A roofing contractor needs General Liability (high-hazard, with completed-operations), Workers' Compensation (priced off NCCI class 5551, Roofing — one of the most expensive WC classes), Commercial Auto, and Tools & Equipment, plus often a contractor's bond. Because of fall exposure, roofing is hard to place and premiums are high — the filed 5551 loss cost ranges from about $2.91 to $25.33 per $100 of payroll in the states we track (real filed rates, table below).
Roofing carries the highest fall and hot-work exposure of the trades, which makes it one of the hardest to insure and one of the most state-dependent for cost. This guide covers the coverage stack, the high-hazard claims, and the real per-state workers-comp loss costs filed for NCCI class 5551. Figures below are real filed rates as published by each state's rating bureau; your premium depends on payroll, experience mod, and operations. Consult a licensed agent for your quote.
What insurance does a roofing contractor need?
General Liability (with Completed Operations)
Third-party property damage and injury — water intrusion after a job, a dropped bundle damaging a car, or injury below the work. Roofing GL is high-hazard and pricier than most trades; completed-operations coverage is critical because leaks show up after you leave.
Workers' Compensation (NCCI Class 5551)
Pays medical bills and lost wages for crew injuries — falls are the dominant, highest-severity roofing claim. Class 5551 is among the most expensive WC classes; its filed loss cost varies dramatically by state (table below).
Commercial Auto
Covers trucks and the materials/tools inside. Personal auto denies commercial-use claims.
Tools & Equipment · Bond · Umbrella
Inland marine for nail guns, compressors, and ladders; a surety bond for licensing (see surety bonds); and an umbrella for the catastrophic-claim potential inherent in fall exposure.
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Filed workers-comp loss costs — NCCI class 5551, by state
The real driver of roofing WC cost, and data most sites do not publish: the actual filed workers-comp loss cost or administered rate for NCCI class 5551 (Roofing — All Kinds & Drivers), as filed with each state's rating bureau, per $100 of payroll. These are among the highest WC rates of any trade because of fall severity. Your premium is roughly this rate × payroll (÷100) × the carrier's multiplier × your experience mod — see how insurance rates are set.
| State | Filed rate / loss cost (per $100 payroll) | Filing bureau | Effective |
|---|---|---|---|
| New Jersey | $25.33 | NJCRIB (administered rate) | 2026 |
| Wisconsin | $13.18 | WCRB (administered rate) | 2025 |
| Missouri | $10.14 | NCCI (advisory loss cost) | 2026 |
| North Carolina | $6.84 | NCRB (advisory loss cost) | 2026 |
| Oregon | $5.75 | NCCI (advisory pure premium) | 2026 |
| Colorado | $5.40 | NCCI (advisory loss cost) | 2026 |
| Indiana | $2.91 | ICRB (advisory loss cost) | 2025 |
Source: workers-comp rate filings captured from each state's rating bureau. "Advisory loss cost" is the bureau-published cost before a carrier applies its multiplier; "administered rate" (NJ, WI) is the manual rate. See our Insurance Rate Changes Tracker for the underlying filings. Rates per $100 of payroll; effective dates vary by filing.
Common roofing claims and risks
Roofing sub-niches
Residential shingle, commercial flat/TPO/EPDM, metal roofing, repair vs full replacement, and storm/restoration roofers. Steep and high-elevation work and hot-work (flat roofs) raise the exposure and the price. This is distinct from a general contractor and the broader contractor pillar.
Frequently Asked Questions
Why is roofing insurance so expensive?
Fall exposure. Roofing has among the highest workers-comp rates of any trade (NCCI class 5551), and its general liability is high-hazard because of fall injuries, dropped material, and post-job leaks. Both drive premium well above most trades.
What is NCCI class 5551?
It is the workers-comp classification for roofing (all kinds). Your roofing WC premium is priced off the filed loss cost for this class in your state — one of the most expensive WC classes.
Why does roofing workers-comp cost vary so much by state?
Because the 5551 loss cost is filed state by state. In the states we track it ranges from about $2.91 (Indiana) to $25.33 (New Jersey) per $100 of payroll — nearly a 9x spread — before a carrier's multiplier and your experience mod.
Do roofers need completed-operations coverage?
Yes. Roof leaks and damage often appear after the job is finished, so completed-operations coverage under general liability is essential; a GL policy that excludes it leaves a major gap.
Do roofers need insurance for hot work?
If you do torch-down or hot-work on flat roofs, yes — it is a fire exposure, and some carriers require a hot-work warranty or specific safety procedures as a condition of coverage.
How is my roofing workers-comp premium calculated?
Roughly: the filed 5551 loss cost (per $100 of payroll) × your payroll ÷ 100 × the carrier's loss-cost multiplier × your experience modifier. See our guide on how insurance rates are set.
Quick glossary — roofing insurance terms
- NCCI Class 5551
- The workers-comp classification for roofing (all kinds) — among the most expensive WC classes due to fall severity.
- Completed operations
- GL coverage for damage or injury from your work after it is finished — critical for roofing (leaks appear later).
- Advisory loss cost
- The bureau-published cost per $100 of payroll before a carrier applies its multiplier.
- Hot-work warranty
- A carrier condition around torch/heat work on roofs to control fire risk.