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Top-Rated Tankless water heater installers in Riverside - Updated Nov 2026

Avatar for Speedy Water Heaters and Plumbing
Speedy Water Heaters and Plumbing
5.0(
21
)
Tankless Water Heater - Install

Serving Riverside, 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 WATER HEATER SOS
WATER HEATER SOS
5.0(
17
)
Tankless Water Heater - Install

Serving Riverside, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"I have a tankless water heater that was giving an error code and i had no hot water! The tech that came out was very nice and knowledgeable. Im glad to report i now have hot water again. As a side note I talked with the tech about water treatment options and a RO system and as long as my husband agrees I will be having them install both items!!"
Phyn Install
Phyn Install
Water Heater
Water Heater
Response time8 hrs
Response rate98%
34 neighbors recently requested a quote
Avatar for J I G Plumbing
J I G Plumbing
4.9(
98
)
Tankless Water Heater - Install

Serving Riverside, 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

43 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for All Pro Cooling, Heating, Plumbing & Electrical
All Pro Cooling, Heating, Plumbing & Electrical
5.0(
16
)
Tankless Water Heater - Install

Serving Riverside, CA and surrounding areas

Approved

In business since 1982

Free estimates

Emergency services offered

Since we opened our doors in 1991, All Pro Plumbing, Heating, Air & Electrical has been dedicated to providing residential and commercial customers in Ontario, CA with top-notch plumbing, heating, air conditioning, indoor air quality, and electrical services. Nearly 30 years later, we have grown significantly, but our values have not changed. We are just as committed to customer service and providing you with personalized options to meet your specific needs. We know that when you are dealing with an urgent plumbing, HVAC, or electrical issue, there isn't always time to wait around for hours for your technician to show up. Today, with more technicians, we are able to answer your call 24 hours a day, 7 days a week, and respond to your needs faster, almost always within the hour! When you call us for service, we'll work with you to make sure your problem gets solved according to your specific needs and budget.

My jobs
My jobs
My jobs
My jobs
My jobs

+7

205 neighbors recently requested a quote
Avatar for Empire Plumbing, Inc.
Empire Plumbing, Inc.
4.8(
276
)
Tankless Water Heater - Install

Serving Riverside, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Credit card accepted

"Ruben is a great guy. We had issues with the first water heater (brand new). The manufacturer and distributor are not helpful in pinning down the problem â it took three weeks to finally fix the â brand newâ Bradford White water heater (I canâ t believe this). However, Ruben closely worked with me and spent lots of effort to get this done. I really appreciated his patience and effort. I will hire him again in the future."
Response time10 mins
Response rate100%
Recommended by97%of homeowners
Avatar for Alpine Plumbing, Heating, and Air
Alpine Plumbing, Heating, and Air
4.7(
36
)
Tankless Water Heater - Install

Serving Riverside, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"I Called to get an in person quote for a tankless water heater flush and left this job with a whole house filter and a fridge connection. When Michael first arrived we inspected the tankless unit and tested the water to conclude flushing was not my best option. He then walked me through my options for home filters and we decided on a Halo system. Michael was very well educated on the subject and gave me the best value filter for my needs. He installed the unit the next day in less than a few hours and left me with a flawless work of art. I couldn't be more impressed with the professionalism he brings to this trade! I also requested to hook up a fridge and he did that in what seemed like 30 minutes. He will be the only plumber I call from now on!! Thank you Michael!!!"
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
7 neighbors recently requested a quote
Recommended by67%of homeowners
Avatar for AXP Plumbing Solutions
AXP Plumbing Solutions
4.8(
44
)
Tankless Water Heater - Install

Serving Riverside, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I have my regular plumber but wanted a second quote so I went on the Angie app. They recommended several plumbers to install an automatic water main valve shut off unit that I needed for my homeowners. AXP contacted me on a Sunday and had a technician out by 9:00 on Monday. Felipe was wonderful and gave me an extremely reasonable quote. His boss, Albert came with parts and they did the work. Came across some excessive root problems but fixed the issue that made the job harder and longer but they got the job done!! Very professional and kept me abreast every step of the way. I would highly recommend this company!"
Water Heater Replacement
Water Heater Replacement
Main Drain Replament
Rough plumbing
Rough plumbing

+17

Recommended by67%of homeowners
Avatar for Service Champions Plumbing, Heating & AC
Service Champions Plumbing, Heating & AC
4.4(
50
)
Tankless Water Heater - Install

Serving Riverside, 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
...
Showing 1-10 of 263

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