Chemical Safety Board. Your reporting duties and how you respond to investigators are questions for your attorney.
- 6
Track every dollar from day one. Outsourced work, rentals, freight, overtime and security are extra expense, and they are only recoverable if they are documented.
- 7
Do not sign a restoration contract on the spot. One Ohio machine shop owner stopped a restoration firm after a $50,000 first-day bill and had his own crew clean the machines.
Sources: U.S. Chemical Safety Board Watson Grinding final report (2023); Today's Machining World, "Gone by Morning" (2006).
What the Watson Grinding explosion teaches a plant owner
On January 24, 2020, propylene leaked overnight from a degraded hose at Watson Grinding & Manufacturing in northwest Houston. Tank valves had been left open, and the gas detection system had been disconnected, so no alarm sounded. The next morning, the gas most likely ignited when a worker turned on the lights. Three people died, and the City of Houston counted more than 450 damaged homes and businesses.
Watson, a family company founded in 1960 that served refining, offshore and drilling customers, filed for Chapter 11 within 13 days, let its workforce go, and was later liquidated. ATF spent more than 1,400 hours on site and found no crime. The CSB published its final report three and a half years after the blast. Houston passed a new hazardous materials ordinance in December 2020.
Lesson 1
The parts are the case
A hose, valves left open and a disconnected detector became the center of every investigation and lawsuit. Keep every gas, detection and fire protection component and every service ticket.
Lesson 2
Vendors end up in the case
Gas suppliers and the company that serviced the detection system were sued. Harris County juries returned reported verdicts against that company in 2025 and 2026, which it said it would appeal, while another jury in May 2026 found Watson alone responsible. Your contracts' indemnity and waiver-of-subrogation terms matter, and that review belongs with your attorney.
Lesson 3
Neighbors become claimants, and so can you
A business owner across the street said the blast destroyed his business for more than a year. If a neighbor's explosion shuts you down, start with your own property, business income and civil authority coverage rather than waiting on someone else's insurer.
Sources: CSB Watson Grinding final report; ABC13 Houston coverage 2020 to 2026; Texas Lawbook (May 2026).
Gas, metal dust and molten metal: why the cause investigation shapes your claim
Flammable liquid and gas fires were about 10% of fires at U.S. industrial and manufacturing properties but caused 40% of civilian deaths (NFPA, 2003 to 2006). Metal dust was 10.8% of recorded combustible dust incidents in 2022, with 22 injuries from 20 fires and explosions, and dust collectors were the leading equipment involved across all materials.
Flammable gas in coating and cutting
Thermal spray, HVOF and cutting use fuel gases such as propylene.
What it means for your claim: Hoses, fittings, valves and detection records decide cause.
Molten metal and water
Water reaching molten metal caused a steam explosion at an Ohio foundry in 2023 that killed one worker and injured 15; OSHA cited lockout/tagout failures.
What it means for your claim: Cooling-water logs and coil inspections matter, and the furnace failure and the blast damage may fall under different coverages.
Induction furnace failure
In October 2024 an induction furnace holding about 10,000 pounds of molten metal reportedly exploded at Delta Centrifugal in Temple, Texas, severely burning five workers.
What it means for your claim: Furnace logs and the manufacturer's inspection decide whether the event reads as breakdown or a covered explosion.
Molten metal that lights overhead dust
At JW Aluminum's South Carolina cast house in 2020, the company says dust on a beam 35 feet up carried fire through the rafters, causing more than $100 million in damage.
What it means for your claim: Overhead dust makes the whole building the scope, and how the cause is first described can set the limit.
Dust collectors
Aluminum dust explosions at Hayes Lemmerz in Indiana most likely began in the dust collection system.
What it means for your claim: The collector and ducts are evidence and part of the scope.
Unattended machines and oil
An Ohio machine shop fire started at a CNC grinder running overnight in an oil pit.
What it means for your claim: Lights-out operation, coolant and oil mist will come up in the cause review.
Hot work
Welding and cutting sparks are a listed ignition source, and OSHA requires a fire watch for at least 30 minutes after hot work where one is required.
What it means for your claim: Hot-work permits and fire-watch logs are among the first records requested.
Damage to document
Blast pressure reaches buildings, crane runways, roof decks and neighbors. Heat distorts machine castings, ways, spindles and furnace shells. Soot and corrosive residue settle on machined surfaces, finished parts and CNC electronics well outside the burn, which is why we bring in industrial hygienists to document how far it traveled. On reactive metals such as titanium and zirconium, water can make things worse, so record what was sprayed where and why.
