Permit Required? Required
Typical Fee Range $150–$300 A $105 base fee plus surcharges; applies to A/C condensers and air handler replacements.
Fee Method Flat rate
Apply Online Apply at City of Miami Building Department →

What's Required in Miami

  • A permit is required for any replacement of an air conditioning system or furnace.
  • Exterior condenser units must be anchored to meet HVHZ wind-load requirements (175+ mph).
  • Must follow 2026 Florida energy efficiency standards for SEER/EER ratings.
  • A recorded Notice of Commencement (NOC) is required if the system costs more than $15,000.
  • Replacement ductwork must be inspected for leakage and proper insulation (R-value).
  • Proper secondary drain pans and safety switches are mandatory for attic installations.

Do You Need a Permit to Replace an AC or Furnace in Miami?

Yes. Miami treats HVAC replacement as permit-required work, and that includes the common case people hope is exempt: a like-for-like swap of a furnace, AC condenser, or heat pump in the same location. Permit fees typically run $150–$300, and the permit is issued by the City of Miami Building Department. In practice your HVAC contractor pulls it as part of the job — if a bid doesn't mention the permit, ask why, because unpermitted mechanical work surfaces at home sale time and in insurance claims.

HVAC Repairs vs. Replacement: Where the Permit Line Falls

The line falls at equipment, not maintenance. Repairs that keep an existing system running — a blower motor, capacitor, control board, or a thermostat swap on existing wiring — generally don't need a permit. Replacing the equipment itself, adding or reworking ductwork, or running new gas or electrical almost always does. Refrigerant-line and coil replacements sit in the gray zone and vary by city. When the scope is unclear, describe the exact job to the City of Miami Building Department before work starts; it's a five-minute call.

How to Get a HVAC Permit in Miami

1

Step 1: Verify Equipment Ratings

Ensure the new unit meets current 2026 Florida Building Code efficiency minimums.

2

Step 2: iBuild Application

Submit a 'Mechanical' permit request online via the City portal.

3

Step 3: Fee Payment

Pay the $105 unit fee plus valuation surcharges and admin fees.

4

Step 4: Installation

Install the unit ensuring proper wind anchoring for the exterior condenser.

5

Step 5: Inspection

Schedule a final mechanical inspection to verify safety controls and operation.

Frequently Asked Questions

Only if the total project cost is greater than $15,000.
Standard residential unit replacements typically cost between $150 and $250 total.
No, Florida requires a licensed HVAC contractor for all refrigerant-related work.
Adding or altering ductwork is mechanical work that typically requires a permit in Miami. Confirm the scope with the City of Miami Building Department before starting.