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Top-Rated Water heater installers and replacers in Knoxville - Updated Nov 2026

Avatar for Dave the Plumber, LLC
Dave the Plumber, LLC
4.2(
188
)
Water Heater - Install or Replace

Serving Knoxville, MD and surrounding areas

Approved

In business since 2000

Warranties offered

Small jobs welcome

"I hired a plumber through HomeAdvisor using prepay but I would not recommend this service. The contractor left a leaky pipe that caused water coming up through carpet. I had to purchase a wet vacuum to dry out the carpet. I had to contact HomeAdvisor again and hired Dave the Plumber, LLC who had to redo the installation done previously. Dave the Plumber replaced all the piping and outside spigot because of a water leak the previous contractor left. Thank you Dave the Plumber for being a professional and a job well done."
Our work
Our work
Our work
Our work
Our work

+11

Response time6 hrs
24 neighbors recently requested a quote
Recommended by80%of homeowners
O'Donnell Plumbing
4.7(
94
)
Water Heater - Install or Replace

Serving Knoxville, MD and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: Quality work

"Easy to communicate with, very efficient, timely, and the most affordable for great work and quality items. Rob installed and removed a water heater, replaced two faucets, and replaced rusted bolts and handle on the two toilets. Will be keeping Rob as a trusted plumber for any future jobs."
Response time5 hrs
Recommended by60%of homeowners
Avatar for TriState Home Services
TriState Home Services
4.6(
204
)
Water Heater - Install or Replace

Serving Knoxville, MD and surrounding areas

In business since 1949

Free estimates

Emergency services offered

"I recently had a crack in my acrylic bathtub and called TriState Home Services to replace the tub. We decided to replace it with the same soaking tub to avoid any unnecessary damage to the ceramic tile we put in a few years ago. Bryan, the plumbing specialist at TriState did just that! He did an awesome job on this project. I also want to say how impressed I was with their customer service department, particularly with Megan, in her quick response to my emails along with making me feel so comfortable throughout the whole job."
Furnace Tune Up
Floor Heating System
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Recommended by91%of homeowners
Avatar for National Water Service Corp
National Water Service Corp
4.6(
114
)
Water Heater - Install or Replace

Serving Knoxville, MD and surrounding areas

In business since 1979

Free estimates

Emergency services offered

"My well pump pressure tank needed service and I called Friday and Barbara was very professional and eager to help. She took the time to understand the issue and even reviewed the pictures. Barbara is very passionate about her job. She was able to schedule for Saturday. Dave came out. He called to let me know that he was on his way and let me know when he will arrive. He was very punctual, professional, friendly, and down to business. Totally impressed with the way he solved the problem and made sure that answered all of my questions. This company is very ethical and I would recommend them to anyone."
Water Treatment, water softener, solution feeder, constant pressure well pump system
Tankless Water Heater
Whole House Water Treatment with Twin PFA/PFOAs remediation filters
Installing a new well line from the well to the house
Tankless Water Heater and Traditional Water Heater

+31

Recommended by92%of homeowners
Art's Plumbing, Inc.
4.9(
55
)
Water Heater - Install or Replace

Serving Knoxville, MD and surrounding areas

In business since 1991

Free estimates

Credit card accepted

"Our plumbing system was 33 years old. Arts Plumbing completely replaced the entire water system, plumbing, water heater, water tank, some bathroom fixtures, and installed a water filtration system. We had outside hose lines installed. The crew was experienced, professional, efficient and friendly. Everything was organized, labeled well and they went over the system with us. They offered a few suggestions that really helped the efficiency of the system. It was a pleasure having them do the work, great people! We were pleased with the price and we will continue to use them for all our plumbing needs."
Amazing new tub
Basement Bath Remodel
Gas Water Heater Installed
New pressure tank and water filtration system
Response time1 day
Recommended by97%of homeowners
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