Best Plumber Insurance 2026: 8 Carriers Compared
Shopping for plumbing business insurance is its own headache. Every carrier's website says it's the best fit for plumbers. Quote forms ask different questions. Premiums vary by 30-50% for the same business depending on who you ask. And the carriers that actually write plumbers well aren't always the ones you've heard of.
This is an independent comparison. We don't sell insurance and we're not affiliated with any of the carriers below. We track 553 commercial insurance carriers across 76 lines of business and we've put together the eight that consistently write plumbing contractors well in 2026. We'll show you what each one is good at, where they fall short, and what plumber insurance actually costs – using verified data from Insureon, not made-up numbers.
If you'd rather skip the comparison and have one licensed independent agent run quotes across all eight carriers for you, jump to the form. It's free and we'll send a personal intro within a business day.
What Plumbing Contractors Need
Before comparing carriers, it helps to ground the conversation in what a typical plumbing account actually requires. Most plumbing contractors need five core lines:
- General liability: The foundation of every plumbing account. Water damage is the primary exposure – a burst pipe in a finished basement, a faulty connection that floods a commercial kitchen. GL class codes for plumbers (NAICS 238220) are well established, and most carriers write them without heavy underwriting scrutiny.
- Workers compensation: Required in nearly every state once the plumber has employees. Plumbing WC rates vary by state but are moderate relative to other construction trades. The class code (5183 for plumbing) reflects the combination of physical labor, tool use, and exposure to confined spaces.
- Commercial auto: Plumbers run vans and trucks loaded with pipe, fittings, and equipment. Most need a commercial auto policy covering multiple vehicles, and many need hired and non-owned auto as well for employees using personal vehicles to reach job sites.
- Inland marine: Tools and equipment travel to every job. A plumber's tools – pipe threaders, camera inspection equipment, hydro-jetting machines – can easily represent $20,000 to $80,000 in value. A contractors equipment floater protects this gear on the road and at job sites where a BPP policy would not respond.
- Business owners policy (BOP): For plumbers who operate out of a shop or office, a BOP bundles general liability with commercial property coverage. This works well for smaller operations, though larger plumbing contractors typically need standalone GL and property policies for better limit flexibility.
Some accounts will also need umbrella or excess liability – particularly plumbers working as subcontractors on commercial projects where the GC requires $2M or $5M in total limits.
What Plumber Insurance Actually Costs in 2026
Before the comparison, the part most carrier pages won't tell you: what plumbers actually pay. These are national averages from Insureon's 2026 plumber insurance cost data – a useful baseline before you start quoting.
| Coverage | Average Monthly | Average Annual |
|---|---|---|
| General liability (GL) | $115 | $1,378 |
| Business owners policy (BOP) | $166 | $1,992 |
| Workers' compensation | $195 | $2,337 |
| Commercial auto | $225 | $2,704 |
| Professional liability (E&O) | $74 | $888 |
| Commercial umbrella | $250 | $3,000 |
Source: Insureon, 2026. Median monthly cost for full plumbing business insurance packages ranges from roughly $30 to $165 per month depending on crew size, services, and coverage limits (MoneyGeek).
Your actual number depends on five things: revenue, employee count, what kind of plumbing you do (residential service vs commercial new construction vs gas line work), your state, and your claims history.
Carrier Comparison Table
| Carrier | Lines Available | Appetite for Plumbers | Best For |
|---|---|---|---|
| Hartford | GL, WC, Auto, Inland Marine, BOP, Umbrella | Strong – core class | Established plumbers, 5+ employees, package accounts |
| Travelers | GL, WC, Auto, Inland Marine, BOP, Umbrella | Strong – core class | Mid-size commercial plumbing, multi-line packages |
| biBERK | GL, WC, Auto, BOP, Umbrella | Strong – target class | Solo plumbers and small shops, fast bind needed |
| NEXT Insurance | GL, WC, Auto, BOP | Strong – target class | Startups, 1-3 employees, digital-first customers |
| Hiscox | GL, Professional Liability, BOP | Moderate | Smaller residential plumbers wanting low monthly premium |
| Progressive | Commercial Auto, GL (via partners) | Strong for auto | Fleet-heavy plumbing operations, commercial auto |
| Acuity | GL, WC, Auto, Inland Marine, BOP, Umbrella | Strong in footprint | Upper Midwest plumbers, accounts needing flexible endorsements |
| Erie | GL, WC, Auto, BOP, Umbrella | Strong in footprint | Mid-Atlantic and Midwest plumbers, relationship-oriented accounts |
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Top Carriers in Detail
Hartford
Hartford is the default answer for a reason. Plumbing is a core contractor class in their small commercial book, and their appetite is broad across most states. They write GL, WC, commercial auto, inland marine, and umbrella for plumbing contractors, and their BOP product handles smaller accounts cleanly.
What they write well: Residential and commercial plumbing contractors with 3-25 employees, clean loss history, and revenue under $5M. Hartford's package pricing is competitive when you bundle three or more lines, and their small commercial platform lets you quote and bind most plumbing accounts without underwriter involvement.
