How much does it cost to replace gas lines?

Knowing the cost before getting an estimate can equal big savings

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Faulty gas lines can cause your appliances to run improperly and can be extremely dangerous. Damaged gas lines can also cause house fires and even explosions, so it is important to ensure they’re secure. However, replacing them can be a costly investment. Here’s what it will cost you and a few ways to save money on gas line repairs and replacements.

Key insights

The average cost to replace gas lines is $535.

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The cost of gas line replacement depends on the type of pipe.

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Gas line replacements can cost anywhere between $120 to $1,350.

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Gas line replacement costs

The price of your gas lines depends on several factors, including the length, size and material of the pipe and installation. An average gas line costs around $535, or $15 to $25 a linear foot, to install, including labor costs. However, depending on the material and length of the pipe, prices can range from $120 to $1,350.

Gas line replacement costs by type

There are many different types of gas lines used for various flow levels. Each type of pipe is designed for varying durability depending on the load capacity it will be dealing with. For example, PVC is used for low-pressure single-family homes, while galvanized steel and black iron are higher-grade and can handle up to 500 pounds per square inch (psi).

Here’s what you can typically expect to pay per foot of gas line:

Additional gas line costs

The costs of repairing and replacing your gas lines depend on the amount of material you need and the location of your pipes. For example, if your lines are underground or behind drywall, replacing them with labor and excavation fees could cost up to $5,000. Generally, though, you can expect to pay $45 to $150 an hour for the labor of installing new gas lines.

Can you DIY a gas line replacement?

Gas line replacements and repairs can be extremely dangerous. Even minor jobs should be left to the professionals.

When should a gas line be replaced?

Gas lines are built to last up to 50 years but should be checked often for damage. A professional should regularly inspect them for rust, corrosion, cracks and leaks to ensure they're running properly and are not hazardous.

Does your home warranty cover gas line repair or replacement?

Home warranties cover an extensive range of systems for normal wear and tear, including gas lines. This coverage is usually offered in the highest home warranty plan, in a plan that includes plumbing or as an add-on for an additional fee. However, home warranty contracts may have exclusions and coverage caps, so double-checking your contract might be worth it.

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    How long do gas lines in your home last?

    Gas lines can last up to 50 years but should be inspected around 20 to 30 years of age.

    Do I need to have my gas lines serviced regularly?

    Homeowners should have their gas lines serviced and inspected annually to make sure there are no leaks.

    Do gas lines have a warranty?

    No, gas lines do not have a warranty. However, home warranties typically cover gas lines with plumbing or service line coverage.

    Bottom line

    Faulty gas lines can also quickly become hazardous and cause fires and even explosions, so it's important to ensure they run properly. Calling a professional could cost $45 to $150 an hour, but you could also check if your home warranty plan covers gas line repairs and replacements to save some money.

    Article sources

    ConsumerAffairs writers primarily rely on government data, industry experts and original research from other reputable publications to inform their work. Specific sources for this article include:

    1. Benjamin Franklin Plumbing, “Common Signs You Need Gas Line Repair or Replacement.” Accessed April 16, 2024.
    2. National Economy Plumbers, “Gas Inspections: How Often Should You Get One In Your Home?” Accessed April 16, 2024.
    3. Porch, “Do Home Warranties Cover Gas Lines?” Accessed April 16, 2024.
    4. Angi, “How Much Does It Cost to Run or Fix a Gas Line?” Accessed April 16, 2024.
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