How much does gas line installation cost in Seattle?
By Our research team · Last verified · Methodology
Most new gas lines to one appliance in Seattle cost $400–$2,000 for a short run of about 10–30 feet from existing pipe, installed and pressure-tested. $860 is the typical bill; hooking a range up to a line that's already there is $160–$590.
How we get this data- Typical
- $860
- Low end
- $200
- High end
- $3,300
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Seattle's price band
Seattle is pricier than 97% of the 195 US metros we price for gas line work.
A short new gas line to one appliance costs $400–$2,000 in Seattle, and $860 is typical. Hooking up a range to an existing line is $160–$590, a grill or fire pit line $520–$2,600, and a standby generator line $640–$3,800.
Puget Sound is earthquake country, so many homeowners add an automatic seismic gas shutoff valve while the gas plumber is there. Puget Sound Energy handles meters and service lines.
Installed prices include the pipe, fittings, labor, a shutoff valve and a pressure test. New gas piping is licensed work, and a permit ($60–$410) and inspection are the norm in Seattle.
Comparing cities, or after the US-wide picture? See the national guide: Gas line installation cost in the USA.
$400–$2,000 for a short new gas line to one appliance in Seattle, installed — typically $860. Hooking up a range to an existing line is $160–$590, and a 50+ ft run $1,150–$5,150. Verified November 2026. Get free Seattle quotes →
- Short new gas line to one appliance: $400–$2,000 ($860 typical)
- Range hookup on an existing line $160–$590; dryer hookup $130–$460
- Grill or fire pit line $520–$2,600; standby generator line $640–$3,800
- Leak repair $200–$1,200; permit $60–$410; gas plumbers $95–$250/hr
- Priciest area to work in: Downtown, SoDo & Capitol Hill; lowest quotes: Eastside & Tacoma
Prices verified November 2026 · Cross-referenced against 35+ American pricing sources · See methodology
Installed prices include pipe, fittings, labor and a pressure test unless the row says otherwise. Seattle metro, re-verified November 2026. Per-foot rows are for the pipe run only.
| Service | Low | Typical | High |
|---|---|---|---|
| New gas line to one appliance (short run)per line | $400per line | $860 | $2,000 |
| Gas plumber hourly rate/hr | $95/hr | $140 | $250 |
| Service call feeper visit | $95per visit | $190 | $350 |
| Gas range or cooktop hookup (existing line)per job | $160per job | $290 | $590 |
| Gas wall oven hookup (existing line)per job | $200per job | $360 | $780 |
| Gas dryer hookup (existing line)per job | $130per job | $230 | $460 |
| Water heater gas connection (gas side only)per job | $160per job | $330 | $650 |
| Gas stub-out or quick-connect outlet (e.g. for a grill)per outlet | $320per outlet | $520 | $1,050 |
| Outdoor grill or fire pit gas lineper line | $520per line | $1,150 | $2,600 |
| Standby generator gas lineper line | $640per line | $1,550 | $3,800 |
| Garage or shop heater gas lineper line | $450per line | $1,050 | $2,300 |
| New gas line run, 50+ ftper line | $1,150per line | $2,300 | $5,150 |
| Black iron gas pipe, installedper foot | $19per foot | $28 | $44 |
| CSST flexible gas pipe, installedper foot | $14per foot | $21 | $31 |
| Underground polyethylene gas line with trenchingper foot | $25per foot | $38 | $64 |
| Vented gas fireplace insert or wall heater, installedinstalled | $1,750installed | $3,500 | $6,400 |
| Gas leak detection and repairper job | $200per job | $530 | $1,200 |
| Gas pressure test and inspectionper job | $95per job | $190 | $520 |
| Gas shutoff valve replacementper valve | $190per valve | $390 | $840 |
| Seismic gas shutoff valve (California and quake zones)installed | $310installed | $630 | $1,250 |
| CSST bonding to the electrical groundper home | $130per home | $260 | $520 |
| Propane to natural gas conversion (2–3 appliances)per home | $890per home | $2,300 | $5,100 |
| Gas meter relocation (utility + plumber)per job | $1,250per job | $3,150 | $5,650 |
| Gas piping permitper job | $60per job | $170 | $410 |
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Prices verified November 2026 · Cross-referenced against 35+ American pricing sources · See methodology
Figures are for the Seattle metro area. Trip fees can apply on the far edges; tight older homes in Downtown, SoDo & Capitol Hill cost the most to work in.
