Gas line installation costs $200 to $1,000 for running a new line to a single appliance such as a stove, dryer, or fireplace. If your home needs a new gas service line brought in from the street, expect to pay $500 to $2,500 or more, depending on the distance and your local utility’s requirements. Permits add another $50 to $500 on top of labor and materials. This is one project you do not want to cut corners on: a poorly installed gas line can cause fires, explosions, and carbon monoxide poisoning. Get it done right, by a licensed professional, every time.
If you are adding a gas range, converting an electric dryer, hooking up a gas fireplace, or running a line to a whole-home generator, this guide will walk you through realistic cost ranges, what drives the price up or down, and how to hire a licensed plumber or gas fitter you can trust.
Gas Line Installation Cost by Project Type
The scope of your project matters more than almost any other factor. A short branch line to a new stove is a very different job from bringing gas service to a home that never had it.
| Project Type | Typical Cost Range |
|---|---|
| Branch line to a single appliance (under 20 ft) | $200 to $700 |
| Branch line to a single appliance (20 to 50 ft) | $500 to $1,200 |
| New gas service line from street to meter | $500 to $2,500 |
| Gas line for outdoor kitchen or fire pit | $300 to $1,500 |
| Gas line for whole-home standby generator | $500 to $1,800 |
| Adding multiple appliance connections | $800 to $3,000 |
| Converting an all-electric home to gas | $1,500 to $5,000+ |
These ranges include labor, materials (pipe, fittings, shutoff valves), and a typical permit fee. They do not include trenching for underground lines, concrete cutting for slab homes, or utility connection fees, which can add $500 to $2,000 to the project.
What You Are Paying For: A Line Item Breakdown
Understanding where your money goes helps you evaluate contractor quotes and spot red flags.
Labor
Labor is the biggest cost driver. Licensed plumbers and gas fitters charge $75 to $150 per hour in most US markets. A simple single-appliance hookup might take two to three hours; a more complex project with long runs, underground trenching, or a new meter connection can take a full day or more.
Materials
The pipe itself is relatively inexpensive. Common gas line materials include:
- Black iron pipe: The traditional choice, extremely durable. Materials run $1 to $3 per linear foot.
- CSST (Corrugated Stainless Steel Tubing): Flexible and faster to install, often used in modern construction. Materials run $1.50 to $3.50 per linear foot. Requires bonding to prevent static electricity hazards.
- Copper tubing: Allowed in some states for natural gas, but prohibited in others. Check your local code.
- Polyethylene (PE) pipe: Used underground only, standard for service lines from the street.
A shutoff valve near each appliance connection typically costs $20 to $60 in materials. The plumber will also pressure-test the finished line before signing off.
Permits and Inspections
Most jurisdictions require a permit for any gas line work. Permit fees range from $50 to $500, with the average around $150 to $250. Some municipalities charge based on the number of fixtures or linear feet of pipe. Your plumber should pull the permit; if they suggest skipping it, walk away.
Trenching (for Underground Lines)
Outdoor lines to a generator, fire pit, or outbuilding often require burying the pipe. Trenching costs $5 to $12 per linear foot and is sometimes handled by a separate excavation company. A 50-foot trench might add $250 to $600 to your project.
Cost by US Region
Gas line installation costs vary significantly across the country, driven by labor rates, permit fees, and local code requirements.
| Region | Typical Range for Single-Appliance Line |
|---|---|
| Northeast (NY, MA, CT, NJ) | $400 to $1,400 |
| Mid-Atlantic (PA, MD, VA, DC) | $350 to $1,100 |
| Southeast (FL, GA, NC, SC) | $250 to $900 |
| Midwest (IL, OH, MI, IN) | $200 to $800 |
| South Central (TX, OK, LA) | $200 to $750 |
| Mountain West (CO, AZ, NV, UT) | $300 to $1,000 |
| Pacific Northwest (WA, OR) | $350 to $1,100 |
| California | $450 to $1,500 |
California and major metro areas in the Northeast consistently come in at the top of these ranges due to higher labor costs and more stringent permitting requirements.
Factors That Drive Your Price Up
Distance from the Existing Gas Supply
Every additional foot of pipe adds to your cost. If your gas meter is on the opposite side of the house from where you want to add a gas range, you are looking at a significantly longer run and a higher bill than if you are tapping a nearby existing line.
Type of Construction
Running pipe through a finished wall is harder than working in an unfinished basement or crawl space. Contractors may need to open drywall, fish pipe through insulated cavities, or cut through concrete slabs. Expect an additional $200 to $800 if walls need to be opened and repaired.
Access to the Existing Gas Line
If your existing gas line is buried under a concrete slab or behind brick, accessing it to add a tee fitting is far more labor-intensive than tapping an exposed line in a utility room.
Local Code Requirements
Some states and municipalities require specific pipe materials, additional bonding for CSST, pressure testing to higher standards, or inspections at multiple stages. California, New York, and Massachusetts tend to have the most demanding requirements.
Utility Company Involvement
If your project requires upgrading the meter, relocating the service entry, or running a new service line from the street, you will need to coordinate with your gas utility company. Utilities often charge their own connection fees, separate from what you pay the plumber. These fees range from $200 to $1,500 or more.
Can I Install a Gas Line Myself?
The honest answer: in nearly every state, no. Gas line installation requires a licensed plumber or gas fitter. Even in the handful of jurisdictions that technically allow homeowner permits, most local codes require a licensed professional to pull the permit and perform the work. Your homeowner’s insurance may also refuse to cover a gas-related loss if the work was done without a license and permit.
