Spray Foam Insulation License Requirements in Illinois

Licensing body: No statewide general-contractor board (local jurisdictions only; IDFPR licenses roofing and plumbing separately)

Illinois has no statewide general contractor license, and insulation is not a state-licensed trade. Licensing is entirely local and varies widely — Chicago, for example, runs its own separate licensing regime. Only plumbing and roofing are licensed at the state level (through IDFPR), and neither covers insulation work. General contractors must register their business with the Illinois Department of Revenue, but that is a tax registration, not a trade license.

SPFA (Spray Polyurethane Foam Alliance) certification is not a legal requirement here — no state licensing board makes it a condition of licensure. It remains a voluntary industry credential that some manufacturers require for warranty coverage and that SPFA's Professional Certification Program (PCP) references in federal Unified Facilities Guide Specifications (UFGS) for government contracts.

IDFPR's roofing license requires a $10,000 (limited) or $25,000 (unlimited) surety bond, but this applies to roofing specifically, not insulation. No statewide insulation bonding requirement was identified — check with your local municipality for any local bonding rule.