Gas line prices across Seattle
Where you live in the metro changes the labor, not the pipe. Older homes in Downtown, SoDo & Capitol Hill take the longest; jobs in Eastside & Tacoma tend to come in at or under the city typical.
Downtown, SoDo & Capitol Hill
- Per line
- $430–$2,250 per line
- Typical job
- $560–$2,900 / grill or fire pit line
The priciest part of the metro for gas work: tight basements, old steel pipe, street parking and building rules all add time. Ask whether patching and the permit are in the price.
Ballard, Fremont & Georgetown
- Per line
- $410–$2,100 per line
- Typical job
- $540–$2,750 / grill or fire pit line
Renovated older homes next to new builds. A kitchen remodel that moves the range is the most common job here, and it's usually a short CSST or black iron run.
South Seattle & Rainier Valley
- Per line
- $400–$2,000 per line
- Typical job
- $520–$2,600 / grill or fire pit line
Established neighborhoods. Most jobs are short runs from existing pipe in a basement, crawlspace or attic at the city's standard price.
Eastside & Tacoma
- Per line
- $400–$2,100 per line
- Typical job
- $520–$2,750 / grill or fire pit line
Bigger homes and longer runs. Outdoor kitchens, fire pits, pool heaters and standby generators are common here, and those lines run longer and bigger.
Real-World Gas Line Costs in Seattle
Here's what common gas line jobs cost in Seattle in 2026, installed by a licensed pro with fittings and a pressure test.
Range hookup to an existing gas valve — 1–2 hours
Disconnect the old range, fit a new flexible connector, check the shutoff valve, connect, leak-test and light the burners. If there's no gas valve behind the range, it becomes a new-line job at $560–$2,590 with the hookup.
New line to a gas dryer, 15–25 ft — 2–4 hours
A branch off the nearest gas pipe, a shutoff valve, a sediment trap, the hookup and a pressure test. Add $180–$770 if the dryer also needs a new vent to the outside.
Grill or fire pit line across the yard — half a day to a day
Usually buried polyethylene ($25–$64 a foot with trenching), metal risers at each end, a shutoff and a quick-connect at the grill. Concrete or pavers in the way add patching at $130–$520.
Standby generator line — half a day to a day
Generators burn a lot of gas, so the line is usually bigger than a normal branch, and the utility may need to upgrade the meter. Ask whether that fee is in the quote. The permit runs $60–$410.
Gas smell at the range — find and fix the leak
A loose fitting or old connector behind the appliance is the cheap end. A leak inside a wall costs more, and a buried leak with digging costs the most. A service call alone is $95–$350.
How much does gas line installation cost in Seattle?
Between $400 and $2,000 for a short new line to one appliance, and $860 is what most Seattle homeowners pay. The pipe itself is a small part of that; the rest is a licensed plumber's two to four hours, fittings, a shutoff valve and the pressure test. The farther the line runs, the more it costs: black iron is $19–$44 a foot installed.
Bigger jobs cost more. A 50+ ft run is $1,150–$5,150, a grill or fire pit line $520–$2,600, and a standby generator line $640–$3,800. Prices re-checked against 35 sources in November 2026.
Gas line prices in Seattle (2026): new lines, hookups and repairs
A short new line to one appliance costs $400–$2,000, a 50+ ft run $1,150–$5,150, and a standby generator line $640–$3,800.
| Line on the quote | Low | Typical | High |
|---|---|---|---|
| New gas line to one appliance (short run) | $400 | $860 | $2,000 |
| Gas range or cooktop hookup (existing line) | $160 | $290 | $590 |
| Gas dryer hookup (existing line) | $130 | $230 | $460 |
| Outdoor grill or fire pit gas line | $520 | $1,150 | $2,600 |
| Standby generator gas line | $640 | $1,550 | $3,800 |
| New gas line run, 50+ ft | $1,150 | $2,300 | $5,150 |
| Gas leak detection and repair | $200 | $530 | $1,200 |
| Gas meter relocation (utility + plumber) | $1,250 | $3,150 | $5,650 |
The pipe is the cheap part. On a typical $860 job in Seattle, most of the bill is a licensed plumber's time, fittings, the shutoff valve and the pressure test. That's why a 10-foot line and a 25-foot line are often priced close together.
What moves a gas line quote in Seattle:
- Distance — every extra foot of black iron adds about $28 installed; CSST about $21.
