Basic
$293 – $681 each
Lead-free brass pressure-reducing valve with single union, isolation valve checked, set to about 50-60 psi and pressure tested

Supply and install/replace a 3/4-1 in. residential water pressure-reducing valve on the main line, including plumber labor and pressure test.
Install Pressure Regulator Valve in Seattle, Washington typically costs $344 to $802 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Seattle are 19.0% higher than the national average for install pressure regulator valve.
National average: $300 – $700 each
$293 – $681 each
Lead-free brass pressure-reducing valve with single union, isolation valve checked, set to about 50-60 psi and pressure tested
$344 – $802 each
Lead-free brass pressure-reducing valve with double unions and built-in strainer, gauge port, set to about 50-60 psi, leak tested
$431 – $1,002 each
Lead-free brass pressure-reducing valve with double unions, strainer and installed pressure gauge, set, leak tested, expansion checked
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $137 – $328 | each |
| Labor | labor | $145 – $328 | each |
| Supplies & Other | supplies | $37 – $87 | each |
| Equipment & Disposal | equipment | $25 – $58 | each |
Brass water pressure reducing valve with adjusting cap and pressure scale
Photo: Raimond Spekking · CC BY-SA 4.0 · Source
Find a pro to do thisWater pressure reducing valve taken apart showing body, spring and piston
Photo: Raimond Spekking · CC BY-SA 4.0 · Source
Find a pro to do thisLabor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local install pressure regulator valve contractors in Seattle for personalized quotes based on your specific project.