Gas leaks are a very dangerous and surprisingly, common phenomenon across the US. In fact, while around 17 people die every year as a result of gas leaks, thousands more face illnesses and hospitalization due to prolonged exposure to leaking gas.

However, it is fairly easy to detect gas leaks in your home, and once you call licensed plumbers or professionals from your gas company, to have a gas line repaired or replaced. 

We’re going to address some frequently asked questions about gas line repairs to building more awareness about this issue.

How can a homeowner recognize gas leaks at home?

There are several telltale signs that you can look for if you suspect a gas leak in your home.

  • Before service providers distribute natural gas to homes, it is mixed with a strong-smelling sulfur-based compound. This compound has an odor similar to rotten eggs, and this is a giveaway that you may have a gas leak in your home.
  • If you can smell gas in a certain area of your home, look for gas piping or gas appliances in the vicinity. It could be a water heater, an outdoor grill on the other side of the wall, or a gas fireplace. That is most likely the source of the leak.
  • If you have an outdoor gas leak, dead grass in your lawn is a telltale sign. Gas that has been leaking underground over a period of time causes the lawn above it to die.

What are the most common places to look for gas leaks?

gas leaks in home prevention
  • Natural gas lines are most likely to leak where gas pipes are joined together using fittings, such as shut-off valves, unions, tees, regulators, flexible supply lines, and risers. If any of these fittings are not installed properly or have become loose, leaks can occur.
  • A lot of homes use black iron piping to pipe gas. The problem with this material is that it is not resistant to corrosion, and if it isn’t protected from getting wet, it tends to rust and crumble. This will lead to gas leaking.
  • Another type of gas line used is a corrugated stainless steel line (CSST). These tend to get damaged not by exposure to the elements, but during roofing repairs and installations. If the gas line has been installed very close to the roof, it can easily be punctured by roofing nails. The biggest problem is that these leaks are not always easily noticeable.

Because of this, it is always advisable to get your roof inspected by a plumber after installing a new roof, especially if you have CSST piping.

Is it advisable for homeowners to fix a gas line?

Natural gas leaks are very dangerous, and line repairs are best left to professional, certified plumbers. However, here are some things you can do in case of a gas leak in your home.

  • It is important for you as a homeowner to know the location of the gas shut-off valves. If you have a leak, shut off the gas supply immediately and call a professional. While minor leaks can be dealt with by repairing the lines, major leaks may mean replacing the lines.
  • If you notice an overwhelming smell of gas in your home, your family and you ought to vacate the home immediately. Then, call upon licensed and insured professionals to come and shut off the gas supply. 
  • Cell phones, electric switches, and automatic garage doors must not be operated around the smell of gas.
  • An open flame or smoking in the vicinity of gas line leaks can be fatal.
  • Avoid starting a vehicle in the vicinity of a gas leak.

What is the average lifespan of gas lines?

gas pipes
  • While CSST lines can last as many as 30 years, black steel lines with the correct protection can last more than 75 years.

How much does it cost to repair a gas leak?

  • Minor gas leak repair costs average between $120 and $250. 
  • If the line is behind the drywall that needs to be broken down and rebuilt, expect to pay between $270 and $760 to hire a drywall contractor.
  • If the line that needs to be repaired is underground, excavation and landscaping costs could be between $1,500 and $5,000.

What is the cost of replacing a gas line?

  • Replacing a gas line or installing a new gas line could cost between $120 and $1,350, with the national average cost being around $536. 
  • The cost of the pipes alone averages between $0.50 and $8 per foot.
  • Depending on location and scope, labor will cost you between $40 and $200 per hour.
  • Expect to spend around $0.50 per foot for flex connectors, thread seal tape, and other materials.
FAQs about gas line repairs was last modified: September 5th, 2022 by Narayan Shrouthy
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