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Top-Rated Tankless water heater repair pros in Columbia - Updated Nov 2026

Avatar for Kelly Installation, LLC
Kelly Installation, LLC
4.9(
17
)
Tankless Water Heater - Repair

Serving Columbia, SC and surrounding areas

Approved

In business since 1999

Emergency services offered

Warranties offered

"Amazing work and professional. Great prices and tried to fix the problems not just come out with replace everything and jack up costs. Very efficient and cleaned up. Did extra helpful things and I will definitely be using in the future. David will be my first call on future updates and repairs."
Bathroom remodel
Bathroom remodel
Storage tank swap out
Rinnai tankless
Rinnai tankless

+2

Avatar for One Stop Plumbing Heating and Air
One Stop Plumbing Heating and Air
4.7(
14
)
Tankless Water Heater - Repair

Serving Columbia, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"David and his crew installed a new tankless Water heater for me and I have nothing but good things to say about the unit we chose and the experience all together. If I need any work done on my home in the future I know who I’m calling."
Response time6 hrs
Response rate96%
26 neighbors recently requested a quote
Avatar for Reds Plumbing
Reds Plumbing
4.7(
39
)
Tankless Water Heater - Repair

Serving Columbia, SC and surrounding areas

Approved

Super Service Award Winner

Emergency services offered

Warranties offered

Credit card accepted

"It was a lot of work my house is 61 years old and they change all the drainage all the new pipes for water and water from To be able to drink that water without this much worried put keys for my future dishwasher and put a house shut off next to my house for me easier to shut it off."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+14

Recommended by61%of homeowners
Avatar for AJ Plumbing
AJ Plumbing
5.0(
39
)
Tankless Water Heater - Repair

Serving Columbia, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"He came on time was very polite went right to work did a great job. He was very professional the way you wish others would be, and changed 2 times less then others to install a hot water heater, I told my husband I think we found a plumber we can trust to say the least we would definitely call him again ."
Tankless water heater
Indoor tankless Propane
Water Leak In Slab
Response time6 hrs
Response rate100%
Avatar for Cottrell & Co, Inc.
Cottrell & Co, Inc.
4.4(
7
)
Tankless Water Heater - Repair

Serving Columbia, SC and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Credit card accepted

Since 1995, Cottrell & Co., Inc. has been providing expert plumbing repair, heating repair, air conditioning repair and drain cleaning service to homeowners and businesses in Columbia, Lexington, and beyond. We're known as the only service company you want in your home. We service residential and commercial buildings all over the Midlands. Our Master Plumbers and NATE Certified HVAC specialists are hand-picked and expertly trained to provide you with the finest plumbing, heating and air service and installations. When you need it done right, you need a Master Plumber or a NATE Certified HVAC Specialist. Call Cottrell & Co!

Avatar for American Plumbing Service
American Plumbing Service
4.8(
100
)
Tankless Water Heater - Repair

Serving Columbia, SC and surrounding areas

In business since 2014

Free estimates

Credit card accepted

"There was water leaking from my intake valve  on my hot water heater.      I called and made an appointment, but it wouldn't be for 2days.     When I told him  that I didn't have any hot water - he then told me that   he would    to come after he was done for the day . By 6:30  he was here.  Changed the valve  and made sure all was good and was gone within 30mins.     Great  service!  He was VERY knowledgeable and nice.   VERY HAPPY!!!
"
Removal of old caulk
Side view of tub
Finished Product
Tim Cook, owner of American Plumbing Service
Water and Sewer Line

+2

Recommended by92%of homeowners
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