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

Avatar for Christopher Viscarello Plumbing
Christopher Viscarello Plumbing
4.5(
72
)
Tankless Water Heater - Repair

Serving Haverhill, MA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I called Viscarello Plumbing and Heating when I had a leaking water heater. Chris looked at the job and recommended a very efficient tankless water heater. I decided to make the investment. Chris and crew installed my tankless. Now, showers never run cold-hot water on demand. I use less water- warms water up so much quicker in my 110y/o house. In July, with tankless system running sinks, shower and washer, my gas bill was $20! I also really like the way the tankless was mounted on the wall. We gained more space without the old water heater in the way. Best of all- nice neat work, no leaks and no mess. Since then, Viscarello Plumbing has plumbed my new kitchen, laundry room, replaced old pipes and replaced radiator valves. Rates are average-but work is above average."
High efficient boiler
High efficient boiler
High efficient boiler
High efficient boiler
High efficient tankless

+21

1 neighbors recently requested a quote
Recommended by88%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 Haverhill, 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 Haverhill, 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 Morris Heating & Air Conditioning
Morris Heating & Air Conditioning
4.8(
81
)
Tankless Water Heater - Repair

Serving Haverhill, MA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Justin and Cam, the technicians, did a great job. We have an old farmhouse with a very strange configuration of partial crawlspace and partial full basement, and water was leaking through the fieldstone foundation wall from the crawlspace. They quickly diagnosed that the problem was coming from 1 or 2 zones of the hot water radiator heating system, and they were able to shut off those zones to stop the leak, while allowing the house to still use water for sinks, toilets, and showers. We'll have to do more work later to replace pipes to the radiator but, because they are hard to access, we need to plan ahead for some construction work. I'm fully satisfied that these guys were able to find the problem and give us even a temporary solution that allows us to have our working plumbing again without the basement getting wet. Would definitely work with them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

4 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Heavy Doody Plumbing & Heating
Heavy Doody Plumbing & Heating
4.9(
22
)
Tankless Water Heater - Repair

Serving Haverhill, MA and surrounding areas

Approved

In business since 2013

Emergency services offered

Small jobs welcome

"Everyone else was so busy that they couldn't come for several days but Heavy Doody made time for us and fixed the leak in one day. We very much appreciated it since we had to turn off our water during this time."
back flow  for sprinkler sytym
2nd meter install
finish
finish
finish

+26

Response time4 hrs
8 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for MillTown Plumbing, Heating, Cooling and Electrical - Plumbing
MillTown Plumbing, Heating, Cooling and Electrical - Plumbing
4.3(
427
)
Tankless Water Heater - Repair

Serving Haverhill, MA and surrounding areas

Approved

In business since 1979

Warranties offered

Small jobs welcome

"Milltown was exceptionally responsive (before, during and after) the work was performed. Across the Milltown organization, they were responsive to my questions about water heater selection; Mike was responsive and a partner in selecting the best location for the new unit and after, Milltown and Mike were immediately responsive when part of the unit was not operating as expected. Milltown is a solid organization that takes pride in their work."
Team Photos
Team Photos
Team Photos
Water Heater Service
Water Heater Service

+4

Response time3 days
Recommended by88%of homeowners
Avatar for Spencer Home Services
Spencer Home Services
5.0(
25
)
Tankless Water Heater - Repair

Serving Haverhill, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1980

Free estimates

Emergency services offered

"Peter and Sheila were outstanding and went over and above what we expected in assisting us in dealing with a serious water service problem to our old house. I would certainly recommend and would use them again."
Repairs
Under Slap Installation
Equipment
Equipment
Equipment

+9

4 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Borels Plumber Inc
Borels Plumber Inc
5.0(
12
)
Tankless Water Heater - Repair

Serving Haverhill, MA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"These guys are great. Water heater broke and was leaking all over the cellar. They replaced my water heater and had everything done within a couple of hours. Highly recommend them and I will definitely use them again."
Water heater replacement
Water heater replacement
Bathroom remodeling
Bathroom remodeling
Kitchen remodeling

+4

Response time2 hrs
Response rate100%
Avatar for Maffei Plumbing and HVAC, LLC
Maffei Plumbing and HVAC, LLC
3.8(
12
)
Tankless Water Heater - Repair

Serving Haverhill, MA and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

At Maffei Plumbing and HVAC, LLC, we are committed to your comfort. With an experienced and qualified staff to provide quick service for any service needed. We can solve any problem with a friendly face. Give us a call for a free estimate.

Air Conditioning Installation
Rinnai Tankless
Water Filtration
Heating Systems
Heating Systems

+6

Response time1 day
58 neighbors recently requested a quote
Recommended by12%of homeowners
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