Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros 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 repair pros in Lawrenceville

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
32 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 Z Plumberz of Atlanta
Z Plumberz of Atlanta
4840 Old National Hwy
5.00(
5
)
Approved Pro
Z Plumberz of Atlanta
4840 Old National Hwy
5.00(
5
)
Approved Pro
97 local quotes requested
1 years of experience

We are a locally owned and operated company, that values honesty and integrity, and treats your home as if it were our own. We offer a variety of exterior services, that are customized to each individual project. You will find us to be competitively priced, paying close attention to the details of each, and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

We are a locally owned and operated company, that values honesty and integrity, and treats your home as if it were our own. We offer a variety of exterior services, that are customized to each individual project. You will find us to be competitively priced, paying close attention to the details of each, and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!


DaCosta Plumbing & Drain LLC
279 W Crogan St.
4.54(
12
)
Approved Pro
DaCosta Plumbing & Drain LLC
279 W Crogan St.
4.54(
12
)
Approved Pro
Customers say: Quick response
27 years of experience
Free onsite estimate

DaCosta Plumbing & Drain LLC, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"DaCosta Plumbing was a breath of fresh air! From start to finish, they were professional, respectful, and efficient. The technician showed up on time, diagnosed the issue fast, and had it fixed the same day. What I appreciated most was how friendly and approachable they were - I didn't feel rushed or talked down to. You can tell they take pride in their work. I'll definitely be using them again if I ever need plumbing help!"

Jazmaine P on July 2025

DaCosta Plumbing & Drain LLC, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"DaCosta Plumbing was a breath of fresh air! From start to finish, they were professional, respectful, and efficient. The technician showed up on time, diagnosed the issue fast, and had it fixed the same day. What I appreciated most was how friendly and approachable they were - I didn't feel rushed or talked down to. You can tell they take pride in their work. I'll definitely be using them again if I ever need plumbing help!"

Jazmaine P on July 2025


Avatar for Keep Smiling Plumbing & Electric
Keep Smiling Plumbing & Electric
3755 Harrison Rd SW Suite 200
4.40(
56
)
Approved Pro
Keep Smiling Plumbing & Electric
3755 Harrison Rd SW Suite 200
4.40(
56
)
Approved Pro
Customers say: Quick response
363 local quotes requested
40 years of experience

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric heating and cooling business, serving Gwinnett County, Georgia. We hold Master's licenses in all three trades and are members of the Plumbing Heating Cooling & Mechanical Association of Georgia. Keep Smiling Plumbing Electric Heating and Cooling is there when you need us, ready to take care of any problem that you may have with your plumbing electrical or heating and cooling systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"Thank you!"

Stephanie E on July 2025

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric heating and cooling business, serving Gwinnett County, Georgia. We hold Master's licenses in all three trades and are members of the Plumbing Heating Cooling & Mechanical Association of Georgia. Keep Smiling Plumbing Electric Heating and Cooling is there when you need us, ready to take care of any problem that you may have with your plumbing electrical or heating and cooling systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"Thank you!"

Stephanie E on July 2025


Avatar for Grey Plumbing, LLC
Grey Plumbing, LLC
346 Fairfield Drive
5.00(
21
)
Approved Pro
Grey Plumbing, LLC
346 Fairfield Drive
5.00(
21
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
4 years of experience

I’ve been a plumber for about 9 years and I love what I do! My company is all about the American way, providing the best goods and services at the best prices possible. We appreciate your business:)

"This company exceeds my expectations. Austin is knowledgeable and strives to meet all your needs. I hired him to replace a hot water heater, but he ended up finishing other plumbing projects that my renovation contractor failed out. Justin also came to assist and was great. This is my forever go to Plumbing Company."

Julie J on January 2025

I’ve been a plumber for about 9 years and I love what I do! My company is all about the American way, providing the best goods and services at the best prices possible. We appreciate your business:)

"This company exceeds my expectations. Austin is knowledgeable and strives to meet all your needs. I hired him to replace a hot water heater, but he ended up finishing other plumbing projects that my renovation contractor failed out. Justin also came to assist and was great. This is my forever go to Plumbing Company."