- Access — open basements and crawlspaces are quick; finished walls, slabs and attics take longer.
- Indoor vs outdoor — buried yard lines run $25–$64 a foot with trenching.
- Gas load — a generator or tankless heater can need bigger pipe and a utility meter check.
- Permit and test — $60–$410 for the permit; the pressure test should be in the price.
Ask every Seattle gas plumber for the same five things: the pipe type and length, what's included (valve, hookup, test, permit), any wall or yard patching, the labor warranty, and the start date. Compare those, not the headline price. Get a quote for your gas line work →
Gas Line Cost in Seattle by Number of Appliances
One appliance on a short run: $400–$2,000. Two or three appliances: $1,550–$3,850. Gas piping for a whole house with four or more appliances: $2,850–$9,700.
Worked example: a Seattle kitchen remodel that moves a gas range 12 feet and adds a gas dryer in the garage is two short runs in one visit. Expect about $1,150 for the new range line and hookup plus $230 for the dryer hookup on a shared branch, plus a $170 permit — about $1,550 all in, not two full jobs.
Adding a standby generator to that job brings in a bigger pipe and often a meter check: about $1,550 for the generator line on top. Doing it in the same visit saves a second service fee and a second permit.
Seattle Gas Line Costs by Pipe and Job Type
| Pipe or job type | Cost | Best for |
|---|---|---|
| Black iron pipe | $19–$44/ft installed | Indoor runs in basements and exposed spots, and the main trunk line. Rigid, very durable, more labor to cut and thread. |
| CSST flexible gas pipe | $14–$31/ft installed | Snaking through walls, floors and attics with few fittings. Must be bonded to the home's electrical ground. |
| Copper tubing (where allowed) | $14–$26/ft installed | Some areas and utilities allow it for gas; many don't. Ask your plumber and inspector before choosing it. |
| Underground polyethylene (PE) | $25–$64/ft installed | Buried yard lines to a grill, pool heater, generator or detached garage. Outdoor and underground only, with a tracer wire. |
| Short run to one appliance (10–30 ft) | $400–$2,000 per line | A new range, dryer, water heater or fireplace near existing gas pipe. |
| Long run, 50+ ft | $1,150–$5,150 per line | Across the house, up to an attic furnace or out to a detached garage. |
| Outdoor grill or fire pit line | $520–$2,600 per line | Patios and outdoor kitchens. Often a buried PE run with a riser and shutoff. |
| Standby generator line | $640–$3,800 per line | Whole-home backup power. Needs bigger pipe and sometimes a utility meter upgrade. |
| Flexible appliance connector | $130–$460 per hookup | The last few feet from the shutoff valve to a range, dryer or water heater, fitted as part of the hookup. |
Per-foot price vs what you actually pay — the Seattle gas line bill
Black iron costs $19–$44 a foot installed in Seattle, but short jobs don't price by the foot. Most plumbers charge a minimum that covers the trip, fittings, a shutoff valve and the pressure test, which is why a 10–30 ft line still lands at $400–$2,000.
Per-foot pricing matters on long runs. A 50+ ft line costs $1,150–$5,150, and a buried yard line $25–$64 a foot with trenching. On top of that, budget $60–$410 for the permit and any patching of walls or concrete.
What's included in a Seattle gas line quote (and what costs extra)
A standard installed price covers the new pipe and fittings, a licensed plumber's labor, a shutoff valve at the appliance, a sediment trap where needed, and a pressure and leak test before the gas goes on. The headline price often leaves out:
- Permit and inspection — $60–$410, required for new gas piping in most of the US
- The appliance hookup — $160–$590 for a range, if the quote only covers the line
- Wall, floor or yard patching — drywall repair can add up to $710; a small concrete patch $130–$520
- Meter or utility work — a meter move is $1,250–$5,650; some generator jobs need a utility meter upgrade
Ask whether the pressure test and the permit are in the price; a pro who skips either is cutting a corner that matters.
How far the line runs
Distance is the biggest driver after the minimum charge. A short run is $400–$2,000 in Seattle; a 50+ ft run $1,150–$5,150. Putting a new appliance close to existing gas pipe is the easiest saving.
Black iron or CSST
Black iron runs $19–$44 a foot installed and CSST flexible pipe $14–$31. CSST needs fewer fittings through walls but has to be bonded to the electrical ground ($130–$520 if it isn't already).
