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Find Water heater repair or service pros in Dover

Avatar for Robert Johnson Plumbing
Robert Johnson Plumbing
4.9(
311
)

Serving Dover, 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 rate94%
20 neighbors recently requested a quote
Wanda's Water Heaters
4.9(
11
)

Serving Dover, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"I purchased a heat pump electric water heater to take advantage of a generous rebate from Efficiency Maine. When looking for someone to install it I was referred to Jophil by a real estate company that I know. I called and was given a time that Kyle would arrive to give an estimate and perform the installation (if the estimate was accepted). I did accept the estimate and Kyle got right to work. He did a nice job and made sure that everything was in good working order before he left. I was very pleased with my first experience with this company and would not hesitate to call on them again in the future."
Installation of boiler
Response time1 day
2 neighbors recently requested a quote
Recommended by9%of homeowners
Avatar for Skovron Mechanical Services
Skovron Mechanical Services
4.1(
85
)

Serving Dover, NH and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Excellent communication from Keith; outstanding service from Roger. Professional, timely, and reasonably priced. They came in under estimate on my boiler repair and advised that a second bit of work that had previously been discussed was not going to be necessary. I will definitely use them again and highly recommend them!"
Commercial Cooling
Before Oil Boiler
Old
Oil Boiler
HVAC Roof Top Unit

+19

Response time9 hrs
2 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Heritage Home Service
Heritage Home Service
4.2(
1,355
)

Serving Dover, NH and surrounding areas

Approved (Corporate)

In business since 1988

Emergency services offered

Warranties offered

"My service technician today was Ken and he was very professional and friendly! He gave me various quotes and fixed the toilet to my satisfaction. This was my second time having them come for repairs and I was extremely satisfied both times. Prices can be a little high but the work is impeccable and the technicians are always very professional! I would recommend them for any home repair or job that you have. I have actually scheduled a visit for another job as well. Thanks Ken! Great job!ð ð ð"
Golf Tournament
Water quality team
HVAC tech
Electrical team
Bryan, electrician

+24

203 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Gotme Under Pressure ?, LLC
Gotme Under Pressure ?, LLC
4.2(
640
)

Serving Dover, NH and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"Mike is an excellent, friendly, and extremely knowledgeable plumber. I'll definitely be contacting him for future plumbing issues. The new water heater went in quickly and properly, with a few laughs here and there."
Response time1 day
4 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Coy Plumbing & Heating
Coy Plumbing & Heating
5.0(
8
)

Serving Dover, NH and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"Mitchell was very professional and great at the work he’s done on my 2 homes. I’ve had 2 bathroom remodels. Funace and hot water heater replaced. Put an expansion water tank on one of my homes. Hooked up my water for my new refrigerator and dishwasher. Have not had any issues with his work. Highly recommend."
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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
)

Serving Dover, 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 !!!"
Additional Photos
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+1

Recommended by100%of homeowners
Avatar for DiPietro Heating & Cooling
DiPietro Heating & Cooling
3.7(
46
)

Serving Dover, NH and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"Can I give an "A+" rating? Reached out to a handful of HVAC contractors to get a quote on replacing my 20 year old central air system. From the woman who I initially spoke with to the guy who came out to give me a quote (who happened to own the company) to the crew that came out to do the project, I got first class service. I scheduled the initial visit and Joe arrived 15 minutes early. He gave me a handful of quotes and was very clear on the differences between the systems. I settled on one of the lesser priced systems and never felt like he was trying to "up-sell" me. In fact the system I purchased qualified me for a rebate from my energy provider. I was able to schedule the install for 2 days later and again, the team showed up right on time. The guys were personable, respectful of my home, and very hard working. I have a brand new central air that seems to be working perfectly. It's significantly quieter than my old system. They cleaned up any mess that was made and gave me a complete walk through of my new system. I could not be happier."
High efficiency Trane XL16i system
High efficiency Burnham Boiler
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+3

Recommended by66%of homeowners
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FAQs for water heater repair or service projects in Dover, 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 Dover, 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.