Riskiest Trades to Insure in the U.S. for General Liability

Article Reviewed by a licensed insurance professional: Sam Meenasian (CA dept of insurance license #0F75955).

A practical U.S. market report from USA Business Insurance Services on the trades, sectors, claim patterns, and state conditions that make general liability harder to place, more expensive to structure, and more likely to draw sharper underwriting questions.

5 key takeaways

The hardest GL accounts are usually the ones where ordinary work can damage someone else’s finished space, stock, or customer area.

1. Roofing, welding, fire sprinkler work, plumbing, electrical, and appliance or HVAC installation stay high on the list because losses often widen after the crew has left.
2. Manufacturing and retail may look calmer than construction, but product liability and customer injury change the severity story fast.
3. On the latest NAIC broad liability proxy, Nevada, Arkansas, Hawaii, New Hampshire, and Georgia remain the clearest state outliers.
4. The buying gap is still real. Carrier-backed indicators point to both uninsured activity and underinsurance, especially among smaller or evolving businesses.
5. From our seat in the U.S. small commercial market, the riskiest trades to insure for general liability are not simply the jobs that look dangerous.

They are the jobs where a routine mistake can spread into someone else’s property damage, someone else’s injury, or a completed operations allegation that shows up after the job looked finished. That distinction matters.

A roofer may be a hard worker’s comp class because of falls. A welder may be a hard worker’s comp class because of burns. But those are employee-hazard conversations. On the GL side, the harder question is what happens to the building, the tenant, the customer, the neighbor, the product user, or the lawsuit once the work leaves the crew’s hands. That is why this report is more useful for owners than a generic “most dangerous jobs” list.

It is built around the way U.S. insurance people actually think about general liability. We care about completed work. We care about occupied premises. We care about water, fire, public traffic, products, and legal costs. We care about how quickly a small operational mistake turns into a bigger third-party file. That same pattern shows up across the classes we insure and explain every day at USA Business Insurance and in our broader educational library at the Business Insurance USA blog.

We see it with welders, electricians, fire sprinkler installers, plumbing contractors, retailers with heavy foot traffic, and manufacturers whose products can damage other property long after the shipment has gone out.

How USA Business Insurance defines GL pressure

Over a 10-year review, one thing keeps repeating itself. Hard GL accounts usually share the same few triggers.

1 The first trigger is completed operations.

The loss does not happen while the crew is standing there. It happens later. A roof leaks after the first hard rain. A line fitting loosens after the unit is running. A sprinkler head is damaged during work, and the discharge happens later. A product fails after installation. That delay is one reason owners often underrate the exposure.

2 The second trigger is work inside someone else’s finished property.

Once a trade is working in an occupied home, retail suite, restaurant, office, hotel, or medical space, a small mistake rarely stays contained. Water migrates. Smoke spreads. Floors get replaced. Drywall gets cut. Inventory is damaged. A tenant blames a landlord. A landlord blames a contractor. That is classic GL pressure.

3 The third trigger is heat, ignition, and fire potential.

Travelers’ hot-work guidance is blunt for a reason. Combustibles within 35 feet need to be removed or protected, and a fire watch should continue during work and for at least 60 minutes after completion. That is not window dressing. It reflects how easily welding, cutting, grinding, soldering, and torch-applied roofing can grow into larger property claims when the work area is not tightly controlled.

4 The fourth trigger is water release.

Travelers says water damage has become the most common cause of loss on building construction projects. In real GL terms, that matters because plumbing, sprinkler, HVAC, and appliance installation trades introduce water into finished environments where even a modest leak can widen into flooring, drywall, millwork, electronics, or neighboring-unit damage.

5 The fifth trigger is public foot traffic.

Retail and service businesses often look calmer than contractor classes. Then a slip, trip, falling display, damaged customer property item, or product allegation brings the GL exposure back into full view. A single slip-and-fall or property-damage claim can become expensive quickly when medical inflation and larger verdicts are part of the backdrop.

6 The sixth trigger is products and product pull-through.

Travelers’ product-liability materials show why manufacturing and retail deserve more GL respect than owners sometimes give them. Product claims can involve design defects, manufacturing defects, or warning-and-instruction defects. They can also bring manufacturers, distributors, importers, and retailers into the same dispute, whether or not the final fault is clear at the start.

