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

Avatar for S&S Piping and Heat LLC
S&S Piping and Heat LLC
5.0(
66
)
Tankless Water Heater - Repair

Serving Belmont, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Neo was excellent! My water heater went and a new one was installed by Neo and his team the next day. They were very professional, communicated instantly, and did a fantastic job. Will definitely use S.S Piping n Heat for all of my future plumbing and heating needs. Would recommend this company to anyone!"
Metro Construction Design
Metro Construction Design
Metro Construction Design
Metro Construction Design
Metro Construction Design

+53

Response time1 day
Response rate100%
11 neighbors recently requested a quote
Avatar for Mouradian Plumbing & Heating
Mouradian Plumbing & Heating
4.7(
19
)
Tankless Water Heater - Repair

Serving Belmont, MA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Highly satisfied AGAIN in a second job with Mouradian (hot water heater earlier). This time was a replacement of leaking cast iron sink waste pipe imbedded in the wall/floor between two condo unit bathrooms. Eric Mouradian is very no-nonsense, fast in his estimates, and reasonable in his pricing. The plumber who did the job, Rich, was excellent: friendly, efficient, and clear about what was going on. He understood immediately that his first instinct, to open up the ceiling and wall of the downstairs bathroom should be avoided if possible, to limit wall repairs to one bathroom instead of two. And he then quickly figured out how to do it and did it. The cost was considerably less than the quote of a competitor, who misdiagnosed the problem at first, refused to put his quote in writing, and showed no interest in keeping wall damage to a minimum. No comparison."
Response time1 day
Recommended by100%of homeowners
Avatar for Gentille Plumbing and Heating
Gentille Plumbing and Heating
5.0(
28
)
Tankless Water Heater - Repair

Serving Belmont, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"This was a relatively small water heater repair, and Ryan did an outstanding job. He responded immediately to my request, provided a reasonable quote, was polite, professional, knowledgable, and friendly to deal with. Will definitely hire again if needed."
Response time6 hrs
Response rate96%
23 neighbors recently requested a quote
Avatar for Genove Oil & Air Co
Genove Oil & Air Co
4.7(
217
)
Tankless Water Heater - Repair

Serving Belmont, MA and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"We have been loyal customers of Genove for years, but this year they exceeded any expectations. From the emergency service call on a cold Sunday night in February to the installation of the new furnace and hot water heater today. Armando and crew are terrific. Ryan, Richie and Shawn completed the project in less time than we expected. And, Armando assisted us in the HEAT loan program which has us paying for this work at zero interest over 7 years as well as handled the rebate programs. Highly recommend Genove!"
Additional Photos
Additional Photos
Additional Photos
Pics
Pics

+2

Response time12 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for Local Plumbing & Heating
Local Plumbing & Heating
5.0(
12
)
Tankless Water Heater - Repair

Serving Belmont, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"This is my sixth time using the service from Andrew at Local Plumbing and Heating. He is quickly available, efficient and thoughtful. He is trustworthy: I know he will take care of everything I asked for and thinking ahead for great ideas. I used his service for major home projects and I strongly recommend him for everything: from water heater tank replacement to gas lines installations."
Plumbing Project
Plumbing Project
Plumbing Project
Additional Photos
Additional Photos

+14

1 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,404
)
Tankless Water Heater - Repair

Serving Belmont, MA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Live Your Most Comfortable Life with a Company You Trust. \nWe offer Same Day Service and Next Day Installation! \n \nSila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it?s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe ? season after season. \nWe guarantee satisfaction and are proud to have earned over 7,000 ?A? ratings on Angie?s List and its prestigious Super Service Award!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

115 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Heavy Doody Plumbing & Heating
Heavy Doody Plumbing & Heating
4.9(
22
)
Tankless Water Heater - Repair

Serving Belmont, MA and surrounding areas

Approved

In business since 2013

Emergency services offered

Small jobs welcome

"Heavy Doody did a wonderful job installing our new shower valve and were very knowledgable about the most cost effective solution. We highly recommend them!"
back flow  for sprinkler sytym
2nd meter install
finish
finish
finish

+26

Response time4 hrs
6 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Johnny Rocket Plumbing & Heating
Johnny Rocket Plumbing & Heating
5.0(
8
)
Tankless Water Heater - Repair

Serving Belmont, MA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"John from Johnny Rocket Plumbing and Heating did an excellent job installing our water heater. The work was clean, efficient, and done right the first time. He explained everything clearly, showed up on time, and left the space spotless. I fully trust his work and would recommend him to anyone looking for a reliable plumber. Thank you!"
My jobs
My jobs
My jobs
My jobs
My jobs

+10

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