Illinois Surety Bonds

Contractor License & Permit Bonds in Illinois

Find the exact license, permit, right-of-way, or public-works bond your Illinois obligee requires — by city, county, and the state. License and permit bonds issue online.

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How contractor bonding works in Illinois

Illinois bonds two trades at the state level — unusual for the Midwest

Unlike Indiana and Ohio, which require no state contractor bond, Illinois requires a state surety bond for two trades. Plumbing contractors register with the Illinois Department of Public Health and post a $20,000 indemnification bond (225 ILCS 320/13.1). Roofing contractors are licensed by IDFPR and post a continuous bond of $10,000 for a limited license or $25,000 for an unlimited license (225 ILCS 335/3). If you roof or do plumbing work in Illinois, your bond is set by the state — not the city.

Chicago licenses general contractors by insurance, not a bond

The City of Chicago licenses general contractors in classes A through E, tiered by project value (Class A unlimited; Class E capped at $500,000). The credential is a fee plus insurance — not a surety bond. So the largest obligee in the state does not generate a contractor-license bond; specific Chicago permit and public-way bonds are tracked separately.

No statewide general-contractor license

Outside the two state-bonded trades, Illinois issues no statewide general-contractor license. General contractor and right-of-way bonds are municipal or county — set by each obligee — so the bond you need depends on where you work.

Public works are bonded by statute, on a moving threshold

The Public Construction Bond Act (30 ILCS 550/1) requires a single bond covering both performance and payment on public-work contracts over $150,000 for state and local public works, and over $500,000 for IDOT and the Illinois State Toll Highway Authority. The $150,000 level comes from Public Act 103-570 and sunsets back to over $50,000 on January 1, 2029. The penal sum is fixed by the contracting public body, so it is project-specific.

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Underwritten bonds in Illinois

Bid, performance, and payment bonds are individually underwritten — request a quote rather than the instant portal:

Illinois surety bond FAQ

Does Illinois require a state contractor license bond?
For two trades, yes: plumbing contractors post a $20,000 bond (IDPH) and roofing contractors post $10,000 for a limited license or $25,000 for an unlimited license (IDFPR). Illinois has no statewide general-contractor license, so most other contractor bonds are municipal.
Do roofing contractors need a bond in Illinois?
Yes. A continuous $10,000 bond for a limited license or $25,000 for an unlimited license under 225 ILCS 335/3, plus separate public-liability and property-damage insurance whose amount the Department sets.
Do plumbing contractors need a bond in Illinois?
Yes. Plumbing contractors register with the Illinois Department of Public Health and post a $20,000 indemnification bond — or a $20,000 letter of credit — naming the Department (225 ILCS 320/13.1).
Does Chicago require a general-contractor license bond?
No. Chicago licenses general contractors in classes A through E by project value, with annual fees and insurance, not a surety bond.
Are Illinois public-works bonds different?
Yes. Under 30 ILCS 550/1 a single performance-and-payment bond is required on public works over $150,000 (over $500,000 for IDOT and the Tollway); that $150,000 threshold sunsets to $50,000 on January 1, 2029. These are underwritten.
Who is Wexford Bonds?
Wexford Bonds is the surety bond brand of Wexford Insurance, LLC, licensed in 48 states. We write Illinois roofing, plumbing, contractor, right-of-way, and public-works bonds.

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