UDC Plumbing Inspector

The Electronic Safety and Licensing Application (eSLA) is now live for UDC Plumbing Inspector. Public Lookup is also live for this credential in eSLA.

Every first-time eSLA user must create a new account by clicking one of the two options under the "New Users" heading on the leftOnce you have created your account, you will be able to log in under the "Existing Users" heading on the right. Visit
esla.wi.gov to get started.

License Information

Per Wis. Admin. Code § 305.63, no person may conduct the inspection of one- and two-family dwellings for the purpose of administering and enforcing Wis. Admin. Code § SPS 325, Wis. Admin. Code § SPS 382, and Wis. Admin. Code § SPS 384 unless the person holds a certification issued by the Department as a certified UDC Plumbing Inspector.

A person who inspects one- and two-family dwellings as a certified UDC Plumbing 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.

UDC Plumbing Inspector Online Application via eSLA 

Application for License

3159Application for UDC Plumbing Inspector Certification
3073​Fax Payment Form

Reinstate a UDC Plumbing Inspector Certification that has been Expired more than 4 Years

  1. Complete requirements for the method you are applying under (see Form #3159 for more information).
  2. Submit an application, supporting documentation and fee:
    • Application for UDC Plumbing Inspector Certification (Form #3159)
    • $65.00 total fee ($15.00 application fee, $25.00 exam fee, and $25.00 late renewal fee)

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.