Where does Texas electrical code require GFCI outlets?

Texas adopts the National Electrical Code (NEC) with city-specific amendments. GFCI is required at: bathrooms, kitchens (countertop and within 6 ft of sink), garages, basements, outdoors, laundry, dishwasher, near pools and hot tubs, crawl spaces, and unfinished accessory dwellings. Cities adopt new NEC editions on different schedules, so the exact list depends on when your home was permitted.

What does it cost to add or replace a GFCI outlet in Texas?

Replacing an existing outlet with a GFCI runs $125–$250 per outlet by a licensed Texas electrician (TDLR licensed) in 2026, including the device. Adding a new GFCI on a new circuit runs $300–$650 depending on accessibility. Several outlets in one visit get bundled pricing.

Why does my GFCI keep tripping?

Three common Texas causes: (1) moisture in an outdoor box (pool deck or hose-bib outlet) — the box needs an in-use weatherproof cover, (2) a downstream device drawing leakage current — disconnect things one by one to identify, (3) the GFCI itself failed (lifespan ~10 years; older units fail more often). If a GFCI won't reset with everything unplugged, it's almost always a bad GFCI or moisture in the box.

Can I install a GFCI myself in Texas?

A homeowner can do work on their primary residence with proper permits, but Texas requires licensed electrical contractors for any work performed for compensation. Cities require electrical permits for new circuit installs and may require them for changeouts. Always shut off the breaker, test the outlet is dead, and consider a TDLR-licensed electrician if you're unsure — bad GFCI installs are a common house fire cause.

Electrical · Code · Updated April 2026

GFCI outlets in your Texas home: where they're required, what they cost, and the trip you keep getting

GFCI outlets are the single most effective electrical safety device in your home — they trip in milliseconds when current leaks to ground, preventing electrocution. Here's where Texas code requires them, what they cost, and why the one in your garage won't stop tripping.

Where Texas code requires GFCI

Texas adopts the National Electrical Code with city-specific amendments. As of NEC 2023 (which most major Texas cities have adopted by 2026), GFCI is required at:

Bathrooms — every receptacle
Kitchens — all countertop receptacles, dishwasher, refrigerator (newer code)
Garages and accessory buildings — every receptacle
Outdoors — every receptacle
Laundry rooms — receptacles within 6 ft of a sink, plus the washer outlet
Crawl spaces, basements, unfinished spaces
Pool, spa, and fountain equipment within 20 ft
Boathouses, docks, and within 6 ft of any other sink

The exact list at your home depends on when it was last permitted. Older Texas homes (pre-1990) often have no GFCI in garages or outdoors and an upgrade is the single best electrical safety investment available.

GFCI vs AFCI vs dual-function

GFCI (ground-fault circuit-interrupter): trips when current leaks to ground (as through a person). Required in wet locations.
AFCI (arc-fault circuit-interrupter): trips when it detects an electrical arc — preventing fires from frayed cords or loose terminations. Required in living spaces by recent code.
Dual-function: combines both in one device. The current best-practice standard for most living-area circuits.

Cost of adding GFCI in 2026 Texas

Replace existing outlet with GFCI: $125–$250 each
Bundle of 6+ replacements in one visit: $90–$160 each
New outdoor GFCI on existing circuit: $200–$450
New GFCI on new dedicated circuit: $300–$650
Whole-home upgrade (12+ devices): $1,500–$3,000

Pricing varies by metro and city permit fee. Houston and DFW are generally similar; Austin runs slightly higher per-outlet because of permit and trip-charge structure.

The trip you can't reset

A GFCI that won't reset is telling you something specific. Diagnose in this order:

Unplug everything downstream. A single device with internal ground leakage will keep tripping a GFCI. Unplug all loads on the protected circuit. Try to reset.
Check for moisture. Outdoor boxes need an in-use weatherproof cover. Pool deck and hose-bib outlets get water in the box during rain. Open the cover, dry the box, try again.
Test the GFCI itself. Most have TEST and RESET buttons. Press TEST — RESET should pop out. If TEST doesn't trip the device, it has failed.
Check the load wires. If a downstream outlet was wired to the LOAD terminals of the GFCI (instead of LINE), reverse polarity at any of those outlets will trip the GFCI. This is wiring, not load.
Replace the GFCI. They wear out after about 10 years, especially in hot Texas garages and outdoor boxes. A new GFCI is $25–$45 at any home center; the trip resolves immediately.

Test your GFCIs every month

GFCI outlets fail silently. They keep working as a regular outlet but stop providing the safety function. Press the TEST button on every GFCI in your home once a month — the RESET button should pop out and the outlet should die. If it doesn't, replace it.

Bonus: pool / hot tub GFCI rules

Texas pool and spa wiring has its own NEC article (Article 680). Highlights for homeowners:

Receptacles within 20 ft of pool edge must be GFCI
Pool pump motor circuit must be GFCI as of NEC 2017+
Cord-and-plug spas (110V or 240V) all require GFCI
Bonding grid for the pool deck and equipment is required and inspected — cosmetic-only deck rebuilds don't need bonding redo, but anything touching the bonding wire does