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 Lancaster

Avatar for ARS Commercial Plumbing
ARS Commercial Plumbing
30 Rosebud Ave
5.00(
2
)
Approved Pro
ARS Commercial Plumbing
30 Rosebud Ave
5.00(
2
)
Approved Pro
Customers say: Quick response
8 years of experience
Free onsite estimate

ARS-Commercial Plumbing 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.

"Very courteous and knowledgeable, great attention to detail. Highly recommend."

Sandra L on June 2025

ARS-Commercial Plumbing 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.

"Very courteous and knowledgeable, great attention to detail. Highly recommend."

Sandra L on June 2025


BAPST WATER WELL DRILLING
9311 ST RTE 762
4.67(
15
)
Approved Pro
BAPST WATER WELL DRILLING
9311 ST RTE 762
4.67(
15
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
86 local quotes requested

We are a full service company,7 days a week.We service and install water wells,pumps,pressure tanks,water softeners.We also install vertical loop geothermal systems.

"Bapst did an amazing job. Their customer service was exceptional from first phone call, to the techs that came out to do the work. I would definitely hire again for any of my well needs."

Christopher E on February 2024

We are a full service company,7 days a week.We service and install water wells,pumps,pressure tanks,water softeners.We also install vertical loop geothermal systems.

"Bapst did an amazing job. Their customer service was exceptional from first phone call, to the techs that came out to do the work. I would definitely hire again for any of my well needs."

Christopher E on February 2024


Avatar for Greene's Plumbing Services
Greene's Plumbing Services
1653 Township Rd 320 SE
5.00(
19
)
Approved Pro
Greene's Plumbing Services
1653 Township Rd 320 SE
5.00(
19
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
250 local quotes requested

Welcome to Greene’s Plumbing, proudly servicing Columbus and the surrounding areas. Our goal is to complete your project to perfection. Our focus is building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"Excellent response, excellent service and very good price."

Kathleen H on June 2025

Welcome to Greene’s Plumbing, proudly servicing Columbus and the surrounding areas. Our goal is to complete your project to perfection. Our focus is building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"Excellent response, excellent service and very good price."

Kathleen H on June 2025


Avatar for Apex Plumbing, Heating and Air Pros
Apex Plumbing, Heating and Air Pros
6663 Huntley Rd Suite M
3.95(
96
)
Approved Pro
Apex Plumbing, Heating and Air Pros
6663 Huntley Rd Suite M
3.95(
96
)
Approved Pro
Customers say: Super punctual
3484 local quotes requested
6 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade, and will do our best to keep you as educated as we can on your particular task or project. We look forward to earing your business! Book with us online or feel free to give us a call today.

"Quick and simple service. No complaints here. Thanks for the help."

Joseph N on March 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade, and will do our best to keep you as educated as we can on your particular task or project. We look forward to earing your business! Book with us online or feel free to give us a call today.

"Quick and simple service. No complaints here. Thanks for the help."

Joseph N on March 2025


Avatar for Mr. Rooter Plumbing of Columbus
Mr. Rooter Plumbing of Columbus
405 N Brice Rd
4.45(
401
)
Approved Pro
Mr. Rooter Plumbing of Columbus
405 N Brice Rd
4.45(
401
)
Approved Pro
Customers say: Quick response
1639 local quotes requested
31 years of experience

At Mr. Rooter Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs day or night with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub drain cleaning or trenchless pipe repair, with courteous smiles on our faces.

