Plumbing · Los Angeles County

Pressure Regulators in Los Angeles

Water pressure that’s too high quietly destroys pipes, fixtures, and appliances. A properly installed pressure regulator protects everything downstream, for years.

  • Pressure tested & documented
  • PRV installation, adjustment & replacement
  • Protects pipes, heaters & appliances
  • Licensed, bonded & insured, CA Lic #885156
20+ YearsFamily-owned, serving Los Angeles
4.8★ on GoogleFrom 144 customer reviews
24/7 Emergency ServiceA real person answers, day or night
Upfront PricingA flat price in writing before work starts

Protect Your Plumbing With Proper Pressure

Street pressure across Los Angeles County often runs far above the 80 PSI maximum that California code allows inside a home. Sustained high pressure stresses every joint, hammers valves shut, shortens water heater life, and turns small weaknesses into burst lines. Pressure that’s too low, meanwhile, makes daily life frustrating.

ServiStar tests your static and working pressure, then installs, adjusts, or replaces the pressure regulating valve (PRV) your system needs, correctly sized, code-compliant, and set to protect your plumbing, water heater, and appliances across Los Angeles County and the San Fernando Valley.

Pressure regulator valve repair

Testing & Adjustment

Know your numbers, then dial them in. Many pressure problems are solved with an adjustment, not a part.

  • Static & working pressure measured
  • Readings documented for your records
  • Existing PRVs adjusted to spec
  • Thermal expansion evaluated
  • Honest advice if nothing’s wrong

Installation & Replacement

When the regulator is missing, failed, or drifting, the fix that protects everything downstream.

  • Correctly sized PRV installation
  • Failed regulator replacement
  • Expansion tanks where code requires
  • Before-and-after pressure readings
  • Code-compliant to the 80 PSI limit

Pressure Regulator Services

Tested first, then fixed with the right part, not the nearest one.

ServiStar technician soldering a copper pipe repair

PRV Installation

New regulators installed where homes have none, often the cheapest insurance a plumbing system can get.

ServiStar technician using electronic leak detection equipment

Adjustment & Testing

Existing regulators tested and dialed to the right pressure for your home, with readings documented.

Commercial plumbing valve repair

PRV Replacement

Failed or aging regulators (typically 10 to 15 years) replaced before creeping pressure causes damage.

Signs of a Pressure Problem

High pressure damages quietly, the symptoms show up in everything except the pressure itself. Watch for these:

  • Banging or hammering pipes
  • Faucets that spray or splash violently
  • Running toilets and dripping faucets
  • Water heater relief valve discharging
  • Appliance hoses failing early
  • Pressure noticeably different room to room
  • Pressure above 80 PSI on a gauge test
  • Regulator more than 10 to 15 years old

How Regulator Service Works

High water pressure is the quietest destroyer in plumbing: it never announces itself, but every burst flex line, short-lived water heater, and hammering pipe traces back to it.

We measure first, static and under flow, and show you the numbers. Sometimes the fix is a five-minute adjustment. Sometimes it’s a new regulator. The readings decide, not the invoice.

Every install ends with before-and-after numbers in hand, so you know exactly what your plumbing is living with now.

Good to know: California code caps residential pressure at 80 PSI, many local streets deliver well over 100. A $10 gauge test tells you where you stand.

1Schedule your visit
Call (818) 873-0613 or send the quick form. Same-day appointments available across most of LA County.
2Diagnosis & honest options
A licensed technician inspects the issue and explains what we found in plain language, with every option on the table.
3Upfront flat-rate price
You approve the price in writing before any work begins. The price you approve is the price you pay.
4Repair, test & clean up
We complete the work, test it under real conditions, and leave the area cleaner than we found it.

Pressure Regulators FAQs

Between 45 and 65 PSI is ideal for most homes. California code requires regulation when pressure exceeds 80 PSI, which is common across Los Angeles County supply zones.
Typically 10-15 years. As they age they drift, letting pressure creep upward, often unnoticed until fixtures and appliances start failing.
Usually on the main water line where it enters the home, often near the front hose bib or in the garage. No regulator there frequently means the home does not have one.
Yes, thermal expansion against high pressure stresses the tank and triggers the relief valve. Regulators paired with expansion tanks significantly extend water heater life.

Recent System Projects

ServiStar water heater installation project, Los Angeles
ServiStar commercial plumbing project, Los Angeles
ServiStar plumbing project, Los Angeles
ServiStar commercial plumbing project, Los Angeles

Rated 4.8★ by Our LA County Neighbors

Real Google reviews from homeowners and businesses we’ve served across Los Angeles County, unfiltered and updated automatically.

