UDC HVAC Inspector

​​​​​​​​​​​​​​​​​​​​ ​The Electronic Safety and Licensing ​Application (eSLA) is now live for UDC HVAC Inspector. Public Lookup is also live for this credential. Visit the Customer Information page for​ instructions on first-time login, and to view the full list of program areas in eSLA. ​​​​

                                Go to esla.wi.gov​​​​ ​​to get started​.​

License Information

Per Wis. Admin. Code § SPS 305.63, no person may conduct the inspection of one- and two-family dwellings for the purpose of administering and enforcing Wis. Admin. Code ch. SPS 323 unless the person holds a certification issued by the Department as a certified UDC HVAC Inspector. A person who inspects one- and two-family dwellings as a certified UDC HVAC Inspector shall:

  • Maintain a record of the inspections made including the dates and the findings of the inspections;
  • Provide a copy of the inspection report to the property owner or his or her agent;
  • Make available to the Department upon request his or her inspection records.

Application for License

Application for UDC HVAC Inspector Certification
3073​Trades Payment Form
Reinstate a UDC HVAC Inspector Certification that has been Expired more than 4 Years
  1. Complete requirements for the method you are applying under (see Form 3157 for more information).
  2. Submit an application, supporting documentation and fee:
    • Application for UDC HVAC Inspector Certification (Form 3157)
    • See Form 3157 for total fee for the method you are applying under

Renewal Information


Renewal Methods

Department of Safety and Professional Services

Trades Credentialing Unit
PO Box 78780
Milwaukee, WI  53293-0780


If you have questions regarding your renewal, please email DSPSCredTrades@wisconsin.gov.

When mailing your renewal, please allow up to 21 calendar days [per Wis. Admin. Code §  SPS​ 305.04 (1)] from the date your payment is processed to receive an update regarding your renewal. ​