7 The seventh trigger is the liability environment itself.

The work may be the same as it was a few years ago, but the claim environment is not. The Hartford says slip, fall, and customer-injury claims have become more expensive in part because of higher settlements and costlier verdicts. Travelers’ 2026 liability environment program also points to the broader legal climate, including more than $2.5 billion in legal advertising during 2024.

Put those triggers together, and the pattern becomes clearer. The riskiest GL trades are usually the ones where normal daily work can create a third-party loss that spreads outward into finished-property damage, customer injury, products-completed operations allegations, legal cost, and multi-party blame.

The trades that stay hardest to insure for GL

✅ Roofing: the loss often shows up below the roof line

From a U.S. insurance perspective, roofing still belongs near the top of the GL list.

That does not mean every roofing business is uninsurable. It means roofers combine several of the hardest GL ingredients in one class: completed operations, weather exposure, torch work in some jobs, work on someone else’s building, and expensive property damage below the actual work area.

The owner may think the claim is about shingles, flashing, underlayment, or membrane work. The underwriter is thinking about drywall, insulation, ceilings, electronics, tenant improvements, inventory, loss of use, and who gets blamed when water reaches occupied space. That is why roofing losses are so often misunderstood by owners. The expensive part is frequently not the roof itself. It is everything underneath the roof.

Travelers’ construction fire and hot-work resources are useful here because they treat torch work, roof work, and smoldering ignition as real construction-fire concerns. Even when the actual repair job is small, the surrounding property values are not always small. In practical GL terms, roofing becomes especially tough when the contractor works on occupied commercial property, multi-tenant buildings, medical offices, restaurants, schools, or any site where finished interiors and other people’s property are directly below the work. That is where an ordinary job can become an expensive third-party file in a hurry.

✅ Welding and hot work: small sparks, oversized claims

🔥 Welders are difficult on the GL side for a simple reason.

The work creates heat, ignition potential, smoke, and fire spread in environments that are not always clean, empty, or easy to isolate. Travelers’ hot-work safety guidance makes the class structure obvious. The carrier stresses combustibles within 35 feet, the need to protect adjacent areas, and continuous fire watch during work and for at least 60 minutes after completion. That is not a technicality.

It is a direct acknowledgment that the real problem with hot work is not always the flame in front of the crew. It is the hidden ignition, the smoldering material, the fire below or behind the work area, or the damage that shows up after everyone thought the job was closed out. Many construction fires are caused by improper use of torches for cutting, soldering, roof work, blazing, and welding. That fits exactly with what GL underwriters worry about.

Welders may think of themselves as metal workers. Carriers see a class that can ignite finished property, spread smoke through occupied space, and trigger multi-party claims involving owners, tenants, general contractors, and neighboring businesses. In other words, the danger is not theoretical. It is built into the operating mechanics of the class.

✅ Fire sprinkler installation: a safety trade with real water-damage severity

Fire sprinkler contractors often surprise business owners on the GL side. The trade sounds safety-oriented, code-driven, and controlled. In many ways, it is. But from an insurance perspective, it is also the kind of work where a small error can affect a lot of finished property. A head can be damaged. A valve can be mishandled. A fitting can fail after a close-up. A discharge can happen during testing. A hidden leak can damage a tenant’s suite before anyone realizes there is a problem.

Travelers’ fire protection impairment guidance is helpful because it describes non-functioning or impaired fire protection systems as exposing property to potentially catastrophic damage in the event of fire. That tells you how seriously carriers view work involving sprinkler valves, alarms, water supply piping, and related systems. The day-to-day GL claim for this class is not always a dramatic fire-loss story.

More often, it is a water-damage story. That is exactly why this trade sits above what many owners expect on a GL pressure scale. When the work is happening in offices, apartment buildings, hotels, retail centers, warehouses with racking, or any finished occupied property, the cost of a modest water release can widen fast. That is why underwriters ask questions about testing, documentation, turnover process, and occupied-building controls.

✅ Appliance, HVAC, plumbing, and electrical installation: ordinary work inside an expensive space

This is one of the most important clusters in the whole article. Installation classes often feel “normal” to the owner because the jobs are small, familiar, and repetitive. But in the U.S. GL market, ordinary installation work inside finished property is exactly where a lot of claim severity comes from.

