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

Avatar for Alpine Plumbing, Heating, and Air
Alpine Plumbing, Heating, and Air
4.7(
36
)
Tankless Water Heater - Repair

Serving Azusa, 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
10 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 Azusa, CA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Kayvan was a wonderful service tech! He was on time and professionally checked out the water heater and the HVAC system. He was so polite and friendly. He explained the need for a new filter in the heating unit and showed me photos of the unit located in the attic. He also offered to do a friendly deed for free, which I greatly appreciated, He’s a great asset to Service Champions!"
Area Drain Cleaning
Plumbing
Plumbing
Garbage Disposal
Drain Cleaning

+13

Response time4 hrs
Recommended by79%of homeowners
Avatar for HARMONY ELECTRIC PLUMBING & AIR INC
HARMONY ELECTRIC PLUMBING & AIR INC
4.8(
36
)
Tankless Water Heater - Repair

Serving Azusa, 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."
845 neighbors recently requested a quote
Recommended by38%of homeowners
Avatar for Rapid Rescue Rooter & Plumbing
Rapid Rescue Rooter & Plumbing
5.0(
41
)
Tankless Water Heater - Repair

Serving Azusa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Wes came out to look at a water heater issue my mom was having. He took the time to explain what the issue was, offered options, and ultimately replaced the water heater and some of the old piping around it that needed it. Never had a problem since. After that, we also hired Wes for other pipe replacement in the garage and in the laundry area. Again, haven’t had an issue since. He is a professional and I appreciate trusting that the job is done right and not being gauged for it. I would absolutely recommend Rapid Rescue Rooter & Plumbing."
Tankless water heater
the best water treatment
Another Happy Customer
Plumbing Professionals
Plumbing Professionals

+12

Response time6 hrs
Response rate97%
4 neighbors recently requested a quote
Avatar for Sweetwater Plumbing Industries, Inc.
Sweetwater Plumbing Industries, Inc.
4.0(
620
)
Tankless Water Heater - Repair

Serving Azusa, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Technician Ruben was able to spot where the issue with the water heater and he also able to fix it right away. I have asked 3 other plumbing company for bid they all recommend to replace the water heater. So Sweetwater literally saved me thousands!! Thank you!"
Water Heater Installation
Plumbing Services
Water Heater
Plumbing Services
On Time Service

+36

Response time3 hrs
19 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Roto-Rooter Plumbing & Water Cleanup - LA South
Roto-Rooter Plumbing & Water Cleanup - LA South
4.5(
2
)
Tankless Water Heater - Repair

Serving Azusa, CA and surrounding areas

Approved (Corporate)

In business since 1935

Free estimates

Emergency services offered

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

Avatar for Adeedo!
Adeedo!
2.8(
2
)
Tankless Water Heater - Repair

Serving Azusa, CA and surrounding areas

Approved

In business since 1949

Free estimates

Emergency services offered

100% Happiness Guarantee – Adeedo is Los Angeles’ trusted plumbing and HVAC expert, delivering fast, reliable service with expert care. We offer Same Day Service—days, nights, weekends, and holidays.\n\nSince 1949, we’ve provided premier HVAC and plumbing services throughout Los Angeles, earning a reputation for quality workmanship and dependable results. Our skilled plumbers handle everything from faucets, fixtures, and water heaters to copper piping, re-piping, trenchless sewer repair, sewer lining, and routine maintenance.\n\nOur HVAC specialists provide furnace and AC maintenance, repair, and installation, including energy-efficient upgrades, mini-splits, programmable thermostats, and complete system replacements.\n\nFrom your first call to job completion, Adeedo delivers the professionalism and expertise homeowners expect.

Drain Clearing
AC Tune-Up
Avatar for Waterboy Municipal Solutions Corp.
Waterboy Municipal Solutions Corp.
5.0(
56
)
Tankless Water Heater - Repair

Serving Azusa, CA and surrounding areas

In business since 2002

Emergency services offered

Credit card accepted

"Water Boy came in and went to work immediately on my tankless water unit and answered all my concerns. He was in the neighborhood and worked late. Very grateful that he provided me information about water quality and water systems that I have been looking for. Thank you water boy"
Membrane Bioreactor MBR Installation and Supervisi
Water Softeners
Water Softeners Repairs
Response time9 hrs
Response rate92%
Recommended by100%of homeowners
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