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 Williamston

Signature Plumbing
1001 Canterbury Rd
New on HomeAdvisorNew on Angi
Approved Pro
Signature Plumbing
1001 Canterbury Rd
New on AngiNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!


Avatar for Brookside Plumbing LLC
Brookside Plumbing LLC
357 Todd Rd
5.00(
2
)
Approved Pro
Brookside Plumbing LLC
357 Todd Rd
5.00(
2
)
Approved Pro
7 years of experience
Free onsite estimate

We are an experienced, local plumbing company that will provide nothing but the best solutions for your home or business! From busted water heaters to sewer clogs, our team takes great pride in both the quality of work being done and in our customer service! No corners cut! We specialize in Water, Sewer, and Gas piping systems for both residential and commercial customers.

"Nick called promptly and setup an appointment to fix my plumbing issue. He was able to come out that same day and stayed after hours to help find the problem! I was very impressed with his professionalism and how he updated me along the way. I would recommend his services if you are in need of a plumber!"

Margaret P on February 2025

We are an experienced, local plumbing company that will provide nothing but the best solutions for your home or business! From busted water heaters to sewer clogs, our team takes great pride in both the quality of work being done and in our customer service! No corners cut! We specialize in Water, Sewer, and Gas piping systems for both residential and commercial customers.

"Nick called promptly and setup an appointment to fix my plumbing issue. He was able to come out that same day and stayed after hours to help find the problem! I was very impressed with his professionalism and how he updated me along the way. I would recommend his services if you are in need of a plumber!"

Margaret P on February 2025


Avatar for The Water Heater Source LLC
The Water Heater Source LLC
105 Stubby Dr.
5.00(
8
)
Approved Pro
The Water Heater Source LLC
105 Stubby Dr.
5.00(
8
)
Approved Pro
2 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.

"Did a very good job with the flushing out of my tankless hot water heater"

Robert D on May 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.

"Did a very good job with the flushing out of my tankless hot water heater"

Robert D on May 2025


Avatar for Corley Plumbing Air Electric Inc
Corley Plumbing Air Electric Inc
8501 Pelham Rd
3.88(
4
)
Approved Pro
Corley Plumbing Air Electric Inc
8501 Pelham Rd
3.88(
4
)
Approved Pro
35 local quotes requested
39 years of experience

At Corley, we focus on skills and relational training for our technicians to give them all the "tools" that they need to be successful. We use a combination of trade organization training programs, in house trainers, and other outside technical classes. Corley provides quality, state of the art equipment such as electronic leak detection, video pipeline inspection systems, and rolling warehouses. Vehicles stocked with most parts needed for the plumbing and electrical service and repair business. All of this is to offer you the services of the best plumbing, air and electric company in Greenville, SC. Also serving Mauldin, Simpsonville, Travelers Rest, Easley, Piedmont & Marietta, SC.

"These folks were prompt, competent, and fairly priced. Iâ d use them again, and recommend them to anyone."

Richard B on November 2024

At Corley, we focus on skills and relational training for our technicians to give them all the "tools" that they need to be successful. We use a combination of trade organization training programs, in house trainers, and other outside technical classes. Corley provides quality, state of the art equipment such as electronic leak detection, video pipeline inspection systems, and rolling warehouses. Vehicles stocked with most parts needed for the plumbing and electrical service and repair business. All of this is to offer you the services of the best plumbing, air and electric company in Greenville, SC. Also serving Mauldin, Simpsonville, Travelers Rest, Easley, Piedmont & Marietta, SC.

"These folks were prompt, competent, and fairly priced. Iâ d use them again, and recommend them to anyone."

Richard B on November 2024


Avatar for Preferred Home Services, LLC
Preferred Home Services, LLC
11 Task Industrial Ct
4.78(
30
)
Approved Pro
Preferred Home Services, LLC
11 Task Industrial Ct
4.78(
30
)
Approved Pro
Customers say: True professional
306 local quotes requested
11 years of experience

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.

"They're good. Just expensive though."

Abanoub G on May 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.

"They're good. Just expensive though."

