Basic
$260 – $606 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 Wilmington, Delaware typically costs $306 to $713 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Wilmington are 4.0% higher than the national average for install pressure regulator valve.
National average: $300 – $700 each
$260 – $606 each
Lead-free brass pressure-reducing valve with single union, isolation valve checked, set to about 50-60 psi and pressure tested
$306 – $713 each
Lead-free brass pressure-reducing valve with double unions and built-in strainer, gauge port, set to about 50-60 psi, leak tested
$383 – $892 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 | $128 – $306 | each |
| Labor | labor | $120 – $272 | each |
| Supplies & Other | supplies | $35 – $81 | each |
| Equipment & Disposal | equipment | $23 – $54 | 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 Wilmington run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local install pressure regulator valve contractors in Wilmington for personalized quotes based on your specific project.