What they decline or restrict: New ventures with no prior insurance history can be difficult. Hartford also tightens on plumbers doing fire suppression or sprinkler installation – those subclasses carry higher severity exposure, and underwriters often want to see them separately. Plumbers with more than two water damage claims in three years will face surcharges or non-renewal.
Quoting process: Hartford's agent portal handles most plumbing accounts through their automated workflow. Straightforward risks quote in under 15 minutes. Accounts with losses or unusual operations get kicked to an underwriter, which adds 1-3 business days.
Pros: Competitive package pricing, strong brand recognition with contractor clients, reliable claims handling, broad state availability.
Cons: Not the cheapest on monoline GL, automated underwriting can be rigid on borderline accounts, limited flexibility for accounts that fall outside their standard appetite box.
biBERK
biBERK – Berkshire Hathaway's direct-to-small-business platform – has become a go-to for smaller plumbing operations. Their sweet spot is the solo plumber or 2-3 person shop that needs GL and WC without the complexity of a full commercial package.
What they write well: Plumbing contractors with 1-10 employees and revenue under $1M. biBERK prices aggressively on GL for clean plumbing accounts, and their workers comp rates are competitive in most states. The quoting process is fully digital – you can have a bindable quote in under 10 minutes.
What they decline or restrict: biBERK does not offer standalone inland marine, which limits their usefulness for plumbing accounts with significant equipment exposure. They also restrict plumbers doing gas line work in some states, and their underwriting on new ventures is tighter than their marketing suggests.
Quoting process: Entirely online. Enter the business details, answer the underwriting questions, and receive a bindable quote. No phone calls, no submission forms, no waiting for an underwriter. This speed is the primary selling point.
Pros: Fast digital quoting, competitive GL and WC pricing for small accounts, Berkshire Hathaway financial backing, simple policy administration.
Cons: No inland marine, limited endorsement flexibility, coverage customization is minimal, not ideal for larger accounts needing a full package with specialized endorsements.
NEXT Insurance
NEXT Insurance targets the same small contractor segment as biBERK but offers a slightly broader product set that includes commercial auto alongside GL, WC, and BOP.
What they write well: Plumbing startups and small operations, particularly those with 1-5 employees. NEXT's pricing on GL for new plumbing businesses is often the most competitive in the market. Their commercial auto product, while basic, is a convenient addition for small operations that want to bundle auto with GL digitally.
What they decline or restrict: NEXT caps out around $1M-$2M in revenue for most plumbing classes. They are not a fit for commercial plumbing contractors working on large-scale projects. Their inland marine offering is limited, and umbrella capacity is thin – typically offering $1M or $2M per occurrence options, which can bring the total GL aggregate up to $4M.
Quoting process: Similar to biBERK – fully digital, quote-to-bind in minutes. NEXT's platform is arguably the smoothest of the digital carriers for contractor classes. They also offer an agent portal that is functional, though less established than Hartford's or Travelers'.
Pros: Fastest quoting experience, competitive new venture pricing, commercial auto included, clean digital certificates.
Cons: Limited capacity for larger plumbing accounts, thin umbrella limits, endorsement options are basic, less established claims reputation.
Travelers
Travelers writes plumbing contractors through both their small commercial and middle market platforms. For agents with a Travelers appointment, they are a strong option for mid-size plumbing accounts that need broader coverage than the digital carriers provide.
What they write well: Commercial plumbing contractors with 5-50 employees, revenue from $1M to $10M, and multi-line needs including inland marine and umbrella. Travelers' contractors inland marine product is among the best in the market, with equipment schedules that accommodate the specialized tools plumbers carry.
What they decline or restrict: Travelers is more selective than Hartford on residential plumbers with high water damage frequency. They also pull loss runs carefully and will decline accounts with adverse development on prior GL claims. Pricing is not aggressive on monoline GL – Travelers wants the package.
Quoting process: Small commercial accounts can go through their automated platform. Larger plumbing accounts require a formal submission to an underwriter, which typically takes 3-5 business days for a firm indication. Travelers underwriters are generally responsive on contractor classes.
Pros: Excellent inland marine product, strong umbrella capacity, broad geographic reach, competitive package pricing on multi-line accounts.
Cons: Slower quoting on larger accounts, less competitive on monoline, selective on loss history, requires established agency relationship.
Acuity
Acuity is a regional mutual carrier based in Wisconsin that writes aggressively in the Upper Midwest and has expanded to 32 states. For plumbing accounts in their footprint, Acuity frequently beats national carriers on both price and coverage breadth.
What they write well: Residential and commercial plumbers in their core states (Wisconsin, Minnesota, Iowa, Illinois, Indiana, Ohio, and surrounding states). Acuity's underwriters have genuine authority to customize coverage – they will add endorsements, adjust deductibles, and work with agents on accounts that do not fit neatly into an automated box. Their contractors package includes GL, WC, auto, inland marine, and umbrella.
What they decline or restrict: Acuity is limited by geography. If the plumbing contractor operates outside their footprint states, they are not an option. They are also more conservative on very new plumbing ventures – they prefer at least one year of operating history.
Pros: Competitive pricing, flexible underwriting, full package capability, strong agent relationships, dividend-paying mutual.
