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HVAC in Texas

Permits

HVACFIND data deskSeptember 2026 · 3 min

HVAC permits in Texas

When a permit is needed to replace a furnace, AC or heat pump in Texas, what it costs by city, and who pulls it.

Do you need a permit?

Permit rules in Texas are set by each city or county. ICC chart (Jan 2024) lists IRC 2012, but local enforcement is optional or partial in parts of the state (background knowledge; confirm). IRC R105.1 requires a permit to install or replace mechanical equipment; R105.2 exempts only portable units and minor parts (https://codes.iccsafe.org/content/IRC2021P2/chapter-1-scope-and-administration). State default fee not set: fees are set by local jurisdictions (see city rows). The IRC applies in municipalities (listed as 2012 in the chart; cities adopt newer editions); unincorporated county areas generally have no residential permits. Homeowner permits: Texas Occupations Code ch. 1302 homeowner (own homestead) exemption (statute from background knowledge, not re-read; usually limited to owner-occupied homes).

Why it matters

  • An inspection catches unsafe gas, venting and electrical work.
  • Unpermitted work can void equipment warranties and complicate a home sale.
  • Some rebates require proof of a permit.

Typical fees by city

CityTypical permit fee
HoustonVaries
AustinVaries
San AntonioVaries
DallasVaries
Fort WorthVaries
El PasoVaries

Sources

  • Texas (state) — https://www.iccsafe.org/wp-content/uploads/Master-I-Code-Adoption-Chart-Jan-2023.pdf
  • Houston — https://www.houstonpermittingcenter.org/hpwcode1019
  • Austin — https://www.austintexas.gov/development-services/work-exempt-building-permits
  • San Antonio — https://docsonline.sanantonio.gov/FileUploads/dsd/DSD_Mechanical_Application.pdf
  • Dallas — https://dallascityhall.com/departments/sustainabledevelopment/buildinginspection/Pages/default.aspx
  • Fort Worth — https://www.fortworthtexas.gov/departments/development-services
  • El Paso — https://www.elpasotexas.gov/planning-and-inspections

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