Think about what these trades do. Appliance installers move equipment through kitchens, laundry rooms, finished retail space, and occupied homes. HVAC installers penetrate walls, ceilings, roofs, and condensate systems. Plumbers introduce or redirect water. Electricians connect panels, fixtures, receptacles, and equipment where a fire or property damage allegation can carry far more weight than the original invoice.

Water damage has become the most common cause of loss on building construction projects. That aligns with what small-business underwriters already know from day-to-day submissions: water losses in finished space are expensive, messy, and hard to keep narrow.

The Hartford’s current claims analysis makes that even more concrete. Water and freezing damage represented a large share of claims in its 2020-2024 small-business review, with an average cost of about $34,600.

That number matters because it helps explain why plumbing and fire protection work can feel harder than owners expect. The market does not need a catastrophic failure every time. It only needs a steady pattern of mid-sized water losses that widen into flooring, cabinetry, drywall, and neighboring-unit damage.

Electrical and appliance-related work carries a different flavor of GL pressure.

Those classes live closer to the fire and property-damage side of the liability discussion. The claim may involve a connection issue, damaged finish materials, a later allegation that the hookup was improper, or an assertion that the installer’s work contributed to a larger event. The owner’s misunderstanding is usually the same across all of these classes: “We only do small installs.” From a GL standpoint, small installs inside finished, occupied space can still create large third-party claims.

✅ General contractors: Sometimes, the hardest part is coordination

General contractors are a good reminder that GL pressure is not always about the hammer in your hand. Sometimes it is about the job you are coordinating, the subs you are hiring, the site you are controlling, and the turnover process you are managing. General contractors can be brought into claims they did not physically cause. The issue may be housekeeping, staging, access control, incomplete protection of finished areas, temporary conditions, poor oversight, or a bad transfer-of-risk setup with subs. From a U.S. insurance perspective, this is where owners often over-trust certificates.

A certificate can show that insurance was in effect on a certain date. It does not fix weak subcontract language. It does not guarantee the right additional-insured wording. It does not solve scope drift in the field. It does not automatically clean up a completed operations dispute after the project is turned over. That is why general contractors can remain difficult GL accounts even when they appear organized on paper.

The hardest claims are not always caused by the GC’s own labor. They are often caused by the GC’s position in the chain of responsibility.

✅ Manufacturing: where product liability changes the conversation

Manufacturing is where a lot of owners misread general liability. The shop may look clean. The premises may look controlled. The daily operations may seem calmer than a construction site. But product liability changes the entire GL discussion. Product claims can arise from alleged design defects, manufacturing defects, or warning-and-instruction defects. They can involve products that damage other property, products that injure a user, or products that create downstream claims long after the item leaves the building. Product claims can be disruptive and expensive, whether or not the manufacturer is ultimately at fault. That is a critical insurance point.

💡 A manufacturer does not need to lose the case for the claim to become expensive.

There are still defense costs. There is still an investigation. There is still brand damage, business disruption, vendor review, document review, and pressure from distributors or retailers that want the issue pushed downstream. Product liability claims can be made long after the products were manufactured, and post-sale responsibilities can be questioned, including updated warnings or instructions if a later hazard becomes apparent. That is exactly the kind of long-tail pressure that makes some manufacturing classes deceptively hard for GL.

Appliance components, electrical products, metal parts used inside other equipment, consumer goods, furniture, consumables, and import-driven product lines all deserve more GL respect than many smaller operators give them.

Chubb’s 2025 Liability Limit Benchmark & Large Loss Profile by Industry Sector is also useful here. The report exists because escalating losses, higher limits, and large-loss patterns are not confined to one corner of the market. Construction, consumer products, manufacturing, hospitality, and real estate all show why liability discussions are increasingly about severity, not just frequency. In practical terms, the riskiest manufacturing accounts for GL tend to share a few traits.

The products are used by the public. The products are installed in homes or businesses. The products can start a fire, move water, injure a user, or damage other property when they fail. Or the warning and instruction side of the file is weak enough that a plaintiff can argue the defect was not just the product itself, but the way the product was presented.

