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Top-Rated Tankless water heater repair pros in Milton - 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 Milton, 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 Gentille Plumbing and Heating
Gentille Plumbing and Heating
5.0(
28
)
Tankless Water Heater - Repair

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

Serving Milton, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

459 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 Milton, 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

67 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Comfort Professor
Comfort Professor
5.0(
24
)
Tankless Water Heater - Repair

Serving Milton, MA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"A different company gave us a quote for $500 to clean the condenser and $2500 to recharge it to check for leaks, so we were dragging our feet. I decided to get another opinion and found Comfort Doctor. They were incredibly responsive and came the next morning. They cleaned the unit for $65 and recharged the unit right then and there with 1 lb of refrigerant. Now it is working great for ~$300. The technician gave us recommendations as if it were his own home and said the quick and inexpensive fix is where you should start. We might not need to do the more expensive leak-check at all unless the system continues to leak substantially."
10 neighbors recently requested a quote
Avatar for Boston Plumbing - Heating Solutions
Boston Plumbing - Heating Solutions
4.9(
29
)
Tankless Water Heater - Repair

Serving Milton, 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 Milton, MA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Within hours of my inquiry on a Saturday, Bill was out to my house to assess my needs. I needed a new water heater and my AC repaired. I knew I would be looking at a lot of money, because I had other quotes. His price was amazing and the job was completed in less than a week! I would highly recommend this company."
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 Milton, 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
13 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Yellow Dog Home Services, LLC
Yellow Dog Home Services, LLC
5.0(
10
)
Tankless Water Heater - Repair

Serving Milton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"I hired them for a plumbing project worth $2,500 (that option wasn’t available in the dropdown list), and the experience was excellent. From the front desk to the plumbers, everyone responded promptly and professionally. I had the chance to interact with several crew members, and each one showed genuine care and a strong commitment to customer service. The plumbing team did a great job—I would highly recommend them."
Heating Repairs!
Boiler Replacements!
Furnace Replacements!
Water Heaters!
Response time7 hrs
Response rate96%
35 neighbors recently requested a quote
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)
Tankless Water Heater - Repair

Serving Milton, MA and surrounding areas

Approved (Corporate)

In business since 1944

Free estimates

Emergency services offered

"Responded immediately to the side effects of a water break in the house. Immediately restored electrical services to dry areas, came back a few days later to restore more services. Gave detailed proposal before work was initiated, had enough supplies on truck to immediately replace most of affected parts. and advised on purchase of replacement fixtures. The technician was cheerful and understood my goals in restoring service."
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation

+56

Response time9 hrs
Response rate97%
85 neighbors recently requested a quote
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