"This is going to be a bit long, but the situation warrants it. On Saturday, April 28th, I went into our basement and discovered the sewer backing up through our floor drain. I have never had to call a plumber before and clearly didn’t have time to research so I called the plumber closest to our home: Mr. Rooter. They said someone would be there within the hour and, mostly on time, someone showed up after an hour and a few minutes. Aaron H. was odd and bit off-putting but, whatever; there was poop in my basement. Aaron got his camera out and fairly quickly discovered that the previous owners (we’ve been there less than a year) had been flushing SOMETHING they shouldn’t have. My theory is Depends, but that’s a story for a different day. He says that he can’t push the clog through and we’ll have to schedule a different tech to come out with a different machine to blast it with high pressure water for $1000. Obviously, this wasn’t good news but so far, so good on the company’s part. Aaron gets a new cap for our pipe out of his truck and discovers that the new one doesn’t fit because the rim of the old had sort of rusted to the pipe and was stuck in there. He asked my husband for a hammer and chisel …what? That alarmed me slightly but I decided to remove myself from the situation because I’m not always the kindest under stress. I don’t know if my husband ended up giving him the tools or if he got something from his truck, but Aaron removed the stuck piece and let my husband know we were good to go. My husband went downstairs to check things out and … there was a hole in our pipe. It wasn’t leaking before, so it wasn’t there before, and it was right near the opening that Aaron had just been hacking away at, yet Aaron hemmed and hawed and didn’t want to take responsibility. First, he said that there was no way we could know that hole wasn’t there before (ummm … we had been down there all afternoon, staring at this pipe), then he said that when pipes get rusty, they get holes (right, but you slamming away it probably didn’t help). Aaron eventually offered up his boss’s cell number but was very nonchalant about the whole thing. Aaron left and my husband immediately called Mark, Aaron’s boss and the owner of this branch. Mark was a little wishy washy and uncaring too, but we tried to give him the benefit of the doubt; it was Saturday evening, he was home with his kids, and this wasn’t a call he wanted to get. Mark said he would come to our house on Monday, April 30th, which he did. Long story short on that end, Mark agreed to send someone out to fix the pipe and do their best to push the clog along without the water hose, mostly because they were going to have to cut into our drywall to get the machine into the basement. We set up our appointment for Wednesday, May 2nd, between 4p and 6p. At 5.30p, on May 2nd, we got a call that they were a bit behind but would be onsite within the hour. A little after 6.30p, I got a call that they were still behind but this time, they would DEFINITELY be onsite within the hour. Around 7.45p, I called to find out what was actually going on and they said the same thing: we’ll be there within the hour. At this point, I couldn’t wait until 9p for a plumber to show up (if they planned on showing up at all), so I rescheduled for Thursday, May 3rd. The first thing the tech, Nick, said on May 3rd was, “I’ve tried to get a hold of Mark a bunch of times, but he never answered or got back to me”. GREAT. I don’t know much about plumbing, but Mark had promised our pipe would be replaced with a Y pipe; Nick had not been told this and Nick would not do this. He went to the store and got whatever part he needed (shouldn’t that have been in his truck?) and got to work. He was able to push the clog through fairly easily, which I really appreciate, but also think is TOTAL bull, considering the THOUSAND DOLLAR LINE Aaron tried to feed us. He was also able to quickly replace our holey pipe with a new pipe, that was still not what we were promised by Mark. All in all, this was an already unfortunate circumstance, which we didn’t bring on ourselves, that was just exacerbated by Mr. Rooter. As much as I would like to give them big hurrahs for fixing our pipe, they broke it. And as grateful as I’d like to be that they could push the clog through without ripping a hole in our wall and charging us a thousand dollars, that was apparently a totally legit, normal, easy action that should have been done five days prior. 0/10, would not hire again."

Tiahna W on May 2018

At Mr. Rooter Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs day or night with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub drain cleaning or trenchless pipe repair, with courteous smiles on our faces.

