Contractor licensing

Illinois contractor license requirements

Illinois does not license general contractors at the state level. The state licenses roofing contractors through IDFPR and plumbers through IDPH, while cities such as Chicago license general contractors themselves.

A contractor and plan reviewer discuss drawings and permit paperwork across an office desk.
Keep plans, permit requirements and approvals together when preparing construction work. AI-generated illustration.

There is no statewide general contractor license in Illinois. If you build or remodel, the license you need depends on two things: your trade and your town. The state itself licenses roofing contractors (through the Illinois Department of Financial and Professional Regulation, or IDFPR) and plumbers and plumbing contractors (through the Illinois Department of Public Health, or IDPH). General contractor licensing is left to local government, and the City of Chicago runs the most detailed program, with five license classes tied to project value. On top of that, anyone doing home repair work has to follow the state's written contract and consumer pamphlet rules.

Illinois contractor rules at a glance
RuleIllinois
Statewide general contractor licenseNo. Licensed locally where a city or village requires it
RoofingState license from IDFPR: limited (residential, 8 units or fewer) or unlimited
Roofing bond$10,000 limited; $25,000 unlimited
Roofing insurance$250,000 property damage and $500,000 liability per occurrence
Roofing examQualifying party must pass within 3 years of applying
PlumbingIDPH licenses plumbers; plumbing contractors register annually
Chicago general contractorsClass A to E, by project value, with $1 million to $5 million insurance
Home repair over $1,000Written contract plus the state consumer rights pamphlet
LookupIDFPR License Look Up; IDPH plumbing verification; Chicago contractor lookup

Roofing contractors: the one statewide construction license

Roofers are the exception to Illinois's hands-off approach. The Illinois Roofing Industry Licensing Act (225 ILCS 335) requires a state license from IDFPR, and there are two types:

  • Limited roofing license: residential roofing only, including residential buildings with 8 units or fewer. Requires a $10,000 continuous bond.
  • Unlimited roofing license: residential, commercial, and industrial roofing. Requires a $25,000 continuous bond.

Every license needs a qualifying party, the person who takes the exam for the company and actively runs its day-to-day roofing work. The qualifying party must pass either the Illinois Residential Examination or the Illinois Residential, Commercial and Industrial Examination within three years of the application date, or the fee is forfeited. One person generally cannot qualify more than one licensee. If your qualifying party leaves, you and they must notify IDFPR in writing within 30 business days, and a license with no active qualifying party becomes inoperable.

What goes in the roofing application

  1. The IDFPR application, naming the license type and the qualifying party.
  2. The $125 application fee.
  3. Form RF-INS certifying at least $250,000 property damage coverage and $500,000 liability coverage per occurrence.
  4. The bond form (BD-LRF for limited, BD-URF for unlimited) completed by a surety licensed in Illinois.
  5. If you have employees, a workers' compensation certificate and an Illinois Department of Employment Security statement showing your unemployment insurance account is current.
  6. Entity documents filed with the Illinois Secretary of State. For an LLC, the purposes section must say it provides limited or unlimited roofing services under the Act.

IDFPR asks applicants to allow eight business weeks before checking on status. Every roofing license expires on December 31 of each odd-numbered year, no matter when it was issued. Unlicensed roofing is a Class A misdemeanor for a first offense, and IDFPR can add civil penalties up to $15,000 per offense. Starting a roofing company? See how to start a roofing business.

Chicago general contractor license

Inside Chicago, a business that bids, performs, hires for, or controls permitted construction or demolition work needs a general contractor license from the Department of Buildings. Subcontractors working under a licensed GC's supervision do not, but anyone contracting directly with the owner does. The class you need depends on project value, meaning the fair market value of all labor and materials by every contractor at the site.

City of Chicago general contractor classes (2026)
ClassMax project valueDemolition allowedMin. insurance per occurrence2026 fee
AUnlimitedOrdinary or complex$5 million$3,500
B$20 millionOrdinary or complex$3 million$1,800
C$10 millionOrdinary$2 million$1,300
D$4 millionOrdinary$2 million$900
E$500,000None$1 million$300

The higher Class B, C, and D project limits and the $2 million Class C and D insurance minimum took effect January 1, 2026. Existing C and D holders must show the higher coverage when the policy on file expires. Policies must come from an insurer authorized in Illinois with an A.M. Best rating of B+ or higher and cover completed operations. The application also requires a statement of financial solvency and ID for the principals. Continental Testing Services processes applications and renewals by mail. Licenses last one year and go inactive automatically if the insurance lapses. Electrical, plumbing, masonry, and a few other trades need their own city licenses.

Home repair contracts and plumbing

Even without a license, residential contractors face state rules. Before signing any home repair or remodeling contract over $1,000, you must give the customer the Home Repair: Know Your Consumer Rights pamphlet. The work also needs a written contract or work order listing the total cost, including parts, materials, and any charge for the estimate, plus your name and address. Building contract paperwork once and reusing it saves a lot of rework; see how to write a remodeling contract.

Plumbing falls under the Illinois Plumbing License Law (225 ILCS 320). Plumbers qualify by passing a state exam after working as a licensed apprentice, and IDPH requires at least four years of apprenticeship. IDPH treats any licensed plumber or apprentice who performs plumbing work for another person as a plumbing contractor, and plumbing contractors must register with IDPH every year, carrying general liability, bodily injury, property damage, and workers' compensation insurance. Every plumbing ad must show a license number.

Illinois contractor license lookup

  • Roofing (IDFPR): online-dfpr.micropact.com, License Look Up.
  • Plumbers and plumbing contractors (IDPH): the Plumbing License Verification page on IDPH's licensing portal.
  • Chicago general contractors and trades: the City of Chicago's Licensed Contractors lookup at webapps1.chicago.gov.

Verify before you sign a sub and again before final payment, and keep a copy of each sub's insurance certificate on file. Smart Business Automator tracks license numbers and insurance expirations for every sub on every job, so an expired policy shows up before the crew does. See subcontractor compliance automation, and for payment protection read Illinois mechanics lien rules.

Frequently asked questions

Does Illinois require a general contractor license?

Not at the state level. General contractors are licensed by local governments that choose to do so, such as the City of Chicago. Roofers and plumbers do need state credentials.

How much is the Illinois roofing license bond?

The Roofing Industry Licensing Act requires a continuous bond of $10,000 for a limited license and $25,000 for an unlimited license.

What insurance do Illinois roofers need?

IDFPR's RF-INS form certifies at least $250,000 property damage coverage and $500,000 liability coverage per occurrence. Roofers with employees also need workers' compensation and an unemployment insurance account in good standing.

Which Chicago general contractor class do I need?

It depends on project value. Class E covers projects up to $500,000, Class D up to $4 million, Class C up to $10 million, Class B up to $20 million, and Class A is unlimited.

How do I look up an Illinois contractor license?

Use IDFPR's License Look Up for roofers, IDPH's Plumbing License Verification for plumbers, and the City of Chicago's Licensed Contractors lookup for Chicago general contractors and trades.

Sources

  1. IDFPR: Roofing Contractor
  2. IDFPR: Application for Licensed Roofing Contractor (DPR-RF)
  3. Illinois General Assembly: Illinois Roofing Industry Licensing Act (225 ILCS 335)
  4. City of Chicago Department of Buildings: General Contractor License
  5. Illinois Department of Public Health: Plumbing
  6. Illinois Attorney General: Home Repair and Construction: What You Should Know
  7. IDFPR: License Look Up

Laws and rates change. Confirm current requirements with the state agency before you bid, file, or pay. This page is general information, not legal advice.

Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

Get a free assessment