Water Heater Replacement & Installation — Los Angeles & the Valleys

Need a New Water Heater? Often Installed the Same Day.

Water heater replacement Los Angeles for tank and tankless systems from a licensed, family-owned LA plumber since 1997. We size it right for your home and our hard SoCal water, install it to code, haul the old unit away, and give you a written price up front.

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

Book an Appointment

Get a free estimate — Confirmed Within 1 Hour

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Repair or replace?

Over 8–10 years old and acting up — usually replace

Leaking from the tank body — replace (tanks don’t get repaired)

Rumbling/popping from hard-water sediment, running out of hot water fast

Rusty hot water or a corroded tank

Pilot won’t stay lit / rising energy bills

Newer unit, minor part? We’ll repair it — water heater repair

Why LA water heaters die early (and how we size around it)

Here’s the local truth most companies won’t lead with: Southern California’s water is hard, and across much of LA — the San Gabriel Valley especially — it’s very hard. Those dissolved minerals bake into scale on the tank floor, which insulates the burner, makes it work harder, and shortens the heater’s life — which is why so many LA tanks fail at 6–10 years instead of 12+.

When we handle water heater replacement Los Angeles, we size it correctly for your household’s real demand and set it up to survive the hard water (proper anode and a flushing plan or scale protection). Do it right, and the new unit lasts; do it cheap, and you’re back here in a few years. We’ve installed thousands across LA since 1997.

Water Heater Repair Los Angeles

Tank vs. tankless

Tank

UPFRONT COST

Lower

HOT WATER

Limited by tank size

LIFESPAN

~8–12 yrs (less in hard water)

SPACE

Takes floor space

HARD-WATER CARE

Flush + anode

Tankless

UPFRONT COST

Higher

HOT WATER

Endless / on-demand

LIFESPAN

15–20 yrs with descaling

SPACE

Wall-mounted, compact

HARD-WATER CARE

Annual descaling

Most homes do great with a right-sized tank; heavy users and space-tight homes love tankless. We help you choose — no upsell.

What we do

Tank replacement

Often same-day, old unit hauled away

Right-sizing

For your household’s real hot-water demand

Code-compliant install

Straps, expansion tank, permit where required

Repair

When the unit’s worth saving

Need help choosing?

Get a free water heater assessment and upfront recommendations.

Why LA chooses Advantage Plumbing & Rooter

24/7 real people

Written prices up front

Licensed CA #1067555

Family-owned since 1997

Old unit hauled away

Workmanship guarantee

How it works

01

Call/request online

Confirmed within one hour.

02

We size it & quote in writing

Tank vs. tankless, honest recommendation.

03

Same-day install where possible

Old unit hauled away — guaranteed.

tankless water heater replacement Los Angeles

Cost of water heater replacement in Los Angeles

Replacement typically runs $1,200–$4,500+ depending on tank vs. tankless, capacity, code upgrades (straps, expansion tank, venting), and access. At Advantage Plumbing & Rooter, we give a written price up front, never a phone guess, and tell you honestly whether repair is the smarter call. You approve before we start.

Water heater service by city

and more…

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 profile picture
Bill Tom
8 October 2026
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Always professional. Thanks Albert and Warren.
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Alberto De Diego profile picture
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
30 September 2026
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The Best! Period
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Annie Alwin profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
Don Straney
21 September 2026
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Fast, dependable, kept me informed.
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Frequently asked questions

Usually — call early at (626) 956-3708. We stock common tank sizes and haul the old unit away. 

If it’s leaking from the tank, over ~8–10 years old, or failing repeatedly, replace. Newer units with a bad part are worth repairing — we’ll tell you honestly. 

Tank is lower up-front and simpler; tankless gives endless hot water, lasts longer, and saves space but costs more and needs annual descaling in our hard water. We help you choose. 

Hard-water scale shortens tank life across LA. We size and set up the new one to handle it. 

Yes — water heater replacement generally requires a permit and code upgrades (straps, expansion tank). We handle it.

Get Your Free Water Heater Replacement Estimate — Confirmed in 1 Hour

  • Licensed since 1997
  • Same-day where possible
  • Written pricing
  • 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.