HVAC Contractor

​ Now Live for Trades Credentials!

Alert: Beginning January 8, all initial and reinstatement applications for a Trades credential must be made through LicensE, your online, self-guided licensing platform.

​​​​​​​​​Trades Renewal Message​​

Please renew online at https://appswlp.dsps.wi.gov/SB.CredentialRenewal/app/rstCredentialSearch.  If you are not able to renew online, mail your postcard with a check made payable to DSPS at 4822 Madison Yards Way, Madison, WI 53705.

License Information

Per Wis. Admin. Code § SPS 305.70, no person, entity or business may engage or offer to engage in installing or servicing heating, ventilating or air conditioning equipment unless the person, entity or business holds a registration issued by the Department as a registered HVAC Contractor.

A person, entity or business is not required to hold a registration as a registered HVAC Contractor for the following:

  • To service existing heating, ventilating or air conditioning equipment within facilities or properties owned by the person, entity or business. for electrical or plumbing work associated with the installation or servicing of HVAC equipment or systems;
  • To install or service heating, ventilating, air conditioning, or refrigeration equipment within a dwelling owned by the person, entity, or business and in which the person, entity, or business resides or will reside;
  • For electrical or plumbing work associated with the installation or servicing of the HVAC equipment or systems.

Application Information

3121HVAC Contractor Registration Application Information
​Trades​ LicensE Information

Getting Certified to Work with Lead Based Paint

Training and certification are required for professionals who offer or conduct regulated lead-based paint activities in pre-1978 housing and child-occupied facilities. These activities include:

  • Abatement of Lead Hazards
  • Lead Testing, Inspection, and Risk Assessment
  • Most paint-disturbing renovation work (for example, replacing windows, scraping paint prior to re-painting)
  • Post renovation and post-abatement clearance (including​ dust wipe sampling to measure lead dust left behind)

By getting certified and working safely, you protect your own and others' health, and show professional responsibility. For more information about certification, visit the Wisconsin Department of Health Services​ website.​