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

Avatar for The Water Heater Guys LLC
The Water Heater Guys LLC
5.0(
7
)
Tankless Water Heater - Install

Serving Louisville, TN and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We specialize in water heater installations only. Having a specific focus allows us to do the best possible job, for lower costs to you (30-40% lower than our competitors), without compromising on quality. Our unique business model allows for instant quotes online or over the phone without additional visits. Book immediately after receiving your quote without giant time windows ruining your day and get back up and running quickly.

Gas Water Heater Install
Gas Water Heater Install
Gas Water Heater Install
Electric Water Heater
3 neighbors recently requested a quote
Avatar for Mr. Rooter Plumbing
Mr. Rooter Plumbing
4.3(
523
)
Tankless Water Heater - Install

Serving Louisville, TN and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"I had a tankless water heater installed but needed the gas line to be dug from the other side of the house for it to be connected. The job was complicated but Luke and his crew from Mr. Rooter did a great job! I would totally hire them again for any plumbing needs."
Install New Drains
Install New Drains
Install New Drains
Install New Drains
Install New Drains

+49

7 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Alfco Plumbing
Alfco Plumbing
5.0(
39
)
Tankless Water Heater - Install

Serving Louisville, TN and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Seem like an honest company. Came out to replace the faucet that another plumbing company installed that wouldnâ t connect to my hose. It was not the correct one. Fast response and great quality work. Would definitely hire again and recommend."
Garbage Disposal Installed
Response time1 day
Recommended by86%of homeowners
Avatar for Hiller Plumbing, Heating, Cooling, & Electrical
Hiller Plumbing, Heating, Cooling, & Electrical
4.5(
38
)
Tankless Water Heater - Install

Serving Louisville, TN and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Credit card accepted

Hiller Plumbing, Heating, Cooling, & Electrical, established in 1990, stands for quality and reliability. With our 'Happy You'll Be or the Service is Free' guarantee, we are dedicated to customer satisfaction in Memphis, TN and the surrounding communities. Our plumbers provide emergency repairs, sewer line service, and expert installation or repair of water heaters. Our HVAC specialists ensure your comfort with preventative maintenance, air conditioning and furnace repairs, for year-round comfort. Our licensed and insured electricians offer prompt emergency response, custom upgrades, and safe, thorough electrical fixes for both residential and commercial properties. Hiller is your trusted provider for all your home service needs.

My jobs
My jobs
My jobs
My jobs
My jobs

+10

20 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for John H. Coleman Co LLC
John H. Coleman Co LLC
4.8(
103
)
Tankless Water Heater - Install

Serving Louisville, TN and surrounding areas

Approved (Corporate)

In business since 1945

Free estimates

Emergency services offered

"My downstairs heat pump crashed and burned on the first cold night in
November.  I reached out to Coleman as they did my upstairs unit (superb
job FYI), they were great to work with, but were unable to replace the
unit same day on Friday :0   Best they could do was Monday.  Talk about
great service! 
The 2 technicians showed up early and went to work quickly
removing the old unit outside.  I was even able to go to work that
morning as they said they would call me when they needed to get in to
replace the air handler.  Several hours later they gave me a call saying
they would be ready to go start on the inside.  I took a long lunch
break, and the job was done.   
"
Additional Photos
Additional Photos
Additional Photos
JHCC Office/Shop
Heat Pump Repair

+3

13 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Tennessee Standard Plumbing
Tennessee Standard Plumbing
4.7(
217
)
Tankless Water Heater - Install

Serving Louisville, TN and surrounding areas

Approved

In business since 2019

Warranties offered

Small jobs welcome

"Kelton and Bobby provided a very professional install on my new tankless water heater. They worked with me on the price and stayed late to make sure I knew what each feature did and the recommended maintenance schedules. Highly recommended!"
Get your options
Choose what fits
Recent Plumbing Projects
Recent Plumbing Projects
Recent Plumbing Projects

+225

Response time9 hrs
Response rate89%
176 neighbors recently requested a quote
Avatar for Winkle's Plumbing
Winkle's Plumbing
4.3(
84
)
Tankless Water Heater - Install

Serving Louisville, TN and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"The other plumber scheduled got called away but they showed up with two (2) other plumbers Kevin and Bob. They replaced faucet as it was dripping inside faucet and cheaper in long run to replaced and NOT repairs. They also replaced the hot water shut up valve and added plastic gasket and metal gasket to create a better seal. My handyman changed it out but not a long term stolution. They way they did the plumbing it is a perm. long term solution. If I continue to not fix I could have had a hot water pipe burst and could have cost thousands in water damage. Why I chose Winkles Plumbing. Quality work at affordable price. I tried others but they do NOT have the plumbing expertise. I been a homeowner for over 13 years. Many plumbers talk but only a handful of plumbers know how to really do the job."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time1 day
2 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for The Plumbing Authority, Inc.
The Plumbing Authority, Inc.
4.5(
226
)
Tankless Water Heater - Install

Serving Louisville, TN and surrounding areas

Approved

In business since 2013

Emergency services offered

Warranties offered

"They were quick to respond and arrived the next morning and talked through the options and were able to replace the water heater. Very friendly and professional."
Cabin Service
Navien Tankless Heater
Replacing Pipes and Earning a Five Star Review!
A Tankless Water Heater/Softener & Five Stars!
A New Water Line and One Very Happy Homeowner!

+7

Response time8 hrs
50 neighbors recently requested a quote
Recommended by88%of homeowners
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