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Quick Answer Gas line plumbing in Boerne, TX must be performed by a Texas licensed plumber with gas certification. Homeowners should call a gas line plumber for any suspected gas leak, new gas appliance install, gas line extension, water heater conversion, or visible damage to existing lines. If you smell gas, leave the home immediately, call 911 or your gas provider, and only return after a licensed plumber confirms it is safe.


Gas line work is one of the most safety critical jobs in a home. Done right, it lasts decades without issue. Done wrong, it causes fires, explosions, or carbon monoxide poisoning. Boerne and Fair Oaks Ranch homeowners should never treat gas line work as a DIY project. Here is what to know about gas line plumbing in 2026, when to call a licensed plumber, and what the work involves.

What a Gas Line Plumber Does

A gas line plumber handles the full scope of natural gas and propane plumbing in residential and commercial buildings. This includes new line installation, line extensions for added appliances, leak detection and repair, line replacement, pressure testing, and conversions between fuel types.

In Texas, gas line work must be performed by a plumber licensed by the Texas State Board of Plumbing Examiners with appropriate gas endorsements. Unlicensed gas work is illegal and dangerous.

Common Gas Line Services for Boerne Homes

Several gas line services come up regularly in Hill Country homes.

Gas leak detection and repair. Suspected leaks are confirmed with electronic detection equipment, soap test, or pressure testing. Repairs range from simple fitting replacement to full line section replacement.

New gas appliance install. Adding a gas range, dryer, water heater, fireplace, or outdoor grill often requires extending or splitting an existing line.

Gas water heater install or replacement. Water heater swaps that involve line modifications need a gas line plumber. Our water heater repair and installation page covers the full scope, and our tankless water heater page covers gas tankless conversions.

Pool heater and outdoor kitchen lines. Outdoor gas lines require dedicated routing, code compliant materials, and proper protection from weather and impact.

Generator gas line connection. Whole house standby generators need a properly sized gas line and meter capacity to function.

Sediment trap and drip leg replacement. Required code components that are sometimes missing on older installations.

Warning Signs of a Gas Leak

Knowing the warning signs of a gas leak can save your life.

The unmistakable smell of rotten eggs, which is mercaptan added to natural gas to make it detectable. Hissing sounds near gas lines or appliances. Dead vegetation in a line of sight that follows a buried gas line. Bubbles in standing water near a buried line. Higher than normal gas bills with no usage change. Flickering, weak, or yellow appliance flames (instead of clean blue). Headaches, dizziness, or nausea that improves when you leave the home.

If you suspect a gas leak, leave the home immediately. Do not turn lights on or off, do not use a phone inside, do not start vehicles in attached garages. Once outside, call 911 or your gas provider. Only return when a licensed plumber and the gas company confirm it is safe.

What to Do If You Smell Gas

The standard safety protocol is well established and worth memorizing.

  1. Leave the home immediately. Take everyone with you.
  2. Do not operate any electrical switches or use phones inside.
  3. Do not light matches, candles, or any flame.
  4. From outside, call 911 or your gas company.
  5. Do not return until cleared by emergency personnel.
  6. Schedule a licensed gas line plumber for repair.

The U.S. Pipeline and Hazardous Materials Safety Administration publishes excellent public safety information at rrc.texas.gov, worth bookmarking.

Gas Line Pressure Testing

Anytime new gas line work is performed, code requires a pressure test before the line is put back into service. The test confirms the system holds pressure without dropping over a set time, indicating no leaks. A gas line plumber performs this test as a standard part of any install or repair, and most jurisdictions require an inspection sign off.

For homes with aging or unknown gas line conditions, a pressure test alone can identify whether existing lines are tight.

Gas Line Materials in Boerne Homes

Several materials show up in Boerne gas lines.

Black iron pipe. The traditional standard for residential gas. Durable and serviceable but rusts over time, especially at threaded joints.

CSST (corrugated stainless steel tubing). A flexible, easier to install option used widely since the 1990s. Some early installations had issues with lightning strike vulnerability, addressed by improved bonding requirements in newer code.

Copper. Used for some propane installations but generally not natural gas in modern code.

Polyethylene. Used for buried lines, especially long runs to outbuildings or pool heaters.

A gas line plumber selects the correct material based on application, code requirements, and local conditions.

Gas Line Issues Specific to Hill Country Homes

Boerne and Fair Oaks Ranch homes face a few specific gas line considerations.

Outbuildings and pool heaters. Many properties have detached gas appliances requiring buried line runs. These need proper depth, marking tape, and pressure rated materials.

Propane systems. Properties outside natural gas service areas often use propane. The connection between the tank and the home, and the distribution inside, all require specific expertise.

Lightning bonding. CSST installations require proper bonding to electrical ground systems to prevent lightning strike damage. Older installations may need retrofit.

Multi appliance load. Adding a generator or upgrading to a tankless water heater can exceed the capacity of an existing gas line. Proper sizing is critical.

Cost of Gas Line Work in Boerne

Gas line repair and installation costs vary significantly by scope.

A simple line repair typically runs $300 to $750. A new line extension to add an appliance runs $500 to $2,500. A gas water heater install with line modifications runs $1,800 to $3,500. A whole home gas line replacement can run $4,000 to $10,000 or more.

Pressure testing and permitting are typically included. For broader plumbing pricing context, see our Boerne plumber cost guide for 2026.

Coordinating Gas Line Work With Other Plumbing

Gas line work often comes up alongside other plumbing projects. If you are planning a tankless water heater conversion, a whole house repipe, or bathroom plumbing repair with a layout change, factor in gas line modifications during the same project to save on access and labor.

Schedule a Licensed Gas Line Plumber in Boerne

Pulliam Plumbing handles gas line plumbing across Boerne and Fair Oaks Ranch, from leak repair and pressure testing to new appliance hookups and whole house line replacement. We are Texas licensed, fully insured, and pull all required permits. Contact Pulliam Plumbing for safe, code compliant gas line service.