Main-line pressure control

Pressure Reducing Valve Installation

A pressure reducing valve (PRV) on your main water line lowers incoming city water pressure to a safe, steady level for your home’s pipes, fixtures and appliances.

Five Star Service in King, Pierce, and Snohomish Counties*Mention This Ad For $50 Off At The Time of ServiceCall Us Now!$50 OFF
Any Service *
Plumber’s hands working on a supply valve under a kitchen sink
Pressure tested firstGauge reading at the main
Whole-home protectionEvery fixture downstream
Licensed plumbersWA License #PIKEPPS782P7
Pressure checked firstGauge reading before any work
30+ years experienceCombined, from our founders
Local, family ownedBased in Kent, WA

A pressure reducing valve (PRV) is a valve on your main water line that lowers incoming city water pressure to a safe, steady level for your home’s pipes, fixtures and appliances.

A pinhole leak in a copper pipe. A water heater that fails years too soon. A toilet fill valve that constantly runs. These problems often trace back to one overlooked culprit: water pressure that is too high. If your home’s supply line is pushing water at more than 80 PSI, every fixture and appliance is working harder than it should — and wearing out faster because of it.

A pressure reducing valve (PRV) is the solution. Our plumbers at Pike Plumbing & Sewer install PRVs on the main water supply line, giving your entire home the protection it needs from the moment water enters the house.

Pressure Reducing Valve for House

How a pressure reducing valve lowers street water pressure before it reaches the houseDiagram of a water supply line running from the street main, through a pressure reducing valve, and into a house. A gauge before the valve reads high street pressure over 80 PSI; a gauge after the valve reads regulated pressure in the safe range for fixtures.Street mainPressure reducing valveYour homeHigh street pressure(over 80 PSI)Regulated pressure(safe range for fixtures)Flow
The PRV sits on the main supply line, so every fixture downstream receives regulated pressure.

A pressure reducing valve for a house is a mechanical device installed on the main water supply line that automatically lowers incoming water pressure to a safe, consistent level before it reaches your fixtures. Without one, your pipes and appliances absorb the full force of municipal supply pressure, which can run well above what residential plumbing is designed to handle.

Pressure Reducing Valve Installation in Everett, Bellevue, Kent, and Granite Falls

Homes in Everett, Bellevue, Kent, and Granite Falls connect to municipal systems that deliver water at varying pressures depending on elevation and neighborhood. That variability makes a PRV especially important in the Puget Sound region. It keeps your pressure steady regardless of what the street main is doing that day. Our team checks your incoming pressure with a gauge before recommending any work. If your pressure is low rather than high, start with our guide on how to fix water pressure.

Signs Your Home May Need a PRV

Four signs a home may need a pressure reducing valveIcon row: a faucet spraying too hard, an appliance wearing out early, a toilet that keeps running, and a pinhole leak in copper pipe.Faucets spraytoo hardAppliances wearout earlyToilet keepsrunningPinhole leaksin copper pipe
  • Faucets and showerheads that spray harder than expected or are difficult to control
  • Appliances like dishwashers and washing machines that wear out faster than their rated lifespan
  • Frequent toilet running caused by fill valves struggling against elevated pressure
  • Pinhole leaks in copper piping that appear without obvious cause

Key Takeaway

If you find standing water near your water heater or notice unexplained wet spots along supply lines, call us before assuming it is a simple fix. Elevated pressure can accelerate leaks in ways that are not always visible right away. Active drips are handled through our water leak repair service.

PRV Plumbing Service: What Our Installation Includes

Our PRV plumbing service begins with a pressure reading at your main supply line. We use a gauge to get an accurate measurement, no guessing. If pressure is running higher than recommended, we discuss the right valve size and location with you before any work begins.

Installation happens on the main water supply line, typically near where the water enters the home. That placement means every faucet, toilet, appliance, and fixture downstream benefits from the regulated pressure. We test the system after installation to confirm the valve is set correctly and the pressure reading is within a safe range. Because a PRV creates a closed system, we also check whether your water heater needs a thermal expansion tank and confirm any backflow assembly is working as it should.

Clear communication and follow-through is how our team operates on every job, including PRV installations.

How PRV Installation Protects Your Fixtures and Appliances

Water heaters, dishwashers, refrigerator ice makers, and washing machines all have pressure ratings from their manufacturers. Running them above those ratings shortens their service life. A properly installed PRV keeps pressure within the range those appliances were designed for, which means fewer repairs and longer useful life across your whole home.

Our plumbers have completed over 5,000 projects across King, Pierce, and Snohomish Counties. Anthony Estrella and Corey Moline bring 30+ years of combined plumbing experience to that work and they have seen what happens when PRVs fail or are never installed, as well as how much smoother a home runs when the pressure is right.

Pike Plumbing & Sewer holds license PIKEPPS782P7 and is a Chamber of Commerce member. When we work in your home, you are getting a licensed, accountable team that stands behind its work.

When to Book Your PRV Plumbing Service

Do not wait for a burst supply line or a failed appliance to find out your pressure is too high. A pressure check takes minutes. If your home is older and has never had a PRV inspected, or if you have noticed any of the warning signs above, now is the right time to call. A pressure reading is also part of every whole-home plumbing inspection we perform.

We serve Everett, Bellevue, Kent, and Granite Falls with fast response and straightforward service. Whether you need a new PRV installed or an existing valve inspected and adjusted, our plumbers are ready to help.

Call us or request service online through our contact page. We will check your pressure, walk you through what we find, and take care of the installation the right way the first time.

Frequently Asked Questions About Pressure Reducing Valve Installation

What is a pressure reducing valve and what does it do?

A pressure reducing valve is a device installed on your main water supply line that automatically lowers incoming water pressure to a safe level for your home’s plumbing system. It protects pipes, fixtures, and appliances from the stress of elevated pressure, which can exceed what residential systems are designed to handle.

How do I know if my home’s water pressure is too high?

Common signs include banging pipes when faucets are shut off, faucets that spray harder than normal, appliances that wear out sooner than expected, and frequent toilet running. The most reliable way to confirm is a gauge reading from a licensed plumber. Our team checks pressure before recommending any work.

Where is a PRV installed in a house?

A PRV is installed on the main water supply line, typically near the point where water enters the home. This location means every fixture and appliance in the house receives regulated pressure from a single control point, making it the most effective place to manage whole-home pressure.

How long does a pressure reducing valve last?

Most PRVs last between 10 and 15 years with normal use, though lifespan varies based on water quality, usage patterns, and the valve’s original installation quality. If your existing PRV is approaching that age or you have noticed pressure fluctuations, it is worth having a plumber inspect it.

Do I need a permit for PRV installation in Washington?

Permit requirements for PRV installation vary by jurisdiction in Washington State. Our plumbers are familiar with local requirements across Everett, Bellevue, Kent, and Granite Falls and will let you know what applies to your specific job before work begins.

Related pages