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Haidy Mazate profile picture
Haidy Mazate
2 days ago
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Man oh mannnn. Bought an old home, found out the corrosion on the pipes masked the broken parts. When I say disaster I mean disgusting. The Servistar pros saved the day. From sun up to down. Was it a tad more expensive than I wanted to pay for? Yes, but who WANTS to pay for plumbing issues? Nobody. When I say those pipes were done up right. I mean wow!!! Dig the whole ditch went under the house and closed everything up. Unbelievable! I won't trust anyone else.
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Kendyll Melton profile picture
Kendyll Melton
3 days ago
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Wow Mike and Dan y'all did that. Now we have our hot water back My family really appreciate You being on time very patient explained everything to myself even though my husband was not at home and I knew nothing about plumbing you were very patient and explained everything you guys stayed at your name at the doors you guys were very professional we really appreciate it I wish I can give you more stars keep up the good work and great customer service!
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Chloe Gibbs profile picture
Chloe Gibbs
11 days ago
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+0
Water heater completely flatlined on us and finding someone who could actually fix it right away felt like a mission, when we were staring down days of freezing cold showers with a full house. Servistar came through right on time, diagnosed a shot burner instantly, and actually had the replacement parts sitting right there in his truck. He did not try to pressure us into buying an expensive brand new unit we clearly did not need. He just swapped out the bad parts, got everything dialed in, and had hot water pumping again in under an hour. Keeping their number saved.
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Saianna Smith profile picture
Saianna Smith
15 days ago
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We live in an older house and although the plumbing was redone sometime in the 90's, it still has its set of problems. These problems always seem to happen over a holiday or long weekend lol. Thankfully I found Servistar a few years back and can always count on them to come out quickly without charging hundreds of dollars extra just for prompt "emergency" service. Michael and Daniel are the absolute sweetest best. Another great plus is my boys love them and will watch patiently and quietly while they work. Hey, free babysitting thrown into the mix always works for me! I have referred them to so many of my neighbors and they have never disappointed. They have been especially good with elderly neighbors who always get taken advantage of by less reputable companies.
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Nolan Green profile picture
Nolan Green
16 days ago
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Excellent service and great communication on a new tankless water heater install. Would recommend them especially for that.
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Alyssa Marquez profile picture
Alyssa Marquez
43 days ago
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Excellent service from Mike, They were able to come out on a Sunday night and took care of a drain blocked by root balls that you could see on camera and that came out on the snake. They provided a very reasonable quote to hydro jet the line the following day. I highly recommend Servistar for any plumbing needs and we will be using them for any future plumbing jobs as well.
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stafford faulkner profile picture
stafford faulkner
51 days ago
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awesome company 100% recommend!
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Annie Barillas profile picture
Annie Barillas
72 days ago
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I have a 20+ year old Bradford White gas water heater that I wanted replaced before next year when electric heaters may be required. Servistar was one of the BW recommended experts. I called up and a couple of guys showed up to look at the job. Subsequently, the manager called up with more information. The two men returned to complete the job efficiently and left with everything neat. They also installed a faucet to a deep laundry sink. I thought they would have to pull the sink out to get at the faucet, but they managed to do it in place. Their quote was the most detailed I have seen for any job. The terms and conditions were easily understandable. I couldn't be happier with the service. They are my plumbers now.
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Natalie molina profile picture
Natalie molina
73 days ago
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My husband is a commercial builder, so we have incredibly high standards for trade work and look at contractor quotes with a magnifying glass. We knew the old cast iron sewer line under our slab was failing, and another company said the only fix was jackhammering our entire hallway floor. I called Servistar to see if we could do a structural epoxy coating instead. The team came out right away, hydro jetted the line, and used a specialized chain tool before applying the coating. Even my husband was thoroughly impressed by how clean their lines were. Their quote was fair after doing lots of research.
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Camila profile picture
Camila
76 days ago
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I ended up having a pipe leak that damaged part of my ceiling during the night. Luckily Servistar was quick to respond and came in asap the next morning and went straight to work! They were both really professional and thorough. They were able to get my pipes replaced within 2 hours and even gave me advice for a different plumbing question that I had. The price was very reasonable as well given the high quality work. Definitely recommend choosing them their the best in the city!
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jessica sanchez profile picture
jessica sanchez
86 days ago
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8 days without water; different company spent several hours over 3 different days but could not identify the problem. Michael returned my call promptly on a late Saturday afternoon, Daniel was there shortly thereafter. He found the problem quickly and put a plan in place to our relief! Excellent, fast, friendly, competent service - they have definitely earned our business!
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Kyle Stephen Agdigos profile picture
Kyle Stephen Agdigos
92 days ago
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We had a full-on sewer line catastrophe, and they saved us. We called him in a panic for a hydro-jet emergency, and he showed up right away. Turns out, the whole sewer line had collapsed. He walked us through everything--tried to avoid a full replacement--but yeah, we needed one. The terrain was brutal, and past plumbers made a mess, but Michael powered through. He got it done in a week, made sure we understood the whole deal, gave us a fair price, and said this new line should last about 150 years. We'll check back in a century, right? Seriously--five stars, and I'd call him again, no question.
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Aileen profile picture
Aileen
101 days ago
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We needed full replacement of the sewer drain system of our 1600 sq. ft. house. The crew replaced the entire system under the house and out to the sidewalk in 2 days. Very timely and responsive. Thorough clean up after the work was completed. Very professional job, latest equipment, and adequate number of workers. Good price, too.
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Elizabeth Orellana profile picture
Elizabeth Orellana
101 days ago
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Michael was wonderful! He arrived right on time and his visit was quick and helpful. He solved our main problem in the kitchen within a matter of minutes, and was able to give guidance on next steps for a separate irrigation issue in our back yard as well. Very professional and efficient. Highly recommend! :)
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Jasmine Maldonado profile picture
Jasmine Maldonado
104 days ago
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My main sewer line under the kitchen slab was backed up badly and the initial diagnostic showed our old cast iron pipe was completely rotting out from the inside. I thought the crew would have to jackhammer through my concrete floors inside our home in Burbank which would have been an absolute nightmare. Instead the guys explained they could do an epoxy coating completely from the toilet line and an outside clean out. They started with a heavy hydro jetting to clear the debris and then used a specialized chain drill with a diamond tip to reinstate the rough pipe walls. Looking at the camera footage after the lining cured was incredible because it looks brand new. I am so happy they did not have to do what I thought was going to be massive structural damage to the property. Everything runs perfectly now without a single mess left behind.
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Ivana Taylor profile picture
Ivana Taylor
105 days ago
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Our hot water heater stopped working and we couldn't get the pilot light to light or stay lit. It's an older unit so we figured it might be done. We had another company come out first and the quote they gave us to replace it was high so we called Servistar Plumbing for a second opinion and they showed up within the hour, thank God they are close to Studio City.

