Texas mechanical / hvac changeout permit application
Nearly every jurisdiction requires a mechanical permit for a condenser, air handler, furnace, or full system changeout — even a like-for-like swap. The application is short, but the equipment data has to match the AHRI-rated combination on the invoice, or the inspector fails the final.
What goes on the Texas version
- Equipment make, model and serial fields for the outdoor and indoor units
- BTU / tonnage and SEER2 or AFUE efficiency rating
- Job address, jurisdiction and property owner details
- Mechanical contractor license, insurance and bond block
Texas is one of our code-tuned states, so the packet builder also flags the state-specific attachments this scope triggers before you file.
Mistakes that get it kicked back
- Listing the outdoor unit only — most inspectors want the matched indoor coil or air handler model as well
- Recording nominal tonnage instead of the rated capacity used for the efficiency certificate
- Filing before the equipment is confirmed in stock, forcing an amended permit when the model changes
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One page: what a Texas building department checks on this document, and the attachments that most often hold up issuance.
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General guidance for Texas contractors, not legal advice. Confirm requirements with the authority having jurisdiction before filing.