Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Tankless water heater installers in Alpharetta

Avatar for Plumbing Express
Plumbing Express
3050 Presidential Pkwy, Suite 202
4.54(
58
)
Approved Pro
Plumbing Express
3050 Presidential Pkwy, Suite 202
4.54(
58
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
24 years of experience

We have built our reputation for excellence repiping homes the Atlanta area. Call on us to locate and address your pipe problems. In addition to our whole home repipe services, Plumbing Express services our client's needs throughout their home by offering comprehensive home plumbing services including: water heater service and upgrade to Rinnai tankless and Rheem tank hot water systems. We will also take care of your clogged drains and broken sewer pipes.

"Due to pinholes in our 1980 home copper pipe system we needed a complete re-pipe done. Contracted with Plumbing Express. At 9 a.m. four of their specialists went to work with protecting our floors then got busy opening walls and removing the copper pipes. They were all friendly and professional and worked well together. By 6 p.m. we were back in business with all new cpvc piping and our home tidied back up. Our home has 3 bathrooms and the usual appliances and sinks and everything was working when they departed. Impressive! A couple days later their sheetrock guy came out and patched the walls and ceilings and matched the stippling perfectly in the ceiling. They delivered as advertised. I highly recommend Plumbing Express."

Gene S on September 2023

We have built our reputation for excellence repiping homes the Atlanta area. Call on us to locate and address your pipe problems. In addition to our whole home repipe services, Plumbing Express services our client's needs throughout their home by offering comprehensive home plumbing services including: water heater service and upgrade to Rinnai tankless and Rheem tank hot water systems. We will also take care of your clogged drains and broken sewer pipes.

"Due to pinholes in our 1980 home copper pipe system we needed a complete re-pipe done. Contracted with Plumbing Express. At 9 a.m. four of their specialists went to work with protecting our floors then got busy opening walls and removing the copper pipes. They were all friendly and professional and worked well together. By 6 p.m. we were back in business with all new cpvc piping and our home tidied back up. Our home has 3 bathrooms and the usual appliances and sinks and everything was working when they departed. Impressive! A couple days later their sheetrock guy came out and patched the walls and ceilings and matched the stippling perfectly in the ceiling. They delivered as advertised. I highly recommend Plumbing Express."

Gene S on September 2023


Avatar for Advent Plumbing, LLC
Advent Plumbing, LLC
1459 Chamirey Drive SW
4.79(
64
)
Approved Pro
Advent Plumbing, LLC
1459 Chamirey Drive SW
4.79(
64
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
12 local quotes requested

When it comes to commercial or residential plumbing installs and repairs; look no further than Advent Plumbing, LLC. One stop for all your plumbing repairs: toilet, faucet, sink, shower, leaks, water heaters, garbage disposal, water main, sewer, all plumbing replacements, repairs and installations done by a GA. license Master Plumber. We have several 25 years experience providing quick neat and reliable services through out the community. We are priced right. Free estimate, and never an overtime charge. License, insured and bonded.

"Elie did a great job installing my hot water heater at a price that was much better than the other quotes I received. I highly recommend Advent Plumbing!"

Tim S on April 2025

When it comes to commercial or residential plumbing installs and repairs; look no further than Advent Plumbing, LLC. One stop for all your plumbing repairs: toilet, faucet, sink, shower, leaks, water heaters, garbage disposal, water main, sewer, all plumbing replacements, repairs and installations done by a GA. license Master Plumber. We have several 25 years experience providing quick neat and reliable services through out the community. We are priced right. Free estimate, and never an overtime charge. License, insured and bonded.

"Elie did a great job installing my hot water heater at a price that was much better than the other quotes I received. I highly recommend Advent Plumbing!"

Tim S on April 2025


Bluefrog Plumbing and Drain
1199 Kendrick Rd NE
New on HomeAdvisorNew on Angi
Approved Pro
Bluefrog Plumbing and Drain
1199 Kendrick Rd NE
New on AngiNew on HomeAdvisor
Approved Pro
2 years of experience

We take great pride in our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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 a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

We take great pride in our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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 a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.


Plumb Medic, LLC
5227 Silver Springs Drive
New on HomeAdvisorNew on Angi
Approved Pro
Plumb Medic, LLC
5227 Silver Springs Drive
New on AngiNew on HomeAdvisor
Approved Pro
9 years of experience
Free onsite estimate

We are full service residential plumbing company who takes 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 start to 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.

We are full service residential plumbing company who takes 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 start to 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.


Avatar for PlumbPros Plumbing, LLC
PlumbPros Plumbing, LLC
1700 Cumberland Point Drive Southeast, Suite 15
4.48(
279
)
Approved Pro
PlumbPros Plumbing, LLC
1700 Cumberland Point Drive Southeast, Suite 15
4.48(
279
)
Approved Pro
Customers say: Quick response
19 local quotes requested
26 years of experience

At PlumbPros Plumbing, LLC we sustain our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all of our projects. We are experts in our trade, and will always keep you educated on your particular task or project. Call today!

