Emergency Water Shut-Off Valves — Los Angeles & the Valleys

When a Pipe Bursts, Can You Actually Shut Your Water Off?

Most LA homeowners find out the answer at the worst possible moment. We install accessible, working emergency shut-off valves — and automatic leak-detection shut-off systems — so one turn (or none) stops the flood. Licensed, family-owned, since 1997.

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

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You need this if…

Your main shut-off is seized, corroded, or won’t fully close

You don’t know where it is — or it’s buried behind landscaping

You have an old gate valve (these fail exactly when you need them)

There are no individual shut-offs at toilets, sinks, or the water heater

You travel and want automatic protection while away

You’re already adding an earthquake gas valve — do both at once

Not sure if yours works? We’ll test it. 

The valve that fails when you need it

Here’s what we see constantly in LA-area homes: the house has a main shut-off, but it’s a decades-old gate valve that hasn’t been turned since the Reagan administration. When a pipe finally bursts and someone runs out to close it, the stem snaps or the gate won’t seat — and the water keeps coming while the house floods.

In older neighborhoods across Pasadena, Alhambra, Glendale, and the pre-war Valley tracts, that’s the norm, not the exception. The fix is simple and cheap compared to water damage: replace tired gate valves with modern quarter-turn ball valves (one 90° turn, no seizing), add fixture shut-offs so you can isolate one toilet instead of the whole house, and — if you want real protection — install an automatic leak-detection shut-off that closes the main by itself when it senses a leak or abnormal flow.

emergency water shut-off valve installation

What we install

Quarter-turn main shut-off valves 

Replace failing gate valves

Fixture shut-offs

Toilets, sinks, water heater, laundry

Automatic leak-detection shut-off systems

Close the main on its own

Relocation/access

Move a buried or unreachable valve somewhere usable

Earthquake gas valve

Bundle both utilities

Need a shut-off installed?

Call us for expert installation and straightforward pricing.

How it works

01

Call/request online

Confirmed within one hour.

02

We test what you have and quote in writing

Including whether it actually closes.

03

We install it right

Then show every adult in the house how we use it. Guaranteed.

Main Water Line with Emergency Shut-Off

Cost

A main valve replacement is a modest, straightforward job; fixture shut-offs are inexpensive add-ons; an automatic leak-shut-off system costs more but protects an unoccupied house. Written price up front after we see the setup — access and pipe material drive the number. You approve before we start.

Why LA chooses Advantage Plumbing & Rooter

24/7 real people

Written prices up front

Licensed CA #1067555

Family-owned since 1997

We test before we quote

Workmanship guarantee

Rated 5.0 ★ across 300+ reviews

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Tiffany Hsieh profile picture
Tiffany Hsieh
3 November 2026
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Our water heater was leaking and we made an emergency call to Steve on a Sunday afternoon, and he quickly made an appointment first thing on Monday morning. Frank came out and was absolutely wonderful. He came and quickly diagnosed the issue, and was out of the door in less and 2 hours. He was also extremely sweet to our young toddler - even giving us a heads up when turning on the water vacuum to make sure that my little guy could find a quiet place to hide. Super professional, great work, and reasonable prices - we couldn't ask for anything more. Thank you!!
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Ryan Novi profile picture
Ryan Novi
31 October 2026
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Frank has been helping with our plumbing issues for years. He's personable, great with young kids, and most importantly, does excellent work in a timely manner. Can't recommend him enough.
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carly kirkman profile picture
carly kirkman
30 October 2026
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Great service and quick response time. Highly recommend.
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Cheng Wen profile picture
Cheng Wen
27 October 2026
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I have always turned to Frank for our plumbing need since moving to South Pas. He has again and again proven himself to be a reliable and professional plumber. Communication with the new headquarters is easy, he showed up early, worked his magic, and we now have a fully functional shower!
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Get Geoff
27 October 2026
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If you only read one thing about this review, you should know that Steve follows up on calls/texts. Steve has always answered my calls (or texts), and arranged to provide service in a timely manner. This has not always been my experience with contractors. Steve stepped in when I had remedial foundation work going on at my house that required plumbing services. Previous home owners had made "penny-wise and pound-foolish" plumbing decisions that became apparent during the foundation rework. Steve's approach of taking pictures (and showing me live video) and explaining the circumstances made my decisions about plumbing service a near no-brainer. I also liked his sensible approach regarding materials vs long-term hassle: Maintainability, longevity, material cost, availability, resilience, etc. Steve is my go-to plumber. Update from 10/27/26: Needed a part replaced on my hot water heater. Frank from Advantage came to investigate it on the SAME DAY we called. He was friendly and helpful, telling us what needed to be fixed. Frank got the parts and repaired it quickly. It's still my go-to plumbing business!
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Cynthia Young
24 October 2026
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Steve Hutkins is fantastic—thorough, professional, and incredibly knowledgeable. He provided detailed estimates and excellent guidance, helping prepare our HOA for a major plumbing project. The company’s follow-up and clear instructions made the entire process much easier. Elizabeth in the office was equally wonderful. She was prompt, responsive, and ensured that our major drainage pipe replacement stayed on schedule and was completed as planned. The entire team was professional and completely transparent, keeping us informed and advising us every step of the way. Their communication, organization, and attention to detail were exceptional. I would absolutely work with this company again and highly recommend them to any HOA looking for a reliable, professional plumbing company!
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Diane Stokes profile picture
Diane Stokes
22 October 2026
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Frank got right to work unplugging a very stopped up drain pipe that serviced two condo units - mine and the one above me. He checked for outside clean-out valves and when the first tool he used to snake out the line couldn’t do the job he walked around the block to his truck to bring in a more powerful one. He explained everything he was about to do, answered all my questions and cleaned up a greasy mess afterwards. The price was reasonable. I would highly recommend Frank and Advantage Plumbing.
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Chris Blondal
21 October 2026
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Jose was great. He took his time and explained everything. Very polite and did a great job.
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Inge Seabo
17 October 2026
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Great job
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Richard Pepper profile picture
Richard Pepper
15 October 2026
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Amazing technicians, knowledgeable, incredible Office help
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Scott Hayashi
13 October 2026
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Excellent service and reasonable rates
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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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
Andrew Sanesi
30 September 2026
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Frequently asked questions

Usually where the water line enters the house, or at the meter near the street. If you can’t find it or it won’t turn, call us — we’ll locate, test, and replace it. 

A system that monitors flow and closes your main by itself when it detects a leak or abnormal use — protection even when nobody’s home. 

Old gate valves commonly fail at the moment of use. A quarter-turn ball valve closes with one 90° turn and doesn’t seize. 

Yes — so a running toilet doesn’t mean shutting off the whole house. 

Yes — we do both in one visit. It’s the sensible pairing.

Make Sure You Can Stop the Water — Confirmed in 1 Hour

  • Licensed since 1997
  • Written pricing
  • Quake-ready pairing available
  • 24/7

Book an Appointment

Get a Free Estimate — Confirmed Within 1 Hour

Advantage Plumbing & Rooter Booking Form_Updated

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