State registration

Wisconsin HVAC Registration Guide

State registration

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Wisconsin’s Department of Safety and Professional Services requires an HVAC Contractor registration to install or service heating, ventilating or air-conditioning equipment.

The department also offers an individual HVAC Qualifier certification. Registration and qualifier certification are distinct credentials; use the department’s guidance to determine what applies to the business.

Open official registration guidance ↗

Official source: dsps.wi.gov. Retrieved 2026-09-05.

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We do not store or publish licensee records. Information here may be incomplete or out of date, so always confirm requirements with the licensing authority.

Latest source retrieval: 2026-09-05.