The common owner mistake is thinking, “We are not a big national brand, so product liability is not really our problem.” That is rarely how claims work. Smaller manufacturers can actually feel the pressure earlier because documentation, vendor controls, engineering review, and recall planning are often less mature than they are in larger organizations.

✅ Retail: lower drama, very real GL pressure

Retail accounts are often easier to quote than roofing or welding. That does not make them light GL accounts. The Hartford’s latest small-business claims release still places slip, fall, and customer injury among the most common claim types and pegs average severity at about $45,000. Liberty Mutual also emphasizes how quickly a single slip-and-fall or property-damage claim can become expensive when medical inflation and larger verdicts are part of the legal backdrop.

From a USA insurance perspective, retail becomes harder when two exposures live in the same operation at once. The first is public foot traffic. The second is product pull-through. Furniture stores, appliance stores, grocery and convenience operations, specialty food retailers, home-goods stores, and hardware or showroom-style businesses all fit this pattern in different ways.

Customers are on the premises. Merchandise may be heavy or unstable. Floors get wet. Seasonal displays create trip points. Parking-lot transitions can create injury allegations. And depending on what is sold, the store may also be pulled into a product case that started upstream. That combination is what lifts some retail subclasses higher than owners expect on the GL scale. The owner often focuses on the obvious slip-and-fall issue. The underwriter is also thinking about the product, the merchandising environment, the customer flow pattern, and the overall liability climate if the claim turns into litigation. This is why indoor work should never be confused with low-severity work.

Public-facing service businesses: not the hardest, still not casual

Service businesses are not usually the toughest GL classes in the national market. But the public-facing ones still deserve respect. Any business that brings customers into the premises, handles customer belongings, or creates a steady stream of slip, trip, and minor-impact opportunities can generate meaningful GL claims even when the work itself looks clean. From a practical U.S. insurance standpoint, these classes are usually easier than roofers, welders, sprinkler contractors, or product-driven manufacturers.

Still, they can move up the underwriting ladder when the location is busy, the housekeeping is loose, or the business model creates regular customer injury allegations. That is where service risk stops being “simple” and starts behaving more like retail.

Why do these trades feel tougher now than they did a few years ago

Some of the answers are trade-specific. There is more finished property value in play. Tenant buildouts are more expensive. Material replacement is more expensive. Labor is more expensive. Damage restoration is more expensive. Small leaks and small fires simply cost more to clean up than they did a few years ago.

But another part of the answer is the liability environment itself. The Hartford says slip, fall, and customer-injury claims became more expensive from 2015 to 2025, due in part to higher settlements and costlier verdicts. The Hartford’s separate 2025 legal-system-abuse article also points to more litigation funding, more legal advertising, and broader tort costs that flow through the system.

Travelers makes a similar point from a different angle. Its 2026 liability environment program references more than $2.5 billion in legal advertising in 2024 alone.

Liberty Mutual describes the same broad trend in plainer insurance language: escalating verdicts and medical inflation make even a single slip-and-fall or property-damage claim more expensive than many businesses assume. That matters because the same trade can feel harder to place even when the work has not changed. If the cost to resolve the claim is higher, the class gets tougher. If juries, settlements, medical pricing, and legal spend all move the wrong way, the underwriting pressure goes up even when the business thinks it is doing the same work it did three years ago.

⭕ The riskiest states right now

There is no perfect public government table that ranks roofing GL severity in every state or appliance-installation claims by jurisdiction. The most useful broad benchmark is still the NAIC state market report for line 17.1/17.2 Other Liability.

It is broader than standalone general liability, so it should not be treated like a pure CGL scoreboard. But from a practical market view, it is still the cleanest regularly published state-level liability proxy available across all 50 states. Using that benchmark, the hottest 2024 outliers remain Nevada, Arkansas, Hawaii, New Hampshire, and Georgia. Washington, South Carolina, and Connecticut also ran notably hot. Texas matters even more in practice because it combines elevated loss pressure with a very large liability market.

This is where state risk gets misunderstood. Owners often think state difficulty is only about the litigation culture. Litigation matters, but it is not the whole story. Repair cost, labor cost, property values, tenant-improvement values, density, and the local mix of contractors, retail, hospitality, and property-driven businesses all shape how liability performs in a state. A state with expensive finished property and a heavy contractor mix can feel hard even without a headline verdict. A state with dense public-facing business and rising claim severity can also run hotter than the national average.