Sources: NFPA via NIST FireDOC; Processing Magazine 2022 Combustible Dust Incident Report; OSHA (2023); Plant Services (2024); Post and Courier (2021); CSB Hayes Lemmerz; 29 CFR 1910.252.
Molten material, equipment breakdown and fire: where the policy draws lines
The lines a policy draws between fire, molten material, equipment breakdown and tooling can move tens of millions of dollars. After JW Aluminum's 2020 cast house fire, its insurers pointed to a $10 million cap for damage from the heat of molten material. The company argued it was a covered fire under a $250 million limit.
| Piece of the loss | Where it is usually covered | What to check |
|---|---|---|
| Building and structure | Property form | Valuation, coinsurance or agreed value, and whether values were current |
| Machines, presses, furnaces, cranes | Property form, valued per its valuation clause | Replacement cost or actual cash value; invoices, rebuilds, retrofits |
| A furnace or machine that failed on its own | Equipment breakdown policy | Waiting periods, and where the breakdown ends and the resulting fire begins |
| Damage from molten metal escaping | May carry a separate sublimit or exclusion | The exact wording, and how the first cause statement describes the event |
| Patterns, dies, molds and tooling | Tooling schedule, valuable papers, or property of others | Who owns each item, where it sat, and the cost to recreate it |
| Customers' metal in your shop | Property of others or bailee coverage | That limit against the value of customer metal on site |
| Raw material, WIP and finished goods | Property form, at cost or selling price | The valuation clause; mill test reports and heat numbers |
| Code upgrades on the rebuild | Ordinance or law coverage, to its limit | The limit, and any fire authority orders |
| Lost production and extra expense | Business income and extra expense | Period of restoration, extended period, and waiting period |
| Damage to neighbors | Liability policies | A matter for your liability insurer and attorney, not your property claim |
How a policy applies to your facts is a legal question when it is disputed. We document the loss and present it; coverage interpretation in a dispute belongs with your attorney.
Source: Post and Courier, June 2021.
Valuing equipment you cannot buy off the shelf
Machines and furnaces
An old machine that holds tolerances a new catalog machine cannot match without setup is not worth its book value, and book value is not what the policy promises to pay. One Ohio shop owner put it plainly after his fire: a $100,000 machine depreciated over five years would be worth very little. Get the adjuster's valuation method in writing, then answer it with invoices, rebuild and retrofit records, and quotes for the closest machine available today.
Patterns, dies, molds and tooling
Tooling is where ownership disputes start. Build a register showing each pattern, core box, die and fixture, who owns it, where it sat and what it costs to recreate. Customer-owned tooling may fall under property of others or under the customer's own policy.
Customer metal and finished parts
In toll processing, repair and coating shops, much of the steel in the building belongs to customers. For your own finished parts, selling price can exceed cost by the full margin, so read the valuation clause before the insurer's accountant prices stock. Smoke-exposed stock needs a decision by heat number: clean, re-certify or scrap. Scrap has real value, so agree on the salvage credit in writing.
Business income in tons and machine hours
A metal plant's income loss should be measured in its own units: tons poured or shipped, machine and furnace hours, yield, scrap and backlog. Plants with a backlog will hear that orders were only delayed. The answer is the record: cancelled purchase orders, customer resourcing letters, late-delivery penalties and capacity limits that block catch-up.
Recovery takes longer than the repair. The Ohio machine shop had one machine running within a week, but settling back in took at least two and a half to three months, and output was still below normal after that. Customers who move work elsewhere may take months to return, which is what extended period of indemnity coverage is for.
How we build it
We do not hand the carrier one calculation. We model the loss several independent ways, against equipment and tooling lead times, against your backlog and contract commitments, and against the ramp to restart, and use those models against each other. The look-back period matters too: a soft year inside a multi-year average can drag your baseline down when it does not reflect normal operations.
Extra expense to document
- Castings, machining, heat treating or coating sent to other shops, including tooling transfer.
- Rented generators, temporary power, temporary furnaces or crucibles.
- Expedited and air freight.
- Third-party inspection and testing to requalify parts for customers.
- Temporary laydown yards, site security and overtime.
What sets the restoration period
- Replacement machines and furnaces (U.S. metalworking machinery orders ran 31.9% ahead of 2025 through May 2026, per AMT data, and lead times were stretching).
- Air authorization for replacement equipment.
- Code-driven work, which falls outside the standard restoration period unless an increased-period endorsement was bought.
