Shower Valve Repair & Replacement — Los Angeles & the Valleys

Dripping or Scalding Shower? We Fix the Valve, Not Your Whole Wall. 

Most shower problems are a worn cartridge, not a demolition project. A licensed, family-owned LA plumber since 1997 — we repair first, replace when it’s genuinely needed, and keep tile disruption to the minimum. 

  • Licensed CA #1067555
  • Bonded & Insured
  • Since 1997
  • 5.0 ★ (300+ ratings)

Book an Appointment

Request Service — Confirmed Within 1 Hour

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What’s happening?

Constant drip from the showerhead or tub spout

Scalding when someone flushes or runs the washer (no anti-scald protection)

Can’t get hot water — or the temperature swings on its own

Handle stuck, spinning, or snapped off

Water comes from the spout and the head at once (bad diverter)

Leak showing up in the ceiling or wall below the shower

A dripping shower can waste hundreds of gallons a month.

Why LA shower valves fail (and what it really takes to fix)

Almost every shower complaint we get traces to the cartridge inside the valve — the part that mixes hot and cold. In our area, those wear out faster than the manufacturer ever intended because of hard water: mineral scale builds up on the cartridge and seats, so the handle gets stiff, the seal drips, and temperature control drifts. That’s why a cartridge replacement solves the large majority of these calls — no tile removal, done in a visit.

When the valve body itself is failing — corroded, cracked, obsolete with no parts available (common in pre-1970 homes across Pasadena, Alhambra, Glendale, and the older Valley tracts where original valves are still in service) — the valve has to be replaced, and that means getting behind the wall. Where we can, we work through an access panel from the back side (a closet or adjoining room) instead of cutting your tile. When tile must be opened, we tell you before we start, not after.

One safety note worth knowing: modern code calls for anti-scald (pressure-balancing or thermostatic) valves. If your shower still swings hot when a toilet flushes, you likely have an old non-balanced valve — upgrading is a genuine safety improvement, especially with kids or elderly family in the house.

shower valve replacement

What we do

Cartridge replacement 

Fixes most drips & stiff handles, no tile removal

Full valve replacement

Including obsolete/discontinued valves

Anti-scald upgrade

Pressure-balancing / thermostatic

Diverter & tub-spout repair 

When the real problem is downstream

Access-panel approach

Avoid cutting tile where possible

Trim & fixture installation

Install new shower trim and fixtures

How it works

01

Call/request online.

Confirmed within one hour.

02

We diagnose

Cartridge vs. valve body — and quote in writing, including exactly what (if anything) must be opened.

03

We repair or replace

Test the temperature control. Guaranteed.

professional shower valve repair in pasadena

Cost

A cartridge repair is a modest flat-rate job and solves most cases. A full valve replacement costs more because of access and the valve itself — and we’ll tell you up front whether we can reach it from an access panel or whether the tile has to be opened. We never open a wall without your say-so.

