Mechanical permits

Information on mechanical permits licensed by the City of Minneapolis.

Effective Monday, March 1, 2021, all mechanical permits submitted to the City of Minneapolis must use the new, updated mechanical permit application form (to be posted online on March 1, 2021). Please clear your web browser(s) cache to remove any cookies tied to previous versions of this permit application.

Any older, previous versions will be rejected and a new version will be requested. The updated mechanical permit application form will reflect changes to our mechanical permit review process including information necessary for digital plan review in our Project Dox system.

  • Effective Monday, August 10, 2020, the City of Minneapolis will no longer accept, process, issue or inspect new permit submittals for radon mitigation systems in the City of Minneapolis.

    Due to the resolution of recent legal challenges to State of Minnesota Department of Health requirements, radon mitigation permits must now be requested from the State of Minnesota Health Department.

    Any open permits issued from the City of Minneapolis prior to August 10, 2020 will need to obtain final inspections from city inspection staff.

    For all new residential construction and for additions to residential construction where a radon mitigation system is currently installed, these radon systems will continue to be reviewed and inspected as part of the overall building permit issued for the project – no additional mechanical permit is required.

    Visit the Minnesota Department of Health websites for more information on Radon in HomesRadon Laws, Rules and Standards, and Licensing for Radon Professionals.


Mechanical work includes:  Heating, Air-Conditioning, Ventilation, Refrigeration, Gas Piping 


Existing residential (1 & 2 dwelling)

There are three levels of work that can be done, each with a set fee associated with the work being proposed. Refer to the application for a description of the work covered by each level and complete section 1 on page 2 of the application form. Application can be made by mail, in-person, or online.

New residential construction (1 & 2 dwelling)

If the mechanical work being performed is part of a larger project that increases the square footage of the existing dwelling the applicant must complete section 2 on page 2 of the application form. Plans are required. Applications can be made by mail or in-person.

New or existing commercial or multi-family

Complete bottom portion of Page 2 of the application (titled “Fill out this portion for Commercial & Multi-Family (3+ units) projects). 

Temporary heat

Temporary heat sources will require a separate mechanical permit and shall not be included with other mechanical work being performed. If the proposed work includes BOTH temporary heat sources AND additional mechanical permit work, two (2) separate mechanical permits will be required – one (1) for the temporary heat and one (1) for the other (permanent) mechanical work.

Examples of mechanical work that require a permit

  • Install a heating appliance such as a furnace, boiler, or space heater.
  • Install duct work, radiant heat, in-floor heat, or baseboard heat.
  • Install gas piping for environmental heating appliances (work that includes the installation of gas appliances, other than those providing environmental heat, such as water heaters, fireplaces, ranges, ovens, or laundry dryers must be applied  for with a plumbing permit (BTPA) application).
  • Install air-conditioning
  • Install refrigeration equipment
  • Install high pressure steam or ammonia systems
  • Install radon mitigation systems

This list is not intended as a complete list of work that requires a mechanical permit.  For more information you may consult the Minnesota State Building Code Chapter 1346 or speak with a plan examiner to determine if the work you are proposing requires a permit.  For a list of mechanical work that does not require a permit please refer to (“When Do I NOT Need A Permit”)

Licensing requirements

Most mechanical work is required to be done by a licensed professional Find a Licensed Contractor.  Licensing includes contractor licenses and certificate of competency.

A homeowner that occupies a single-family dwelling may qualify for an exemption to the licensing requirement.  If you meet the requirements of Minneapolis Code of Ordinances Section 85.80 you may be allowed  to perform mechanical work as described in the ordinance. 

Request accessible format

If you need help with this information, please email 311, or call 311 or 612-673-3000.

Please tell us what format you need. It will help us if you say what assistive technology you use.

Contact us

Minneapolis Development Review

Community Planning & Economic Development


Public Service Building
505 Fourth Ave. S., Room 220
Minneapolis, MN 55415

Service Center hours
Monday - Thursday
8:00 a.m. - 4:00 p.m.
9:00 a.m. - 4:00 p.m.