Plumbing · Water Heaters · Los Angeles County

Tankless Water Heaters in Los Angeles

Endless hot water, on demand, from a unit the size of a suitcase. Rinnai ACE Pro, Navien Service Specialist & Noritz Authorized installers, installation, repair, descaling, and replacement.

Rinnai, Navien & Noritz factory-certified
Endless on-demand hot water
Up to 34% lower water heating costs
Licensed, bonded & insured, CA Lic #885156

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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

Endless Hot Water, Serious Efficiency

Tankless water heaters heat water only when you use it, no 50-gallon tank kept hot around the clock. The payoff: endless hot water for back-to-back showers, up to 34% lower water heating costs, a 15-20 year lifespan, and a wall-mounted unit that frees up an entire closet or garage corner.

ServiStar installs, repairs, descales, and replaces gas and electric tankless systems across Los Angeles County. As Rinnai ACE Pro, Navien Service Specialist, and Noritz Authorized Service Provider, our work protects your manufacturer warranty, from gas line sizing and venting to the annual flush the region’s hard water demands.

ServiStar technician installing a tankless water heater

Tankless Installation

Sized for your real demand and installed to manufacturer spec, the difference between endless hot water and endless error codes.

Peak-demand sizing calculation
Gas line & venting done right
Rinnai, Navien & Noritz certified
Warranty-safe installation
Tank-to-tankless conversions

Repair & Descaling

Certified diagnosis for every error code, and the annual flush that prevents most of them.

Error code diagnosis by certified techs
Ignition & flow sensor repairs
Annual descaling service
Heat exchanger protection
Maintenance plans that keep warranties valid

Tankless Services

Every stage of tankless ownership, handled by certified specialists.

Bank of commercial tankless water heaters installed by ServiStar in Los Angeles

Installation & Upgrades

Right-sized units with correct gas supply, venting, and condensate handling, installed to manufacturer spec.

ServiStar commercial plumbing project, Los Angeles

Repair & Error Codes

Ignition failures, error lockouts, temperature swings, and flow issues diagnosed by techs certified on your brand.

ServiStar tankless water heater installation, Los Angeles

Descaling & Maintenance

Annual flushing that clears hard-water scale from the heat exchanger, the single biggest factor in tankless lifespan.

Tankless Trouble Signs

Most tankless problems trace to one cause across Los Angeles County: scale. Catch it early and the fix is a flush, not a heat exchanger:

Book Tankless Service

Hot water cuts out mid-shower
Error codes on the display
Water takes longer to heat than before
Flow drops when heater kicks in

Unit has never been descaled
White scale at the connections
Rising gas bills with same usage
Unit is 15+ years old

How Tankless Service Works

Tankless done right is a 15-20 year appliance delivering endless hot water at up to 34% lower cost. Tankless done wrong, undersized, starved for gas, never descaled, is a wall-mounted frustration machine.

The difference is in details we obsess over: peak-demand sizing based on how your household actually uses water, gas supply and venting to manufacturer spec, and the annual flush the region’s hard water makes mandatory.

Factory certification isn’t a logo for us, Rinnai ACE Pro, Navien Service Specialist, and Noritz Authorized status means our work protects your warranty instead of voiding it.

Good to know: in the region’s hard water, annual descaling isn’t optional, most tankless manufacturers require it to keep the warranty valid.

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.

Recent Tankless Installations

Tankless and tank water heaters installed side by side

See more of our work →

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.

     
 
 
      Posted on Google  
   
   Haidy Mazate 
 2 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 3 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 11 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +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 
 15 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 16 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service and great communication on a new tankless water heater install. Would recommend them especially for that.
  
 
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   Alyssa Marquez 
 43 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 51 days ago
 
 
 Trustindex verifies that the original source of the review is Google. awesome company 100% recommend!
  
 
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   Annie Barillas 
 72 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 73 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 76 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 86 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 92 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 101 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 101 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 104 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 105 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 105 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 106 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 106 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 107 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 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!