Texas · statewide
Water heater replacement in Texas: permits and who may do the work
Updated · Editorial team; not yet technically reviewed
Short answer
Texas lets cities with more than 5,000 residents regulate the installation and inspection of plumbing, explicitly including water heaters, and requires those ordinances to make a permit necessary for anything beyond simple repairs like fixing a leak or replacing a faucet. Water heater replacement isn't on that simple-repair list, so expect a permit in most Texas cities. Homeowners may do plumbing on their own homestead without a license.
What Texas requires or changes
Municipalities with more than 5,000 inhabitants may regulate the material, construction, alteration and inspection of plumbing, including water heaters. [1]
Such an ordinance must require a permit before plumbing work, other than simple repairs such as fixing leaks or replacing faucets, ballcocks, water control valves, garbage disposals or toilets. [1]
A property owner doesn't need a plumbing license to do plumbing in the property owner's homestead. [2]
Simple repair or permitted work?
| Job | Permit in a regulating city? |
|---|---|
| Fixing a leak | No, simple repair |
| Replacing a faucet, ballcock or toilet | No, simple repair |
| Replacing a garbage disposal | No, simple repair |
| Replacing a water heater | Yes, not on the simple-repair list |
| New gas line to a heater | Yes |
Doing it yourself on your homestead
The homestead exemption covers the license, not the permit. A homeowner swapping their own heater in a regulating city still pulls the permit and passes inspection, and must meet the same venting, relief valve and gas connection requirements as a licensed plumber.
City examples
See Houston and Dallas for how two large cities run water heater permits, and how long a water heater lasts.
Common questions
Do Texas cities require a permit to replace a water heater?
Cities over 5,000 that regulate plumbing must require permits beyond simple repairs, and water heater replacement isn't a listed simple repair.
Which plumbing jobs are simple repairs under Texas law?
Fixing leaks and replacing faucets, ballcocks, water control valves, garbage disposals or toilets.
Does the homestead exemption skip the city permit?
No; it waives the license only, so the permit and inspection still apply.
Does the Texas homestead exemption cover rental property?
No; it covers plumbing in the owner's homestead.
Which Texas cities can regulate plumbing?
Municipalities with more than 5,000 inhabitants.
Does Texas law mention water heaters specifically?
Yes; §1301.551 lists water heaters among the fixtures cities may regulate.
Is replacing a toilet in Texas a permitted job?
Replacing a toilet is listed as a simple repair that doesn't need a permit under the statute.
What does a Texas water heater inspection check?
Typically venting, the relief valve and discharge line, gas connections and expansion where required.
Do small Texas towns require water heater permits?
The statute addresses cities over 5,000; smaller towns vary.
Where is the Texas homestead plumbing exemption?
Texas Occupations Code §1301.051.
Water Heater Replacement across Texas
- Water Heater Replacement in HoustonReplacing a water heater in Houston: the required plumbing permit, the registered master plumber rule, permit fees, inspection.
- Water Heater Replacement in DallasReplacing a water heater in Dallas: why a permit is required even for like-for-like swaps, who can obtain it, the homestead homeowner exception, and the inspection.
- Backflow Testing in TexasBackflow testing in Texas: the TCEQ tester license anyone testing or repairing assemblies must hold, test-at-install and annual rules, and gauge accuracy checks.
- Water Heater Replacement: the full guideWhen to replace a water heater instead of repairing it, how tank, tankless and heat pump models compare, and what a proper install includes.
- Plumbing in TexasTexas's plumbing code, licensing, climate and the cities we cover.
The same service in other states
Sources (2)
- Texas Occupations Code §1301.551 · checked 2026-10-03
- Texas Occupations Code §1301.051 · checked 2026-10-03