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Tankless water heater repair pros in Mauldin

Avatar for Plumb ER
Plumb ER
20 Simmonsville Rd #2504
5.00(
1
)
Approved Pro
Plumb ER
20 Simmonsville Rd #2504
5.00(
1
)
Approved Pro
18 years of experience
Free onsite estimate

Plumb ER is a locally/owner run and operated company with over 15 years experience. We are your one stop spot for all of your residential and commercial plumbing needs. We specialize in all facets of plumbing. We are extremely competitive and understand the value of building life long relationships with our customers. Once you use us, you will never have to find another plumbing contractor again. Workmanship guaranteed. Prompt reply to your request.

"Extremely professional and the work was done with high quality and in a timely manner. Even identified an issue we did not know we had and gave a resolution that was honest and fair."

Rodney V on June 2025

Plumb ER is a locally/owner run and operated company with over 15 years experience. We are your one stop spot for all of your residential and commercial plumbing needs. We specialize in all facets of plumbing. We are extremely competitive and understand the value of building life long relationships with our customers. Once you use us, you will never have to find another plumbing contractor again. Workmanship guaranteed. Prompt reply to your request.

"Extremely professional and the work was done with high quality and in a timely manner. Even identified an issue we did not know we had and gave a resolution that was honest and fair."

Rodney V on June 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 Ethical Plumbing
Ethical Plumbing
416 Waddell Rd
4.75(
70
)
Approved Pro
Ethical Plumbing
416 Waddell Rd
4.75(
70
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
38 local quotes requested

It is our pledge, as a family run business with 4 decades of experience, to give you: Top quality workmanship, professional service and affordable pricing. We look forward to meeting you and your families as we strive to give you the best possible plumbing service available.

"Done promptly and efficiently."

Charles J on May 2025

It is our pledge, as a family run business with 4 decades of experience, to give you: Top quality workmanship, professional service and affordable pricing. We look forward to meeting you and your families as we strive to give you the best possible plumbing service available.

"Done promptly and efficiently."

Charles J 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
74 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
41 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 Ethical Plumbing
Ethical Plumbing
416 Waddell Rd
4.68(
317
)
Approved Pro
Ethical Plumbing
416 Waddell Rd
4.68(
317
)
Approved Pro
Customers say: Super punctual
390 local quotes requested
15 years of experience

LOCAL, Master Plumbers at your service. Focused on Quality Workmanship, Professional Service and Affordable Pricing.

"Djdjdjfjfnfj"

Eric S on January 2025

LOCAL, Master Plumbers at your service. Focused on Quality Workmanship, Professional Service and Affordable Pricing.

"Djdjdjfjfnfj"

Eric S 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
659 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


Avatar for C&M Septic and Plumbing
C&M Septic and Plumbing
P.O. Box 753
4.33(
6
)
Approved Pro
C&M Septic and Plumbing
P.O. Box 753
4.33(
6
)
Approved Pro
Customers say: True professional
211 local quotes requested
6 years of experience

C&M Septic and Plumbing is a family owned company that is here to help with reasonable pricing. We cover all Septic and Plumbing needs. We are quick, efficient, and great at what we do. We offer great pricing and even financing for those really unexpected costs.

"I made an appt with them for Wednesday from noon to 2. They no showed and didn’t bother to call. I called back Friday and they agreed to come out right then. However, the truck didn’t have enough to pump my entire septic and they said they would come out first thing Monday. They no showed again on Monday. Four days later they tried to contact me to reschedule. I refused at that point. I can’t be kept waiting for 2 weeks for whenever they feel it is convenient for them…if you make an appt, keep it!"

Paulo S on March 2024

C&M Septic and Plumbing is a family owned company that is here to help with reasonable pricing. We cover all Septic and Plumbing needs. We are quick, efficient, and great at what we do. We offer great pricing and even financing for those really unexpected costs.

"I made an appt with them for Wednesday from noon to 2. They no showed and didn’t bother to call. I called back Friday and they agreed to come out right then. However, the truck didn’t have enough to pump my entire septic and they said they would come out first thing Monday. They no showed again on Monday. Four days later they tried to contact me to reschedule. I refused at that point. I can’t be kept waiting for 2 weeks for whenever they feel it is convenient for them…if you make an appt, keep it!"

Paulo S on March 2024


Avatar for Sanford & Son Plumbing & Drain Service
Sanford & Son Plumbing & Drain Service
315 Catterick Way
5.00(
10
)
Approved Pro
Sanford & Son Plumbing & Drain Service
315 Catterick Way
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
320 local quotes requested

Sanford & Son Plumbing & Drain Service is a family-owned business with 30 years of experience. We specialize in same-day service, ensuring your plumbing needs are met promptly. Customer satisfaction is our top priority, and we offer free estimates and advice with a cheerful attitude. Known for our loyalty, precision, and attention to detail, we are your trusted plumbing and drain service provider. Call today for fast, reliable service!

"They did a great job at a good price. If I have any more repairs I will definitely use Sanford and Son Plumbing again"

Hoyle D on June 2025

Sanford & Son Plumbing & Drain Service is a family-owned business with 30 years of experience. We specialize in same-day service, ensuring your plumbing needs are met promptly. Customer satisfaction is our top priority, and we offer free estimates and advice with a cheerful attitude. Known for our loyalty, precision, and attention to detail, we are your trusted plumbing and drain service provider. Call today for fast, reliable service!

"They did a great job at a good price. If I have any more repairs I will definitely use Sanford and Son Plumbing again"

Hoyle D on June 2025

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FAQs for tankless water heater installation projects in Mauldin, 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.

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