"This is going to be a bit long, but the situation warrants it. On Saturday, April 28th, I went into our basement and discovered the sewer backing up through our floor drain. I have never had to call a plumber before and clearly didn’t have time to research so I called the plumber closest to our home: Mr. Rooter. They said someone would be there within the hour and, mostly on time, someone showed up after an hour and a few minutes. Aaron H. was odd and bit off-putting but, whatever; there was poop in my basement. Aaron got his camera out and fairly quickly discovered that the previous owners (we’ve been there less than a year) had been flushing SOMETHING they shouldn’t have. My theory is Depends, but that’s a story for a different day. He says that he can’t push the clog through and we’ll have to schedule a different tech to come out with a different machine to blast it with high pressure water for $1000. Obviously, this wasn’t good news but so far, so good on the company’s part. Aaron gets a new cap for our pipe out of his truck and discovers that the new one doesn’t fit because the rim of the old had sort of rusted to the pipe and was stuck in there. He asked my husband for a hammer and chisel …what? That alarmed me slightly but I decided to remove myself from the situation because I’m not always the kindest under stress. I don’t know if my husband ended up giving him the tools or if he got something from his truck, but Aaron removed the stuck piece and let my husband know we were good to go. My husband went downstairs to check things out and … there was a hole in our pipe. It wasn’t leaking before, so it wasn’t there before, and it was right near the opening that Aaron had just been hacking away at, yet Aaron hemmed and hawed and didn’t want to take responsibility. First, he said that there was no way we could know that hole wasn’t there before (ummm … we had been down there all afternoon, staring at this pipe), then he said that when pipes get rusty, they get holes (right, but you slamming away it probably didn’t help). Aaron eventually offered up his boss’s cell number but was very nonchalant about the whole thing. Aaron left and my husband immediately called Mark, Aaron’s boss and the owner of this branch. Mark was a little wishy washy and uncaring too, but we tried to give him the benefit of the doubt; it was Saturday evening, he was home with his kids, and this wasn’t a call he wanted to get. Mark said he would come to our house on Monday, April 30th, which he did. Long story short on that end, Mark agreed to send someone out to fix the pipe and do their best to push the clog along without the water hose, mostly because they were going to have to cut into our drywall to get the machine into the basement. We set up our appointment for Wednesday, May 2nd, between 4p and 6p. At 5.30p, on May 2nd, we got a call that they were a bit behind but would be onsite within the hour. A little after 6.30p, I got a call that they were still behind but this time, they would DEFINITELY be onsite within the hour. Around 7.45p, I called to find out what was actually going on and they said the same thing: we’ll be there within the hour. At this point, I couldn’t wait until 9p for a plumber to show up (if they planned on showing up at all), so I rescheduled for Thursday, May 3rd. The first thing the tech, Nick, said on May 3rd was, “I’ve tried to get a hold of Mark a bunch of times, but he never answered or got back to me”. GREAT. I don’t know much about plumbing, but Mark had promised our pipe would be replaced with a Y pipe; Nick had not been told this and Nick would not do this. He went to the store and got whatever part he needed (shouldn’t that have been in his truck?) and got to work. He was able to push the clog through fairly easily, which I really appreciate, but also think is TOTAL bull, considering the THOUSAND DOLLAR LINE Aaron tried to feed us. He was also able to quickly replace our holey pipe with a new pipe, that was still not what we were promised by Mark. All in all, this was an already unfortunate circumstance, which we didn’t bring on ourselves, that was just exacerbated by Mr. Rooter. As much as I would like to give them big hurrahs for fixing our pipe, they broke it. And as grateful as I’d like to be that they could push the clog through without ripping a hole in our wall and charging us a thousand dollars, that was apparently a totally legit, normal, easy action that should have been done five days prior. 0/10, would not hire again."

Tiahna W on May 2018


Avatar for MBR Co., LLC
MBR Co., LLC
14886 Empire Rd.
5.00(
8
)
Approved Pro
MBR Co., LLC
14886 Empire Rd.
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
598 local quotes requested

We have the experience and dedication to get the job done right! Specializing in Excavating services; We guarantee your satisfaction, and we won't leave until the job is done. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"They knew what they were doing"

Eric T on January 2025

We have the experience and dedication to get the job done right! Specializing in Excavating services; We guarantee your satisfaction, and we won't leave until the job is done. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"They knew what they were doing"

Eric T on January 2025


Avatar for Safe Electric and Plumbing
Safe Electric and Plumbing
6635 Singletree Dr.
4.68(
34
)
Approved Pro
Safe Electric and Plumbing
6635 Singletree Dr.
4.68(
34
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
2303 local quotes requested

Safe Electric is the Columbus electrician your friends and neighbors trust. Since 1994, we have been a leading electrician who provides the highest level of safety and quality workmanship to the residents of central Ohio. You can count on our Columbus electricians for all your service needs. We can equip your home so you get all the best features with all the latest tech available from home automation, security, media systems, and connected smart home devices. For anything from replacing light fixtures to re-wiring your entire Columbus home, our electricians at Safe Electric have you covered.