Access to the existing pipe
An open basement or crawlspace makes a new branch quick. Slab homes, finished ceilings and walls mean drilling, fishing pipe and patching afterward, which adds hours.
Local rules and conditions
Washington is earthquake country, so many homeowners add an automatic seismic gas shutoff valve ($310–$1,250 installed) while a gas plumber is on site. It shuts the gas off at the meter in a strong quake.
Permit and pressure test
New gas piping is pressure-tested before the gas goes on, and most cities inspect it. In Seattle budget $60–$410 for the permit; a separate test and inspection visit is $95–$520.
Gas load and pipe size
Every appliance adds to the gas the pipe has to carry. Adding a generator ($640–$3,800) or a tankless water heater can mean bigger pipe from the meter, and sometimes a utility meter upgrade.
Planned vs emergency
A booked job costs $400–$2,000 for a short run; a leak call starts with a $95–$350 service fee, and after-hours work costs more. If you smell gas, leave first and call the utility from outside.
- Bundle the jobs.One visit, one permit and one pressure test can cover a range, a dryer and a grill line. Each extra trip adds a service fee of $95–$350.
- Put appliances near existing pipe.Every foot counts on longer runs: about $28 a foot for black iron and $21 for CSST installed in Seattle.
- Ask about CSST for runs through finished walls.Flexible pipe needs fewer openings and fittings than threaded iron. Make sure the quote includes bonding to the electrical ground.
- Get an itemized quote.The permit ($60–$410), the pressure test and any patching should be on the quote, not a surprise on the invoice.
- Dig in the right season.Outdoor lines are cheapest when the ground is dry and unfrozen. Call 811 before anyone digs; it's free and marks buried utility lines.
- Get two quotes.Prices for the same short line in Seattle spread from $400 to $2,000. Two written quotes from licensed pros is the easiest way to land near $860.
Seattle gas plumbers often quote by phone. Before you pay a deposit, get these in writing:
- Pipe type and length, and the route it takes
- What the price includes: shutoff valve, sediment trap, hookup and connector
- Permit and inspection, and who pulls the permit
- Pressure test before the gas goes on
- Wall, ceiling or yard patching, and who does it
- CSST bonding to the electrical ground, if CSST is used
- For generators and big appliances: pipe size and whether the meter needs an upgrade
- Labor warranty, start date and payment terms
How much does it cost to run a gas line in Seattle?
$400–$2,000 for a short new line (about 10–30 ft) to one appliance, and $860 is typical. A 50+ ft run costs $1,150–$5,150.
How much does it cost to hook up a gas stove in Seattle?
$160–$590 if the gas valve is already behind the range. If you need a new line too, budget about $560–$2,590 for the line and the hookup together.
What does a gas dryer hookup cost in Seattle?
$130–$460 to connect a dryer to an existing gas valve. A new line to the laundry plus the hookup runs about $530–$2,460.
How much is a gas line to a grill or fire pit in Seattle?
$520–$2,600, usually a buried line with risers, a shutoff and a quick-connect. If gas pipe is already on the outside wall, a stub-out or quick-connect outlet is $320–$1,050.
What does a gas line for a standby generator cost in Seattle?
$640–$3,800 for the gas line alone. Generators need bigger pipe than most appliances, and some need a utility meter upgrade, so ask the gas company early.
How much does gas leak repair cost in Seattle?
$200–$1,200 to find and fix a typical leak, plus a service call of $95–$350 at many companies. Buried leaks that need digging cost more. If you smell gas, leave and call the gas utility or 911 from outside.
Do I need a permit for a gas line in Seattle?
In most cases, yes. New gas piping needs a licensed pro and usually a permit, a pressure test and an inspection. Budget $60–$410 for the permit; your plumber normally pulls it.
How much do gas plumbers charge per hour in Seattle?
$95–$250/hr, with about $140/hr typical. Many quote short jobs as a flat price instead, and some add a service call fee of $95–$350.
Is CSST or black iron cheaper in Seattle?
CSST usually costs less installed: $14–$31 a foot against $19–$44 for black iron, because it needs fewer fittings. CSST must be bonded to the home's electrical ground.
What's included in a Seattle gas line quote?
The pipe, fittings, a shutoff valve, labor and a pressure test. Often extra: the permit ($60–$410), the appliance hookup, and patching walls or concrete.
Prices verified November 2026 · Cross-referenced against 35+ American pricing sources · See methodology
Prices for the Seattle metro area, November 2026. Outer suburbs may vary.
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