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

Avatar for Honest Sewer & Drain, LLC
Honest Sewer & Drain, LLC
5.0(
21
)
Tankless Water Heater - Install

Serving Plymouth, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"We needed all the pipes replaced in our house. We also switched to a tankless water heater. Dustin came to give us an estimate and advise when they could start the project. We had gotten a couple of estimates but something just felt different with them. We liked that we received an email with who would be coming to give us an estimate as well as a picture of the technician we should expect. It was so refreshing working with this company it reminded me of company's 50 years ago with values and a caring staff. Dustin, Mike and Anatoily had what I will refer to as the three P's. They were professional, punctual and personable. They laid drop cloths and cleaned up everyday after themselves. They even finished the job a day early than projected as we were scheduled to go out of town for five days. I would highly recommend Honest Sewer & Drain. By the other positive reviews you guys are doing a fantastic job. Keep up the good work and it was a real pleasure doing business with you."
Hidden Tankless Water Heater
Pipe Fusing
Water Heater Replacement
After Epoxy Lining
Tankless Water Heater Installation

+50

Response time5 hrs
Response rate92%
40 neighbors recently requested a quote
Avatar for 2 Plumbs Up Plumbing & Remodeling, Inc.
2 Plumbs Up Plumbing & Remodeling, Inc.
4.8(
7
)
Tankless Water Heater - Install

Serving Plymouth, CA and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Don was very easy to work with. He brought his assistant Adam with him. Both were professional and I was amazed how only two people could get that installed in just one day. Very clean install- it looks very good."
Vanity (Before)
Vanity and Mirrors (After)
Bathtub (Before)
Shower (After)
Full view from Door (Before)

+2

Response time6 hrs
Response rate99%
14 neighbors recently requested a quote
Bonney Plumbing, Sewer, Electrical, Heating & Air
4.5(
1
)
Tankless Water Heater - Install

Serving Plymouth, CA and surrounding areas

Approved

In business since 1978

Free estimates

Credit card accepted

Bonney Plumbing, Electrical, Heating and Air, has been your local, reliable service company since 1978. As an A+ rated member of the Better Business Bureau, we have worked hard to build our reputation by providing you with top notch technicians, superior products and exceptional customer service. We have serviced thousands upon thousands of satisfied, loyal customers and are so pleased to earn your referrals. You can count on Bonney for quick, reliable service and repair for your plumbing, electrical, heating and air conditioning needs. \n

Recommended by100%of homeowners
JDH Precision Backflow
5.0(
15
)
Tankless Water Heater - Install

Serving Plymouth, CA and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"James provided excellent service and did an outstanding job removing the old water heater and installing a new one. He also installed a new kitchen faucet. I had trouble finding the right size low boy water heater in a timely manner and James located one and picked it up which saved a delivery fee. I would recommend James for any plumbing needs."
Response time4 hrs
Response rate92%
Recommended by100%of homeowners
Avatar for Hawthorne Plumbing, Heating & Cooling Reno
Hawthorne Plumbing, Heating & Cooling Reno
4.1(
146
)
Tankless Water Heater - Install

Serving Plymouth, CA and surrounding areas

In business since 2012

Free estimates

Emergency services offered

"Plumber arrived on time, we went over possible replacement faucets and he went back to shop to get the model I wanted.  He came back within an hour or so and installed the new faucet.  Unfortunately, he didn't have a length of 3/4" hose with which to flush our the hot water line which is partially clogged with rust, etc., so he was unable to perform that part of the requested service and I still have low hot water pressure in the kitchen.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by85%of homeowners
Avatar for Gilmore Heat Air Solar Contractors
Gilmore Heat Air Solar Contractors
4.6(
486
)
Tankless Water Heater - Install

Serving Plymouth, CA and surrounding areas

In business since 1972

Free estimates

Emergency services offered

"JEREMY WAS VERY KIND AND THE UTMOST PROFRESSIONAL AND I STAND CORRECTED, I DID NOT HIRE GILMORE FOR MY PLUMBING (NEW HOT WATER HEATER) NEEDS, ONLY BECAUSE OF THE PRICE! BUT I DID HIRE THEM FOR THE A/C REPAIR"
Response time7 hrs
Recommended by95%of homeowners
Showing 1-10 of 31

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