Basic
$445 – $550 per project
Black iron branch line sized for the appliance load from the existing supply, threaded fittings, strapped, shutoff valve and sediment trap, pressure tested
How Much Does Install Gas Line Cost in Seattle, Washington?
Install Gas Line: national installed price range, materials and labor breakdown, and local pricing by ZIP code.
Install Gas Line in Seattle, Washington typically costs $523 to $647 per project as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Install Gas Line in Seattle, Washington
$523 – $647
per projectPrices in Seattle are 19.0% higher than the national average for install gas line.
National average: $457 – $565 per project
What you get at each price level
Standard
$523 – $647 per project
Black iron line sized for the load, strapped to framing, ground-joint union, accessible shutoff valve and sediment trap at the appliance, pressure tested
Premium
$654 – $809 per project
Black iron line sized for the load, strapped with protective sleeves through framing, union, labeled shutoff and sediment trap, coated exposed pipe, pressure tested
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $214 – $265 | job |
| Labor | labor | $214 – $265 | job |
| Supplies & Other | supplies | $57 – $71 | job |
| Equipment & Disposal | equipment | $38 – $47 | job |
Prices adjusted for Seattle local market conditions.
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($205.63-$254.35 per project)
- Labor ($159.93-$197.83 per project)
- Supplies & Other ($456.95-$565.23 per project)
- Equipment & Disposal ($456.95-$565.23 per project)
Local Price Adjustments
Material costs4.0% above avg
Labor costs34.0% above avg
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Frequently Asked Questions
How we price this
BuildX Pro researches and reviews the national price range for Install Gas Line, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked Sep 2026.
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
Get Free Estimates in Seattle
Connect with local install gas line contractors in Seattle for personalized quotes based on your specific project.