How Much Does It Cost to Repair a Gas Line?

Average range: $150 - $700
Low
$100
Average Cost
$400
High
$2,300
(Replacing a section of damaged pipe)

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Reviewed by Paula Reguero. Written by Fixr.com.

Natural gas is an important energy source in many homes. It can heat your home’s water supply or power gas appliances like ovens and stoves. Your home’s gas supply runs via a main line from the meter on the street into your home and is transported to different areas by individual lines. These pipes are strong and durable, but issues can arise with your gas line if parts of the piping crack, leak, or become damaged. It is vital to get the gas line repaired immediately when this happens because gas leaks are dangerous.

The national cost average to repair a gas line is $150 to $700, with most homeowners paying $400 to repair a section of damaged pipe. Costs vary depending on different factors, including pipe materials and repair type. This project’s low cost is $100 for cleaning rust off an easily accessible small pipe section. The high cost is $2,300 to fix a leak in an underground pipe that requires extensive excavation.

Cost to Repair a Gas Line

Home Gas Line Repair Cost
National average cost$400
Average range$150-$700
Minimum cost$100
Maximum cost$2,300


Gas Line Repair Cost by Project Range

Low
$100
Clearing rust off a small section of easily accessible pipe
Average Cost
$400
Replacing a section of damaged pipe
High
$2,300
Fixing a leaky gas line in a hard-to-access area

Gas Line Repair Cost by Gas Pipe Material

Gas lines can be made of various materials. Some are more expensive to fix, so the material impacts the final repair costs. The table below shows common gas pipe materials and average repair costs for each.


Cost per Linear Foot to Repair a PVC, HDPE, Copper, CSST, Galvanized Steel, or Black Iron Gas Line

Cost per Linear Foot to Repair a PVC, HDPE, Copper, CSST, Galvanized Steel, or Black Iron Gas Line


Type of MaterialAverage Repair Costs per Linear Foot (Labor Included)
PVC$15 - $20
HDPE$15 - $20
Copper$15 - $25
CSST$15 - $25
Galvanized Steel$20 - $30
Black Iron$25 - $35


PVC Gas Line Repair Cost

The average cost of PVC gas line repair is between $15 and $20 per linear foot. PVC is only used for underground pipes and one of the cheapest materials for gas pipes, but it is not used in all areas, and some building codes prohibit its usage altogether. If you have PVC pipes at your home, repairs to the line should be relatively cheap. One of the issues with PVC piping is that it can crack under pressure and does not cope well with large temperature shifts.

HDPE Gas Pipe Repair Cost

Homeowners pay between $15 and $20 a linear foot for repairs to HDPE gas lines. HDPE stands for high-density polyethylene 1. This is regarded as one of the top materials for outdoor gas lines because it stands up well to corrosion, holes, and cracks. However, HDPE pipes are prone to leaks and can warp in high heat.

Copper Gas Line Repair Cost

To repair copper gas lines, expect to pay between $15 and $25 per linear foot. It is rare to see copper pipes used for gas because it is a conductor material. Some plumbers refuse to install it and recommend alternatives like CSST or galvanized steel. Copper corrodes easily, so it may get clogged more often than other materials.

CSST Gas Line Repair Cost

CSST gas line repair work averages $15 to $25 a linear foot. CSST stands for corrugated stainless steel tubing. It is a popular material for gas line installations due to its strength and dependability, but there are still risks of dents and cracks.

Galvanized Steel Gas Pipe Repair Cost

The average cost for repairs to galvanized steel 2 gas lines ranges from $20 to $30 per linear foot. Galvanized steel piping is one of the toughest materials for gas lines. It does not rust or corrode on the outside and does not have the same reactive properties as copper. So, it is highly durable and resistant to most forms of damage. However, the interior of galvanized steel pipes can clog and corrode over time.

Black Iron Gas Line Repair Cost

Homeowners pay between $25 and $35 a linear foot for black iron gas line repairs. Black iron is a popular choice for gas line installations because it is very good at resisting extreme temperatures and pressure levels. For many years, it was the only material used in indoor gas line installations. It must be used indoors because it corrodes when exposed to the elements. However, even indoor black iron gas lines may eventually rust.


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Gas Line Repair Cost by Type of Repair

The repair type is one of the main factors influencing the cost of your gas line repair. Fixing a gas leak is a different process from dealing with high pressure in the pipes or a clogged pipe, so the costs for each job vary. The table below shows common gas line repair types and average costs for each, including parts and labor.


