Low-voltage permits in Texas: the 2026 guide

Texas is one of the friendlier states for low-voltage integrators: a single state license covers most of what we do, and the rules for whether you need a permit on top of that come down to the city or county AHJ. This guide walks through the state license picture, where city permits typically kick in, and the gotchas that cost Texas integrators the most jobs.

The state-level picture

The Texas Department of Licensing and Regulation (TDLR) regulates low-voltage work through two programs most integrators run into: the Electricians program and the Private Security Bureau. The State Fire Marshal's Office at TDI handles fire alarm licensing separately.

• Access control, intrusion, CCTV — Private Security Bureau license. Company license plus individual registrations for installers.
• Fire alarm— State Fire Marshal's Office license (FAL). Separate company and individual licenses.
• Structured cabling for data / voice— generally doesn't trigger electrical licensing if you're not tying into line-voltage, but plan on city permits for commercial cabling in most metros.

When city permits kick in

Texas cities handle permits for low-voltage inconsistently. A few patterns we see over and over:

• Houston — low-voltage permit required for commercial work over a threshold; plan review often required for fire alarm.
• Dallas — Building Inspection requires permits for most commercial access control and fire alarm; residential is lighter.
• Austin— strict on fire alarm plan review; security and access control often don't require a standalone permit if they're part of a TI electrical scope.
• San Antonio — Development Services permits commercial low-voltage systems; inspections required.

The integrator-killing pattern is assuming one city's rules apply in the next one over. They don't. Pull each jurisdiction fresh.

Pulling a permit: what you'll need

Most Texas AHJs will ask for some combination of:

• Company license number (TDLR or SFMO)
• Individual installer license for the lead tech on site
• Plan set — for fire alarm, stamped by a licensed designer
• Contractor registration with the city (separate from the state license)
• Proof of insurance

Common gotchas

• City contractor registration is a separate step from your state license. Miss it and the permit desk turns you away.
• Fire alarm monitoring account must be set up with an approved central station before some cities issue the occupancy sign-off.
• Plan stamps — TX fire alarm plans need a licensed Planning Superintendent or P.E. stamp. Getting caught without one restarts the clock.

How to use LVPermit for Texas jobs

Look up a specific Texas city on our Texas coverage pageto see jurisdiction-level notes, or search by address inside the dashboard. Every Texas jurisdiction record is verified by an integrator who actually pulled a permit there — if something's stale, you can submit an edit in 30 seconds and it's queued for review.

Want to help fill gaps? Submit a jurisdiction. Free Contributor accounts for pros who share verified data.