"Had them to my home several times for different reasons. Always prompt and provided excellent service"

tim P on January 2025

At PlumbPros Plumbing, LLC we sustain our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all of our projects. We are experts in our trade, and will always keep you educated on your particular task or project. Call today!

"Had them to my home several times for different reasons. Always prompt and provided excellent service"

tim P on January 2025


Avatar for Halcomb Plumbing, Inc.
Halcomb Plumbing, Inc.
10800 Alpharetta Highway, Suite 208-488
4.88(
19
)
Approved Pro
Halcomb Plumbing, Inc.
10800 Alpharetta Highway, Suite 208-488
4.88(
19
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
40 years of experience

Halcomb Plumbing, Inc. is owned and operated by a Licensed Master Plumber with over 30 years of plumbing experience. We specialize in solving difficult plumbing problems! We provide All Plumbing Services for both Commercial and Residential customers. Many of our common services include: installing water heaters, repairing & replacing sewer lines and water lines, hydro jetting service and drain cleaning. We can perform a sewer line inspection to identify problems in your sewer line. We also offer horizontal boring / trenchless pipe line install to minimize impact to your landscaping. Our experienced staff at Halcomb Plumbing, Inc., has been hand picked, screened and trained to the highest standards. Visit our full website at www.halcombplumbing.com.

"Very knowledgeable and helpful"

Will B on April 2020

Halcomb Plumbing, Inc. is owned and operated by a Licensed Master Plumber with over 30 years of plumbing experience. We specialize in solving difficult plumbing problems! We provide All Plumbing Services for both Commercial and Residential customers. Many of our common services include: installing water heaters, repairing & replacing sewer lines and water lines, hydro jetting service and drain cleaning. We can perform a sewer line inspection to identify problems in your sewer line. We also offer horizontal boring / trenchless pipe line install to minimize impact to your landscaping. Our experienced staff at Halcomb Plumbing, Inc., has been hand picked, screened and trained to the highest standards. Visit our full website at www.halcombplumbing.com.

"Very knowledgeable and helpful"

Will B on April 2020


Avatar for Garner Plumbing, Inc.
Garner Plumbing, Inc.
5450 Technology Parkway Suite 400
4.52(
263
)
Approved Pro
Garner Plumbing, Inc.
5450 Technology Parkway Suite 400
4.52(
263
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
21 local quotes requested

Garner Plumbing, Inc., is a family owned and operated business, offering plumbing services for both commercial and residential applications. We specialize in resolving all types of plumbing problems. We can handle new installation, as well as, service for existing plumbing. We carry and install many major brands of electric, gas and tankless water heaters. Our service area includes Hall, Jackson, Barrow and Forsyth Counties. We are licensed, bonded and insured. Also, we offer 24 hour emergency services. We are extremely passionate about the work that we do and you can trust us to provide a high quality service at a fair and honest price. If you are looking for a plumber you can depend on, please call Garner Plumbing today!

"I can't thank the guys enough for coming to the rescue. I started a toilet repair that should have been fairly easy, however….. So after realizing the job was too big for me I turned to Angi's list and they connected me to Garner Plumbing. They showed up that afternoon and had the job fixed within a half an hour or just a little more. I feel very confident in the work they did and they were very nice to work with. Would definitely recommend them to anyone needing plumbing service and the Jefferson, Athens, Winder area ."

Becki B on May 2024

Garner Plumbing, Inc., is a family owned and operated business, offering plumbing services for both commercial and residential applications. We specialize in resolving all types of plumbing problems. We can handle new installation, as well as, service for existing plumbing. We carry and install many major brands of electric, gas and tankless water heaters. Our service area includes Hall, Jackson, Barrow and Forsyth Counties. We are licensed, bonded and insured. Also, we offer 24 hour emergency services. We are extremely passionate about the work that we do and you can trust us to provide a high quality service at a fair and honest price. If you are looking for a plumber you can depend on, please call Garner Plumbing today!

"I can't thank the guys enough for coming to the rescue. I started a toilet repair that should have been fairly easy, however….. So after realizing the job was too big for me I turned to Angi's list and they connected me to Garner Plumbing. They showed up that afternoon and had the job fixed within a half an hour or just a little more. I feel very confident in the work they did and they were very nice to work with. Would definitely recommend them to anyone needing plumbing service and the Jefferson, Athens, Winder area ."

Becki B on May 2024


Avatar for Rooter Pro Plumbing GA
Rooter Pro Plumbing GA
4.97(
17
)
Approved Pro
Rooter Pro Plumbing GA
4.97(
17
)
Approved Pro
Customers say: Quick response
138 local quotes requested
4 years of experience

As a locally owned plumbing business hailing from Atlanta, Georgia, we take great pride in serving our community with top-notch indoor and underground plumbing solutions, along with expert septic services. Trust us to keep your home running smoothly. With a dedicated team and a commitment to excellence, we are here to meet all your plumbing needs. Count on us for reliable and professional service that you can depend on.

"Mike was great. He came out to my house and gave an estimate for replacing my water line. He scheduled my service for the next day. He was on time and had my water line replaced in about 3.5 hours or so."