- Customer requalification for oil and gas and other certified work.
- Specialists such as refractory installers and crane inspectors.
of civilian deaths in U.S. industrial and manufacturing fires came from flammable liquid and gas fires, which were about 10% of fires.
NFPA, 2003 to 2006, via NIST FireDOC
in direct property damage a year from about 7,770 U.S. industrial and manufacturing structure fires.
NFPA, 2011 to 2015 average
rise in construction input prices in the year to September 2026, with tariffed metals still climbing.
Associated Builders and Contractors
Sources: Today's Machining World (2006); TWBS citing AMT (2026); ABC via Woodworking Network (2026).
The shortfalls in these claims are predictable. So is how we fight them.
Large losses in this sector are contested on a handful of recurring fronts. None of these mean the carrier is acting in bad faith, it means the policy is complex and the default reading of it favors the insurer unless someone pushes back with documentation. Here is what they try, and what we do about each.
The insurer may point to wear, corrosion or mechanical breakdown rather than a covered fire or explosion.
Our move: We assemble the maintenance and inspection records and work from the origin investigator's findings, so the cause analysis rests on the evidence, not the first assumption.
A molten-material sublimit may be raised against a fire loss.
Our move: We document the fire's path and witness accounts from the start. Where the wording itself is in dispute, we work alongside your attorney.
Old machines get priced at actual cash value.
Our move: We document replacement cost with invoices, rebuild records and quotes for equivalent machines, including lead times.
Tooling and metal get written off as the customer's problem.
Our move: We build the tooling and material register by owner and location and match it to the right coverage.
Soot on precision parts and electronics is treated as cleanable.
Our move: Industrial hygienist testing and customer rejection letters establish what can be saved and what cannot.
The timeline is set shorter than real lead times.
Our move: Dated vendor quotes, permit steps and requalification timelines set the real period.
Added gas detection or dust protection is called betterment.
Our move: We tie fire authority requirements to the ordinance-or-law coverage you bought.
Texas rules that gate your restart
TCEQ air authorization
Many foundry, melting, heat treating, welding, blasting and coating operations run under TCEQ permits by rule. Replacing a permitted facility under 30 TAC 106.264 requires notice within 10 days after installation, filed through TCEQ's STEERS system, and TCEQ generally allows equipment to be ordered before a permit is in hand. Pull your existing registrations early so the rebuild does not wait on paperwork.
Houston's hazardous materials ordinance
After Watson, Houston passed Ordinance 2020-1092, which added permits for outdoor hazardous materials storage, a 1,000-foot buffer from schools, churches, parks, hospitals and day cares, and committee review of storage changes. A plant rebuilding gas storage inside city limits should ask early whether it applies.
NFPA 660 and combustible metal dust
NFPA 660 replaced NFPA 484 for combustible metals in December 2024; metals are Chapter 22. It requires a dust hazard analysis that covers explosion, flash fire, fire and molten metal hazards, and it limits water-based fire protection. The fire authority may apply new requirements to existing plants, which can turn a rebuild into an upgrade. That is where ordinance-or-law coverage comes in.
Storms
In Texas, storm damage at a metal plant often becomes an equipment problem: a freeze threatens furnace cooling water and sprinkler piping, an outage can freeze a melt in an induction furnace, wind and hail open high-bay roofs over cranes, and floods reach pits, quench tanks and electrical rooms.
Related tools: Ordinance or law calculator, Business income worksheet, Coinsurance penalty calculator, Texas prompt payment deadline calculator.
Sources: TCEQ 30 TAC 106.264 and "Before You Build"; CSB Watson report and ABC13 on Ordinance 2020-1092; Processing Magazine and Powder & Bulk Solids on NFPA 660.
Pipe and pipe-fitting plants: what is different
Pipe and fitting plants share a fab shop's hazards and add their own: coating and lining lines, heavy presses, threading, and plastics extrusion. Houston, Longview and Beaumont-Port Arthur are named by the Texas Comptroller among the state's fabricated metal manufacturing centers.
| Type of plant | Industry code | Hazards to plan for |
|---|---|---|
| Steel pipe and tube from purchased steel | NAICS 331210 | Welding, heat treating, coating and lining lines |
| Fabricated pipe and fittings | NAICS 332996 | Cutting, welding, forming, heavy presses |
| Iron foundries | NAICS 331511 | Molten metal, induction furnaces, sand and resin dust |
| Plastic pipe and fittings | NAICS 326122 | Molten plastic under pressure |
Two Harris County events show the range. In December 2015, a clogged machine at a plastic pipe plant in Humble released 550-degree plastic, injuring four workers, two critically. In December 1996, an explosion near a 30,000-ton pipe press at Wyman Gordon Forging killed at least eight people. For pipe makers serving oil and gas, customer requalification and certified material traceability can gate the restart as much as the equipment does, so mill test reports and heat numbers belong in the first-week document pull.
