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Leak repair, new lines and appliance hookups

Gas Line Installation & Repair in Denton, TX

A gas smell near an appliance, a new range, a generator or an outdoor kitchen. Gas line installation and repair in Denton, TX is done by licensed plumbers and pressure-tested before anything is lit. If you smell gas right now, leave the house first.

Gas line and shutoff valve installation in Denton, TX

Smell gas? What to do first

Natural gas has a rotten-egg odor added so leaks can be noticed. If you smell it:

  • Do not flip light switches, use a phone inside, or start a car in an attached garage.
  • Get everyone out of the house and leave the door open behind you.
  • From outside, call Atmos Energy's emergency line or 911.
  • Do not go back inside until the utility or fire department says it is safe.
  • Once the utility has shut off gas to a leaking line, call a plumber to make the repair.

The utility handles leaks at the meter and in its own lines. Leaks in the piping after the meter are the owner's responsibility and need a licensed plumber.

Who can work on gas lines in Texas

Gas line installation and repair covers the piping that carries natural gas from the meter to appliances such as water heaters, furnaces, ranges, dryers and fireplaces. In Texas, this is plumbing work regulated by the Texas State Board of Plumbing Examiners.

Inside Denton city limits, new gas piping and major repairs typically need a permit and a pressure test that the inspector checks before the line is put into service. That test confirms the line holds pressure with no drop over a set period.

The detailed rules for sizing, materials and testing gas piping are in the International Fuel Gas Code, the companion to the 2021 International Plumbing Code (IPC) the City adopted in 2022. This is why a handyman should not run gas lines. A licensed plumber carries the responsibility for the test and the inspection, and you can check any plumber's license on the TSBPE website.

Common gas line jobs

Here is what gets requested most often.

Every new or repaired line is pressure-tested before gas is turned back on.
JobWhat it involves
Leak repair.Finding the leak with a detector and soap test, replacing the failed fitting or section, retesting.
Range or dryer hookup.New shutoff valve and approved flexible connector at the appliance.
Tankless water heater line.Often a larger line, since tankless units need more gas at full fire.
Generator or outdoor kitchen.New branch line, sized for the added load, often run outdoors or underground.
Old line replacement.Replacing corroded black iron or outdated connectors.

If you are converting to tankless, the gas line is often the deciding cost. The water heater installation page covers the rest of that decision.

Sizing a line for new appliances

A gas line is sized for the total demand of every appliance on it, plus the distance from the meter. Adding a tankless water heater, a large range and an outdoor grill to a line sized decades ago for one furnace and one tank often leaves appliances short of gas when several run at once.

Symptoms of an undersized line include a burner flame that drops when another appliance starts, or a tankless heater that throws errors under heavy use. The fix is resizing the branch or running a new one from the meter.

Ground movement in Denton's clay can also stress buried gas lines to detached garages and outdoor kitchens. Corrugated stainless steel tubing and approved plastic underground line handle movement better than older rigid pipe. Any search for a hidden leak that turns up a gas smell becomes a gas repair.

What gas line work costs depend on

These factors decide the price.

  • Length of the run and where it goes: through an attic, under a slab or underground outdoors.
  • Line size needed for the added appliance load.
  • Permit, inspection and pressure testing.
  • Wall, ceiling or concrete access needed.
  • Emergency timing, if a leak has shut off gas to the house.

Planned gas line estimates are free. Emergency repairs are priced before work begins.

Get a gas line price: (940) 229-7314

Gas line questions

Atmos Energy can shut off gas at the meter. After that, a licensed plumber finds and repairs the leak in your piping, and the line is tested before service is restored.

A licensed plumber is the safer choice, especially if a new valve or connector is needed. A leak at a range connection is one of the most common gas problems in kitchens.

New gas piping for a generator usually does. Ask your plumber to handle the permit and inspection with the City of Denton.

Yes, including homes in Corinth and the other nearby towns.

Reviewed by the Denton Apex Plumbing team. Last updated September 25, 2026.

Denton Apex Plumbing coverage map

Coverage map for Denton and the nearby Denton County towns we serve.

Need a gas line fixed or added?

Licensed gas line work across Denton, TX. If you smell gas, leave the house and call the utility first.

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