Cost to Repair Gas Line by Type of Repair: Rust, Seal, Leak, High-Pressure, Clog, Solder, Broken Section...

Cost to Repair Gas Line by Type of Repair: Rust, Seal, Leak, High-Pressure, Clog, Solder, Broken Section...


Type of RepairAverage Repair Costs (Labor Included)
Rust$100 - $500
Pipe$150 - $600
Seal$150 - $600
Leak$150 - $800
High Pressure$150 - $800
Clog$150 - $800
Solder$200 - $500
Broken Section$250 - $800


Rusted Gas Line Repair Cost

If you have rusty gas line pipes, expect to pay between $100 and $500 for repairs. Rust naturally occurs on gas lines, especially in areas with rain and moisture, and it is common for rust to form in the winter. Fortunately, this is one of the cheaper repairs because many products can remove rust. A professional may use these products and other methods like sanding and painting to fix a rusted line.

Gas Pipe Repair Cost

Repairing a section of gas line pipe costs between $150 and $600. A pipe can be repaired if there is only light and superficial damage. Damaged sections may be carefully removed, cleaned with specialty products, sanded down, sealed with rubber tape and epoxy, and reinstalled.

Seal Gas Line Cost

The average cost to seal a gas line ranges from $150 to $600. Sealing a gas line involves finding the right fittings, cleaning the threads on the gas pipe, and using Teflon tape of special pipe thread compound to the threaded end of the line before connecting the pieces to seal it. This is a key part of gas line installation, and it may need resealing if your line has been improperly installed or is old.

Gas Line Leak Repair Cost

Homeowners pay between $150 and $800 to fix a gas line leak. The costs can be higher if the leak is in an inaccessible or buried part because the line must be excavated, adding around $1,000 to $1,500 to the price. When leaks happen, the damaged part of the line needs to be replaced entirely. You can spot a gas leak from the appearance of sulfur or rotten egg smells, or if you suddenly notice your gas bill costs have risen without explanation.

High-Pressure Gas Line Repair Cost

Fixing a gas line with high pressure averages $150 to $800, or potentially higher if the line is underground and requires excavation. Usually, the gas regulator valve has a problem if there is an issue with pressure. These regulators control pressure in the gas line, but if they break, the pressure rises inside the home. It could also be a blockage causing high pressure, and high-pressure lines are at greater risk of cracking and leaking, which may lead to extra costs.

Clogged Gas Line Repair Cost

Repairing a clogged gas line costs between $150 and $800. Gas lines can become clogged or blocked. Water can get into the pipe, leading to corrosion and rust, which may cause a blockage. Tree roots can also grow around and into the lines, cutting off gas, or pieces of dirt and debris can get into pipes through tiny gaps and cracks. Usually, a professional must inspect the pipes to find the source, typically with the aid of a borescope. They may be able to clear the blockage easily if the pipe is easily accessible. However, prices can be much higher if the pipe is hard to access or if the blockage requires pipe replacement.

Soldering Gas Pipe Cost

Soldering gas pipes ranges from $200 to $500. This work demands advanced equipment and must be done with expert precision, so labor costs can be high. Soldering gas pipes is often unnecessary, but when working with copper pipes, it may be necessary to solder certain sections and fittings to make them secure.

Broken Gas Line Repair Cost

Fixing a broken section of gas line in your home ranges from $250 to $800. Costs can be higher if the pipe is hard to access, such as pipes located behind drywall 3 or underground. Parts of the line may break from corrosion, pressure problems, and exposure. It is not safe to repair broken pieces of gas pipe, so they need replacing instead.

Cost to Repair a Gas Line by Type of Replacement

In many cases, the parts of your gas line that are damaged must be replaced. It can be dangerous to leave damaged sections of a gas line in place, and repair workers assess the situation and decide if even their best attempts could lead to an unsafe line. Therefore, it is not uncommon for new valves and pieces of pipe to have to be fitted, with the old items being removed. The table below shows common gas line replacements and average costs for each.


Cost to Replace a Pipe or Shut-Off Valve in a Gas Line

Cost to Replace a Pipe or Shut-Off Valve in a Gas Line


Type of ReplacementAverage Costs (Labor Included)
Pipe$23 - $35 per linear foot
Shut-Off Valve$350 - $600


Gas Pipe Replacement Cost

The average cost to replace gas pipes is between $23 to $35 per linear foot, including the cost of removing the existing line and installing the replacement. Pipes usually need replacing when the existing pipe is damaged beyond repair because of issues like rust and cracks. The price mostly depends on the amount and material of your gas pipes and how easy the area is to access. Higher-grade pipe materials, such as galvanized steel and black iron, cost more to replace than budget-friendly materials like CSST.

