Permit Required? Required
Typical Fee Range $150–$250 Includes a $100 application fee per trade plus individual inspection fees.
Fee Method Flat rate
Apply Online Apply at City of San Antonio Development Services Department →

What's Required in San Antonio

  • Permit required for all system replacements (condenser or air handler).
  • Contractors must have a valid State of Texas ACR license and be registered with the city.
  • Proper secondary drain pan and emergency shut-off required for attic installs.
  • Manual J load calculations required for new system sizing.
  • Duct sealing and insulation must meet current energy code requirements.
  • Final mechanical inspection required upon installation.

How to Get a HVAC Permit in San Antonio

1

Step 1: Contractor Verification

Verify your HVAC technician is registered with the City of San Antonio DSD.

2

Step 2: Trade Permit Application

The contractor submits a Mechanical Permit via BuildSA.

3

Step 3: Issuance

Replacement permits are typically issued instantly after payment of fees ($150+).

4

Step 4: Installation

Perform work ensuring all safety switches and drains are in place.

5

Step 5: Final Inspection

Schedule a mechanical final inspection through the IVR or portal.

Frequently Asked Questions

Yes, replacing an HVAC unit requires a mechanical permit.
Typically $150 to $250 total.
No, state law requires a licensed HVAC technician for refrigerant and high-voltage work.