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Top-Rated Tankless water heater installers in San Marino - Updated Nov 2026

Avatar for Payless Water Heaters & Plumbing
Payless Water Heaters & Plumbing
4.2(
132
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Did a $59 consult only. Turned out the cost of repairing the old heater was almost as much as a new one, so we got a new one, and handled the install ourselves. Luis B was great, knowledgeable, friendly, didn't try to upcharge just to sell a heater, which we appreciated. Gave us an honest evaluation, several options, and was right on time. I will say, though, that the company failed to call me when he was on his way... not a big deal. All in all a good experience."
New Tankless Water Heater Installation
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Response time8 hrs
Response rate100%
Recommended by73%of homeowners
Avatar for Speedy Water Heaters and Plumbing
Speedy Water Heaters and Plumbing
5.0(
21
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"The entire process from the initial call to actually getting to take a shower was easy and pleasant with Speedy Water Heaters. They were upfront with pricing, quick to schedule, installation was clean and timely, the tech was knowledgeable, efficient and so patient with all my questions. I would definitely recommend Speedy Water Heaters to my friends and family! Great job!"
Response time3 hrs
Response rate93%
Recommended by38%of homeowners
Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Western Rooter to the rescue again! I had a small underground leak which appeared to be due to a bad sprinkler valve. A sprinkler repair company determined that it was not a bad sprinkler valve and thought it was due to a leak in the main water line. Daniel and Alex dug down to find that the leak was coming from a very old (at least 36 years) broken pvc line. After much testing and head scratching to try to figure out where the water was coming from, they decided to "chase the pipe." After much digging, they found that the very old broken pvc pipe was hooked up to a sprinkler valve that was buried 18 inches underground that had not been capped--only turned off. Roots from a nearby tree had opened the valve which caused the leak--crazy! The current sprinkler system has been the same one since we moved into the house in 1988. It took 36 years for the underground leak to occur!"
Ruben installs a new drainage system under a customers home. Working in a crawl space is rough, but we do what is needed.
Backing up? Got roots? Blast those roots out with a Hydro Jetter! We use a wart hog nozzle that combines controlled rotation with a unique 8 jet cutting configuration optimized for removing roots. It’s better with a jetter! Call us! We got this! ??
Sewer Line Camera
No drain clog too big or small, Western Rooter covers them all!
Justin clearing a Kitchen sink back-up after the Memorial holiday.
HALO 5 whole house water filtration system.

+542

Response time12 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Alpine Plumbing, Heating, and Air
Alpine Plumbing, Heating, and Air
4.7(
36
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"He was thorough, knowledgeful, listened to my concerns, respectful and got the job done quickly and efficiently with my plumbing problem. I would recommend Alpine Heating, plumbing and electrical services to anyone...and do recommend them."
Plumbing - Drain Cleaning Project
Sewer cleaned of roots and ready for lining
Prepping pipe for lining by removing massive roots
Mixing resin for liners, this resin gardens to create a solid pipe
Sewer robot in the pipe

+26

Response time9 hrs
10 neighbors recently requested a quote
Recommended by67%of homeowners
Avatar for Rapid Rescue Rooter & Plumbing
Rapid Rescue Rooter & Plumbing
5.0(
13
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"We’ve had so many plumbing projects over the years and have always used Rapid Rescue. They have replaced our water heater, completely plumbed two bathrooms & worked on the house mainline as well as the gas line and hooking up the water lines for the washer & dryer. They are honest, reliable and affordable. The work they have done has been top notch and it lasts. I highly recommend Wes and Rapid Rescue for all of your plumbing needs."
Old plumbing
Beautiful Bathroom Remodel
Beautiful Bathroom Remodel
Beautiful Bathroom Remodel
Beautiful Bathroom Remodel

+18

Recommended by76%of homeowners
Avatar for G M C Plumbing, Inc.
G M C Plumbing, Inc.
4.9(
86
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"100% recommend. Very professional in every way as the other reviews say. Geremias and his nephews installed a tankless water heater for me, and it works great. Punctual, responsive, communicative, trustworthy, and the best price. I couldnâ t ask for better."
New Drainage
Old  shower Drainage
New kitchen faucet
New Drainage
New Drainage- SEWER LINE

+3

Response time5 hrs
Response rate97%
24 neighbors recently requested a quote
Avatar for HARMONY ELECTRIC PLUMBING & AIR INC
HARMONY ELECTRIC PLUMBING & AIR INC
4.8(
36
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"They called us quickly and got a plumber out within a few days. Super thorough - tested all pipes and water sources to diagnose the problem. They were able to perform maintenance on most bathrooms the same day and improve the water temperature in our showers. Gave helpful, non-biased advice on potential further plumbing improvements. We will likely call this company again for any and all future plumbing needs."
826 neighbors recently requested a quote
Recommended by38%of homeowners
Avatar for CARLOS HERRERA
CARLOS HERRERA
4.5(
215
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

In business since 2008

Free estimates

Offers commercial services

Owner operated. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Cost is determined by the job. No travel charges. No service charges. No extra charge for after hours services. Give us a call today.

Tub Installation
55 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Precise Plumbing Services
Precise Plumbing Services
4.3(
137
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

In business since 1978

Free estimates

Credit card accepted

"David and Sam were quick to respond to our leaking pipe problem. Quick turn around on the project and helped plan for our future plumbing needs (Tankless heater!! Yes!) Definitely would recommend!"
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for AD3 PLUMBING
AD3 PLUMBING
4.9(
17
)
Tankless Water Heater - Install

Serving San Marino, CA and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

"Nothing but good stuff from this company. Adrian (owners' son) is very knowledgeable and professional. I got quotes from two other plumbers for my kitchen drainage pipe massive leak. They both wanted to open-up the floor, and one of them wanted to also break-open the walkway, due to the extremely narrow crawl space. Adrian was the only one of the three that actually took a look under the house and determined that his men could dig under the footing to get to the problem. They arrived at the time scheduled, and left 2 hours later when the job done. And when I say done, I mean the area completely cleaned-up including picking-up the old pipes. They also had to cut into the stucco to get to the vent pipe. It looks like a surgeon did it. The stucco repairman is going to have an easy repair as a result. Trust me, if you're tired of dealing with plumbers that don't care about doing a good job, you have to hire Adrian at AD3 Plumbing for any plumbing issue you have. Adolfo Perez"
Water Heater Install
Water Heater Install
Replace Toilet Flange
Replace Toilet Flange
Replace Toilet Flange

+6

Response time1 day
Response rate100%
2 neighbors recently requested a quote
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