How Much Does Marine Contractor Insurance Cost in New York?
Marine contractors ask the same first question as every contractor: what will this cost me? The honest answer has two parts. Workers' comp and USL&H start from published New York numbers you can check. Marine liability, hull and P&I and the bumbershoot are priced by underwriters on your operations. Here is how both sides work, with the 2026 figures.
Marine contractor insurance in New York is usually the largest line item on a dock, seawall or pile driving job, and workers' comp with USL&H is typically the biggest piece. It starts from NYCIRB loss costs per $100 of payroll, effective October 1, 2026: for example $4.519 for pile driving (6003), $3.864 for crane service (9534), $11.232 for carpentry (5403) and $16.455 for concrete (5213). Payroll exposed to the federal Longshore Act carries an additional USL&H factor on top. Marine general liability, hull and P&I, equipment and the bumbershoot are priced by underwriters on your operations, vessels, contracts and losses, and most USL&H and marine markets set meaningful minimum premiums.
This guide covers price. For what each coverage does, see marine contractors insurance in New York; for the federal rules, see USL&H insurance New York.
Where the money goes
| Coverage | How it is priced | What moves the number |
|---|---|---|
| Workers' comp + USL&H | Payroll by class code × loss cost × insurer multiplier, plus a USL&H factor on federal-exposed payroll | Payroll split land vs water, class codes, experience mod, minimum premium |
| Maritime Employers Liability | Per crew member or on payroll for employees assigned to vessels | Number of crew, vessel types, limits |
| Marine general liability | Revenue or payroll, by operation | Type of work, public vs residential, completed operations, contracts, losses |
| Hull & P&I | Agreed value of each vessel for hull; per vessel for P&I | Vessel age, condition survey, navigation area, crew experience, lay-up |
| Contractor's equipment | Rate per $100 of scheduled equipment value | Use on barges, cranes, theft and overboard exposure, deductible |
| Builders risk | Rate on project value for the term | Storm, flood and ice exposure, construction type, duration |
| Bumbershoot | Flat or rated over the underlying lines | Limits, underlying program, contract requirements |
2026 New York loss costs for marine construction classes
New York has no single "marine contractor" class code. Payroll is classified by what each employee does. These are NYCIRB loss costs per $100 of payroll for policies effective on or after October 1, 2026:
| Class code | Work | Loss cost per $100 of payroll |
|---|---|---|
| 6003 | Pile driving, NOC | $4.519 |
| 6005 | Breakwater or jetty construction | $2.986 |
| 6217 | Excavation | $3.227 |
| 9534 | Mobile crane and hoisting service | $3.864 |
| 5222 | Concrete construction for bridges or culverts | $5.112 |
| 5057 | Iron or steel erection, NOC | $5.722 |
| 5403 | Carpentry, NOC | $11.232 |
| 5213 | Concrete construction, NOC | $16.455 |
Source: NYCIRB Classification Digest, rating values effective October 1, 2026. Loss costs are the starting point. Each insurer applies its own filed multiplier, then your experience mod, then state assessments.
How USL&H changes the math
For payroll exposed to the federal Longshore Act, NYCIRB applies a USL&H differential that raises the loss cost. On the classes we checked in the 2026 digest, that differential was 1.937, which nearly doubles the loss cost for that part of payroll.
Worked example (illustrative only). A pile driving contractor with $500,000 of payroll in class 6003, of which $300,000 is work from barges and piers:
- Land-side: $200,000 ÷ 100 × $4.519 = $9,038
- Over-water: $300,000 ÷ 100 × $4.519 × 1.937 = $26,260
- Total loss cost premium: about $35,300
- If the insurer's multiplier were 1.30 and the mod 1.00: about $45,900 before assessments
The 1.30 multiplier is an assumption for the example. Real multipliers vary by insurer, and USL&H markets often apply their own minimum premiums. Report the same payroll as all over-water and the loss cost premium rises to about $43,800 before the multiplier, which is why the payroll split matters.
