Basic
$1,460 – $4,866 per project
1 in. PEX service line in an open trench at frost depth with tracer wire, approved tie-ins at meter and house, pressure tested
How Much Does Install Water Line Cost in Seattle, Washington?
Replace/install the main water service line from the meter or curb stop to the house (typically 25-75 ft of PEX or copper, trenched), including tie-ins and permit.
Install Water Line in Seattle, Washington typically costs $1,718 to $5,725 per project as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Install Water Line in Seattle, Washington
$1,718 – $5,725
per projectPrices in Seattle are 19.0% higher than the national average for install water line.
National average: $1,500 – $5,000 per project
What you get at each price level
Standard
$1,718 – $5,725 per project
1 in. PEX service line on sand bedding with tracer wire, new full-port valve at the house, backfilled and pressure tested
Premium
$2,147 – $7,156 per project
1 in. Type K copper service line on sand bedding, sleeved foundation entry, new full-port main valve, compacted backfill
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $702 – $2,340 | job |
| Labor | labor | $704 – $2,345 | job |
| Supplies & Other | supplies | $187 – $624 | job |
| Equipment & Disposal | equipment | $125 – $416 | job |
Prices adjusted for Seattle local market conditions.
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($675.00-$2,250.00 per project)
- Labor ($525.00-$1,750.00 per project)
- Supplies & Other ($180.00-$600.00 per project)
- Equipment & Disposal ($120.00-$400.00 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
References
- Plumbing Price Guide: Water line replacement cost 2026, plumbingpriceguide.com, retrieved Nov 2026
- Plumbing Estimator Pros: Water line replacement cost 2026, plumbingestimatorpros.com, retrieved Nov 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 water line contractors in Seattle for personalized quotes based on your specific project.