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Tankless water heater installers in Lawrenceville

Avatar for Showtime Express Plumbing
Showtime Express Plumbing
1701 Jessica Court
5.00(
3
)
Approved Pro
Showtime Express Plumbing
1701 Jessica Court
5.00(
3
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

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.

"Eric was very and professional"

Alexander J on June 2025

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.

"Eric was very and professional"

Alexander J on June 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 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 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 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
132 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 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
4060 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 Casteel Heating, Cooling, Plumbing & Electrical
Casteel Heating, Cooling, Plumbing & Electrical
778 PETTY RD
4.74(
88
)
Approved Pro
Casteel Heating, Cooling, Plumbing & Electrical
778 PETTY RD
4.74(
88
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1672 local quotes requested

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024

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FAQs for tankless water heater installation projects in Lawrenceville, GA

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 Lawrenceville, GA homeowners’ guide to tankless water heater installations
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