Julie J on January 2025


Avatar for Academy Homes LLC
Academy Homes LLC
5840 Fairway View Dr, Suwanee GA 30024
5.00(
2
)
Approved Pro
Academy Homes LLC
5840 Fairway View Dr, Suwanee GA 30024
5.00(
2
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
369 local quotes requested

We specialize on general Home Remodeling. Exterior: 1. James Hardie siding. 2. Roofing 3. Windows & Doors. 4. Decks. 5. Shutters. 6. Pressure Washing. Interior: 7. Kitchens. 8. Bathrooms. 9.flooring. 10. Garage Epoxy. 11. Lights, fans. 12. Paint. 28 years of experience. We love what we do!!

"Excellent!"

Mrs. Ford, f on January 2025

We specialize on general Home Remodeling. Exterior: 1. James Hardie siding. 2. Roofing 3. Windows & Doors. 4. Decks. 5. Shutters. 6. Pressure Washing. Interior: 7. Kitchens. 8. Bathrooms. 9.flooring. 10. Garage Epoxy. 11. Lights, fans. 12. Paint. 28 years of experience. We love what we do!!

"Excellent!"

Mrs. Ford, f on January 2025


Avatar for Encompass Contracting LLC
Encompass Contracting LLC
1951 Old Bishop Road
4.75(
65
)
Approved Pro
Encompass Contracting LLC
1951 Old Bishop Road
4.75(
65
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
134 local quotes requested

Offering the best in both exterior and interior residential remodeling and repairs, our trained team brings together form, function, and budget to deliver your home renovation dreams. Proud to be a small company, we are able to give you all the benefits that come with it – our prices are reasonable and we only deliver you quality, personalized service. Licensed and insured business. We offer free estimates. All major credit cards accepted.

"Excellent! Professional in every aspect. Crews were always on time and had a keen attention to detail. The site was always in order & clean. Jamie is great & easy to work with, he can come up with a workable solution to any situation. Looking forward to working with Encompass & crew soon on another project."

Ken S on November 2024

Offering the best in both exterior and interior residential remodeling and repairs, our trained team brings together form, function, and budget to deliver your home renovation dreams. Proud to be a small company, we are able to give you all the benefits that come with it – our prices are reasonable and we only deliver you quality, personalized service. Licensed and insured business. We offer free estimates. All major credit cards accepted.

"Excellent! Professional in every aspect. Crews were always on time and had a keen attention to detail. The site was always in order & clean. Jamie is great & easy to work with, he can come up with a workable solution to any situation. Looking forward to working with Encompass & crew soon on another project."

Ken S on November 2024


Avatar for Rooter Johnson Plumbing
Rooter Johnson Plumbing
5.00(
26
)
Approved Pro
Rooter Johnson Plumbing
5.00(
26
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

Rooter Johnson Plumbing provides same day repairs. We are experienced and licensed plumbers based in Atlanta, GA and servicing all surrounding areas. We provide a fast, efficient and high-quality repair and installation service with affordable pricing. Give us a call or click for an estimate today!

"The owner of the company came and disassembled my sewage pump in my basement and tested it. It had some slight oil leakage but was still working properly. Nevertheless ,Brad and I concurred that replacing the pump now was the wiser choice. He offered to go to his supplier to secure a new pump and return to install it the same day which saved me some money and eliminated redundant work.He returned with a top of the line Liberty and completed the installation the same day which I appreciated. Brad and his partner Jose are very experienced young plumbers and I will definitely use them in handling my future plumbing needs."

Jerry R on June 2025

Rooter Johnson Plumbing provides same day repairs. We are experienced and licensed plumbers based in Atlanta, GA and servicing all surrounding areas. We provide a fast, efficient and high-quality repair and installation service with affordable pricing. Give us a call or click for an estimate today!

"The owner of the company came and disassembled my sewage pump in my basement and tested it. It had some slight oil leakage but was still working properly. Nevertheless ,Brad and I concurred that replacing the pump now was the wiser choice. He offered to go to his supplier to secure a new pump and return to install it the same day which saved me some money and eliminated redundant work.He returned with a top of the line Liberty and completed the installation the same day which I appreciated. Brad and his partner Jose are very experienced young plumbers and I will definitely use them in handling my future plumbing needs."

