Illinois Roofing Workers' Comp: Class Code 5551 Rates and Placement

Evan Swan
3 hours ago
8 min read

Quick answer: what roofing workers' comp costs in Illinois

Roofing in Illinois falls under NCCI class code 5551 — Roofing, All Kinds, and Drivers. For 2026, the advisory loss cost NCCI filed for 5551 in Illinois sits near $30 per $100 of payroll, making it the single most expensive class code in the state. That number is not your premium. It is the raw expected-loss component before a carrier applies its loss cost multiplier, before your experience modification factor, and before any schedule credit or debit. A clean Illinois roofer with a mod under 1.00 and a real fall-protection program lands well under that figure. A roofer with a 1.60 mod and two open lost-time claims can land well above it, or find that nobody quotes at all.

Will we write it? Tell us the operation, the state, and roughly where the mod sits — we'll come back within one business day with a straight answer: yes, no, or what we'd need to see. No ACORD, no loss runs, no obligation. Agents and business owners both welcome. Run it past us here.

Who has to carry workers' comp in Illinois

Illinois requires coverage for almost anyone hired, injured, or whose employment is localized in the state. One employee triggers the obligation — there is no small-employer threshold to hide behind.

Roofing is specifically named among the extra-hazardous occupations in the Workers' Compensation Act, alongside construction and trucking at construction sites. Employers in those fields are automatically covered by the Act.

There is one narrow exception. Under Sections 3(17) and 3(20), sole proprietors, business partners, corporate officers and LLC members may elect not to be covered themselves — corporate officers and LLC members do it by notifying the carrier in writing. That election covers the owner only. It does nothing for employees, and it does not remove the requirement to insure them.

Your Illinois roofing license is tied to your comp policy

This is the part out-of-state carriers and generic quote sites miss. The Illinois Roofing Industry Licensing Act (225 ILCS 335) makes proof of workers' compensation coverage a condition of holding a roofing license. Lose the policy and the license is exposed.

Two license classes. A limited license covers residential property of eight units or fewer. An unlimited license covers residential, commercial and industrial roofing.
Bonding. $10,000 surety bond for a limited license, $25,000 for an unlimited license.
Insurance proof. Public liability and property damage coverage, workers' compensation coverage, and an Illinois unemployment insurance ID.
Renewal. Licenses expire at midnight on June 30 of each odd-numbered year.
Unlicensed work. Civil penalties run up to $15,000 per violation, raised from $5,000 by Public Act 104-0427 effective 15 August 2025.

Practically, that means a lapse in coverage is not just an insurance problem in Illinois. A cancellation notice starts a clock on the license, and a lapsed license kills the ability to pull permits and bid work.

What going bare actually costs in Illinois

Illinois is one of the more aggressive states on enforcement. An employer that knowingly fails to insure faces:

Fines of up to $500 per day of non-compliance, with a $10,000 minimum.
A work-stop order — the Commission can halt all business operations until coverage is in place.
Criminal exposure for corporate officers: a Class A misdemeanor for negligent failure to insure, a Class 4 felony for a knowing violation.
Loss of the exclusive remedy. An uninsured employer forfeits the Act's protections, and an injured employee can sue in civil court without the Act's benefit caps.

On a roofing operation, that last item is the one that ends businesses. A single fall from height litigated in civil court, with no statutory cap and no defense under the Act, is a company-ending event.

Subcontractors: the exposure most Illinois roofers miss

If you use subcontracted crews, you can be held responsible for the compensation owed to an uninsured sub's injured employees. Two things follow from that.

First, get certificates of insurance for every sub, current for the whole job, not just at contract signing. A certificate dated in March does not help you when a crew member falls in September and the sub's policy cancelled in June.

Second, expect the auditor to look. Any subcontractor payroll you cannot support with a valid certificate gets picked up as your payroll at your roofing rate at audit. On a $30-per-$100 class code, that is a five- or six-figure surprise. We have seen Illinois roofers hit with audit bills larger than their original annual premium purely on uninsured sub payroll.

What actually moves an Illinois roofing rate

The loss cost is fixed by class. Everything that separates a good Illinois roofing quote from a bad one sits on top of it.

Experience modification factor. The single biggest lever. Frequency hurts more than severity — four $8,000 claims damage a mod far more than one $32,000 claim, because the formula weights claim count heavily. Reducing small, recordable-but-minor claims is the fastest route to a lower mod.
Payroll classification. Clerical and outside sales staff should not be sitting in 5551. Shop and yard work may be separable. Misclassified payroll is the most common overcharge we find on Illinois roofing policies.
Documented fall protection. Not a binder on a shelf. Written program, documented toolbox talks, harness inspection logs, and a competent person named on each site. Underwriters price the difference.
Claims handling discipline. Reporting within 24 hours, a return-to-work program with real light-duty roles, and closing reserves rather than letting them sit open for years.
Residential versus commercial mix. Steep-slope residential tear-off prices differently from low-slope commercial. Be specific — a vague description gets priced for the worst case.
Height and torch work. Work above three stories and hot-torch application both narrow the market and move the price.

