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

Avatar for Eco Plumbers, Electricians, and HVAC Technicians
Eco Plumbers, Electricians, and HVAC Technicians
4.6(
4,681
)
Tankless Water Heater - Install

Serving London, OH and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"Removed old water heater and installed tankless. Explained what needed to be done. There was some misunderstanding on what was needed that I said I would accomplish prior to their arrival. They stuck to their estimate even though they had to do additional work."
Our technicians!!!
Our experts on site!
Our experts on site!
Our technicians!!!
Service with a smile!

+26

45 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for McLean Plumbing
McLean Plumbing
4.9(
31
)
Tankless Water Heater - Install

Serving London, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"My pressure tank had a serious leak. I turned off the water and gave them the information they needed. They came out that day and replaced the pressure tank. I will hire them again if/when I need plumbing work done."
Response time12 hrs
Response rate96%
99 neighbors recently requested a quote
Avatar for Safe Electric & Plumbing
Safe Electric & Plumbing
4.6(
45
)
Tankless Water Heater - Install

Serving London, OH and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"Ask for Craig. His official title is VP of Operations, but I think he needs a new job title: Miracle Worker. We had a highly-rated provider in this field spend two hours with the chandelier, only to tell us the wiring was bad and we'd have to run a new, external wire along the ceiling and wall. It took Craig twenty minutes to properly diagnose the problem--and fix it! We've had lots of people look at the bathroom fixture and no one could figure out how the cover came off. Craig figured it out. We're going to be taking the fixture to our new location and we're going to have Craig install it. He's very pleasant to work with.
"
Additional Photos
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+11

Response time1 day
Response rate100%
23 neighbors recently requested a quote
Avatar for Apex Plumbing, Heating and Air Pros
Apex Plumbing, Heating and Air Pros
3.8(
126
)
Tankless Water Heater - Install

Serving London, OH and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"We had two water heaters replaced with a single tankless water heater. Lance from Apex came in and gave us a straightforward quote. Lance and David explained the value and features we would see with our new tankless system. They clearly explained everything that was going to need to be done and did a great job all the way through completing our project. The work is clean and well executed. I will call Apex going forward for any of my plumbing needs. Great company."
Additional Photos
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+22

Response time1 day
Response rate100%
44 neighbors recently requested a quote
Avatar for Rescue Rooter Columbus
Rescue Rooter Columbus
4.0(
310
)
Tankless Water Heater - Install

Serving London, OH and surrounding areas

Approved (Corporate)

In business since 1975

Free estimates

Emergency services offered

"Thank you , Brian Taylor for you excellent service Brian walked in like a BOSS!!! My hot water heater had been out for over a week. He said I can replace it today, He went to the hardware store brought back a quality water heater, he took out the old and installed the new. He left no mess behind including hauling away the old heater, I highly recommend this very respectful hard working man. Thank you Rescue Rooter for sending Brian."
Drain Cleaning
Response time2 days
288 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Northlake Plumbing LLC
Northlake Plumbing LLC
4.6(
11
)
Tankless Water Heater - Install

Serving London, OH and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"North Lake repaired and replaced multiple water pipe issues for us, and installed a new water heater. Our kitchen drain line and sump pump lines were old and needed replaced. The North Lake crew was friendly, efficient, and well priced. They even explained all they did, how to maintain it, and helped me with a few other questions I had while they were there. 10/10 will call them again."
project photos
178 neighbors recently requested a quote
Avatar for Benjamin Franklin Plumbing of Springfield and Urbana
Benjamin Franklin Plumbing of Springfield and Urbana
5.0(
8
)
Tankless Water Heater - Install

Serving London, OH and surrounding areas

Approved

Emergency services offered

Credit card accepted

Offers commercial services

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Project Photos
40 neighbors recently requested a quote
Avatar for ElectroPlumb
ElectroPlumb
5.0(
2
)
Tankless Water Heater - Install

Serving London, OH and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

With years of experience in the construction industry, we are the experts you need to take care of your home. We handle everything from plumbing to electric to painting. We will treat your home as we would treat our own. Give Electro Plo a call today, we look forward to working with you! \n

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+1

Response time20 mins
Avatar for JMJ Real Estate Properties
JMJ Real Estate Properties
5.0(
3
)
Tankless Water Heater - Install

Serving London, OH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

I provide dependable, high-quality services with a focus on craftsmanship, clear communication, and getting the job done right the first time. Whether it’s home repairs, renovations, or maintenance projects, I take pride in delivering work you can trust and results that last.

Full house remodel
Full house remodel
Full house remodel
Full house remodel
Full house remodel

+2

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