The payroll split is the biggest lever you control. Only payroll for work on or next to navigable water should carry the USL&H charge. Keep job records that show where each crew worked. Without them, an auditor may treat all of it as federal exposure.
What drives marine GL, P&I and bumbershoot pricing
- Operations: residential docks, commercial piers, public bulkheads and dredging are underwritten very differently
- Vessels: the number, age and condition of barges and work boats, and a current condition and valuation survey
- Contracts: additional insured, primary and non-contributory and waiver requirements, and required limits
- Completed operations: bulkheads and piers can fail years after the job
- Loss history: five years of currently valued loss runs on every line
- Pollution: fuel and dredging spoils exposure, if you need it added
As a reference point, our commercial marine page shows a recent seawall construction contractor program (marine GL, hull, P&I, inland marine and excess) placed at $56,000 in annual premium. Your number depends on your operations.
Six ways to lower marine contractor insurance cost
- Split payroll between land work and work on or over the water, with records
- Check every class code against the work each employee actually does
- Survey your vessels and keep maintenance and crew training records
- Read contracts before you bid so you buy the limits and endorsements once
- Collect USL&H certificates from every sub: under the Longshore Act, an uninsured sub's employees become your liability
- Submit once, complete: the marine market is small and duplicate submissions slow everything down
Working in Florida too? See marine insurance in Florida and New York and our commercial vessels and marinas page.
Fastest way to a quote: email your current policies (workers' comp with any USL&H endorsement, GL, hull and P&I), 5 years of loss runs, payroll split between land work and work on or over the water, your vessel and equipment schedules and the insurance section of a typical contract to adolfo@nextguardinsurance.com. One complete submission moves faster than ten phone calls.
Please send your account to one broker. The marine market is small; when several brokers submit the same account to the same underwriters, the account gets blocked and quotes slow down.
Get your real marine program number
Send your payroll split, vessel and equipment schedules and loss runs. We check your classes, build comp, USL&H, MEL, marine GL, P&I and bumbershoot together, and send options side by side. Quote in 48 hours once your submission is complete.
Watch: NextGuard on YouTube
Short explainers on contractor, marine and commercial insurance in Florida and New York, in English and Spanish.
Frequently Asked Questions
How much does marine contractor insurance cost in New York?
It depends on payroll, class codes, vessels, operations and contracts. Workers' comp starts from NYCIRB loss costs per $100 of payroll, such as $4.519 for pile driving (6003) and $11.232 for carpentry (5403) for policies effective October 1, 2026, with a USL&H factor added for federal-exposed payroll. Marine GL, hull and P&I, equipment and the bumbershoot are priced by underwriters on your operations.
How much does USL&H coverage cost?
USL&H is priced on payroll exposed to the federal Longshore Act. In New York, NYCIRB applies a USL&H differential to the state loss cost; on the 2026 classes we checked it was 1.937, which nearly doubles the loss cost for that payroll before the insurer's multiplier and your experience mod. Many USL&H markets also set meaningful minimum premiums.
What is the workers' comp rate for pile driving in New York?
For policies effective on or after October 1, 2026, the NYCIRB loss cost for pile driving NOC (class 6003) is $4.519 per $100 of payroll. Your premium is higher once the insurer's multiplier, your experience mod, any USL&H factor and state assessments are applied.
Why is marine contractor insurance so expensive?
Marine construction combines high-severity injuries, federal Longshore benefits, vessel exposure and long-tail completed operations claims, and only a small group of underwriters writes it. That keeps rates and minimum premiums higher than for land-only contractors.
How can I lower my USL&H premium?
Report only payroll for work on or next to navigable water as USL&H exposure and keep records that support the split, make sure each employee is in the correct class code, collect USL&H certificates from subcontractors and work on your experience mod.
Does a dock builder pay the same as a pile driving contractor?
Not necessarily. New York has no separate dock builder class, so payroll is classified by the work done: pile driving, carpentry, concrete or steel erection. A crew doing mostly carpentry on docks can carry a higher loss cost than a pile driving crew.
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