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Top-Rated Tankless water heater repair pros in Boston - 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 Boston, 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%
9 neighbors recently requested a quote
Avatar for Gentille Plumbing and Heating
Gentille Plumbing and Heating
5.0(
28
)
Tankless Water Heater - Repair

Serving Boston, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"My grandson flushed his little yellow bus down the toilet Friday afternoon. I called several plumbers in the area. By late Saturday afternoon I had only 1 returned call saying they could come out Monday morning. A friend suggested I call Gentille Plumbing and Heating. I called them and they said they could come early Sunday morning. Ryan arrived promptly as promise and quickly determine how to approach the issue and retrieved the little yellow bus. Cleanup was quick and pricing fair. Ryan was professional , friendly and was on his way within 45 minutes of arrival. Thank You Gentille Plumbing and Heating"
Response time6 hrs
Response rate96%
25 neighbors recently requested a quote
Avatar for Genove Oil & Air Co
Genove Oil & Air Co
4.7(
217
)
Tankless Water Heater - Repair

Serving Boston, MA and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"Excellent. The serviceman arrived on time, was knowledgable. He explained what he was doing. He went right to work and completed his work in an appropriate amount of time. Very pleased with their work. Already set up an appointment for the fall heater tuneup!"
Additional Photos
Additional Photos
Additional Photos
Pics
Pics

+2

Response time12 hrs
Response rate100%
12 neighbors recently requested a quote
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,404
)
Tankless Water Heater - Repair

Serving Boston, 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

66 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Boston Plumbing - Heating Solutions
Boston Plumbing - Heating Solutions
4.9(
27
)
Tankless Water Heater - Repair

Serving Boston, MA and surrounding areas

Approved

In business since 2025

Free estimates

""Henry responded immediately to my repair request for two tenant apartments. He offered to come out the same day, but when that did not work for the tenants, he arrived early the next morning at a convenient time for everyone. He efficiently repaired the showers and toilets. He also checked a few other areas and gave helpful recommendations for future maintenance. His pricing was very fair. He provided a clear written invoice and even gave a written assessment for potential furnace repairs/replacement. I am very satisfied with his work and highly recommend him.""
Boiler installation
Boiler installation
Boiler installation
Boiler installation
8 neighbors recently requested a quote
Avatar for Johnny Rocket Plumbing & Heating
Johnny Rocket Plumbing & Heating
5.0(
8
)
Tankless Water Heater - Repair

Serving Boston, MA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"John “Johnny Rocket” & his associate did an amazing job servicing my home in Winchester. From the moment they walked through the door, they exuded a friendly, knowledgeable and professional manner. They were quick to diagnose the issue in my heating system & worked efficiently to fix the issue on the spot. The entire job was complete in under an hour. I needed a new thermostat & John installed one on the spot as well! I highly recommend hiring these two gentleman for any of your plumbing & heating needs. After the job was complete, they even took the time to talk my son & I about how they enjoyed helping residents in the local Winchester Community. (They are both former Winchester High School graduates.) I would give Johnny Rocket 10 stars ⭐️ if I could. Look No Further! -Emily (Long time Winchester Resident)"
My jobs
My jobs
My jobs
My jobs
My jobs

+10

Avatar for ER Services Plumbing and Heating
ER Services Plumbing and Heating
3.9(
24
)
Tankless Water Heater - Repair

Serving Boston, MA and surrounding areas

Approved

In business since 2023

Emergency services offered

Warranties offered

"The young technicians who came to my home to installed the new thermostat and move it to another wall in my home were polite and conducted themselves professionally in my home and cleaned after themselves. I very appreciated Uri suggestion when he recommended to me another alternative at the initial visit and gave me a few quotes to choose from. So I'm very happy with ER service and I would rehired these two individuals back to my home. I will definitely recommend ER to other people in my life."
Gas Lines for Commercial Building
Commercial Kitchen Faucet
Bathroom Finish
Boiler Installation
Shower Stall Finish

+21

Response time6 hrs
329 neighbors recently requested a quote
Recommended by9%of homeowners
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