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

Avatar for Atlanta Tankless and Water Heater LLC
Atlanta Tankless and Water Heater LLC
5.0(
47
)
Tankless Water Heater - Install

Serving Gainesville, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Warranties offered

Credit card accepted

"Donnie is the most honest vendor I have ever worked with. He services my home, my parents, my sisters home and i have recommended him to friends. His work has always been flawless. Whether replacing our old cast iron in our home or working on the water heater - Donnie is the best. Can?t recommend them enough."
Dual Navien Tankless
Dual Navien Tankless
Canton Dual Tankless
Hotel Water Heaters
Water Heater Replacement

+7

Response time2 hrs
Response rate90%
Recommended by82%of homeowners
Avatar for Estes Services - HVAC Plumbing & Electrical
Estes Services - HVAC Plumbing & Electrical
4.5(
668
)
Tankless Water Heater - Install

Serving Gainesville, GA and surrounding areas

Approved

In business since 1949

Free estimates

Emergency services offered

"Estes has been providing my service for approximately 10 years. Always prompt, courteous and very accommodating. They recently (June 2019) replaced my hot water heater and installed new HVAC system. An awesome crew performed the installation and was very thorough in explaining all of the new components to me. Also the gentleman who came to my home when the unit needed replacing was extremely knowledgeable, very friendly and insured that all of my questions and concerns were addressed before he left."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+31

Response time5 hrs
Response rate100%
22 neighbors recently requested a quote
Avatar for Garner Plumbing, Inc.
Garner Plumbing, Inc.
4.3(
295
)
Tankless Water Heater - Install

Serving Gainesville, GA and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Garner Plumbing came out the day we called and quickly completed the hot water heater replacement. Pedro was very knowledgeable, skilled, polite, efficient and reliable. I highly recommend them and would use their services again."
Waterline replacement
Waterline replacement
Waterline replacement
Waterline replacement
Waterline replacement

+34

Response time12 hrs
18 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Greenlee Plumbing Inc
Greenlee Plumbing Inc
4.9(
251
)
Tankless Water Heater - Install

Serving Gainesville, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"I used Greenlee to replace my water heater. They replied to my inquiry for service very quickly, even though it was after normal business hours. They were responsive and professional assisting me in determining the best solution for me. They arrived quickly and on time. Their work was fast and they did a great job of removing my old water heater and installing the new one. Everyone with whom I had contact was friendly and professional. They will be handling any future plumbing work that I have."
Before. Old heater
Main service line repair with new shut off and pressure reducing valve and installing a frost free hydrant
New Heater
Additional Photos
Additional Photos

+25

Response time8 hrs
2 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Remedy Plumbing
Remedy Plumbing
4.5(
41
)
Tankless Water Heater - Install

Serving Gainesville, GA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Remedy is the best plumbing company in the Athens area! They truly care for their customers and go above and beyond to make sure they are happy. I switched to a tankless water heater and the work was perfectly executed and for a fair price. I highly recommend them for all plumbing needs and will be using them in the future!"
Response time8 hrs
Response rate89%
22 neighbors recently requested a quote
Avatar for Keep Smiling Plumbing, Electric, Heating & Cooling
Keep Smiling Plumbing, Electric, Heating & Cooling
4.5(
247
)
Tankless Water Heater - Install

Serving Gainesville, GA and surrounding areas

Approved (Corporate)

In business since 1985

Emergency services offered

Warranties offered

"I had Keep Smiling out to service and repair my tankless water heater. Everyone I spoke with was kind and professional. They came out the same day and completed the repairs. I was very happy with my service and I now have hot water again!"
Bathroom Plumbing
Fleet of Service Trucks
Class room training
Going over the warranty on work performed
8 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Rooter Pro Plumbing GA
Rooter Pro Plumbing GA
4.8(
37
)
Tankless Water Heater - Install

Serving Gainesville, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"I had a water leak in my front yard & after researching the highest rated Plumbers, I found Rooter Pro Plumbing of Georgia. They had great ratings on Trust Dale Caldwell, Angi's List, & Google. I scheduled a visit with them & Jerimey Jackson came by & did a leak detection. It was determined that I had multiple leads in my water line and he gave me all of my options & pricing. He is an expert on everything to do with plumbing & a great guy too. My water heater is 23 years old, so I decided to replace that as well. Jerimey led the work crew the next day in replacing my water line & water heater replacement. All the work was complete that day & the results are very good! I am very pleased with Rooter Pro Plumbing and the work they performed & the people I dealt with. Even the people in the office were great! I will use them again & recommend them to my friends & family! Paul Taylor"
Well Pump Installation After
Well Pump Installation Before
Well Pump Installation During
Sewer Main Repair
Sewer Main Repair During

+5

Response time4 hrs
Response rate92%
117 neighbors recently requested a quote
Avatar for O'Callaghan Plumbing
O'Callaghan Plumbing
5.0(
5
)
Tankless Water Heater - Install

Serving Gainesville, GA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"I am a Realtor and I refer Jake to all of my clients. He has also done numerous jobs at my home including finding a void in our out going system, jacking out a cement pad in our home and replacing pipe that had deteriorated. He also installed new plumbing and ejector pump for a bathroom that I am building. You will not find a more honest and decent person in the plumbing trade."
BISS SHOWER
BISS BATHROOM REMODEL
ROUGH IN BISS SHOWER
ROUGH IN BISS SHOWER
BISS BATHROOM REMODEL

+23

Response time20 mins
Recommended by100%of homeowners
Avatar for Mr. Rooter Plumbing of Gainesville
Mr. Rooter Plumbing of Gainesville
New to Angi
Tankless Water Heater - Install

Serving Gainesville, GA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Mr. Rooter Plumbing of Gainesville provides professional residential and commercial plumbing services throughout Gainesville, Hall County, and surrounding communities. Our services include drain cleaning, sewer line inspections, leak detection and repair, toilet and faucet repairs, water heater services, garbage disposal replacements, and general plumbing maintenance. We focus on dependable service, clear communication, upfront pricing, and quality workmanship. Contact us to schedule an appointment with our plumbing team.

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