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Top-Rated Water heater repair or service pros in Somersworth - Updated Nov 2026

Avatar for Robert Johnson Plumbing
Robert Johnson Plumbing
5.0(
328
)
Water Heater - Repair or Service

Serving Somersworth, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Customers say: True professional

"Robert gave such amazing service and installed our water heater the same day I contacted him. !He was very reasonable with his pricing with no hidden costs and the water heater looks and runs great. Thankyou Robert!"
Response time2 hrs
Response rate96%
38 neighbors recently requested a quote
Wanda's Water Heaters
4.9(
12
)
Water Heater - Repair or Service

Serving Somersworth, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"Wanda?s is awesome! My old electric hot water heater tank finally retired to the recycling bin. I called on Tuesday evening and spoke to a knowledgeable technician named Chad. I told him what my old unit was doing and he said it definitely needs a replacement after 17 years. He then asked how the home is heated. And then gave me the 2 options for my home. He patiently explained the differences between the hybrid heat pump unit vs the electric one that was presently on its way out. He answered all my newbie questions. He explained the pricing between the two units. I told him I have to discuss everything with the cfo and I would call back Wednesday morning. He also told me they would get me on the schedule for tomorrow or the next day. That was amazing. I called the next day and spoke with Amanda to schedule me in the following day. Chad showed up the following morning and did an awesome job. He was very polite and knew his job well. I am very satisfied so far with Wanda?s."
Installation of boiler
Response time1 day
2 neighbors recently requested a quote
Recommended by8%of homeowners
Avatar for Bourne Family Plumbing, LLC
Bourne Family Plumbing, LLC
4.8(
12
)
Water Heater - Repair or Service

Serving Somersworth, NH and surrounding areas

Approved

Free estimates

Credit card accepted

"I had a great experience with this plumber! He arrived right on time and was very professional and friendly from the start. I had a leak in the plumbing in the wall between the bathroom and the bedroom and he took the time to explain exactly was going on. He even went under the house (in the cold and dark) to inspect the issue further and took pictures so I could clearly see the problem myself. He explained the repair in a way that was easy to understand and fixed the leak quickly ad professionally. I really appreciated his honestly, communication and the quality of his work. Everything is working perfectly now! I definitely would recommend him and would happily call and refer him if I ever need a plumber's help!!"
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+14

4 neighbors recently requested a quote
Avatar for Coy Plumbing & Heating
Coy Plumbing & Heating
5.0(
8
)
Water Heater - Repair or Service

Serving Somersworth, NH and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"I highly recommend Mitchell for any plumbing that needs to be done for anybody. He is honest, Also, very neat. And he shows a lot of pride in his work, and I am 73 years old, I have seen a lot of plumbers, some. I will never recommend like daigo plumbing. Stay away from him. But Mitch is number one and I respect everything that he's done for me today. Great worker. On time and takes a lot of pride in his work. I'm very happy to have him here today. He was godsend to me, so thank you, Mitch. I will recommend you to anybody of my friends, our family or anyone that calls on a plumber. Your name will come up and that's a guaranteed. I will never call anybody else's again, but you Thank you for your help. As far as I am concerned, you are number one. There's no one above you and I have seen like I said, and dealt with a lot of plumber, so thank you again. You stay safe, cause the people Do need plumber like you. Stay safe."
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+4

Response time2 days
Response rate100%
Recommended by87%of homeowners
Avatar for TJ Thistlewood Plumbing & HVAC
TJ Thistlewood Plumbing & HVAC
5.0(
6
)
Water Heater - Repair or Service

Serving Somersworth, NH and surrounding areas

Emergency services offered

"Tyler & his team were very professional and thorough with repairing my tankless water heater. Tyler was quick to respond to my call for a repair service call and took the care to be as neat as possible during the repair and cleaned up nicely when the service was completed. TOP NOTCH !!!"
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+1

Recommended by100%of homeowners
Avatar for DiPietro Heating & Cooling
DiPietro Heating & Cooling
3.7(
46
)
Water Heater - Repair or Service

Serving Somersworth, NH and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"Scheduling was challenging. On the first attempt, the service guy never arrived. When I called, the scheduler said there was some computer error, apologized, and rescheduled. On the second attempt, the guy came and did the service, then recommended having the expansion tank replaced. I was supposed to get a call to schedule the follow-up service, but never did. I called a few times and left a message, eventually getting a callback from someone who was able to schedule the service. Once again, the first attempt was a flop. They sent out a heating technician, not a plumber, to replace the expansion tank, which he was not certified to do...and he arrived late. On the second attempt, the plumber arrived on-time. He was very professional, efficient, and did great quality work. He made a recommendation for some other plumbing work after I asked him about an issue we had been having. He told me to call the company to schedule the work. Once again, I struggled to even get the service scheduled. This time, I gave up after 3 or 4 tries. I'll be contacting another plumber to get the work done at some point."
High efficiency Trane XL16i system
High efficiency Burnham Boiler
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+3

Recommended by66%of homeowners
Avatar for DF Richard Energy
DF Richard Energy
4.1(
31
)
Water Heater - Repair or Service

Serving Somersworth, NH and surrounding areas

In business since 1932

Free estimates

Emergency services offered

DF Richard Energy is the area's (seacoast nh & so. maine) leading provider of propane and heating oil, high efficient heating and cooling (HVAC) sales and service as well as energy conservation solutions through our in home services division dr. Energy saver seacoast. We help our customers every day to making their homes more comfortable and energy efficient.

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Recommended by80%of homeowners
Avatar for D. R. Powers, LLC Plumbing, Heating & Gas Systems
D. R. Powers, LLC Plumbing, Heating & Gas Systems
5.0(
5
)
Water Heater - Repair or Service

Serving Somersworth, NH and surrounding areas

Free estimates

Emergency services offered

D. R. Powers, LLC Offering mechanical Plumbing, Heating & Gas Systems; Repair, Design & Fabrication. Owner Darren Powers is a master plumber, gas fitter and additionally has over 34 years experience in general construction. We can handle most projects; from leaky faucets, new additions, commercial businesses, and housing developments. Covering all of NH. No job is too small or large! Darren loves the challenge of creating and turning the customer's vision into reality.

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Recommended by100%of homeowners
Showing 1-10 of 23
FAQs for water heater repair or service projects in Somersworth, NH

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Somersworth, NH homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.