Permit GuideAustin, TX · 2025
Plumbing Permit Guide in Austin, TX
When plumbing permits are required, what inspections to expect, and how to protect your home.
Typical permit cost: $100–$400
Processing time: 1–3 business days
Licensed contractor required: Yes
When a Permit IS Required
- New plumbing rough-in (adding supply or drain lines)
- Water heater replacement
- Sewer line repair or replacement
- Adding a bathroom or laundry room
- Gas line installation or modification
- Water service line replacement
When a Permit is NOT Required
- Replacing a faucet or toilet in the same location
- Unclogging drains
- Replacing a showerhead
- Minor fixture repairs
* Permit requirements vary by jurisdiction. When in doubt, contact the Austin building department to confirm.
How to Get a Plumbing Permit in Austin
- 1
Licensed plumber submits permit application
- 2
Building department reviews — often same-day for standard work
- 3
Permit issued and posted at job site
- 4
Rough-in inspection before walls are closed
- 5
Final inspection after all fixtures are installed
Required Inspections
- Rough-in inspection (before walls are closed)
- Water pressure test
- Final inspection
Consequences of Skipping a Permit
- Leaks and water damage not covered by insurance
- Required to open walls and redo unpermitted work
- Health hazards from improper drain/vent installation
- Fines from building department
- Disclosure required when selling
Verify Your Contractor's License in TX
Before any permitted work begins, verify your contractor holds an active TX license. Licensed contractors are authorized to pull permits — unlicensed contractors cannot.
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Licensed plumbing contractors in Austin handle permits for you.
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