"Nice people. Efficient. Really liked the crew. Willing to be flexible on the assignment."

Andrew H on June 2025

Safe Electric is the Columbus electrician your friends and neighbors trust. Since 1994, we have been a leading electrician who provides the highest level of safety and quality workmanship to the residents of central Ohio. You can count on our Columbus electricians for all your service needs. We can equip your home so you get all the best features with all the latest tech available from home automation, security, media systems, and connected smart home devices. For anything from replacing light fixtures to re-wiring your entire Columbus home, our electricians at Safe Electric have you covered.

"Nice people. Efficient. Really liked the crew. Willing to be flexible on the assignment."

Andrew H on June 2025


Avatar for E&B Wooley Inc
E&B Wooley Inc
4699 Carroll Cemetery Rd
4.50(
16
)
Approved Pro
E&B Wooley Inc
4699 Carroll Cemetery Rd
4.50(
16
)
Approved Pro
Customers say: Terrific value
103 local quotes requested
48 years of experience

We specialize in exterior sewer drains,waterline replacements and camera service.

"Heath is extremely professional. He and his team did a great job!"

Price F on May 2025

We specialize in exterior sewer drains,waterline replacements and camera service.

"Heath is extremely professional. He and his team did a great job!"

Price F on May 2025


Avatar for KWIK KITCHENS
KWIK KITCHENS
PO Box 360512
5.00(
5
)
Approved Pro
KWIK KITCHENS
PO Box 360512
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
771 local quotes requested

Kwik Kitchens is a family owned company providing kitchen remodeling services to the greater Columbus area for more than 20 years. We have installed hundreds of kitchens for homeowners, apartment complexes and investors. Our functional layouts, cabinet and countertop options, competitive prices and easy, streamlined installation process result in beautiful kitchens and many happy customers.

"I wrote a lengthy review of Kwik Kitchens, but don't see it posted to my account."

Rhonda D on June 2024

Kwik Kitchens is a family owned company providing kitchen remodeling services to the greater Columbus area for more than 20 years. We have installed hundreds of kitchens for homeowners, apartment complexes and investors. Our functional layouts, cabinet and countertop options, competitive prices and easy, streamlined installation process result in beautiful kitchens and many happy customers.

"I wrote a lengthy review of Kwik Kitchens, but don't see it posted to my account."

Rhonda D on June 2024


Avatar for John Peters Plumbing & Heating
John Peters Plumbing & Heating
29064 Enterprise Iles Rd
4.58(
19
)
Approved Pro
John Peters Plumbing & Heating
29064 Enterprise Iles Rd
4.58(
19
)
Approved Pro
Customers say: Quick response
125 local quotes requested
47 years of experience

Homeowners and businesses in Logan, Ohio, and throughout Greater Fairfield County rely on the trusted service of John Peters Plumbing and Heating. Family-owned since 1978, John Peters Plumbing and Heating provides same-day response, uniformed personnel, and 24-hour emergency service for all residential customers and commercial businesses. Our employees are fully insured, and we use cell phone dispatched trucks to get to your needs as quickly as possible. We proudly serve customers throughout Logan, Ohio, and all of Greater Fairfield County.

"The service was great, it was excellent, he's always on time and efficient. It was John who actually comes to do do the work himself."

TERRY P on June 2021

Homeowners and businesses in Logan, Ohio, and throughout Greater Fairfield County rely on the trusted service of John Peters Plumbing and Heating. Family-owned since 1978, John Peters Plumbing and Heating provides same-day response, uniformed personnel, and 24-hour emergency service for all residential customers and commercial businesses. Our employees are fully insured, and we use cell phone dispatched trucks to get to your needs as quickly as possible. We proudly serve customers throughout Logan, Ohio, and all of Greater Fairfield County.

"The service was great, it was excellent, he's always on time and efficient. It was John who actually comes to do do the work himself."

TERRY P on June 2021

...
Showing 1-10 of 962

FAQs for tankless water heater installation projects in Lancaster, OH

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.