Gas Line Repair & Installation in Phoenix, AZ.

What Causes Gas Leaks in Your Home?

Knowing the common causes can help you prevent bigger problems and keep your home safe:

Corroded or Aging Gas Lines

Pipes can wear out over time, especially in older homes. Rust, cracks, or weak spots often lead to unnoticed slow leaks.

Faulty Appliance Connections

Loose fittings or damaged seals on appliances like stoves, dryers, or water heaters can cause gas to escape from your home.

Poor Installations or Repairs

Work done by unqualified individuals often skips critical safety steps, resulting in unsafe connections or mismatched pipe sizes.

Shifting Soil or Home Foundation

Underground gas lines may crack or disconnect if your foundation shifts or the soil around your home moves after heavy rain or construction.

Rodent or Pest Damage

Sometimes, pests can chew through flexible gas lines, especially in attics or crawl spaces where the lines are exposed.

How is a new gas line installed, step by step?

1. Plan the load. We add up the appliances the line will feed and size the pipe to the total demand.
2. Permit. We tell you what your city or town requires and what inspections apply.
3. Mark utilities. Before any trenching, buried utilities are marked through Arizona 811.
4. Run the pipe. We run the line indoors or in a trench. Phoenix soil often includes hard caliche, which affects how a trench is dug.
5. Connect the appliance. We add a shutoff valve and an approved connector at each appliance.
6. Pressure test and inspect. We test the line before gas is turned on, and the city inspects where a permit is required.

Do I need a permit for gas line work?

In most Phoenix-area cities, yes. Both new gas lines and repairs that replace piping normally require a permit, a pressure test, and an inspection. Arizona requires gas piping to be done by a licensed contractor. Rules vary by city, so we confirm yours.

When do I need a new or larger gas line?

• You are adding an outdoor kitchen, grill, fire pit, or pool heater.
• You are switching from electric to gas for a range or dryer.
• You are installing a tankless unit, which can need more gas capacity than a tank heater. See our water heater installation page.
• An older line is rusted or an appliance connector is worn.

How do I know if I have a gas leak?

Signs include a rotten egg smell, a hissing sound near a line or appliance, dead plants above a buried line, and an unexplained rise in your gas bill. If you smell gas, leave the house first, then call 911 or Southwest Gas. Once it is safe, our gas leak detection team finds the source. For after-hours problems, use our emergency plumbing line.