Abanoub G on May 2025


Avatar for Five Star Plumbing Heating Cooling Electrical & Insulation
Five Star Plumbing Heating Cooling Electrical & Insulation
3385 Brushy Creek Road
4.69(
31
)
Approved Pro
Five Star Plumbing Heating Cooling Electrical & Insulation
3385 Brushy Creek Road
4.69(
31
)
Approved Pro
Customers say: True professional
77 local quotes requested
25 years of experience

Why does it seem that the worst plumbing or air conditioning problems happen when you least expect it? Your AC fails in the middle of a record heat wave, you find a water leak right as you’re leaving for vacation, or your heater stops working in the dead of winter. Whether you need routine maintenance to prevent such issues in the first place, or a trusted technician to handle a plumbing or air conditioning emergency, you can trust the team at Five Star Plumbing Heating Cooling.

"Chad did a fantastic job taking care of my PEX pinhole leak. He was able to come the same day, was fast, friendly and knowledgeable."

Darren M on December 2024

Why does it seem that the worst plumbing or air conditioning problems happen when you least expect it? Your AC fails in the middle of a record heat wave, you find a water leak right as you’re leaving for vacation, or your heater stops working in the dead of winter. Whether you need routine maintenance to prevent such issues in the first place, or a trusted technician to handle a plumbing or air conditioning emergency, you can trust the team at Five Star Plumbing Heating Cooling.

"Chad did a fantastic job taking care of my PEX pinhole leak. He was able to come the same day, was fast, friendly and knowledgeable."

Darren M on December 2024


Avatar for TUCK & HOWELL INC
TUCK & HOWELL INC
12990 East Wade Hampton Blvd Suite A
5.00(
5
)
Approved Pro
TUCK & HOWELL INC
12990 East Wade Hampton Blvd Suite A
5.00(
5
)
Approved Pro
56 years of experience
Free onsite estimate

Hi, we?re Tuck & Howell Plumbing, Heating & Air, proudly serving our community since 1969. With over five decades of experience, we?ve built a solid reputation for reliable, high-quality plumbing, heating, and cooling services. We're passionate about helping homeowners and businesses stay comfortable, efficient, and safe?no matter the season. Our licensed experts use advanced tools and technology to deliver lasting solutions, whether it?s plumbing repairs and installations, AC repair, tankless water heater installation, smart thermostat setup, duct cleaning, whole-home generators, encapsulation services, and more. We?re committed to doing the job right the first time, with integrity and exceptional customer care. If you're looking for experienced professionals you can trust for all your HVAC and plumbing needs, we?re here and ready to help.

Hi, we?re Tuck & Howell Plumbing, Heating & Air, proudly serving our community since 1969. With over five decades of experience, we?ve built a solid reputation for reliable, high-quality plumbing, heating, and cooling services. We're passionate about helping homeowners and businesses stay comfortable, efficient, and safe?no matter the season. Our licensed experts use advanced tools and technology to deliver lasting solutions, whether it?s plumbing repairs and installations, AC repair, tankless water heater installation, smart thermostat setup, duct cleaning, whole-home generators, encapsulation services, and more. We?re committed to doing the job right the first time, with integrity and exceptional customer care. If you're looking for experienced professionals you can trust for all your HVAC and plumbing needs, we?re here and ready to help.


Avatar for Crawfords Well Service LLC
Crawfords Well Service LLC
PO Box 313
5.00(
20
)
Approved Pro
Crawfords Well Service LLC
PO Box 313
5.00(
20
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
39 local quotes requested

With over 20 years of well experience, we are here to help you with all your well needs you may have. Water Well Repair Service & Filter Systems

"Always showed up as promised and quality work! Greatful for their service"

Debbie N on November 2022

With over 20 years of well experience, we are here to help you with all your well needs you may have. Water Well Repair Service & Filter Systems

"Always showed up as promised and quality work! Greatful for their service"

Debbie N on November 2022


Avatar for Foothills Plumbing & Construction
Foothills Plumbing & Construction
509 Brightfield Lane
4.96(
124
)
Approved Pro
Foothills Plumbing & Construction
509 Brightfield Lane
4.96(
124
)
Approved Pro
Customers say: Quality work
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
615 local quotes requested

Since 2009, Foothills Plumbing and Construction has provided dependable, honest plumbing service to homeowners in areas surrounding Greenville, SC. When our plumber arrives at your home, you are assured the best plumbing service in the industry. We offer 24 hour emergency plumbing for leaks and frozen pipes.We cover any and all aspects of your kitchen and bathrooms from upgrading fixtures to complete renovations. Foothills Plumbing and Construction was awarded with the Angieslist Super Service Award for 2016. We value our reputation and quality of our work. Don’t wait, call us now!

