Water Pressure Regulator Replacement
Modern Perspective Plumbing tests water pressure and repairs or replaces pressure regulators across San Luis Obispo County and Santa Maria. Normal house pressure is around 50 to 60 psi. California code calls for a regulator when street pressure is over 80 psi. Call (805) 788-8444. Coming out to look is free, and you get the price before any work starts.
CA C-36 Licensed #1102487
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Signs your water pressure is off
- Pipes bang or hammer when a faucet or appliance shuts off
- Toilets run or refill on their own
- Several faucets start dripping around the same time
- Pinhole leaks keep turning up in different places
- A water heater or appliance fails early
- Weak flow at every fixture, or pressure that swings up and down
Repair or replace?
A gauge tells us what's actually going on before anyone replaces anything. If the regulator has failed, replacing it is usually the lasting fix. If pressure is high and the home has no regulator, we'll explain what it takes to add one. You'll see the reading and get the price before we start.
What we do
- Water pressure testing with a gauge
- Pressure regulator (PRV) replacement
- Setting and checking the new regulator
- Expansion tanks for closed water systems
- Main shutoff valve replacement
- Leak checks after high pressure damage
High pressure and repeat pinhole leaks often go together. If you're already seeing leaks, our leak detection service can find them, and our guide to California's 80 psi rule explains how to test your pressure yourself.
Common questions
+ What should my house water pressure be?
Around 50 to 60 psi is a normal, safe range for most homes. Over about 80 psi is too high.
+ How can I test my water pressure?
Thread a pressure gauge onto an outdoor hose bibb, make sure no water is running in the house, and open the bibb fully. Call us if it reads over 80 psi, reads low, or jumps around.
+ Where is my pressure regulator?
Usually near the main shutoff, where the water line enters the house. That's often at the front of the house or in the garage. Not every home has one.
+ Should a pressure regulator be repaired or replaced?
Usually replaced. Rebuild kits exist, but a new regulator is the longer-lasting fix. We set it and check it with a gauge after it's installed.
+ Why would I need an expansion tank with a new regulator?
A regulator can make your plumbing a closed system, so water expanding in the water heater has nowhere to go and pressure spikes. An expansion tank gives it somewhere to go.
+ Why is the pressure low at only one faucet?
Low pressure at one fixture usually points to that fixture, such as a clogged aerator or cartridge. Low pressure throughout the house is when we look at the regulator and supply lines.
+ Do you serve my area?
We work across San Luis Obispo County and Santa Maria from our shop in Grover Beach. Call (805) 788-8444 and we'll tell you right away.
Ready to talk it through? Contact us or see what customers say on our reviews page.
Pressure problems? Let's test it.
Call about high or low water pressure, or book a visit online in under a minute.
Last updated · Reviewed by Ed Cota, CA C-36 Lic. #1102487