Sources: U.S. Census Bureau NAICS list; Texas Comptroller (2016); CBS News Texas (2015); Seattle Times archive (1996).
Documents to pull this week
Pull these before cleanup and before the first records request.
Policy and notice
- Full policy set (property, equipment breakdown, tooling or inland marine, property of others, liability and umbrella, pollution)
- Notice log with claim numbers
- Fire department incident number
- Every agency contact
Gas systems
- Piping diagrams and shutdown procedures
- End-of-day valve logs
- Gas detection calibration, test and repair records, including contractor concerns
- Ventilation interlock tests
- Gas supply contracts and service tickets
Dust and hot work
- Dust hazard analysis and its revalidation date
- Housekeeping and collector service records
- Hot-work permits and fire-watch logs
- Sprinkler and alarm inspection and impairment records
Furnaces and melt
- Furnace operating logs and relining records
- Cooling-water logs, alarms and coil inspections
- Ladle and crucible inspections
- Lockout/tagout procedures
Machinery, tooling and stock
- Asset register with make, model, serial, year, invoices and rebuilds
- Tooling register by owner and location
- Raw material with mill test reports and heat numbers
- WIP by job
- Customer-owned material and processing agreements
- CNC programs and process recipes with backups
Income and customers
- 36 months of tons, hours, revenue and margin by customer and product
- Open orders and backlog
- Supply agreements with penalty terms
- Customer qualification documents
- Payroll registers and every post-loss invoice
Permits
- TCEQ permit-by-rule registrations and records
- Any other air permits
- Houston hazardous materials permits if inside city limits
The insurance company's adjuster works for the insurance company.
After a major loss, the carrier sends its own adjuster, and often a forensic accountant and engineering consultants, all retained by the insurer. They are competent and they are not neutral; their job is to resolve the claim on terms favorable to the company that pays them. A public adjuster is the licensed counterweight: we represent the policyholder only, we build and present the claim, and we negotiate the settlement.
On a metal plant loss the asymmetry is the whole problem. The carrier brings cause-and-origin investigators, engineers, metallurgists, machinery appraisers and forensic accountants. We document the full loss with the same rigor, and we are paid a percentage of what we recover, so our incentive is your number. We are licensed public adjusters, not attorneys: when a question turns on how the law or the policy language applies in a dispute, or involves investigators, neighbors or vendors, we work alongside your attorney rather than in place of one.
What happens after you call.
Loss review and policy analysis
We read the actual policy - limits, coinsurance, equipment and tooling valuation, ordinance-or-law, exclusions - and assess the full scope before anyone commits to a number.
Document everything, including the latent corrosion
Structure, heavy equipment, dies and tooling, inventory, and corrosion outside the burn area. We bring in industrial hygienists to document the true corrosion footprint, while the evidence still exists.
Build the business-interruption claim, modeled several ways
From real production and financial records: equipment and tooling lead times, order backlog, the restart ramp, and the right look-back baseline, modeled independently and used against each other to substantiate the full loss.
Present, negotiate, and settle
We present the documented claim, contest the predictable shortfalls, and negotiate the settlement on your behalf through to resolution.
Questions metal plant owners ask
Who investigates a plant explosion in Houston?
Local fire officials lead, and large events can bring ATF, OSHA and the U.S. Chemical Safety Board. At Watson Grinding in 2020, ATF spent more than 1,400 hours on site, OSHA issued citations, and the CSB published its final report in 2023. How you respond to investigators is a question for your attorney.
Can we clean up before the investigation ends?
Coordinate with investigators and the insurer first. Keep hoses, valves, detection parts and equipment at the origin, and log everything removed. Evidence lost in cleanup can decide both cause and coverage.
Is a metal dust fire or explosion covered?
The policy wording decides. Expect questions about cause, such as housekeeping, corrosion or mechanical breakdown, and about how far the scope reaches, because overhead dust can carry fire through the whole building.
What if the insurer says molten metal, not fire, caused the damage?
Some policies carry a separate sublimit for damage from molten material. In one 2020 aluminum plant loss, insurers cited a $10 million cap while the company cited a $250 million limit. Document the fire's path from the start; a dispute over the wording belongs with your attorney.