Replace a Gas Shut-Off Valve Cost

Replacing a gas shut-off valve averages $300 to $600. The valves are expensive, ranging from $150 to $350. You must also factor in labor costs. Shut-off valves are an important part of any gas system because they stop the gas flow in emergencies or when gas appliances must be repaired. Leaky, broken, or faulty valves must be replaced.


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Labor Costs to Repair a Gas Line

It is very important to work with licensed, experienced plumbers. Repairing gas lines is dangerous work and requires skill and precision, so you do not want to entrust this repair job to someone who does not know what they are doing. The labor costs for gas line repair vary, depending on factors like the amount and type of work required. Typically, plumbers charge for their services by the hour, varying from $45 to $200 per hour. Some plumbers may also have a callout fee of between $50 and $100, but this fee is usually waived if you hire them for the repairs. You might also have to pay extra if you live far away.

Gas Line Inspection Cost

The cost of gas line inspections averages $50 to $75. Gas lines are usually inspected when they are installed to check that the installation process was carried out successfully, but it is also recommended to have your lines inspected if you notice warning signs of gas problems, sulfur smells, issues with gas appliances, bubbling in the yard, or plants dying around the gas line. This is a good way to detect gas line issues before they become serious.

Gas Line Pressure Test Cost

Homeowners pay between $75 and $100 for a gas line pressure test. This test evaluates the pressure inside your gas line. It determines if there is a pressure problem or the line is leaking, so it is a good method of diagnosis when gas line problems are suspected.

Emergency Gas Line Repair

If you have an urgent gas line problem like an obvious leak or serious damage, get it fixed immediately. Gas leaks and line damage are dangerous, and there are risks of fires, explosions, and gas poisoning for people and animals inside the house. Fortunately, many plumbers and gas line repair companies offer emergency same-day services, but you usually pay an extra $100 to $250 for this.


Gas Line Installed in a House


Gas Line Maintenance

One of the best ways to avoid any serious gas line problems is to keep your gas lines well-maintained. Of course, it is not always possible for homeowners to physically inspect and maintain all the gas lines, but there are some things you can do to keep an eye on your lines and ensure they remain in good condition.

Homeowners are encouraged to visually check on accessible gas lines throughout the year. It is especially important to check them at the start of summer and winter. Changing temperatures in the summer can lead to the lines expanding and cracking. Frosts and dampness of winter may cause rust and corrosion.

To properly inspect your gas lines, switch off all gas appliances and then visually inspect the lines around the appliances and by your meter. If you spot issues like cracks, rusty patches, or strange smells around the lines, call a professional plumber. This rapid response is important for efficient gas line maintenance because problems worsen the longer you leave them. If you act fast and call the pros for immediate repairs, you can avoid more serious issues.

Another option for gas line maintenance is to call plumbers or gas specialists to inspect your lines at an average cost of $50 to $75.

Repair vs Replace Gas Line

In many cases, your plumber can tell you the best course of action when issues arise with your gas line. They use their skills and expertise to diagnose the issue and recommend a repair or replacement. Listen to the expert advice of your plumber in this situation because gas leaks and line problems are dangerous when not repaired correctly.

However, your repair worker might offer you the choice between repairing or replacing the line. Repairs are usually cheaper than replacements - the average cost to have new gas lines fitted is between $23 and $35 a linear foot, with most homeowners paying $800 for a typical 25-foot gas line. Plus, you might pay more for replacements because there are removal and disposal costs to consider.

So if the repair costs are lower than the replacement costs, it makes more sense to repair the line rather than replace it. If the damage is serious or your gas lines are old and require regular repairs, it may be better to get a new line for safety and efficiency.


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Enhancement and Improvement Costs

Earthquake Gas Shut-Off Valve Installation Cost

The cost of installing an earthquake gas shut-off valve is between $850 and $1,500, and prices vary from state to state. Earthquake gas shut-off valves are designed to automatically shut off your gas supply when an earthquake occurs at your home. This can be really important in earthquake-prone areas because earthquakes can do major damage to the gas line, leading to leaks and the risk of fires and explosions. Depending on where you live and the chances of earthquakes occurring, local building codes may require you to have one of these valves fitted to your home’s gas line.