Daniel was our tech and he was great, super honest and straightforward. He explained what was going on clearly and didn't try to sell us anything we didn't need. The estimate he gave us was very reasonable (like 30% cheaper than other company!) and they were able to replace it the same day.
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Kodi Trevino profile picture
Kodi Trevino
105 days ago
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Great response time on my request to come out and snake my toilet. Originally was going to come Wednesday but came a day early and got it all fixed in the matter of a few minutes. Very happy with the communication or service. Would 100% recommend.
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Chris Perez profile picture
Chris Perez
106 days ago
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I had a tankless water heater issue and I found them thru a quick google search! Servistar responded and were able to send someone out next workday. Team professionally answered my many questions and offered range of solutions. We decided to change out the heater completely and he had a crew onsite very quickly to start/complete the job in the same day. Prices seemed reasonable.
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Alex Mcclain profile picture
Alex Mcclain
106 days ago
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Recently I learned I needed to replace a 60 foot 70 year old sewer line at a tenant occupied house. I researched several plumbing companies and decided on these plumbers in Sherman Oaks. My concern was the fact that I was going to be out of town when the work took place. I asked my son to monitor the work while I was gone. The project was done quickly and efficiently. Each day I received a text, including a photo, of the men coming to work that day. At the completion I received numerous photos at various stages of the replacement. My son also texted me photos saying "Great job, very professional. Pros make it easy. Good choice mom”. BEST PLUMBERS!
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Edidiong Akpakpan profile picture
Edidiong Akpakpan
107 days ago
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Had my sewer pipe clogged just from time and use. Called these folks Friday at noon and sent one of their best employees for the job and arrived in a few hours. Got a good price quote to also replace 2 toilets. Daniel was the plumber that came through and worked hard on a Friday night with a 5:30P.M. arrival time! The supervisor Micheal came out to my house later in the evening to help Daniel out and finished the job by 1015p.m. Michael did recommend a "clear out" and showed me w detailed video cam of my sewage pipes 75FT. down. I was impressed with their overall patience, professionalism and hard work! Will use them again in the future!

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