PhillyHomeCosts

Gas Line Installation Cost in the Philadelphia Area

By Tom Alvarez · Sources verified by the editorial team on Nov 2, 2026

Adding a gas range, dryer, fireplace, grill, generator or tankless water heater usually means running a new branch from your existing gas piping. Switching a house from oil or electric to gas can also mean getting new service from the street. This guide covers what each costs, who may do the work in Philadelphia, the Pennsylvania suburbs and New Jersey, permits, and what you're responsible for once the gas passes the meter.

What a gas line costs

Source and geography Figure
Angi, Philadelphia page (updated May 5, 2026) $554 average; $267–$841 typical; $123 low end, $1,385 high end; $15.40–$25.65 per linear foot
Angi, national (updated Oct 28, 2026) $540 average; most pay $260–$820; $15–$25 per linear foot
HomeGuide, national (Jan 6, 2026) $350–$2,000 overall; $15–$25 per foot for simple runs and $35–$50+ for complex ones

How to read these numbers. Angi explains how it builds its city pages: "We start with national average project costs," then applies "local price index data" from the U.S. Bureau of Economic Analysis. So its Philadelphia figures are national numbers adjusted for local prices, not counts of Philadelphia jobs. HomeGuide's overall range runs much higher than Angi's average. By our reading, Angi's figures describe a short branch to one appliance, while HomeGuide's range also includes longer runs and multiple appliances.

By project (HomeGuide, national)

Project National cost What's included
Extend an existing line $350–$800 One nearby appliance, 10–30 feet
One appliance from the meter $500–$2,000 A new line from the meter to one appliance
Multiple appliances $1,200–$3,000 Lines to two or three appliances
Whole-house conversion $2,200–$7,500 Interior piping for four or more appliances
New service line from the street $2,000–$10,000+ Main line from the street to the meter, plus the meter

By appliance (HomeGuide, national)

Appliance Gas line cost
Dryer $400–$900
Range or stove $500–$1,200
Water heater $500–$1,000 (tankless units may need larger pipe)
Fireplace $500–$1,000+
Furnace $600–$1,500
Outdoor grill or fire pit $600–$1,300
Pool heater $500–$1,500+
Generator $400–$1,500+

For the whole project, see our generator, tankless water heater and furnace guides.

Costs that can be added on (national)

Item Angi HomeGuide
Permit $100–$300 $100–$300+
Pressure test $75–$150; up to $500 where codes call for 12- or 24-hour tests Same
Inspection $50–$75, up to $300 in some regions —
Trenching $4–$12 per foot; $300–$10,000 to bury a line, depending on landscaping $5–$15+ per foot; directional boring $10–$30 per foot
New gas meter $300–$600 Moving a meter: $1,000–$4,500
Labor $45–$200 per hour $50–$200 per hour

HomeGuide notes that "Most utilities own the meter, so coordinate with them before making any changes."

New gas service from the street

If your house has no gas service, the utility runs the service line, and sometimes a main extension, to a new meter. Each utility's tariff decides how much of that it pays for and how much you pay. HomeGuide says "Some utilities companies cover the cost of running a new gas line up to a specified number of feet." Our oil conversion guide compares the line extension rules for PECO, PGW, UGI, PSE&G and South Jersey Gas. Get the utility's written estimate before you sign with a contractor for the inside piping.

In Philadelphia, PGW asks owners and contractors to check with it before designing underground fuel lines, to confirm it can supply the pressure and amount of gas you need (PGW specification).

Buried piping after the meter is usually yours

Federal pipeline rules require a gas utility that doesn't maintain a customer's buried piping to tell the customer so in writing. The notice must say that unmaintained buried piping "may be subject to the potential hazards of corrosion and leakage," that it should be periodically inspected for leaks and, if it's metal, for corrosion, and that when digging nearby, "the piping should be located in advance, and the excavation done by hand" (49 CFR 192.16).

PGW's version tells Philadelphia customers this piping "is the property of the land owner at your address" and lists four duties: "Monitor for Corrosion," "Survey for Leaks," "Repair any Unsafe Conditions" and "Identify and Locate the Piping Prior to any Excavation" (PGW specification). This matters most when the meter sits away from the house, or when a buried line runs to a detached garage, grill, pool heater or generator. In the suburbs and New Jersey, check your own utility's notice to see where its responsibility ends.

