Gas Line Repair and Installation Cost in Texas (2026)
Most Texas homes with natural gas use it for the furnace, water heater, range or dryer, and more owners are adding lines for outdoor kitchens and standby generators. A small leak at a fitting can cost a few hundred dollars. A buried line under a driveway or a full replacement can cost thousands. Below are 2026 ranges from Texas plumbing companies in Dallas, Plano and Fort Worth, checked against national cost data. Treat them as a sanity check, not a quote.
| Job | Typical cost |
|---|---|
| Gas leak detection only | $100–$300 Fort Worth [6]; $250–$450 Plano [5] |
| Minor repair at an accessible joint or connector | $150–$400 Fort Worth [6]; $250–$800 DFW [4]; $400–$1,200 Plano [5] |
| Buried line or multiple leaks | $800–$2,500 DFW [4]; $1,200–$3,500 Plano [5]; $500–$1,950 major repair, Fort Worth [6] |
| Gas line repair, national average | $598 average; most pay $272–$936 [1] |
| New line, per foot installed | $15–$25 per ft [2][3]; complex runs $35–$50+ per ft [3] |
| New line for one appliance (indoors) | $400–$1,500 Plano [5]; extending an existing line $350–$800 [3] |
| Generator gas hookup | $800–$2,500 Plano [5] |
| New service line from the street | $2,000–$10,000+ [3] |
| Whole-house gas line replacement | $2,950–$7,850 Fort Worth [6]; $3,500–$10,000+ Plano [5] |
| Pressure test | $75–$500 national [1]; $200–$400 after a utility shutoff, Plano [5] |
| Permits and inspection | $50–$300 [1]; $100–$300 [2] |
| Cap an unused line | $75–$150 [1] |
Where the sources disagree
Minor repair quotes in North Texas range from $150 [6] to $1,200 [5]. The Plano company's prices include more of the job, such as testing and restoring service, while the low Fort Worth figure is a basic fix. Pressure tests show the same pattern. The national range starts at $75 [1], but a Plano plumber lists $200–$400 when the utility has already shut off the meter [5]. Before you compare totals, ask each plumber whether the test, permit and relighting appliances are included.
What moves the price
- Access. A leak at an exposed fitting is quick. A line under a slab, driveway or landscaping must be found and dug up, which can push repairs into the thousands [1][4].
- Length and turns. New lines are priced by the foot, and each turn adds fittings and labor [2][3].
- Trenching. Outdoor runs to a grill, pool heater or generator add about $4–$12 per foot for trenching [2].
- Sizing. Adding a big appliance like a tankless water heater can require upsizing the line, about $400–$1,500 in Plano [5].
- Labor rate. Master plumbers and gas specialists bill about $45–$150 an hour [1].
Practical tips
- If you smell gas, leave the house first and call your gas utility or 911 from outside. Pricing can wait.
- In Texas, gas line work must be done by a licensed plumber, with no homeowner exemption [5][6]. See how to check a Texas contractor license.
- Get a written quote that lists the permit, pressure test and any drywall or concrete patching. Restoration can add $270–$5,000 [1].
- Switching to a gas tank or tankless heater? Compare with our water heater replacement cost guide. If old piping is failing throughout the house, see whole-house repipe cost.
Sources
- Angi, Gas Line Repair and Replacement Costs (updated Sep 2026)
- Angi, How Much Do Gas Line Installation or Repairs Cost? (updated Aug 2026)
- HomeGuide, How Much Does Gas Line Installation Cost? (2026)
- Titan Plumbing & Gas, Gas Line Repair in Dallas, TX (2026)
- Staggs Plumbing, What Gas Line Work Costs in Plano (2026)
- RateYourPlumber, Gas Line Repair in Fort Worth, Texas (2026)
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