Why LA chooses Advantage Plumbing & Rooter

24/7 real people

Written prices up front

Licensed CA #1067555

Family-owned since 1997

Tile-sparing approach where possible

Workmanship guarantee

Rated 5.0 ★ across 300+ reviews

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Richard Pepper profile picture
Richard Pepper
9 October 2026
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Amazing technicians, knowledgeable, incredible Office help
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Bill Tom
8 October 2026
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Always professional. Thanks Albert and Warren.
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Alberto De Diego
8 October 2026
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Frank with Advantage Plumbing is really excellent. He’s been out to our house in South Pasadena a few times. He’s always on time, can come on short notice when needed, and is super professional and capable. Always gets things fixed quickly at a fair and reasonable rate. He’s also a super nice guy. Always asks about our dog, for example, who’s been having medical issues lately! Class act.
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Angelo Incardona
7 October 2026
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Frank (the plumber) did a great job installing our tankless water heater. It was a tough job under the blazing heat conditions.
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Michele Hamburger
3 October 2026
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Simply the best. I was able to reach someone at 10pm on Friday night and they arrived at 6am Saturday and fixed my water heater in 30 min. Trustworthy and skilled, highly recommend
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Ann Kochakji
3 October 2026
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We've hired Advantage Plumbers for three jobs so far and are very happy with their work. Their prices are reasonable and the plumbers go out of their way to make sure the job is done right. They make suggestions when needed which is helpful and even pick up parts when necessary. We would especially like to acknowledge Victor and his assistant for fixing the leak in our outdoor pipes.
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Mihran Asatourian
2 October 2026
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Great company. Called them for a leak under kitchen sink (cat stood on pipe and the weight separated the connections). They offered to send someone same-day, but I opted for next morning instead. I love that they use a one hour appointment window, instead of 3-5 hours like other companies. Technician, Victor, arrived right on time, explained the issue to me and pointed out a couple other problems, fixed everything and tested everything thoroughly before leaving. I told him about the cat and he made sure to "cat proof" the connections. Like I said, great company, don't hesitate to use them.
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Mark J
1 October 2026
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Frank has done work at my properties for ages. He's always been congenial, forthright, and honest with me, even erring on the side of caution when necessary because he knows that doing a job right is the utmost importance.
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Abira Ali
1 October 2026
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We had Advantage plumber Frank come over to flush our tankless hot water system. He was very efficient, friendly and got everything done and operating- no fuss- no muss- so nice to have hot water. Thanks Frank!
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Andrew Sanesi
30 September 2026
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The Best! Period
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Annie Alwin
28 September 2026
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Love Steve and the Advantage team. Day or night, they get the job done. So glad they are my plumbers. They always get it done right, are friendly, courteous and so knowledgeable!
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Daniel Haas profile picture
Daniel Haas
26 September 2026
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Advantage Plumbing repiped my entire crawl space, including the main line under my house and the lateral line in my front yard, this past week. I interviewed six companies before choosing them, and from the first visit through project completion, the experience was exceptional. They gave me a fair, respectable quote, and the work was fully permitted (Advantage pulled the permit at a modest cost). Even the city inspector said, "Nice work!" The crew was punctual, courteous, hardworking, and clearly knowledgeable — top-notch in every way. For the front yard line, they used pipe-bursting technology, so my yard didn't need to be dug up. The new line will last 100 years. Every part of the job — proper strapping, quality materials, multiple cleanouts — was done to the highest standard. This was truly exceptional work, and I'm grateful for their dedication. Thank you to Steve, Johny, and the entire crew for a job so well done! Separately, before the repiping project, I had Advantage come out to snake a clogged tub drain. They arrived the same day and did a great job. Alfonso and Jose were punctual, kind, friendly, and attentive — another job well done!
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Grant McCullagh
25 September 2026
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We are very pleased with Steve’s service, keep up the good work!!
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Debbie Kurth
25 September 2026
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There are simply not enough complements I can give this team. I had a water dripping on the street issue that ai could not figure out . When soap bubbles appeared, we realize the problem was the sewer . Steve rearranged his team schedule to get the problem fixed and fast. The pipe, on a hillside was scoped with a camera revealing the severity of the 90 year old cast iron pipes. A replacement was needed. One can only shudder to think the cost of that. Using new technology called pipe lining, not only was the pipe repaired from the inside out , they even managed to clean the pipe below the street, saving us thousands of dollars!! . They even found a fresh water leak and were able to repair it while the pipe was exposed. The entire job was done in a day. I simply cannot sing high enough praises for Steve and his team. Professional, caring, on time with a fanatic work ethic. Steve truly cares about people and not just money . Look no further when needing help with an unpleasant issue of plumbing. UPDATE: Had another leaking pipe problem. . Advantage sent Plummer Frank whose long experience in the field, quickly and easily fixed the problem. Thank you!
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Alexis Bradley
24 September 2026
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Victor with Advantage Plumbing & Rooter was fantastic to work with. He quickly solved our water pressure issue, took the time to listen to our longer-term plumbing goals, and scheduled a follow-up to address everything else we need. We were thoroughly impressed by his expertise. Highly recommend!
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Jeffrey Woldhuis
24 September 2026
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Advantage Plumbing helped me out tremendously. Their guy Frank is great. I had an upstairs leak in a wall that he investigated and found the location of quickly without damaging too much of my wall. I would highly recommend this company.
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Shelby Button Cotten
23 September 2026
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Frank came by to fix our clogged sinks and he was friendly, knowledgeable, and efficient. Can't ask for more from a plumber! I will be recommending to my neighbors.
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Rachael Cottrell
23 September 2026
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Jose came to service a dishwasher draining issue and he came with a happy and knowledgeable attitude. So grateful for honest service people, HIGHLY RECOMMEND Advantage!!!!
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Casey R profile picture
Casey R
23 September 2026
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I’m so glad we went with Advantage Plumbing for our water heater replacement. I expected the process to be a bit of a headache, but they made it surprisingly easy. They showed up right on time, were friendly and respectful, and completed the job without any unnecessary complications. The new water heater was installed efficiently, and everything was cleaned up and left in order. I really appreciated how easy they were to work with. I’d happily recommend Advantage Plumbing to friends and family and would definitely call them again.
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Don Straney
21 September 2026
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Fast, dependable, kept me informed.
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Frequently asked questions

Usually not. Most problems are with the cartridge, replaceable from the front. If the valve body must be replaced, we look for an access panel from the back side first — and we always tell you before opening anything. 

You likely have an older valve without pressure balancing. An anti-scald valve upgrade fixes it and is a real safety improvement. 

Hard water. Mineral scale attacks the cartridge and seals — it’s the most common cause we see in this area. 

Often yes. If it’s genuinely obsolete, we’ll tell you and quote a replacement. 

Yes — a steady drip wastes a surprising amount of water, and the leak usually gets worse, not better. 

Yes — just make sure the trim matches the valve brand; send us a photo and we’ll confirm.

Fix That Shower Valve — Confirmed in 1 Hour

  • Cartridge-first
  • Tile-sparing where possible
  • Licensed since 1997
  • 5.0 ★ (300+ ratings)

Book an Appointment

Request Service — Confirmed Within 1 Hour

Advantage Plumbing & Rooter Booking Form_Updated

🔒No obligation. Confirmed within one hour. Never shared.