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Top-Rated Tankless water heater repair pros in West Covina - Updated Nov 2026

Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Tankless Water Heater - Repair

Serving West Covina, 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%
6 neighbors recently requested a quote
Avatar for J I G Plumbing
J I G Plumbing
4.9(
98
)
Tankless Water Heater - Repair

Serving West Covina, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Had a old 30 year 75 gallon leaking hot water heater. JIG Owner came out to the and assessed the problem and offered a replacement unit or upgrade to a tankless! I selected the tankless. Excellent installation, and removal of the old unit. Crew showed up on time, very professional and made sure I understood the warranty terms and conditions along with the operation of the unit. The owner followed up with a followup inspection to ensure I was happy."
Completed Install
Preparing new install
Completed Install
Completed Install
Completed Install

+8

42 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Alpine Plumbing, Heating, and Air
Alpine Plumbing, Heating, and Air
4.7(
36
)
Tankless Water Heater - Repair

Serving West Covina, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"Mike was great! He was friendly and knowledgeable. He let me know all the options for replacing my water heater and did the work quickly and neatly. Will definitely be calling him again!"
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
8 neighbors recently requested a quote
Recommended by67%of homeowners
Avatar for Service Champions Plumbing, Heating & AC
Service Champions Plumbing, Heating & AC
4.4(
50
)
Tankless Water Heater - Repair

Serving West Covina, CA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Can not say enough positive things about this company. Usually do alot of things diy, but i would hire them any time to do plumbing. Their professionalism is way above board. Prices more than fair. Miguel is a definite asset to this company. When i have a plumbing problem i will definitely call them back. (had another company come before them that could not get the job done and suggested replacing the trap under my bathtub. My home is not on a foundation but a slab, and that means removal of my bathtub. The cost of his visit would have gone from one hundred dollars to thousands. ) Thank you Service Champions!"
Area Drain Cleaning
Plumbing
Plumbing
Garbage Disposal
Drain Cleaning

+13

Response time4 hrs
Recommended by79%of homeowners
Avatar for Top Notch Plumbing, Inc.
Top Notch Plumbing, Inc.
4.9(
26
)
Tankless Water Heater - Repair

Serving West Covina, CA and surrounding areas

Approved

In business since 2016

Warranties offered

Credit card accepted

"5 ð ~ Jaime and Jeff from Top Notch Plumbing are right there when you need them and do an excellent job at a reasonable cost. Donâ t hesitate to call them! Theyâ ve helped us out twice when we have had a slab leak. They do the re-piping better than new. They really do quality work and are happy to explain things in a way you can understand the problem. ~ 5 ð !!"
Response time7 hrs
Recommended by95%of homeowners
Bruce's Plumbing Service
4.8(
49
)
Tankless Water Heater - Repair

Serving West Covina, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Credit card accepted

"I looked at a couple of quotes for tankless water heater, but Bruce is the only one who followed up with me consistently to make sure we were aware of our options. He is incredibly knowledgeable, personable, and professional. Our tankless water heater works great and I would highly recommend Bruce for a tankless water heater project."
Response time2 hrs
Response rate99%
Recommended by76%of homeowners
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