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Tankless water heater repair pros in Suwanee

Avatar for Keep Smiling Plumbing & Electric
Keep Smiling Plumbing & Electric
3755 Harrison Rd SW Suite 200
4.39(
55
)
Approved Pro
Keep Smiling Plumbing & Electric
3755 Harrison Rd SW Suite 200
4.39(
55
)
Approved Pro
Customers say: Quick response
333 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.

"Did a wonderful and amazing job . The technician that came out was helpful and respectful of both our home and the people. Would definitely choose this company again!!"

Christin R on June 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.

"Did a wonderful and amazing job . The technician that came out was helpful and respectful of both our home and the people. Would definitely choose this company again!!"

Christin R on June 2025


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
42 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 Casteel Heating & Cooling, LLC
Casteel Heating & Cooling, LLC
305 Petty Rd.
New on HomeAdvisorNew on Angi
Approved Pro
Casteel Heating & Cooling, LLC
305 Petty Rd.
New on AngiNew on HomeAdvisor
Approved Pro
42 local quotes requested
38 years of experience

Casteel Heating, Cooling, Plumbing and Electrical is the company you can trust with your home service needs. We offer installation, repair and replacement services based on flat rate pricing and never any emergency fees. Our highly educated technicians pride themselves on their craftsmanship and customer service. Casteel offers industry leading warranties and guarantees to include our Amazing Care Guarantee. You get 5 star service or your service call is free! At Casteel we know your time and money are valuable, for this reason we provide you with the ability to track your technician right to your door. With fair pricing, top notch team members and our Amazing Care Guarantee, you will not go wrong with Casteel as your home services company of choice.

Casteel Heating, Cooling, Plumbing and Electrical is the company you can trust with your home service needs. We offer installation, repair and replacement services based on flat rate pricing and never any emergency fees. Our highly educated technicians pride themselves on their craftsmanship and customer service. Casteel offers industry leading warranties and guarantees to include our Amazing Care Guarantee. You get 5 star service or your service call is free! At Casteel we know your time and money are valuable, for this reason we provide you with the ability to track your technician right to your door. With fair pricing, top notch team members and our Amazing Care Guarantee, you will not go wrong with Casteel as your home services company of choice.


Avatar for Z Plumberz of Atlanta
Z Plumberz of Atlanta
4840 Old National Hwy
New on HomeAdvisorNew on Angi
Approved Pro
Z Plumberz of Atlanta
4840 Old National Hwy
New on AngiNew on HomeAdvisor
Approved Pro
55 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!


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
28 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 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 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
3637 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
1820 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

"The heating was fixed but I am very unhappy about the pricing and lack of transparency. The service technician tried to upsell me a $200 safety valve that I “absolutely needed” (but online said should be able to be installed for less than $50 and was just another added feature to shut off the AC if the drain was clogged). The technician said he would not charge me for the repair on my dampener but I got a $40 charge anyways after refusing to pay for the safety valve, which I said I would buy myself. When I had spoken with Casteel on the phone the night before, they said the $40 charge would be for a second HVAC unit, which ultimately did not get serviced. I never received a detailed explanation of these charges and instead said this was a “miscellaneous fee” for repairs. They got the job done but I do not think I would hire again solely because I felt like I was being taken advantage of for most of the visit. I could not get the $40 charge removed after calling Casteel and explaining the situation. So it was a $129 service call with no parts replaced more expensive than other providers."

Shihua L on March 2019

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

"The heating was fixed but I am very unhappy about the pricing and lack of transparency. The service technician tried to upsell me a $200 safety valve that I “absolutely needed” (but online said should be able to be installed for less than $50 and was just another added feature to shut off the AC if the drain was clogged). The technician said he would not charge me for the repair on my dampener but I got a $40 charge anyways after refusing to pay for the safety valve, which I said I would buy myself. When I had spoken with Casteel on the phone the night before, they said the $40 charge would be for a second HVAC unit, which ultimately did not get serviced. I never received a detailed explanation of these charges and instead said this was a “miscellaneous fee” for repairs. They got the job done but I do not think I would hire again solely because I felt like I was being taken advantage of for most of the visit. I could not get the $40 charge removed after calling Casteel and explaining the situation. So it was a $129 service call with no parts replaced more expensive than other providers."

Shihua L on March 2019


Avatar for Titan Contracting and Renovations
Titan Contracting and Renovations
Surrounding Areas
5.00(
19
)
Approved Pro
Titan Contracting and Renovations
Surrounding Areas
5.00(
19
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
991 local quotes requested

Titan Contracting and Renovations specializes in basement finishing, kitchen and bathroom remodeling, additions, decks, screen porches, sunrooms, and ground up new home construction. 20+ yrs experience.

"John is a wonderful general contractor to partner with for any of your home renovation needs. He is positive, responsive, creative and highly organized in coordinating all the needed steps to be successful in the outcome. He brought only highly qualified craftsmen to our home that did exceeded our expectations in quality and result. His team all brought expertise and amazing end product. We love our "new" home and our neighborhood continues to compliment the wonderful transformation. Would not, and actually have not hesitated in giving John's contact information so that others can benefit. It is also important to note that we had seen two of his other significant home transformations. Both with very satisfied customers. Thank you John and your team!"

Mary M on March 2025

Titan Contracting and Renovations specializes in basement finishing, kitchen and bathroom remodeling, additions, decks, screen porches, sunrooms, and ground up new home construction. 20+ yrs experience.

"John is a wonderful general contractor to partner with for any of your home renovation needs. He is positive, responsive, creative and highly organized in coordinating all the needed steps to be successful in the outcome. He brought only highly qualified craftsmen to our home that did exceeded our expectations in quality and result. His team all brought expertise and amazing end product. We love our "new" home and our neighborhood continues to compliment the wonderful transformation. Would not, and actually have not hesitated in giving John's contact information so that others can benefit. It is also important to note that we had seen two of his other significant home transformations. Both with very satisfied customers. Thank you John and your team!"

Mary M on March 2025


Avatar for Homevantage
Homevantage
5.00(
10
)
Approved Pro
Homevantage
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
549 local quotes requested

HomeVantage is an insured and licensed residential remodel contractor that specializes in basements, bathrooms, kitchens, and decks. We are the contractor you can trust to show up, communicate early and often, and deliver with the quality you expect. Be sure to check out our website at www.HomeVantage.net.

"Everyone at Homevantage was a pleasure to work with. It was terrific to work with a company that was responsive when we had questions and completed the project on time and within the budget we planned for."

Courtney V on January 2025

HomeVantage is an insured and licensed residential remodel contractor that specializes in basements, bathrooms, kitchens, and decks. We are the contractor you can trust to show up, communicate early and often, and deliver with the quality you expect. Be sure to check out our website at www.HomeVantage.net.

"Everyone at Homevantage was a pleasure to work with. It was terrific to work with a company that was responsive when we had questions and completed the project on time and within the budget we planned for."

Courtney V on January 2025

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FAQs for tankless water heater installation projects in Suwanee, 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.

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