"Hunter and Sean are the real deal! My water heater crapped out suddenly on New Year’s Eve. I went to Angi and filled out the info and less than 10 minutes later, Hunter calls me! Told me he’d be out the next day….new year’s day!! Showed up when he said he would, diagnosed the issue quoted me a price and said he’d be there “tomorrow morning”. Showed up, just like he said he would for the price he quoted. Everything went well, and I wholly recommend Foothills Plumbing."

John M on January 2025

Since 2009, Foothills Plumbing and Construction has provided dependable, honest plumbing service to homeowners in areas surrounding Greenville, SC. When our plumber arrives at your home, you are assured the best plumbing service in the industry. We offer 24 hour emergency plumbing for leaks and frozen pipes.We cover any and all aspects of your kitchen and bathrooms from upgrading fixtures to complete renovations. Foothills Plumbing and Construction was awarded with the Angieslist Super Service Award for 2016. We value our reputation and quality of our work. Don’t wait, call us now!

"Hunter and Sean are the real deal! My water heater crapped out suddenly on New Year’s Eve. I went to Angi and filled out the info and less than 10 minutes later, Hunter calls me! Told me he’d be out the next day….new year’s day!! Showed up when he said he would, diagnosed the issue quoted me a price and said he’d be there “tomorrow morning”. Showed up, just like he said he would for the price he quoted. Everything went well, and I wholly recommend Foothills Plumbing."

John M on January 2025


Avatar for Benjamin Franklin Plumbing
Benjamin Franklin Plumbing
3307 New Easley Hwy
4.00(
61
)
Approved Pro
Benjamin Franklin Plumbing
3307 New Easley Hwy
4.00(
61
)
Approved Pro
Customers say: Super punctual
667 local quotes requested
22 years of experience

As one of the fastest growing franchises in the country, Benjamin Franklin Plumbing proudly embodies the traditional values of hard work, community spirit, and education the founding founder they're named after is known for. This is especially apparent with the way the company treats both customers and employees. Benjamin Franklin Plumbing provides all employees with a thriving work environment including continuing education to keep up with the latest methods and technologies in the field. In turn, the employees themselves go out of their way to be there for each customer, from providing quality plumbing services to upfront pricing and energy efficiency tips. Additionally, Benjamin Franklin offers flexible financing options and special discounts to military personnel, policemen, firefighters, and EMS. Call now to schedule a service and receive accurate results and peace of mind. The punctual Greenville plumbers are also available 24/7 for any emergency plumbing.