Before you dig, call 811. PGW says that under Pennsylvania's one-call law, a homeowner digging on their own property with powered equipment must notify the utilities first, and that skipping this can bring "fines up to $10,000" (PGW).

Permits and who can do the work

  • Philadelphia: you need a Mechanical Permit for "Equipment and piping that use natural gas." "A licensed contractor must perform all work." The permit fee for fuel gas work is "2% of contract costs (minimum $189)," plus a $3 city surcharge and a $4.50 state surcharge. The $100 filing fee is credited toward the permit fee. By our arithmetic, a small job comes to at least $196.50 in city fees. That can be a large share of a few-hundred-dollar line (L&I Mechanical Permit).
  • Pennsylvania suburbs: under the state's Uniform Construction Code, you need a permit to "install, enlarge, alter, repair, remove, convert or replace" a regulated gas system (34 Pa. Code §403.62). Pennsylvania has "no licensure or certification requirements for most construction contractors," so licensing is up to each municipality (PA Labor & Industry). Ask your township what it requires.
  • New Jersey: gas piping is licensed work. A licensed master plumber may do "The installation, maintenance and repair of natural or manufactured gas piping" without a separate HVACR license (N.J.A.C. 13:32-1.4), and the state's HVACR licensing law also covers gas piping (P.L.2007, c.211). Ask your construction office about the permit.

HomeGuide says "Nearly all gas line installations require permits," and that the inspection may include a pressure test.

Pipe materials

HomeGuide lists these national material prices (pipe only, not installed): black iron $5–$10 per foot, "Traditional choice for interior gas lines in homes"; corrugated stainless steel tubing (CSST) $2–$10, which "requires special bonding and grounding to prevent lightning damage"; and polyethylene $1–$3, "Often preferred for underground and exterior lines." Your local code and the utility decide which materials are allowed where. Ask your contractor what they'll use and why.

How to read a quote

  1. Route and length: where the line starts (the meter or an existing branch), its path and its length.
  2. Pipe size and material: is it sized for every appliance on the line, including any you plan to add later?
  3. Shutoff valves and connections: one for each appliance.
  4. CSST bonding, if CSST is used.
  5. Permit, pressure test and inspection: who arranges and pays for each.
  6. Wall, floor and yard repairs: are patching, concrete and landscaping included?
  7. Utility coordination: for a new meter or a larger one, who applies to the utility?
  8. License and registration: the contractor's Philadelphia license, PA HIC registration, or NJ master plumber or HVACR license number.

Contractor registration and contracts

Pennsylvania. Contractors who did $5,000 or more in home improvements in the prior year must register with the Attorney General. Contracts over $500 must be in writing, with the registration number, total price and your right to cancel within three business days (PA Attorney General FAQ).

New Jersey. Home improvement contracts over $500 must be in writing, and you can cancel "before midnight of the third business day" after you receive a copy (N.J.S.A. 56:8-151).

If you smell gas

HomeGuide's advice: "If you smell gas (a sulfur or rotten egg odor), leave your home immediately and call your gas company or 911." Don't try to fix a leak yourself.

FAQ

Can I run a gas line myself? In Philadelphia, L&I requires a licensed contractor for work under a Mechanical Permit, and in New Jersey gas piping is licensed work. Elsewhere in Pennsylvania, ask your township. HomeGuide warns: "Never attempt DIY gas line repairs!"

Why is the permit so expensive compared with the job in Philadelphia? L&I's fuel gas fee has a $189 minimum, so on a small job the fee can be a large share of the price. By our arithmetic, a job at Angi's $540 national average would still owe the $189 minimum plus surcharges, or $196.50 in city fees.

Does the gas company pay for the line to my house? Sometimes, up to a point set by its tariff. See the line extension table in our oil conversion guide and ask the utility for a written estimate.

Thinking about a project?

We don't offer quotes or connect homeowners with contractors. Get at least two written, itemized quotes from licensed contractors and compare them with the checklist above. The costs and rules in this guide come from the sources listed below. Learn how we make money.

Sources