From a placement perspective, state pressure usually shows up in subtle ways before owners ever see a formal declination. The application gets more detailed. The underwriter pushes harder on operations. Completed operations questions get sharper. Occupied work becomes more important. Deductible or attachment expectations move. Requested documentation expands. That is what “harder state” often means in real life.

What average GL claim amounts look like

Here is the honest answer first.

There is no clean public national database that gives small-business owners an average GL claim amount by trade and by state in a way that is truly reliable for buying decisions. That is why so much online writing on this topic feels fuzzy. The better approach is to use carrier-backed claim-type averages and then match those loss types to the trades that produce them.

The Hartford’s 2025 claims analysis is one of the clearest current public resources for that. It is based on 2020-2024 claims data from more than 1 million small-business property and liability policies. Its numbers line up closely with the risk pattern this article is describing.

Fire is the costliest common claim type at about $80,000 on average. Slip, fall, and customer injury comes in at about $45,000. Water and freezing damage averages about $35,000. Product liability also averages about $35,000. Those are not trade-specific averages.

They are claim-type averages. That is actually better for a GL article like this, because trades are difficult precisely when they create more of these claim types or make them wider when they occur. Roofers, hot-work trades, some electrical jobs, and product-driven manufacturers should care about fire. Retailers and public-facing service firms should care about slip, fall, and customer injury. Plumbing, sprinkler, appliance, and HVAC businesses should care about water. Manufacturers and retailers should care about product liability. One more practical point from an underwriting standpoint: averages do not tell the entire story.

Chubb’s benchmark report exists because large losses and rising loss trends matter too. Underwriters do not price or classify classes from the average file alone. They also worry about the outlier that blows through what looked like an ordinary account.

Insured, uninsured, and underinsured: what carrier-backed indicators actually show

This is the part of the discussion where many articles overstate what the public data can do. There is not a clean, current, carrier-backed, nationwide study that says exactly what percentage of established U.S. small businesses carry standalone general liability and exactly what percentage do not. So instead of pretending there is, it is better to show the protection gap honestly.

The Hartford’s side-business survey still provides one useful warning sign. Only 12% of surveyed side-business owners said they had purchased insurance for that business. In other words, most of that segment was operating uninsured. Just as important, 44% said they did not think they needed business insurance, 18% thought the business was too small, and 11% assumed a home or auto policy protected them.

That does not describe every established business. But from our perspective, it tells you where uninsured activity starts: with owners who think part-time, small-scale, or home-based work does not create real liability.

Travelers adds the second half of the picture. The carrier estimates that 22% of small businesses are underinsured. That means the gap is not only between insured and uninsured. It is also between insured and adequately insured. On the GL side, that distinction matters a lot.

💡 We routinely see businesses that bought some form of insurance years ago, then drifted into larger commercial jobs, added subcontractors, expanded product lines, moved into more finished occupied environments, or simply let older limits and structures ride forward without reassessing what the business now looks like. That is underinsurance in practice. It is not always about buying nothing. Often, it is about buying something once and never checking whether it still fits.

💡 If you want the GL-only reading of that data, it is this:

Many uninsured or underinsured situations start when owners assume one of four things. The work is too small to matter. The job is part-time, so it feels personal rather than commercial. Indoor work feels safer than it really is. Or a policy that was built for yesterday’s business is still fine for today’s business. In our experience, that is where a lot of avoidable GL trouble begins.

Where owners most often misread their GL exposure

💡 “We have never had a claim, so the exposure must be low.”

This is common in installation and product-driven businesses. Completed operations and product allegations can stay quiet for a long time. The account looks clean until the first significant water loss, fire allegation, or user injury.

💡 “The job is small, so the claim should be small.”

GL does not track job value in a straight line. A small plumbing repair can still damage several rooms. A small appliance hookup can still damage cabinets and flooring. A small welding job can still ignite a much larger property loss. A small retail incident can still produce a meaningful injury file.

💡 “Indoor work is low-risk work.”

Retail, manufacturing, and public-facing service accounts can be lower drama than a construction site. That is not the same as low GL pressure. Customers still walk the floors. Products still leave the building. Claims can still turn into product, premises, or customer-injury disputes.

