How much does gas line installation cost?
How much does gas line installation cost?
$350 – $2,000 average cost to extend an existing gas line
$2,000 – $10,000 average cost to install a gas line from the street
Average gas line installation cost
Gas line installation costs $350 to $2,000 on average for the materials and labor, depending on the location, project size and scope, and the distance from your gas supply. Extending an existing gas line or connecting a new appliance costs much less than adding a new gas line from the street to your home, which ranges from $2,000 to $10,000+.
The table below shows the average cost to install a gas line for various projects.
| Project type | Average cost | What's included |
|---|---|---|
| Extending existing line | $350 – $800 | Tapping into existing gas line to add one nearby appliance (10 – 30 feet) |
| Single appliance from meter | $500 – $2,000 | Running new line from gas meter to one appliance |
| Multiple appliances | $1,200 – $3,000 | Installing lines to 2 – 3 appliances from existing gas system |
| Whole house conversion | $2,200 – $7,500 | Complete interior installation for 4+ appliances throughout home |
| New service line from street | $2,000 – $10,000+* | Installing main gas line from street to meter, plus meter installation |
*Some utilities companies cover the cost of running a new gas line up to a specified number of feet when you set up service with them.
Gas line installation cost per foot
The cost to install a gas line ranges from $15 to $50+ per linear foot, including materials and labor. Simple installations with easy access typically cost $15 to $25 per foot. More complex projects requiring underground runs, additional fittings, multiple turns, or difficult access points can push costs to $35 to $50+ per foot.
| Gas line length (feet) | Cost for simple installation | Cost for complex installation |
|---|---|---|
| 10 | $150 – $250 | $350 – $500+ |
| 20 | $300 – $500 | $700 – $1,000+ |
| 30 | $450 – $750 | $1,100 – $1,500+ |
| 50 | $750 – $1,300 | $1,800 – $2,500+ |
| 75 | $1,100 – $1,900 | $2,600 – $3,800+ |
| 100 | $1,500 – $2,500 | $3,500 – $5,000+ |
What affects the cost of adding a gas line?
While the length is one of the most significant cost factors for gas line installation, several factors influence the cost:
Complexity
Simple, straight runs cost less than installations requiring multiple bends, turns, or connections. If your gas line needs to navigate around obstacles, go through walls, or include multiple fittings, expect to pay on the higher end of the range. Underground installations requiring trenching or horizontal directional drilling also add to complexity and cost.
Number of appliances
Connecting multiple appliances to your gas system increases both material and labor costs. Each appliance requires its own connection, properly sized pipe, and shut-off valve. If you're planning to convert several appliances from electric to gas, discuss this up front with your plumber to get an accurate estimate.
Pipe material
The type of pipe material affects both upfront costs and long-term durability.
| Pipe material | Material price per linear foot* |
Details |
|---|---|---|
| Black iron | $5 –$10 | Traditional choice for interior gas lines in homes |
| Copper | $2 – $6 | Less commonly used for gas lines today due to regulatory changes in some areas |
| Corrugated stainless steel tubing (CSST) | $2 – $10 | Flexible, easy to install, but requires special bonding and grounding to prevent lightning damage |
| Galvanized steel | $3 – $9 | Durable; suitable for high-pressure systems and indoor/outdoor above-ground use |
| High-density Polyethylene (HDPE) | $1 – $3 | Often preferred for underground and exterior lines due to its corrosion resistance |
*Material cost only; does not include installation
Installation method & location
How your gas line is installed significantly impacts your project cost. Above-ground installations are typically less expensive and simpler, making them ideal for indoor lines or short outdoor runs. Underground installations require either traditional trenching or horizontal directional drilling (HDD).
Trenching costs $5 to $15+ per linear foot and involves digging a trench, laying the pipe, and backfilling. It's more affordable but disrupts landscaping.
HDD, or directional boring, costs $10 to $30 per linear foot and creates underground tunnels without major excavation—perfect for running lines under driveways, sidewalks, or established landscaping.
While more expensive initially, HDD often saves money by avoiding landscape restoration costs.
Type of gas
Natural gas and propane require similar installation approaches, but there are some important differences to consider.
Natural gas connects directly to your utility's supply line and requires no storage tank. Initial installation costs vary based on whether you already have gas service. If you need a new line from the street, expect to pay $2,000 to $10,000+ depending on the distance and terrain.
Propane requires a storage tank in addition to the gas lines. Many propane companies install the tank and basic line connection at no charge when you sign up for their service, though you may need to pay a plumber for running lines to individual appliances inside your home.
If you're not leasing it from a supplier, an above-ground propane tank costs $300 to $3,000+ installed, while a below-ground tank costs $1,500 to $5,000+. Installation typically includes the tank, initial line connection, and any necessary permits. Tank size depends on your usage needs; larger homes with multiple gas appliances require bigger tanks.
Additional costs
Depending on the project size and scope, additional expenses may arise during your gas line installation.
Moving the meter: Relocating a gas meter costs $1,000 to $4,500 depending on the complexity of the move. Your utility company may handle this work directly or require you to hire an approved contractor. Most utilities own the meter, so coordinate with them before making any changes.
Restoration costs: If installation disturbs landscaping, driveways, or other surfaces, you'll need to budget for repairs and restoration.
Driveway repair costs $100 to $400 for small patches, while major concrete repairs can cost $600 to $3,000+.
Budget for reseeding, sod replacement, or potential replanting. Simple lawn repair may cost $300 to $1,000, while extensive landscape restoration can reach several thousand dollars.
Labor
Labor represents a significant portion of your gas line installation cost. Licensed plumbers and gas fitters charge $50 to $200 per hour. Your location, the contractor's experience level, and project complexity all influence labor rates. Urban areas generally have higher labor costs than rural regions.
