You can do some electrical, plumbing and air-conditioning work on your Texas home without the usual state trade credentials, with different conditions for each1. For electrical work on a new Texas home, you must own and live in the dwelling to qualify1. You still need any required local building permits and inspections1.
What does the Texas owner-builder exemption cover?
Texas homeowner exemptions cover specific trades, with conditions tied to your residence.
Texas homeowner exemptions cover specific trades, with conditions tied to your residence1. For electrical work, you must own and live in the dwelling1. Plumbing work must be in your homestead, and the air-conditioning registration exemption covers a building owned solely by you as your home1. These Texas exemptions do not give you permission for every activity regulated by contractor rules1.
List the work you want to manage and the tasks you want to do yourself. Ask the local building office which homeowner applications cover each task. Explain whether you are building on vacant land, adding to an occupied home, or installing a modular home. Get the office’s answer before you budget for doing your own trade work.
Can you wire a new Texas house yourself?
To qualify for the Texas electrical exemption, you must own and live in the dwelling.
To qualify for the Texas electrical exemption, you must own and live in the dwelling1. Owning the land alone does not meet that condition1. For a house you have not lived in, ask TDLR’s Electricians Program how the residence condition applies to your construction plans1. Explain where you live now and when you expect to move into the new house.
Municipal or regional rules can override the Texas electrical exemption1. You still need any required local building permits and inspections1. Before you schedule wiring work, ask the local electrical inspection office whether you can get an electrical permit as the homeowner.
Can you do your own plumbing and air-conditioning work in Texas?
You do not need a Texas plumbing license to do plumbing in your own homestead.
You do not need a Texas plumbing license to do plumbing in your own homestead1. Before doing plumbing in a proposed house, ask the Texas State Board of Plumbing Examiners how the homestead condition applies4. Describe your Texas project as new construction, rather than asking only about homeowner repairs.
For the Texas air-conditioning registration exemption, the building must be owned solely by you as your home1. TDLR says you still need municipal approval for any required building permits, inspections or other approvals5. Ask TDLR’s air-conditioning program which credentials your planned work needs, then ask the local building office about its homeowner application5.
Does installing your own modular home need a different approval?
Texas offers an installation permit instead of industrialized-builder registration if you buy or lease industrialized housing for your own use.
Texas offers an installation permit instead of industrialized-builder registration if you buy or lease industrialized housing for your own use2. You pay $75 for the state installation permit for each building containing industrialized-housing modules or modular components3. That fee applies to this Texas program; it does not cover an ordinary site-built home exemption3.
If your municipality regulates installation, you can still need local building permits and licenses before construction begins2. Texas’s industrialized-housing code adoption covers the program’s buildings, modules and modular components6. You cannot use that program’s code list as the answer for every site-built Texas house6. Ask TDLR’s Industrialized Housing and Buildings program which route fits the unit you plan to buy.
What should you confirm before building your own Texas home?
You still need required local building permits and inspections under the Texas homeowner electrical exemption.
You still need required local building permits and inspections under the Texas homeowner electrical exemption1. Give the local building office your parcel address and a description of the house. Ask for the building permit checklist, inspection stages, homeowner eligibility requirements and current fees. Ask who must apply for each trade permit.
For septic approval in Texas, you need an OSSF permit and approved plan unless a specific exemption applies7. Local governments often handle septic approvals as TCEQ-authorized agents7. TCEQ’s regional office handles locations without an authorized local jurisdiction7. Ask the septic authority to review your planned house location before you settle on a layout. Keep the building office’s instructions with the answers from the Texas trade agencies.
Watch-outs
- You must own and live in the dwelling to qualify for the Texas electrical exemption1.
- You still need required local building permits and inspections under a Texas homeowner trade exemption1.
- Your county’s conditional requirements can cover floodplain development without requiring a general residential building permit8.
- The Texas industrialized-housing installation permit replaces industrialized-builder registration; it does not approve all home construction2.
Sources
8 official pages, each quoted and re-checked · written November 5, 2026
- Texas: Exemptions to Electrician Licensing
- Texas: tdlr.texas.gov
- Texas: Texas Department of Licensing and Regulation: Industrialized Housing and Buildings Fee Schedule
- Texas State Board of Plumbing Examiners (tsbpe.texas.gov)
- Texas Department of Licensing and Regulation — Air Conditioning and Refrigeration Contractors (tdlr.texas.gov)
- Texas: Industrialized Housing and Buildings – Adoption of New Code Editions
- Texas: Getting a Permit for an OSSF - Such as a Septic System
- Bolthole Index county rulebook, 254 Texas counties, as of November 13, 2026: Texas counties that require a residential building permit only in some cases (for example floodplain or certain structures)
Written November 5, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.