Placing an Illinois roofing account with a high mod

A mod above roughly 1.25 on an Illinois roofing risk closes most of the standard market. Above 1.50, it closes nearly all of it, and the account tends to drift toward the assigned risk pool — where the rate is not negotiable, there are no dividends, and the account sits until the mod comes down.

That drift is avoidable more often than agents expect. What gets a hard Illinois roofing account placed:

A mod worksheet, not just the number. If the mod is inflated by claims that should have been closed, or by a reserve nobody has challenged in two years, that is fixable and it is worth showing.
A loss narrative. Three years of loss runs with a written explanation of what happened, what changed, and what has happened since. Underwriters price uncertainty; a narrative removes some of it.
Proof the corrective action is real. Dated training records after the loss that triggered the problem. Anything that shows the operation is not the one that generated the losses.
Honest exposure detail. Crew size, average height, percentage of tear-off, subcontractor use, states worked. Underwriters find the gaps at audit anyway, and a discovered gap costs more than a disclosed one.

We place roofing on a guaranteed-cost basis, through PEO and ASO comp-only programs with no payroll bundling, and on pay-as-you-go billing tied to actual wages — including accounts coming out of the assigned risk pool and accounts other agents have already been declined on.

Chicago-area roofers: what's different

The class code and the statute are the same statewide, but Chicago-market roofing accounts carry a few specifics worth flagging on a submission:

Higher commercial and low-slope mix than downstate, which changes the loss picture and the underwriter you want on the file.
Union crews on many commercial jobs — wage rates raise the payroll base, which raises premium at a fixed rate even when the operation is clean.
Municipal licensing on top of the state license in the City of Chicago and several suburbs. Check both.
Severe-weather storm-chasing work. Out-of-state crews and short-term hires are an audit and classification exposure; if you bring in crews after a hail event, tell your underwriter before the audit finds it.

Multi-state roofers

If you work Illinois plus neighboring states, the class code stays 5551 in NCCI states but the loss cost, the licensing regime and the officer-exclusion rules all change at the border. California is the outlier — it splits roofing into a dual-wage pair, class 5552 and 5553, with an hourly wage threshold that decides which one you get. If you are quoting a roofer that works both, do not assume the California payroll prices like the Illinois payroll.

New York is the other outlier: it uses its own NYCIRB rate manual rather than the NCCI one, splits roofing across more than one class code, and runs a construction payroll limitation program that cuts the premium base on eligible commercial work. Nothing about an Illinois roofing policy carries across that border cleanly.

The full national picture — 5551, the California dual-wage split, C-39 audit rules and high-mod placement — is in our roofing workers' comp guide.

Frequently asked questions

What is the workers' comp class code for roofing in Illinois?

NCCI class code 5551, Roofing — All Kinds, and Drivers. Illinois is an NCCI state, so the same code applies as in most of the country. California is the main exception, using its own 5552/5553 dual-wage pair.

How much is roofing workers' comp in Illinois?

NCCI's 2026 advisory loss cost for 5551 in Illinois is around $30 per $100 of payroll — the highest of any Illinois class. What you pay is that figure adjusted by the carrier's loss cost multiplier, your experience mod, and any schedule credit or debit, so the real spread between a clean roofer and a distressed one is very wide.

Do Illinois roofing contractors need workers' comp with no employees?

A genuine sole proprietor with no employees can elect out of coverage on themselves. But the Roofing Industry Licensing Act requires proof of workers' compensation coverage to hold a license, and general contractors will not let an uninsured sub on site. In practice most Illinois roofers carry a policy whether or not the Act compels it.

Can a general contractor be liable for an uninsured roofing sub's injury?

Yes. Illinois can hold the contractor above an uninsured subcontractor responsible for compensation owed to that sub's injured employees. Collect current certificates for every sub, for the whole job, and keep them for the audit.

Can you place Illinois roofing with a high experience mod?

Yes — that is the bulk of what we do. Send the mod worksheet, three years of loss runs, and a short narrative of what changed. Mods above 1.50 are placeable; they need documentation rather than optimism.

What happens if an Illinois employer has no workers' comp?

Fines up to $500 per day with a $10,000 minimum, a possible work-stop order halting operations, Class A misdemeanor or Class 4 felony exposure for corporate officers, and loss of the Act's exclusive-remedy protection — meaning an injured worker can sue in civil court without the Act's caps.