The time required for your project directly impacts labor costs. Simple line extensions might take just 2-4 hours, while complex installations with multiple appliances or difficult access can require 8 to 16 hours or more spread across several days.
Permits and inspections
Nearly all gas line installations require permits to ensure safety and code compliance. Permit costs range from $100 to $300+ depending on your location and project scope. Some areas require separate permits for plumbing and excavation work.
Inspections verify that your installation meets local codes. Your contractor typically schedules required inspections, which may include pressure testing to check for leaks. Standard pressure tests cost $75 to $150, though extended 12- or 24-hour tests can reach $500.
Oil to gas conversion
Switching from oil to natural gas involves removing your old oil system, installing gas lines, and purchasing a new gas furnace or boiler. The total conversion cost with an existing gas line ranges from $6,000 to $12,000; a conversion with new gas line installation costs $12,000 to $20,000+. However, long-term fuel savings often make this worthwhile.
Gas line repairs
If you already have gas lines that need repairs, costs are generally lower than new installations. The labor for gas line repair costs runs $75 to $150+ per hour depending on the professional you hire and the issue's complexity.
Common repairs include fixing small leaks, replacing corroded sections, or updating old piping. If you smell gas (a sulfur or rotten egg odor), leave your home immediately and call your gas company or 911. Never attempt DIY gas line repairs! Always hire a licensed professional.
Cost to install a gas line by appliance
Gas line installation costs for different appliances vary based on their gas requirements and typical placement in your home. For example, laundry room installations tend to be simpler as they use smaller lines and require moderate gas flow. Furnaces typically require the largest gas lines and most extensive work, especially in homes without existing gas service.
| Gas appliance | Average gas line installation cost |
|---|---|
| Dryer | $400 – $900 |
| Generator | $400 – $1,500+ |
| Fireplace | $500 – $1,000+ |
| Furnace | $600 – $1,500 |
| Outdoor grill or fire pit | $600 – $1,300 |
| Pool heater | $500 – $1,500+ |
| Stove or range | $500 – $1,200 |
| Water heater | $500 – $1,000* |
*Tankless water heater units may require larger pipes due to higher BTU demands, potentially increasing installation costs.
Generator
The cost to install a gas line for a generator ranges from $400 to $1,500+. Generators require professional installation to ensure proper safety measures, including adequate distance from your home and proper ventilation. For the complete installation, a whole house natural gas generator costs $6,000 to $11,000+.
Gas stove or range
The cost to install a gas line for a stove ranges from $500 to $1,200 on average. Kitchen installations typically need 20 to 30 feet of 1/2-inch or 3/4-inch pipe from the nearest gas source. Straightforward access usually keeps costs lower, though running lines through finished walls increases expenses.
Fireplace
The cost to run a gas line for a fireplace averages $500 to $1,000+. The cost depends heavily on the proximity to existing gas lines. Installations in basements or rooms with existing lines cost less than running lines up to second-floor bedrooms.
Pool heater
While less common, gas pool heaters are popular in cooler climates. Installation costs average $500 to $1,500 or more due to the need to route lines under pool decks and ensure proper weatherproofing. Adding the cost of the gas pool heater unit brings your total project cost to $1,500 to $4,500+.
Grill or fire pit
The cost to install a natural gas line for a grill ranges from $600 to $1,300 on average. Outdoor installations typically cost more due to underground trenching requirements. However, you'll never need to worry about propane tank refills again.
Gas line installation FAQs
How deep are gas lines buried?
Many local codes require underground gas lines to be buried 18 to 24 inches deep. Some areas with harsh winters or heavy frost may require deeper installation up to 36 inches. Your local building department can provide specific depth requirements for your area. Always call 811 before digging to have underground utilities marked.
Who installs gas lines?
Licensed plumbers typically handle gas line installations, though some states also license specialized gas fitters. These professionals understand gas flow requirements, proper pipe sizing, safety codes, and testing procedures. They also handle permit applications and coordinate required inspections with your local building department.
Never attempt DIY gas line installation! Improper installation can lead to dangerous gas leaks, fires, or explosions. The safety risks far outweigh any potential savings.
Getting estimates for gas line installation
Remember, the lowest bid isn't always the best choice. Quality workmanship and experience matter significantly when working with gas lines. Your family's safety depends on proper installation.
When searching for a gas line plumber near you, be sure to:
Get at least three quotes from licensed, insured plumbers or gas specialists in your area.
Verify licenses and insurance to ensure the contractors meet local requirements and protect you from liability.
Request itemized estimates that break down materials, labor, permits, and any additional costs.
Check references and read reviews of local contractors on HomeGuide and Google.
Confirm warranty coverage on both labor and materials.
Request a timeline so you know when work will begin and approximately how long it will take.
Discuss payment terms including deposit requirements and final payment schedules.
Questions to ask a gas line plumber
When interviewing contractors for your gas line installation, ask these questions to help you choose the best professional for your project:
Are you licensed and insured for gas line installation work in this state?
How many years of experience do you have with gas line installations?
Will you handle all permit applications and coordinate required inspections?
What type of pipe material do you recommend for my specific project, and why?
Does your estimate include all necessary materials, labor, permits, and testing?
What warranty do you provide on your work and the materials used?
Can you provide references from recent gas line installation projects?
How long will this project take from start to finish?
What's your process if you encounter unexpected issues during installation?
Will you repair any disrupted landscaping or surfaces, or should I hire someone separately?
Using our proprietary cost database, in-depth research, and collaboration with industry experts, we deliver accurate, up-to-date pricing and insights you can trust, every time.