Beyond legality, this is simply not the right project for DIY. Natural gas and propane leaks are invisible and odorless in their natural state (mercaptan is added as a safety measure, but it can dissipate). An improperly made fitting, a missed pressure test, or a pipe that shifts over time can fill your home with explosive gas. The risk is not worth the $300 to $800 you might save.
What you can do yourself:
- Connect flexible gas connectors to an appliance (the final short flexible hose between the shutoff valve and the appliance). This is typically legal for homeowners and does not require a permit.
- Detect leaks using a gas leak detector or soapy water on fittings after a licensed plumber completes the work.
- Shut off gas at the main shutoff or appliance shutoff in an emergency.
How Long Does Gas Line Installation Take?
Most single-appliance gas line jobs are completed in two to four hours. More complex projects take longer:
| Project | Estimated Time |
|---|---|
| Single appliance, short run (under 20 ft) | 2 to 3 hours |
| Single appliance, longer run (20 to 50 ft) | 3 to 5 hours |
| Multiple appliances in one visit | 4 to 8 hours |
| New service line from street | 1 to 2 days (plus utility scheduling) |
| Whole-home conversion from electric to gas | 2 to 5 days |
Note that scheduling the permit inspection adds time to any project. Your plumber may need to wait a day or two for the inspector before the line can be used.
Hiring the Right Contractor: What to Check
Gas line work is not the place to hire whoever is cheapest. Here is how to protect yourself:
Verify Licensing
Every state requires plumbers or gas fitters to be licensed. Check your contractor’s license on your state plumbing board’s website. For reference:
- In Texas, verify through the Texas State Board of Plumbing Examiners
- In California, check the Contractors State License Board
- In Florida, use the Department of Business and Professional Regulation
- Most other states have a similar lookup tool through their state licensing board website
Ask About Permits
Any plumber who suggests skipping the permit is a red flag. Permitted work is inspected by a third party, which protects you. Unpermitted gas work can also create problems when you sell your home.
Get Three Quotes
Gas line work is competitive. Three quotes help you identify an outlier (high or low) and give you a sense of the local market rate.
Confirm They Will Pressure Test
A proper gas line installation always ends with a pressure test, where the line is pressurized with air or nitrogen and monitored for pressure drop. This is how leaks are found before the gas is ever turned on. Ask your contractor if this is included.
Check Insurance
Your plumber should carry general liability insurance and workers’ compensation. If something goes wrong during the job, you do not want to be liable.
Signs You Have a Gas Leak (Know This Before Any Work Begins)
Before, during, and after any gas line project, know these warning signs:
- Smell of rotten eggs or sulfur (the added odorant mercaptan)
- Hissing or whistling sound near gas lines or appliances
- Dead vegetation in an otherwise healthy yard (above an underground line)
- Bubbling in standing water near a buried line
- Higher than normal gas bills with no change in usage
If you suspect a gas leak: leave your home immediately, do not use any electrical switches or your phone inside, and call your gas utility’s emergency line or 911 from outside or a neighbor’s home. The National Fuel Gas Code published by the NFPA covers proper installation standards.
Gas Line vs. Propane Line: Is There a Difference?
Yes, and the difference matters for your project and your budget.
Natural gas lines connect to your local utility company’s distribution system. The gas pressure is set by the utility, and your plumber sizes the line accordingly.
Propane (LP gas) systems use a tank on your property. Propane operates at higher pressure than natural gas, which affects regulator requirements and fitting specifications. Propane line installation costs are similar, but you also have the ongoing cost of propane delivery and tank rental or purchase.
Converting an appliance from natural gas to propane (or vice versa) requires a conversion kit and adjustment of the burner orifices. Most appliance manufacturers offer conversion kits for around $20 to $60, though labor to install them typically runs another $100 to $200 per appliance.
Is a Gas Line Worth the Investment?
For most homeowners, adding natural gas access pays off over time. Gas appliances typically cost less to operate than electric equivalents. According to the U.S. Energy Information Administration, natural gas is consistently cheaper per BTU than electricity in most US markets. A gas range, gas dryer, and gas water heater together can reduce annual energy costs by $300 to $700 compared to all-electric alternatives.
For a whole-home standby generator, a permanent gas line eliminates the need to store and refill propane tanks, which is a meaningful quality-of-life improvement during extended outages.
The upfront cost of installation is real, but it is typically recovered within two to five years through lower energy bills, and gas appliances often last longer than their electric counterparts.
Official Resources
- U.S. Energy Information Administration: eia.gov - Natural gas pricing, consumption data, and state-by-state breakdowns
- National Fire Protection Association (NFPA 54): nfpa.org - National Fuel Gas Code, the standard most local codes are based on
- U.S. Department of Energy: energy.gov - Energy efficiency comparisons for gas vs. electric appliances
- Consumer Product Safety Commission (CPSC): cpsc.gov - Gas appliance safety, recall information, and carbon monoxide guidelines
- EPA Indoor Air Quality: epa.gov/indoor-air-quality-iaq - Combustion appliance safety in the home
Gas line installation is an investment in your home’s functionality and long-term energy costs. The key is hiring a licensed, insured, permit-pulling professional and not cutting corners anywhere in the process. Get multiple quotes, check licenses, and make sure the work is inspected before you fire up that new gas range.