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Water pressure regulator replacement in Los Angeles

A pressure regulator sits on your main water line and lowers the pressure coming in from the street. When it fails, high pressure quietly wears out every faucet, toilet and appliance in the house.

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What needs fixing?

What a pressure regulator does

Water from the street can arrive at very high pressure, especially in hilly areas. A pressure regulator, also called a PRV and usually found near your main shutoff, lowers it to a safe level for the house.

Regulators wear out over time. When one fails, pressure creeps up and starts wearing out faucets, toilet valves, water heater parts and appliance hoses, often without anyone noticing.

Brass valves on copper water lines

Signs your pressure is too high

Banging pipesA bang when a faucet or washer shuts off.
Toilets running on their ownHigh pressure pushes past the fill valve.
Dripping faucetsWashers and cartridges wear out fast.
A dripping relief valveOn the water heater, from pressure buildup.
A very hard sprayShowers and faucets that blast water.
Leaks at fixturesSupply lines and fittings that keep failing.

What we do

  • Test your water pressure with a gauge.
  • Adjust or replace the pressure regulator.
  • Check for an expansion tank at the water heater, which most homes with a regulator need.
  • Retest to make sure the pressure is in a safe range.
Worth knowing

California plumbing code requires a pressure regulator when street pressure is over 80 psi. Most homes do best between about 50 and 70 psi.

What affects the price

You get a written price before any work starts. These are the things that move it.

Regulator sizeMatched to the size of your main line.
LocationAn easy-to-reach regulator is quicker to replace.
Expansion tankOften added at the water heater at the same time.

How a visit works

  1. Book or callBook online in two quick steps, or call (818) 200-8719. We call you back within 2 hours to set a time.
  2. Get a written priceYour plumber finds the problem and gives you the price in writing. Nothing starts until you say yes.
  3. Fixed and cleaned upWe fix it, test it and clean up before we leave. Labor is covered by our 30-day warranty.

Water pressure regulators questions

What should my water pressure be?

Under 80 psi, and most homes do best between about 50 and 70 psi. You can check it with an inexpensive gauge on an outdoor hose bib.

How long does a pressure regulator last?

Often 10 to 15 years. If yours is older than that, it’s worth testing.

Where is my pressure regulator?

Usually on the main water line near where it enters the house, often right next to the main shutoff valve. It looks like a brass bell on the pipe.

Water pressure regulators near you

We provide water pressure regulators across Los Angeles and the San Fernando Valley.

Sun ValleyPanorama CityNorth HollywoodVan NuysLake BalboaValley VillageValley GlenPacoimaArletaMission HillsNorth HillsSylmarSan FernandoGranada HillsNorthridgePorter RanchSunland-TujungaLake View TerraceShadow HillsStudio CitySherman OaksEncinoToluca LakeResedaTarzanaWoodland HillsCanoga ParkWinnetkaWest HillsChatsworthBurbankGlendalePasadenaHollywoodAll areas

Related services

Leak detectionHidden leaks found and fixed.Water heater repairNo hot water, leaks and noises fixed.Toilet repairRunning, leaking, clogged or new.RepipingOld galvanized pipes replaced.

Helpful guides

How to find your main water shutoff valveWhy is my water pressure low? 7 common causes

Need help with water pressure regulators?

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