General Information

A Warm Air License allows the holder to install any equipment used in an environmental heating system which includes a heating appliance (furnace) and ducts designed to discharge air into a space through a duct system. A Ventilation License allows the holder to install any equipment used in the process of supplying or removing air by natural or mechanical means to or from any space.

Code Requirements

See Chapter 369 of the Saint Paul Legislative Code for information about building trade business licenses.

Application Requirements

You must submit the following:

If you have questions, contact the Warm Air Inspection Department at 651-266-9006, or email the DSI Message Center.

Fees

The annual fee for trade licenses is $188.00 each.

Expiration/Renewal

All Trade Licenses expire on December 1st and may be renewed annually.

Last Edited: October 9, 2023