HVAC Contractor license planning guide for Wisconsin
HVAC Contractor License + EPA Section 608 Certification (refrigerant)
Typical requirements to verify
- EPA Section 608 Certification required FEDERALLY for refrigerant handling (all states)
- Complete state HVAC apprenticeship (typically 4 years / 8,000+ hours)
- Pass state HVAC contractor exam
- Submit application with experience verification
- Post contractor bond (if required by state)
Experience and exam
Experience: 4+ years HVAC experience for contractor license
Exam indicated: Yes
Insurance and renewal
Insurance: Liability insurance required for contractors
Renewal: Biennial renewal typical; continuing education required
Local requirements
Wisconsin cities and counties may require additional local permits and business licenses — always check with your local building department.
Common exemptions to verify
- EPA 608 certification has no exemptions for refrigerant work
- Property owners working on their own primary residence
- Minor repairs under typical thresholds