Cons: Limited geographic footprint, slower digital quoting compared to national carriers, not a fit for accounts outside their core states.
Progressive Commercial
Progressive is primarily a commercial auto carrier for plumbing accounts. Their core product is commercial vehicle coverage, and they write plumbing fleets well – particularly operations with 3-15 vehicles.
What they write well: Commercial auto for plumbing contractors of all sizes. Progressive's pricing is competitive, their quoting is fast, and they handle fleet changes (adding or removing vehicles) efficiently. For agents placing a plumber's auto separately from the rest of the package, Progressive is a consistent option.
What they decline or restrict: Progressive does not write standalone GL for plumbing contractors directly – their GL products come through partnerships and are not as competitive as dedicated GL carriers. They are a monoline auto solution, not a package carrier for plumbing accounts.
Pros: Strong commercial auto pricing, fast quoting, good fleet management tools, broad state availability.
Cons: Not a full package carrier, GL offering is secondary, does not replace the need for a primary GL/WC carrier.
How to Choose the Right Carrier for Your Plumbing Business
The carrier that's right for you depends mostly on three things: how big your business is, what kind of plumbing you do, and how much hand-holding you want from an agent.
If you're a solo plumber or running a 1-3 person shop: Start with biBERK or NEXT. Both can give you a bindable quote online in under 15 minutes. Hiscox is also worth a look if your operation is mostly residential service.
If you have 5+ employees and want a full package: Hartford is the default. It's not always the cheapest, but it's the most likely to handle GL, workers' comp, commercial auto, and inland marine cleanly under one carrier. Travelers competes hard with Hartford on this profile.
If you're in the Upper Midwest: Get an Acuity quote. Their pricing for plumbers in Wisconsin, Iowa, Minnesota, Illinois, Indiana, Ohio, and surrounding states is often the best in the market. Same story for Erie in the Mid-Atlantic.
If your business is fleet-heavy (5+ vehicles): Quote Progressive for commercial auto separately. They're not a full package carrier for plumbers but they're aggressive on commercial vehicle coverage.
Across all of these: quote at least three carriers before you bind. Pricing for the same plumbing operation can vary by 30-50% between carriers. A 15-minute investment in a third quote can save hundreds or thousands per year – but only if you have appointments with the right carriers, which most consumers don't.
That's the case for working with an independent agent: they're appointed with multiple carriers and can run the quotes for you in parallel. Skip ahead to the agent match form if you'd rather have one quote on your behalf.
Frequently Asked Questions
How much does plumber insurance cost?
Plumbing businesses pay an average of $115/month for general liability insurance ($1,378/year) according to Insureon's 2026 data. A business owners policy (BOP) averages $166/month. Workers' compensation runs about $195/month, and commercial auto runs $225/month. Total annual cost for a full plumbing business insurance package typically ranges from $350 to $2,000 per year (MoneyGeek) – about $30 to $165 per month – depending on crew size, services, and coverage limits. See our plumber insurance cost breakdown for the per-coverage averages, a worked quote example, and the underwriting questions to expect.
What insurance do I need as a plumber?
Most plumbing businesses need five core coverages: general liability for property damage and bodily injury claims (water damage is the main exposure), workers' compensation once you have any employees (required in most states), commercial auto for any vehicles used in the business, inland marine for tools and equipment that travel between job sites, and a business owners policy (BOP) if you operate out of a shop. Plumbers working as subcontractors on commercial projects often also need a commercial umbrella to meet the higher liability limits general contractors require.
Do I need workers' comp as a solo plumber with no employees?
In most states, no – workers' comp is required once you have employees, though the threshold varies by state (often the first employee, sometimes more). Even as a solo plumber, you may want a personal accident or business income policy to cover yourself if you're injured on the job. Some general contractors also require their subcontractors to carry workers' comp regardless of employee count.
How long does it take to get plumber insurance?
For small operations, fast. biBERK and NEXT both offer online bindable quotes in under 15 minutes. Hiscox is similar. For larger plumbing businesses going through Hartford, Travelers, Acuity, or Erie via an independent agent, expect 2-5 business days – the agent collects information, submits to underwriters, and presents quotes back to you. Faster on simple accounts, slower on accounts with prior losses or unusual operations.
Can I get plumber insurance with a prior water damage claim?
Yes, but expect higher premiums and possibly fewer carrier options. Carriers underwrite plumbers carefully on water damage history – a single moderate claim usually doesn't disqualify you, but two or more in a five-year period will tighten what's available. Be ready to explain what happened, what you changed (training, written procedures, equipment upgrades), and provide loss runs from your current carrier. An honest narrative submitted upfront often saves days of back-and-forth with underwriters.
Should I buy direct from biBERK / NEXT / Hiscox or go through an agent?
Both work. Direct carriers (biBERK, NEXT, Hiscox) are faster and often cheaper for simple solo and small accounts. An independent agent gives you access to more carriers – including the regional and traditional ones that don't sell direct – and tends to be the better fit for plumbing businesses with employees, vehicles, or any complexity in the operation. The trade-off is speed: a direct-carrier quote takes 15 minutes; an agent-driven multi-quote process takes a few days.
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