What's Required in Minneapolis
- A mechanical permit is required for heating, air conditioning, ventilation, refrigeration and gas piping work.
- Portable units and self-contained systems with ten pounds or less of refrigerant are exempt.
- Existing one- and two-family homes pay a flat Level 1, 2 or 3 fee plus a $1 state surcharge.
- Mechanical work requires a city contractor license and certificate of competency unless the owner exemption applies.
- Owners may not work on gas-fired heating equipment; gas piping and venting need a licensed gas installer.
- Concealed and attic installations need a rough-in inspection before ducts are insulated.
- New fuel-burning equipment needs an ORSAT heat test record, heat loss calculation and operating manual on site.
- Outdoor HVAC equipment in a required yard must be 5 feet tall or less and at least 2 feet from an interior side lot line.
Do you need a permit to replace a furnace or AC in Minneapolis?
Yes. The city says a mechanical permit is required to legally perform HVAC work, and most heating, air conditioning, ventilation, refrigeration and gas piping work requires one. Minnesota Rules 1300.0120 exempts only small items: portable heating, cooling and ventilation appliances, replacement of a part that does not alter the equipment's approval, and self-contained refrigeration systems with ten pounds or less of refrigerant or motors of one horsepower or less, such as a window air conditioner. Replacing a furnace, boiler, central AC condenser or heat pump is permitted work.
How much does an HVAC permit cost in Minneapolis?
For an existing one- or two-family home Minneapolis uses three flat fee levels, each plus a $1 state surcharge. The city's mechanical application says what goes in each level.
- Level 1, $84.20 + $1 = $85.20: miscellaneous HVAC work with no burner, including an A/C or heat pump add-on or replacement, bath fans, kitchen vents, dryer vents, air cleaners, humidifiers and gas piping.
- Level 2, $132.40 + $1 = $133.40: changing out a boiler or furnace, or adding or replacing a space heating unit, plus any Level 1 items.
- Level 3, $216.60 + $1 = $217.60: removing the existing heating, cooling and ventilation system and installing a new one, extending the system into unconditioned space, or seven or more supply or return openings.
So a furnace and AC swapped together is Level 2 at $133.40, because Level 2 includes Level 1 work. New homes and additions are priced differently: 1.99% of the mechanical contract value, with an $84.20 minimum.
| What you are doing | City filing | Rule |
|---|---|---|
| Window AC or portable heater | No permit | Portable and self-contained units exempt |
| Replacing a capacitor, motor or control board | No permit | Part does not alter equipment approval |
| Replacing a central AC condenser or heat pump | Mechanical permit, Level 1 | $84.20 + $1 surcharge |
| Replacing a furnace or boiler | Mechanical permit, Level 2 | $132.40 + $1; gas venting by a licensed gas installer |
| Whole new heating and cooling system | Mechanical permit, Level 3 | $216.60 + $1 |
| Adding a bath fan or kitchen vent | Mechanical permit, Level 1 | $84.20 + $1 |
| Outdoor condenser in a required yard | Zoning rule | 5 ft tall max, 2 ft from an interior side lot line |
Who can pull an HVAC permit in Minneapolis?
Mechanical work requires city-issued contractor licenses and certificates of competency, so most permits are pulled by a city-licensed mechanical contractor; pre-approved licensed contractors can use the city's express permit tool for HVAC systems and components on existing one- or two-family homes. An owner who lives in a single-family home can do their own mechanical work under the license exemption in Section 85.80, but the city says owners are not allowed to work on gas-fired heating equipment, and the mechanical application requires all gas piping and gas venting for heating appliances to be done by a licensed gas installer on a separate permit.
What do Minneapolis mechanical inspectors check?
A rough-in inspection is required on concealed mechanical work and on attic installations before ducts are insulated, with duct blaster test results from the applicant. When new gas, oil or other fuel-burning equipment is installed, a completed heat test record (ORSAT test) with the installer's name and competency card number, a heat loss calculation and the operating manual must be on hand. On a complete system replacement in an older home the inspector may first check the old heating plant for asbestos; inspections stop until any required abatement is done. Homeowners may schedule and meet the inspector on most projects.
How to Get a HVAC Permit in Minneapolis
Pick the fee level
Match the job to Level 1, 2 or 3 on the city's mechanical permit application for existing one- and two-family homes.
Email the mechanical application
Send the completed application to [email protected]; licensed contractors may use the express permit tool instead.
Arrange gas work
If gas piping or venting is involved, a licensed gas installer files the separate permit before the mechanical permit is issued.
Pay and install
Pay the flat fee and $1 surcharge, then install to the Minnesota Mechanical and Fuel Gas Code.
Pass inspections
Call for rough-in before concealing work and a final inspection, with the ORSAT record and heat loss calculation on site.