Illinois Plumbing Contractor Bond and Insurance Requirements 2026

Illinois requires Plumbing Contractors to carry specific minimum insurance and bonding before pulling permits or signing contracts. Operating without required coverage can void contracts, expose you to unlimited personal liability, and trigger license suspension.

Minimum coverage requirements

• General liability insurance (minimum limits vary by license class)
• Workers' compensation if you have any employees
• Contractor license bond (amount set by state licensing board)
• Certificate of insurance filed with licensing authority
• Additional insured endorsements often required on contracts

What happens if you miss this?

Regulators in Illinois do not proactively warn businesses before enforcement. Fines, stop-work orders, license suspensions, and legal liability typically arrive without advance notice. Staying current is the only reliable protection.