Is the furnace failure itself covered?
It depends on your policies. Equipment breakdown coverage is sold for mechanical and electrical failure, and fire damage sits under the property form. When two insurers are involved, get each one's share in writing early.
What is NFPA 660 Chapter 22?
It is the combustible metals chapter of NFPA 660, which replaced NFPA 484 in December 2024. It requires a dust hazard analysis that includes molten metal hazards and limits water-based fire protection, and the fire authority may apply it to existing plants.
How are old or discontinued machines and furnaces valued?
By the policy's valuation clause. Gather invoices, rebuild and retrofit records and quotes for equivalent machines. Depreciated book value is not replacement cost.
Are patterns, dies and customer tooling covered?
It depends on who owns them and on your forms: a tooling schedule, valuable papers coverage or property of others. A register by owner and location settles most of the argument.
Our shop is full of customers' steel. Is it covered?
Possibly, under property-of-others or bailee coverage up to its limit, and the customer's own policy may also respond. Check the limit against the value of customer metal that was on site.
Will insurance pay to outsource work while we rebuild?
Extra expense coverage pays added costs to keep operating, such as sending castings, machining or coating to other shops. Get approvals in writing and keep every invoice.
Do we need TCEQ approval to replace a furnace or blast booth?
A replacement under 30 TAC 106.264 requires notice within 10 days after installation, and TCEQ generally allows equipment to be ordered before a permit. Check your existing registrations early.
A neighbor's explosion shut us down. What now?
Start with your own property, business income and civil authority coverage rather than waiting on the neighbor's insurer. A business owner near Watson said the blast destroyed his business for more than a year. A claim against the neighbor is a question for your attorney.
What does it cost to hire a public adjuster?
We work on a percentage of the recovery, with no upfront cost. We are only paid if and when you recover, which aligns our incentive with maximizing your settlement. Fee specifics are discussed up front before you commit to anything.
Tell us what happened. We will tell you straight whether you have a fight worth having.
No cost, no obligation. The fastest path is the phone - for a major loss, call and talk to a person today. A licensed Texas public insurance adjuster will review the loss with you.
713-369-4300Start a claim review
Tell us what happened. A licensed Texas public adjuster will review the loss with you, and tell you straight whether you have a fight worth having. The review is free.
For fire claims, we call you back within 1 hour and visit your property within 24 hours or less.
A major loss is decided in the first moves. Make yours count.
Talk to a public adjuster who works only for you. No upfront cost - we are paid a percentage only if you recover.
713-369-4300Crossroads Insurance Recovery Advocates · TDI License 1924788
This page is general educational information about commercial property claims, not legal advice or advice on your specific claim. Crossroads Insurance Recovery Advocates, Texas public adjuster entity license #1924788.
Don't take our word for it
- U.S. Chemical Safety Board: Watson Grinding and Manufacturing final investigation report (2023)
- ABC13 Houston: Watson Grinding files for bankruptcy (2020)
- ABC13 Houston: cause of the Watson explosion and the ATF investigation (2020)
- ABC13 Houston: hazardous materials ordinance after Watson
- ABC13 Houston: $61.5 million Watson verdict (Aug. 2026)
- Texas Lawbook: 3M cleared in Houston explosion trial (May 2026)
- ABC13 Houston: business owner near the Watson blast (2023)
- NFPA via NIST FireDOC: industrial and manufacturing fires, 2003 to 2006
- NFPA via Powder & Bulk Solids: manufacturing property fires, 2011 to 2015
- Processing Magazine: 2022 combustible dust incident report
- Post and Courier: JW Aluminum insurance fight (2021)
- OSHA: Ohio foundry steam explosion citations (2023)
- Plant Services: Delta Centrifugal explosion, Temple, Texas (2024)
- CSB: Hayes Lemmerz dust explosions and fire
- Today's Machining World: Gone by Morning (2006)
- 29 CFR 1910.252, welding and cutting fire prevention
- Processing Magazine: NFPA 660 overview
- TCEQ: 30 TAC 106.264, replacement facilities
- TCEQ: Before You Build
- TWBS citing AMT: machinery orders 2026
- Woodworking Network citing ABC: construction input prices, Sept. 2026
- Texas Comptroller: fabricated metal manufacturing (2016)
- U.S. Census Bureau: NAICS code list
- CBS News Texas: Humble plastic pipe plant explosion (2015)
- Seattle Times archive: Wyman Gordon Forging explosion (1996)