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 London

Avatar for Doctor Rooter Plumbing
Doctor Rooter Plumbing
223 Patsy Ln
5.00(
12
)
Approved Pro
Doctor Rooter Plumbing
223 Patsy Ln
5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
66 local quotes requested

Welcome to Doctor Rooter Plumbing, a family-owned and operated business! In business since 2022, we bring over ten years of experience to the plumbing industry. We can help with all your plumbing needs, no job is too big or too small! Serving Berea, Richmond, Lexington, and surrounding areas, give us a call today!

"They were excellent. They did a fantastic job. They cleaned everything up after they got through and took everything with, so it was exceptional."

Brenda M on April 2025

Welcome to Doctor Rooter Plumbing, a family-owned and operated business! In business since 2022, we bring over ten years of experience to the plumbing industry. We can help with all your plumbing needs, no job is too big or too small! Serving Berea, Richmond, Lexington, and surrounding areas, give us a call today!

"They were excellent. They did a fantastic job. They cleaned everything up after they got through and took everything with, so it was exceptional."

Brenda M on April 2025


Avatar for Shaw Sewer & Drain Service LLC
Shaw Sewer & Drain Service LLC
1204 Woodchuck Dr Apt #4
5.00(
10
)
Approved Pro
Shaw Sewer & Drain Service LLC
1204 Woodchuck Dr Apt #4
5.00(
10
)
Approved Pro
Customers say: Quick response
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. Call us today!

"Cody was great! Very respectful & replaced my kitchen & bathroom faucets. I will definitely call him again for any plumbing needs!"

Janet W 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. Call us today!

"Cody was great! Very respectful & replaced my kitchen & bathroom faucets. I will definitely call him again for any plumbing needs!"

Janet W on May 2025


Avatar for Clog Busterz
Clog Busterz
105 Moberly Rd
4.27(
37
)
Approved Pro
Clog Busterz
105 Moberly Rd
4.27(
37
)
Approved Pro
Super Service Award
Customers say: Super punctual
490 local quotes requested
9 years of experience

We offer free estimates and free home inspections with any purchase of service. We are much more than your average drain cleaning 'clog busting' plumbers. We are a small, home town based company. We care about what’s best for your household and business plumbing needs. We provide outstanding plumbing services (water heaters, faucet rebuilds, garbage disposal, main water/plumbing lines) without breaking the bank. Give us a call today today.

"Josh was very professional, informative and prompt. This company was quick to respond with competitive pricing. Highly recommend and will be using again when needed."

Debbie J on September 2024

We offer free estimates and free home inspections with any purchase of service. We are much more than your average drain cleaning 'clog busting' plumbers. We are a small, home town based company. We care about what’s best for your household and business plumbing needs. We provide outstanding plumbing services (water heaters, faucet rebuilds, garbage disposal, main water/plumbing lines) without breaking the bank. Give us a call today today.

"Josh was very professional, informative and prompt. This company was quick to respond with competitive pricing. Highly recommend and will be using again when needed."

Debbie J on September 2024


Avatar for C&K home improvements
C&K home improvements
2075 ByPass Road
New on HomeAdvisorNew on Angi
Approved Pro
C&K home improvements
2075 ByPass Road
New on AngiNew on HomeAdvisor
Approved Pro
3 years of experience
Free onsite estimate

Here at C&K Home Improvements we do all interior and exterior work. We like to build a bond with our customers and create a fun and trustworthy relationship. Give us a call and let us help you get your next project started!

Here at C&K Home Improvements we do all interior and exterior work. We like to build a bond with our customers and create a fun and trustworthy relationship. Give us a call and let us help you get your next project started!


Avatar for Neli Virtual Appliance Repair
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Customers say: Super punctual
54336 local quotes requested
9 years of experience

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"They did fine"

Keavon R on May 2025

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"They did fine"

Keavon R on May 2025


Mercer Rooter
2901 Louisville Rd
No reviews
Mercer Rooter
2901 Louisville Rd
No reviews

Roney's Plumbing Inc.
516 Monticello St
4.25(
16
)
Roney's Plumbing Inc.
516 Monticello St
4.25(
16
)
Customers say: Quick response
20 years of experience

We are a small, family run business. We have been is business for over 8 years. We employ approximately 10 to 12 employees. We are fully licensed and insured, member of the BBB.

"They answered the phone and they gave me a next day appointment. I called 20 plumbers in the surrounding area, none could get me a same day or next day appointment. Our water was turned off due to a leak and Roney’s Plumbing was the only one to give me an appointment. They called before coming and arrived when expected. They found the problem quickly. Not sure of the price yet. They said they would send a bill."

Sandy J on December 2018

We are a small, family run business. We have been is business for over 8 years. We employ approximately 10 to 12 employees. We are fully licensed and insured, member of the BBB.

"They answered the phone and they gave me a next day appointment. I called 20 plumbers in the surrounding area, none could get me a same day or next day appointment. Our water was turned off due to a leak and Roney’s Plumbing was the only one to give me an appointment. They called before coming and arrived when expected. They found the problem quickly. Not sure of the price yet. They said they would send a bill."

Sandy J on December 2018


WORKMAN CONSTRUCTION
113 SWEETBRIAR CIR
1.00(
1
)
WORKMAN CONSTRUCTION
113 SWEETBRIAR CIR
1.00(
1
)

I started Workman Construction LLC in 2010 to provide to the community affordable and quality driven general construction and contractor services. We are big enough to build your home or home renovation, yet small enough to provide quality handyman services. We are fully insured, licensed and a Building Member of Southeastern Kentucky Home Builders Association. Thank you for the opportunity to work with you on your project! Tony, owner of Workman Constuction LLC

I started Workman Construction LLC in 2010 to provide to the community affordable and quality driven general construction and contractor services. We are big enough to build your home or home renovation, yet small enough to provide quality handyman services. We are fully insured, licensed and a Building Member of Southeastern Kentucky Home Builders Association. Thank you for the opportunity to work with you on your project! Tony, owner of Workman Constuction LLC


Dreamremodelers
475Ronclar Dr
No reviews
Dreamremodelers
475Ronclar Dr
No reviews
45 years of experience

We are a full service remodelingcompany. Weather you need a bath remodel or an addition .we have over 40 years in the construction trades All bids are free and we give great advise

We are a full service remodelingcompany. Weather you need a bath remodel or an addition .we have over 40 years in the construction trades All bids are free and we give great advise


Krell Distributing Co Inc
211 Herald Place
No reviews
Krell Distributing Co Inc
211 Herald Place
No reviews
53 years of experience

Additional DBA - Krell Industries. Family owned & operated. Nationwide service.

Additional DBA - Krell Industries. Family owned & operated. Nationwide service.

...
Showing 1-10 of 215

Tankless water heater installations FAQs

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.