Jerry R on June 2025


Avatar for Keep Smiling Plumbing & Electric
Keep Smiling Plumbing & Electric
3705 Harrison Rd SW
4.66(
131
)
Approved Pro
Keep Smiling Plumbing & Electric
3705 Harrison Rd SW
4.66(
131
)
Approved Pro
Customers say: Super punctual
4023 local quotes requested
40 years of experience

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"They told us "Our dispatch fee to come out is $39 and we waive that towards any work or repairs, including diagnostics." The electrician went to check and stayed at the property for less than 5 mins after confirmation to do full diagnostic of the electrical system. I don't think less than 5 mins is enough to run a full diagnostic and later on advise to upgrade the whole panel."

John P on May 2025

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"They told us "Our dispatch fee to come out is $39 and we waive that towards any work or repairs, including diagnostics." The electrician went to check and stayed at the property for less than 5 mins after confirmation to do full diagnostic of the electrical system. I don't think less than 5 mins is enough to run a full diagnostic and later on advise to upgrade the whole panel."

John P on May 2025


Avatar for Stars and Pipes Plumbing Atlanta
Stars and Pipes Plumbing Atlanta
1014 Parkview Way Southwest
5.00(
6
)
Approved Pro
Stars and Pipes Plumbing Atlanta
1014 Parkview Way Southwest
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
223 local quotes requested

Welcome to Stars and Pipes Plumbing, a Veteran-Owned and Family-Operated business dedicated to delivering reliable and high-quality plumbing solutions. With a commitment to integrity, fair pricing, and clear communication, we proudly serve Atlanta and surrounding areas. Discover what makes us your trusted plumbing partner! Give us a call with any questions you may have!

"I would highly recommend Sean at Stars and Pipes Plumbing! I was building out a new bathroom in my basement and he helped with so many things. He’s super knowledgeable and patient and was available over the phone when I was tinkering with some things on my own. He also recently helped replace my water heater burner and pressure relief valve and got it working back in no time. He’s a true professional and someone I will continue to use in the future."

AJ H on February 2025

Welcome to Stars and Pipes Plumbing, a Veteran-Owned and Family-Operated business dedicated to delivering reliable and high-quality plumbing solutions. With a commitment to integrity, fair pricing, and clear communication, we proudly serve Atlanta and surrounding areas. Discover what makes us your trusted plumbing partner! Give us a call with any questions you may have!

"I would highly recommend Sean at Stars and Pipes Plumbing! I was building out a new bathroom in my basement and he helped with so many things. He’s super knowledgeable and patient and was available over the phone when I was tinkering with some things on my own. He also recently helped replace my water heater burner and pressure relief valve and got it working back in no time. He’s a true professional and someone I will continue to use in the future."

AJ H on February 2025

...
Showing 1-10 of 920

FAQs for tankless water heater installation projects in Lawrenceville, GA

Professional flushing services for tankless water heaters run about $200 per visit. This essential maintenance procedure eliminates mineral deposits from critical components, particularly the heat exchanger. While homeowners can purchase DIY flushing kits for $50 to $100, professional service offers the advantage of thorough cleaning with proper techniques. Professional maintenance also includes inspection of additional components that might need attention.

Industry experts and manufacturers recommend annual maintenance for tankless water heaters, with more frequent service (every six months) for homes with challenging water conditions. This regular attention prevents efficiency losses and extends the unit's operational lifespan. Watch for warning signs like reduced water temperature, inconsistent performance, or system error codes that might indicate maintenance is needed sooner than scheduled.

Neglecting regular maintenance allows mineral scale to accumulate within your system, restricting water flow and reducing heating efficiency. This forces your unit to work harder, consuming more energy while delivering less satisfactory performance. Over time, this strain can lead to component failures, inconsistent water temperatures, and premature system replacement. Additionally, most manufacturers require documentation of regular maintenance to honor warranty coverage for major components.

Share project details to get started.