"On 6/1/2022 a technician shows up for a water leak under my home, the tech was friendly, on time, and professional, in appearance. I point out where the leak is, after 30 minutes he says the main pipe is probably plugged which created additional weight, possibly stretching supports and as a result the shower drain pipe had been disconnected. He said he would write up a quote, and I was shocked to find it was for 10k. I refused service but asked for a detailed write up for what needed because I was paying an $89.00 Regular Service Fee (29-89) and another fee, MISC level 1 1 which was $97.00 for god knows what. Here is the write up I received from the technician.(More commentary below) "END TASKS*/ upon arrival customer had leak in crawl space and shower has disconnected the reason this disconnected is due to the weight of the sewer line this line is full of water and when wisher is ran it backs up out of this line causing a leak this line has fallen in ,multiple spots and is sagging in multiple spots this is abs piping. I gave options to repipe both bathrooms and then after run camera to locate septic tank. The reason customer is not backing up into house is because everything comes out this shower drain. I gave customer the options for repipe he did not want to continue with any work there is not a cleanout outside for me to camera this line and cannot locate where line exits home for ability to locate septic tank. Options were provided customer did not want to proceed with any work inspection fee was charged. Repipe and camera locate septic Camera Locate Septic Tank from Clean Out 1x $369.00 2 bath/kitchen/laundry drain only L1 1x $9,552.00 Deposit on Ben Society Agreement 1yr $99.00 Start date: 06/01/2022 Subtotal: $10,020.00 Discount: - $315.00 Tax: TBD $9,705.00 I asked how long this work would take and was told 2-3 days. Simple math tells me I could pay a guy 100$ an hour for 97 hours, or 2 full weeks and then some at that rate. I thought to myself, ok, he does not want to do the work so he priced himself out. I am ok with that, but the business owner should be made aware of what is going on and cut these guys loose because there are plenty of other options out there. I am also shocked at the lack of detail for pricing, for 10k I need know specifically what is being done, on a line by line basis. After all, I paid almost 200 dollars and I would like to think I am owed that much. One last detail, I did call in and spoke to "Angel" who said she would relay my concerns and that someone would be calling me back. I am not holding my breath."

George R on June 2022

As one of the fastest growing franchises in the country, Benjamin Franklin Plumbing proudly embodies the traditional values of hard work, community spirit, and education the founding founder they're named after is known for. This is especially apparent with the way the company treats both customers and employees. Benjamin Franklin Plumbing provides all employees with a thriving work environment including continuing education to keep up with the latest methods and technologies in the field. In turn, the employees themselves go out of their way to be there for each customer, from providing quality plumbing services to upfront pricing and energy efficiency tips. Additionally, Benjamin Franklin offers flexible financing options and special discounts to military personnel, policemen, firefighters, and EMS. Call now to schedule a service and receive accurate results and peace of mind. The punctual Greenville plumbers are also available 24/7 for any emergency plumbing.

"On 6/1/2022 a technician shows up for a water leak under my home, the tech was friendly, on time, and professional, in appearance. I point out where the leak is, after 30 minutes he says the main pipe is probably plugged which created additional weight, possibly stretching supports and as a result the shower drain pipe had been disconnected. He said he would write up a quote, and I was shocked to find it was for 10k. I refused service but asked for a detailed write up for what needed because I was paying an $89.00 Regular Service Fee (29-89) and another fee, MISC level 1 1 which was $97.00 for god knows what. Here is the write up I received from the technician.(More commentary below) "END TASKS*/ upon arrival customer had leak in crawl space and shower has disconnected the reason this disconnected is due to the weight of the sewer line this line is full of water and when wisher is ran it backs up out of this line causing a leak this line has fallen in ,multiple spots and is sagging in multiple spots this is abs piping. I gave options to repipe both bathrooms and then after run camera to locate septic tank. The reason customer is not backing up into house is because everything comes out this shower drain. I gave customer the options for repipe he did not want to continue with any work there is not a cleanout outside for me to camera this line and cannot locate where line exits home for ability to locate septic tank. Options were provided customer did not want to proceed with any work inspection fee was charged. Repipe and camera locate septic Camera Locate Septic Tank from Clean Out 1x $369.00 2 bath/kitchen/laundry drain only L1 1x $9,552.00 Deposit on Ben Society Agreement 1yr $99.00 Start date: 06/01/2022 Subtotal: $10,020.00 Discount: - $315.00 Tax: TBD $9,705.00 I asked how long this work would take and was told 2-3 days. Simple math tells me I could pay a guy 100$ an hour for 97 hours, or 2 full weeks and then some at that rate. I thought to myself, ok, he does not want to do the work so he priced himself out. I am ok with that, but the business owner should be made aware of what is going on and cut these guys loose because there are plenty of other options out there. I am also shocked at the lack of detail for pricing, for 10k I need know specifically what is being done, on a line by line basis. After all, I paid almost 200 dollars and I would like to think I am owed that much. One last detail, I did call in and spoke to "Angel" who said she would relay my concerns and that someone would be calling me back. I am not holding my breath."

George R on June 2022

...
Showing 1-10 of 619

FAQs for tankless water heater installation projects in Williamston, SC

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.