💡 “The subcontractor’s certificate takes care of it.”

It helps. It is not magic. Certificates do not repair weak contracts, missing wording, or scope drift in the field. They document a point in time. They do not guarantee the transfer works the way owners assume it works after a completed-operations claim appears.

💡 “Our limits are fine because they were fine two years ago.”

That is another quiet problem. Finished spaces are more expensive. Damage restoration is more expensive. Medical costs are higher. Legal costs are more expensive. The old structure may not be obviously wrong, but it may be thinner than it used to be.

How a hard GL account gets easier to place

The best business owners do not try to argue that a hard class is easy. They show the underwriter why their version of the class is better controlled than average.

✅ For roofing, that means weather-call discipline, temporary dry-in procedures, job photos, close-out checks, and a clean way of documenting what was open and when.

✅ For welding and other hot work, that means real permit practice, real housekeeping, protected combustibles, trained fire watch, and a credible post-work inspection process.

✅ For sprinkler, plumbing, appliance, and HVAC work, that means pressure or flow testing where appropriate, shutoff planning, walkthrough photos, a water-response plan, and good turnover documentation.

✅ For electricians, it means a clear job scope, orderly work practices, documentation around connections and panels, and showing that the business is not being careless about work in finished occupied space.

✅ For manufacturers, it means traceability, complaint escalation, vendor controls, document retention, instructions that actually make sense, and a management habit of taking product concerns seriously before a claim forces the issue.

✅ For retailers, it means housekeeping, floor inspection routines, incident reporting, stronger merchandising discipline, and tighter thinking about which products belong in the store in the first place.

✅ For general contractors, the less glamorous work is often the most valuable: consistent subcontract terms, certificate tracking, project-specific review of transfer language, and honest recognition when the business has drifted into larger or more complicated work than its insurance structure was originally built for.

None of that guarantees a softer price or easier placement. What it does do is give the market a reason to separate your account from the rougher class average. In hard GL classes, that is often the most practical win available.

Method used

This report is intentionally conservative!

USA Business Insurance Services used a 10-year internal review of trade classes, policy structures, placement friction points, and claim-trigger patterns, then benchmarked that review against public materials from large insurance carriers and the NAIC.

State difficulty is based on the NAIC 2024 state market report for line 17.1/17.2 Other Liability. That line is broader than standalone CGL, so we treat it as a state-market proxy rather than a pure trade ranking.

Trade difficulty is based on the claim mechanics that repeatedly show up in carrier loss-control content, carrier claims studies, and sector liability benchmark materials. In other words, we ranked the trades by how they create third-party property damage, customer injury, products-completed operations allegations, and harder placement conditions in the U.S. GL market.

Average claim amounts in this article come from The Hartford’s 2025 analysis of 2020-2024 small-business property and liability claims. We use those figures by claim type because there is no reliable public national source that gives trade-by-trade GL average losses by state in a clean, comparable way.

The insured versus uninsured section is presented as a protection-gap discussion rather than a false census. The Hartford and Travelers both provide useful directional indicators, but they do not represent one pooled national GL-only study. We present them that way on purpose. That approach is more honest, and from an insurance advisor’s standpoint, more useful. It tells owners where the hardest GL accounts really cluster, what actually makes them hard, and why some trades feel much more difficult in the U.S. market than they appear at first glance.

At USA Business Insurance Services, Inc., we work with contractors, retailers, manufacturers, distributors, restaurants, and service businesses in all 50 states. We help businesses, from welders and fire sprinkler installers to plumbers, electricians, and handymen, make better GL decisions with practical guidance, credible market access, and an insurance structure that matches the work they actually do.

Sources

• NAIC 2024 Property/Casualty Market Share Report by State
• The Hartford 2025 small-business claims analysis
• The Hartford on legal system abuse and liability exposures
• Travelers hot-work safety guidance
• Travelers on fire, water, and theft at construction sites
• Travelers Institute on the changing liability environment
• Travelers product-liability claim guidance
• Travelers on small-business underinsurance
• Liberty Mutual general liability overview
• Chubb 2025 Liability Limit Benchmark & Large Loss Profile by Industry Sector
• The Hartford side-business insurance survey