The cost to replace cast iron pipes depends on many factors, like size and accessibility. Use this guide to get a rough idea of how much you’ll spend.
How Much Does It Cost to Cap a Gas Line? [2026 Data]
Normal Range: $75 - $150
Capping a gas line costs $125 on average, depending on how easy it is to access the line. Most spend between $75 and $150.
How we get this data
Photo: Granger Wootz / Tetra images / Getty Images
Photo: Granger Wootz / Tetra images / Getty Images
Cost Insights
If you’re no longer using a gas line to fuel your appliances, you can have a pro cap it or remove the gas line completely—the latter costing twice as much.
The cost will depend on how much the plumber charges for labor as there aren’t many material costs involved, and it should only take about an hour to complete.
Attempting to cap a gas line yourself can lead to gas leaks and health hazards, so it’s best left to a pro.
If you want to save on costs, you can make the area as accessible as possible by moving nearby appliances and labeling the location of the gas line.
Whether you’re tired of keeping the furnace pilot light alive or simply want to try an electric oven, there are a few reasons why you may not need the gas line for your home. Capping a gas line is actually quite simple, so you will typically pay around $125 for the task. This may fluctuate between $75 and $150, depending on how easy it is to access the end of the line.
Cost to Cap a Gas Line With and Without Removal
You can either cap a gas line in its current location or remove all of the piping material and cap it at the base.
The average cost to cap a gas line without removing the gas line is around $125. Because it only involves putting a cap where the gas line ran to and then a quick seal test, this job only takes a pro around 30 minutes to an hour at most.
Your other option is to remove the gas line completely. Removing the gas line and then capping at the base will cost around $250 to complete and will take a pro less than a couple of hours. However, this will depend on how long the gas line is.
Capping a Gas Line Cost Breakdown
Photo: andrey gonchar / Adobe Stock
Because of the simplicity of this job, there isn’t much related to breaking down the costs.
Labor
Labor is pretty much the only fee you’ll need to worry about when it comes to the cost of capping a gas line. When you hire a local plumber, they’ll usually quote you a flat fee for the process once they come out to see how long it’ll take. Plumbing costs are often structured this way when projects that take less than an hour and require very few materials.
If you are capping a gas line as part of a remodel, the total labor may also be combined with the cost to install a new gas line.
Materials
Speaking of materials, the only one a gas plumber will need is a cap threaded with Teflon tape ($5 to $10) and a few minutes to screw it on. Other required materials include tools like crescent wrenches and possibly a saw to cut a gas line sticking out of the wall too much.
Permits
You’ll need to apply for a permit to remove a gas line and cap it completely. Depending on local codes and ordinances, applying for permits will range anywhere from $25 to $100.
Why You Should Hire a Gas Plumbing Pro
Hiring a natural gas plumber near you accounts for most of the cost to cap a gas line. However, it’s typically worth paying for the expertise of a pro when working with natural gas to prevent accidental illness or injuries.
Here’s why it’s ideal to hire a gas plumbing pro
Capping a gas line is a relatively quick project, but it’s still better to hire a pro. Here’s why:
A pro knows how to cap the gas line correctly to avoid dangerous leaks.
Some areas require a licensed pro to complete all gas-related work, including capping a gas line.
Professional plumbers will ensure compliance with local building codes.
They have the proper equipment on hand to complete this project safely.
Hiring a pro minimizes the likelihood you’ll need to budget for the cost to repair a gas leak.
An expert will complete the task quickly and efficiently.
Angi Tip
Working with gas can be very dangerous and even harmful to your health. Only attempt gas projects yourself if you have the experience and credentials to do so safely. Otherwise, let the professionals handle these jobs.
How to Save Money on Capping a Gas Line
One of the easiest ways to save time and money on this process is to give the plumber as much accessibility to the gas line as possible. This may mean decluttering the area, moving appliances, and properly labeling where the gas line is in the garage or basement. It will also help to shut off the gas ahead of time, but your pro can also handle this if you are unsure of how.
Next Steps: Finalize Your Project With a Pro
Be ready to explain your project to a pro—including the reason you need to cap your gas line.
A professional plumber can help determine whether you need a permit to proceed with this project.
Tell the plumber if you’re capping the gas line as part of a remodeling project.
How Angi Gets Its Cost Data
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.
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