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IL State Regulations

Illinois Contractor Proposals & Building Code Guide.

Official licensing boards, governing mechanical and electrical codes, statutory contract disclosures, and lien law notices for specialty trade contractors operating in Illinois.

Climate Zone Standards
IECC Zone 4 & 5 (Cold / Freeze-Thaw Cycles, High Heating Demand)
Lien Notice Law
Illinois Mechanics Lien Act (770 ILCS 60) requires 90-day subcontractor notice and 4-month claim filing.
Consumer Right of Rescission
Illinois Home Repair and Remodeling Act (815 ILCS 513) requires 'Home Repair: Know Your Consumer Rights' pamphlet and 3-day rescission.

Illinois Trade Licensing & Code Requirements

Select your specialty trade to access state-specific proposal templates and compliance language.

Illinois HVAC

IL
Licensing Board: Local Municipal Registration (City of Chicago Department of Buildings, Cook County)
Code Cycle: 2021 International Mechanical Code / Illinois Energy Conservation Code
Key Requirements
  • •Illinois Home Repair and Remodeling Act requires signed consumer rights acknowledgment for projects over $1,000.
  • •14.3 SEER2 North minimum applies to split AC replacements.

Illinois Roofing

IL
Licensing Board: Illinois Department of Financial and Professional Regulation (IDFPR) - Roofing Contractor
Code Cycle: Illinois State Building Code / 2021 International Residential Code
Key Requirements
  • •State Roofing Contractor license number (104/105 prefix) and qualifier name must appear on all contracts, trucks, and bids.
  • •Illinois Insurance Code 215 ILCS 5/416 prohibits roofing contractors from rebating or paying insurance deductibles.

Illinois Electrical

IL
Licensing Board: Municipal Licensing (City of Chicago Supervising Electrician / Suburban Municipal Registrations)
Code Cycle: 2020 / 2023 National Electrical Code (Chicago Electrical Code mandates rigid/EMT conduit)
Key Requirements
  • •Chicago Electrical Code prohibits Romex (NM cable) in residential structures; requires metallic conduit (EMT).
  • •Supervising Electrician license required to pull permits in City of Chicago.

Illinois Plumbing

IL
Licensing Board: Illinois Department of Public Health (IDPH) - Plumbing Program / City of Chicago Plumber Licensing
Code Cycle: Illinois Plumbing Code (77 Ill. Adm. Code 890)
Key Requirements
  • •State Plumber license number (055/058 prefix) must appear on all contracts, proposals, and advertising.
  • •Lead Service Line Replacement and Notification Act mandates lead pipe replacement during service work.

Illinois Mandatory Statutory Contract Notice

Illinois law requires contractors to provide customers with the 'Home Repair: Know Your Consumer Rights' pamphlet prior to signing any contract exceeding $1,000.

*ScopeCrafters automatically formats this disclosure into the legal terms section of your proposals.

Frequently Asked Questions: Illinois Contractor Proposals

Do contractors in Illinois need a state license to write proposals?▾

In Illinois, licensing depends on the trade. HVAC, electrical, and plumbing contractors are generally governed by state licensing boards or municipal master registrations. Written proposals must display the active license number and legal entity name.

What contract disclosures are legally required in Illinois?▾

Residential contractors in Illinois must comply with statutory cancellation notices (typically a 3-day right of rescission under Home Solicitation Acts) and provide mandatory mechanics lien warnings or preliminary notices before work commences.

How does ScopeCrafters automate Illinois proposal compliance?▾

ScopeCrafters pre-populates your company's state license number, local building code references (2021 International Mechanical ...), and required statutory terms into customer-ready proposal PDFs in under 5 minutes.

Write Illinois-compliant trade proposals in 5 minutes

No more manual copy-pasting of license disclosures or SEER2 codes. ScopeCrafters puts your Illinois business license, logo, and warranty terms onto customer-ready PDFs on your phone.