Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros in California, KY

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.

Top-Rated Tankless water heater repair pros in California - Updated Nov 2026

Avatar for Rapid Pro Plumbing
Rapid Pro Plumbing
5.0(
12
)
Tankless Water Heater - Repair

Serving California, KY and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

"⭐⭐⭐⭐⭐ Great experience from start to finish! They did an excellent job replacing our water heater. They were professional, knowledgeable, and made sure everything was installed correctly. The work was completed efficiently, and they left everything clean when they were finished. We’re very pleased with the service and would definitely recommend them to anyone needing a water heater replacement or plumbing work!"
Tankless water heater
Tankless water heater
Bathroom remodel
Sink and new faucet
High pressure water main

+1

6 neighbors recently requested a quote
Avatar for Arlinghaus Plumbing Heating Air Conditioning & Electrical of Erlanger
Arlinghaus Plumbing Heating Air Conditioning & Electrical of Erlanger
4.1(
34
)
Tankless Water Heater - Repair

Serving California, KY and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

Arlinghaus Plumbing, Heating, Air Conditioning & Electrical is a family-owned business & your trusted expert for AC repair, AC installation, AC tune-ups, heating, plumbing, and electrical services across NKY, Cincinnati & SE Indiana – including Erlanger, Florence, Covington, Newport, Burlington, Independence, Bellevue, Crescent Springs, Union, Fort Thomas, Highland Heights, Cold Spring & Alexandria. Our team delivers fast, reliable service to keep your home comfortable all year. We also handle drain cleaning, sewer services, water heaters, & 24/7 emergency plumbing. Licensed, insured technicians with over 6,000 5-star reviews. Same-day service, upfront pricing, & a 100% satisfaction guarantee. Call today for expert HVAC and plumbing service.

COMMUNITY
COMMUNITY
COMMUNITY
COMMUNITY
COMMUNITY

+56

7 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Benjamin Franklin Plumbing - Cincinnati
Benjamin Franklin Plumbing - Cincinnati
3.9(
337
)
Tankless Water Heater - Repair

Serving California, KY and surrounding areas

Approved (Corporate)

In business since 2006

Emergency services offered

Warranties offered

"Water heater pressure relief tanked failed christmas eve. We supplied the part from Home Depot and were up and running in about an hour after first contact with BF. Generally, this is an easy repair that could be DIY, but we were glad to have it done quickly and correctly on Christmas Eve."
BBB
Your Local Plumbers!
Available 24/7!
We Can Handle Your Water Heaters Problems!
70 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Dauenhauer Plumbing
Dauenhauer Plumbing
4.4(
103
)
Tankless Water Heater - Repair

Serving California, KY and surrounding areas

Approved (Corporate)

In business since 1976

Free estimates

Credit card accepted

Respectful. Reliable. Service Reimagined. \nWe are the leading plumbing contractor in Kentucky. Our licensed plumbers serve residential and commercial clients in Louisville and Lexington. Our construction department is among the largest in the state. \n \nWe give each customer and project, regardless of size and cost, the same quality plumbing services while working within the customer's budget. We stand behind our workmanship long after the project is complete. \nOur people are what make the difference. Here's what you can expect from your Dauenhauer service technician: \n \nHighly skilled and trained to solve any problem \nHas passed extensive background checks and regular drug testing \nIdentifiable and proud to represent Dauenhauer \nProfessional and neatly uniformed \nDrives a Dauenhauer service vehicle equipped with a multitude of parts and tools \nWears shoe covers inside your home out of respect

22 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Joe Lay & Sons Plumbing
Joe Lay & Sons Plumbing
4.4(
23
)
Tankless Water Heater - Repair

Serving California, KY and surrounding areas

Approved

In business since 1970

Free estimates

Warranties offered

"We needed to check our water heater for leaks prior to closing the sale of our house.Joe Lay were out installing a new water heater and expansion tank the next day. The technician explained how all the components were supposed to work before checking everything so we both knew we needed a new tank as well. Outstanding, professional company. Billy was very respectful, knowledgeable and professional the entire time in our home. We would highly recommend Joe Lay and Sons for any plumbing needs."
121 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for Flow Rite Plumbing
Flow Rite Plumbing
4.7(
711
)
Tankless Water Heater - Repair

Serving California, KY and surrounding areas

In business since 1997

Credit card accepted

"After a recent problem with our gas line, our utility company mentioned that we needed to install sediment traps on our older hot water heater and our furnace. We called Flow-Rite for this, and they did the job quickly and well, as well as answering any questions that we had. We'll definitely be using them for larger jobs in the future.
"
Finished product
bathroom demolition 1
bathroom demolition 2
Finish product
Picture with light on

+6

Recommended by94%of homeowners
Avatar for Plumb Tech Services
Plumb Tech Services
4.7(
46
)
Tankless Water Heater - Repair

Serving California, KY and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Whoever Nick sends to work at our house has always figured out what needed doing (and not more) and been able to get it done quickly, surely and cleanly. In this case we had just at our water main changed which cause sediment to clog fixtures and kill water pressure. Chris gave us the good news that a replacement fixture and part was all that stood between us and square one----and he fit us in the next day so that we could go out and buy the kitchen faucet we needed."
Recommended by97%of homeowners
GreenForce USA LLC
4.8(
28
)
Tankless Water Heater - Repair

Serving California, KY and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"My wife and I attended a presentation by James Manfield, the owner of GreenForce.  We were impressed with company product and Jame's punctuality, professionalism and honesty.  We decided to hire his company to add insulation to attic of my in-laws house.  The installers came on time and over 9 hours managed to complete 95% of the job.  The installers were polite, professional and clean.  The subsequent installers came next day and completed the job.  We are very pleased with James and the service provided by his company. As FYI, we had similar radiant barrier installed by another company in our own house in 2012 and we were pleased with the reduction in heating and cooling cost."
Recommended by96%of homeowners
Avatar for Fayette Heating & Air || H20 Maestro
Fayette Heating & Air || H20 Maestro
4.1(
175
)
Tankless Water Heater - Repair

Serving California, KY and surrounding areas

In business since 1971

Free estimates

Emergency services offered

"We've used them for years and have always had fabulous service in the past.  This time when we called them out the first guy that came out told it was a very expensive part that went out and we needed to purchase a whole new system.  I told him we need to rethink that because we just bought the system from them within the past year. Then he came back and said well maybe it's this, this and this.  So he ended up replacing the fan.  It went out the next day.  So they sent another guy out.  Turned out it wasn't the fan either.  It was from where our mowers had blown grass into the outside unit and all the coils needed to be cleaned.  So we paid $600 for a fan we very well may not have needed.  Then we have to pay an additional $400 for the coils to be cleaned. We actually had to pay two service call fees.  We shouldn't have had to pay those, but we did. I would possibly use them again. If the other company we use isn't available."
Recommended by82%of homeowners
Showing 1-10 of 36