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

Avatar for Gentille Plumbing and Heating
Gentille Plumbing and Heating
5.0(
28
)
Tankless Water Heater - Repair

Serving South-weymouth, 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%
25 neighbors recently requested a quote
Avatar for H L Bowman
H L Bowman
4.6(
430
)
Tankless Water Heater - Repair

Serving South-weymouth, MA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"They were very fast to respond to my call and were able to send someone within two hours. The replacement of the hot water heater went well. For the water pipes they use copper crimp fittings instead of soldering so it will be interesting to see how that holds up over the years. My only concern is how they ran the gas line. They use Gastite CSST which is fine, but the CSST is run so it goes downward then back up and then downward again before it enters black pipe that has a moisture trap. It seems to me that if there is any moisture it will end up in the CSST instead of the trap. In addition, there is a pretty good bend in the CSST right before it goes into the trap section. Also, Teflon tape was used on the all the joints instead of joint compound. I think I will get someone from a different company to come in and take a look at it."
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+6

474 neighbors recently requested a quote
Recommended by86%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 South-weymouth, 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!

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+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 South-weymouth, 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 Quarry Hills Plumbing & HVAC, Inc.
Quarry Hills Plumbing & HVAC, Inc.
4.2(
224
)
Tankless Water Heater - Repair

Serving South-weymouth, MA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Our gas water heater failed on a Friday night. Waking up Saturday a.m. to water in our basement wasn't a pleasant experience. We placed several calls and Quarry Hills was the only company to return our call. Michelle was very helpful with locating the same water heater within a short time frame as the gas heater that failed was still under warranty, to our surprise. She promptly scheduled a tech to our house by 1 p.m. the same day with the new water heater in tow. Seth was very knowledgeable and worked efficiently to get us back up and running. They were straight up with the cost and didn't exceed it when finished with the job. Rebecca followed up with a call to check in on our experience with Quarry and confirmed that they'd forward any warranty information upon receipt. Very professional from start to finish! We won't hesitate using them again for any future issues we may have."
Bryant Evolution High Efficiency Gas Furnace
Bryant Evolution 17-SEER 2-Stage Condensing Unit
Noritz NRC-111-DV Natural Gas Tankless Water Heater
Lochinvar Knight WHN-110 and Squire SIT-040 in Sherborn, MA
Lochinvar Knight WHN-110 and Squire 40-gallon indirect in Milton, MA

+4

6 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Whalen Plumbing & Heating
Whalen Plumbing & Heating
4.7(
15
)
Tankless Water Heater - Repair

Serving South-weymouth, MA and surrounding areas

Approved

In business since 2020

Credit card accepted

Offers commercial services

"Can't say enough good things about Whalen Plumbing and Heating. Our tankless water heater was giving us inconsistent temperatures and error codes, and they made the fix painless. They showed up on time, asked what we'd noticed before touching anything, and clearly know these units inside and out. They flushed and descaled the heat exchanger, cleaned the inlet filter, and checked the venting and connections, explaining everything in plain English with no pressure to upsell. They were respectful of our home and left the area cleaner than they found it. Pricing was fair and matched the quote exactly. Since the visit, our hot water has been steady and the unit runs quieter than it has in a long time."
Soaking Tub
Tankless Heater
Response time2 days
12 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Minuteman, LLC
Minuteman, LLC
4.9(
11
)
Tankless Water Heater - Repair

Serving South-weymouth, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Matt and Aaron did a great job.Called at nine in the morning for a hot water heater replacement.They were at my house by eleven to assess the job.We went over the cost to replace it and came up with a very fair price.The job was completed by two o'clock.Excellent work.Clean and professional.Will recommend Minuteman to family and friends.Thank you very much Matt and Aaron."
New Rheem 40-gal Power Vent Water Heater
New 3/4" ball valve
New 3/4" copper pipe
New water heater
New hot water pipe

+5

Response time2 hrs
Response rate95%
Recommended by54%of homeowners
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