David M on March 2025

As a locally owned plumbing business hailing from Atlanta, Georgia, we take great pride in serving our community with top-notch indoor and underground plumbing solutions, along with expert septic services. Trust us to keep your home running smoothly. With a dedicated team and a commitment to excellence, we are here to meet all your plumbing needs. Count on us for reliable and professional service that you can depend on.

"Mike was great. He came out to my house and gave an estimate for replacing my water line. He scheduled my service for the next day. He was on time and had my water line replaced in about 3.5 hours or so."

David M on March 2025


Avatar for Request the Best Plumber, LLC
Request the Best Plumber, LLC
9020 Ponderosa Trl
5.00(
9
)
Approved Pro
Request the Best Plumber, LLC
9020 Ponderosa Trl
5.00(
9
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

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 start to 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. Call us today!

"They are very real, and they try to help you as much as posssible. Try to find a solution that may be affordable."

Shannon A on April 2025

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 start to 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. Call us today!

"They are very real, and they try to help you as much as posssible. Try to find a solution that may be affordable."

Shannon A on April 2025


Avatar for TE Certified Electrical, Plumbing, Heating & Cooling
TE Certified Electrical, Plumbing, Heating & Cooling
9800 Old Dogwood Rd
4.84(
588
)
Approved Pro
TE Certified Electrical, Plumbing, Heating & Cooling
9800 Old Dogwood Rd
4.84(
588
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
862 local quotes requested

TE Certified Electrical, Plumbing, Heating & Cooling is a customer-focused residential service company. We fix & replace electrical, plumbing, and HVAC systems for Greater Atlanta homeowners. Please call our office to schedule your appointment today. 770-667-6937

"Prompt, reasonably priced"

Brigette G on March 2025

TE Certified Electrical, Plumbing, Heating & Cooling is a customer-focused residential service company. We fix & replace electrical, plumbing, and HVAC systems for Greater Atlanta homeowners. Please call our office to schedule your appointment today. 770-667-6937

"Prompt, reasonably priced"

Brigette G on March 2025

...
Showing 1-10 of 890

Tankless water heater installations FAQs

Yes, although they have a higher upfront cost compared to traditional units, tankless water heaters can be worth the investment for many homeowners. They heat water on demand, eliminating standby energy losses and leading to 24% to 34% greater energy efficiency for homes using up to 41 gallons of hot water daily. Tankless units last longer—around 20 years with proper maintenance—and require less space than traditional units. They also reduce the risk of leaks and water damage since there's no tank to corrode and fail.

Tankless water heaters, including gas-powered models, do require electricity to operate components like the ignition and control systems. This means they won't function during a power outage. If you live in an area prone to outages and want to ensure a continuous hot water supply, consider installing a battery backup system or generator to keep your tankless water heater running when the power goes out.

You should set your tankless water heater to 120 degrees Fahrenheit for optimal safety and efficiency, as recommended by the U.S. Consumer Product Safety Commission. Setting the temperature at 120 degrees prevents scalding accidents, particularly for children and the elderly, and reduces energy consumption. Temperatures above 140 degrees increase the risk of burns and promote mineral buildup, which can decrease the system's efficiency.

A 20-minute shower uses 50 to 60 gallons of water, assuming a flow rate of 2.5 to 3 gallons per minute. A typical whole-house tankless water heater can produce 4 to 8 gallons of hot water per minute, providing continuous hot water for long showers. By installing low-flow showerheads and reducing shower time, you decrease water consumption and energy costs, maximizing the efficiency of your tankless system.

With proper maintenance, a tankless water heater lasts around 20 years, significantly longer than conventional tank water heaters, which last between 8 and 12 years. Regular inspections and timely repairs can further extend its lifespan. To keep your tankless system operating efficiently, have it inspected or serviced annually and address any minor issues promptly by contacting a local tankless water heater repair service.

The homeowners guide to tankless water heater installations
From average costs to expert advice, get all the answers you need to get your job done.
A stylish toilet in bathroom
Apr 1, 2025
Apr 1, 2025
Budget for sewer ejector pump costs based on factors such as pump capacity, pump material, maintenance, professional labor, and more.
new toilet in modern bathroom
Mar 31, 2025
Mar 31, 2025
Learn how much toilet installation costs, exploring factors like labor, plumbing, removal fees, and additional expenses.
A drop of pure water dripping from the tap
Mar 28, 2025
Mar 28, 2025
The cost to fix a leaky faucet depends on the type of faucet, the cause of the leak, and the necessary parts. Most homeowners spend an average of $270 on this project.
Rainwater barrel in the garden
Mar 26, 2025
Mar 26, 2025
Explore the landscape of rainwater collection system costs and see how system size, storage location, and filtration impact your total investment.
Leaking water from a blue pipe underground
Mar 23, 2025
Mar 23, 2025
Use this guide to budget for slab leak repair costs based on factors like professional labor, detection, repair type, and related services.
master bathroom with modern steam shower
Mar 22, 2025
Mar 22, 2025
Use this guide to budget for steam shower costs, including factors such as size, labor, shower type, components, features, upgrades, and more.
Share project details to get started.