Cost to Reroute a Gas Line

Expect to pay between $15 and $30 per linear foot to have your gas line rerouted. So, the final price depends on how long the line is and how much labor is required to change it. Some plumbers may also charge per line, with average prices of $100 to $300 per line. Permits from your local building authority are usually required for moving or rerouting gas lines. Research this beforehand and comply with all the rules and regulations. Rerouting a gas line is important when making renovations to your property.

Gas Line Sediment Trap Cost

Homeowners pay around $100 to $150 to have a gas line sediment trap professionally installed. A sediment trap is designed to capture sediment and prevent it from clogging up the line, reducing the risks of blockages, pressure problems, and other gas line issues. So this can be a good method to extend the lifespan of your gas line and reduce the need for repairs.

Cost to Cap a Gas Line

The average cost to cap a gas line is between $75 and $150. The price may be slightly higher or lower, depending on the location and materials involved. Capping a gas line basically means sealing it off, which is done on lines that are no longer used. It is usually a more efficient and affordable alternative to having the line removed.

Additional Considerations and Costs

  • License. It is always best to work with licensed plumbers and gas line professionals when doing any kind of gas line repair. Check the status of your plumber’s license beforehand and make sure it is valid before hiring them to work on your line.
  • Warranty. Some gas line installations come with warranties that can cover the costs of any repairs or replacements that may be needed in the first 12 months or longer. Check to see if you have a valid warranty before paying for any repairs.
  • Gas company. Some homeowners mistakenly believe that gas companies are responsible for paying for gas line repairs. This is untrue. In general, it is up to the homeowner to cover the costs when issues arise with the gas line on their property.
  • Safety. Gas leaks can be really dangerous, with risks of fire, explosion, and poisoning. If you smell gas or suspect a gas leak, it is best to leave the home immediately and contact the professionals. If you cannot get urgent gas line repair from nearby plumbers, call the fire department.
  • The bubble test. If you suspect a gas leak in your home, you can conduct a “bubble test” to confirm it. To do this test, rub some soapy water on the line where you suspect the leak. If gas is escaping, bubbles will appear, and you should call a plumber to repair the line.
  • Permit. You do not usually need a permit for gas line repairs, but permits may be required if the line needs to be moved or sections need to be added or replaced. Consult with your local building authority for more information.
  • DIY. It is not recommended for homeowners to try and handle gas line repair themselves. As stated several times throughout this guide, damaged gas lines can be really dangerous, and repairs require a lot of skill and precision.

FAQs

  • Does homeowners insurance cover gas line repair?

It depends. A standard homeowners insurance policy can cover gas leaks in some situations, such as if a storm or other natural disaster damages the line. But policies will not usually cover leaks caused by natural wear and tear or improper installation.

  • Do plumbers repair gas lines?

Yes, plumbers are usually the best people to call when it comes to gas line repair. Ideally, you want to find a plumber with specialized experience in working with gas lines.

  • Do all plumbers work on gas lines?

No, not all plumbers are trained or certified to work with gas lines. This is why homeowners need to be careful and hire a plumber or plumbing company that knows how to work with gas lines.

  • Is a small gas leak dangerous?

Yes, a small gas leak can be dangerous. Even little amounts of gas can catch fire or cause explosions, and if the leak is left unattended for a while, large quantities of gas can build up inside the home.

  • Do plumbers check gas lines?

Yes, many plumbers check gas lines, and a lot of them offer gas line inspection and maintenance services. Ensure that you find one who has experience and certification in working with gas lines.

  • Can you patch a gas line?

No, it is not recommended to patch a gas line. When gas line damage occurs, it is usually best to have the damaged parts replaced because patching may not be completely successful and could fail, leading to future leaks and risks.

  • How do you protect a gas line?

Gas lines can be coated in epoxy to help against corrosion and may be rerouted or moved if there is a risk of damage or accidents. Lines should also be inspected, maintained, and sealed as necessary by professionals for protection.

Remodeling Terms Cheat Sheet

Definitions in laymen's terms, cost considerations, pictures and things you need to know.
See full cheat sheet.
1 Polyethylene: A resilient, pliable, synthetic resin made by polymerizing ethylene and primarily used for containers, packaging, corrosion-resistant piping, and insulation
glossary term picture Galvanized Steel 2 Galvanized steel: Steel that has had a protective zinc coating applied to it to make it resistant to rusting
glossary term picture Sheetrock 3 Drywall: Type of plasterboard, commonly used to build walls and ceilings, composed of gypsum that is layered between sheets of heavy paper

Cost to repair a gas line varies greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.

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