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Find Water heater repair or service pros in Merrimack

Avatar for Robert Johnson Plumbing
Robert Johnson Plumbing
4.9(
316
)

Serving Merrimack, NH and surrounding areas

Approved

In business since 2009

Free estimates

Offers commercial services

"Robert Johnson was so helpful in discussing the h/w heater installing and the venting requirements. His price was so much better than others companies in the area. His crew for the actual install was as also great! Kevin, the crew leader, explained how everything works and the cleanup was perfect!"
2 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,398
)

Serving Merrimack, NH and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"Sila saved me!! Of course right when fall is rolling around my heater broke! The job was quick and affordable! Their amazing customer service is also a huge factor why I will be using Sila again, especially Amy R. In management!"
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+6

Response time2 days
Response rate100%
63 neighbors recently requested a quote
Avatar for Grand Voyage Plumbing and Heating
Grand Voyage Plumbing and Heating
5.0(
60
)

Serving Merrimack, NH and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

Grand Voyage Plumbing and Heating is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. We have accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Water Heater
Water Heater
4th of July Savings
6 neighbors recently requested a quote
Recommended by86%of homeowners
Gotme Under Pressure ?, LLC
4.3(
647
)

Serving Merrimack, NH and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

Gotme under pressure? LLC IS A Plumbing, Heating & Gasfitting, Drain Cleaning professional in your area. We will meet all of your plumbing needs. We take the pressure off all your plumbing issues. As our company is built off of honesty, integrity and leadership, this is what you can expect.

1 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Daigle Plumbing Heating and Cooling
Daigle Plumbing Heating and Cooling
4.3(
39
)

Serving Merrimack, NH and surrounding areas

Approved

In business since 1981

Free estimates

Credit card accepted

"Daigle were quick to reach out to quote me for the work we needed - replace a water heater and arrived early! Very personable, professional. However, pricing was an issue. They were way outside of what other plumbers charge for this service and way outside of what Angi's has listed as average project costs. They did have an opening for next day installation which would have been fantastic but I couldn't justify the additional $2400."
9 ZONE On Boiler
3 Zone Boiler
4 Zone Boiler with storage Tank!!!
Oil Tank
6 Zone Boiler W/Storage Tank

+12

Response time1 day
101 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Expedition Plumbing
Expedition Plumbing
5.0(
9
)

Serving Merrimack, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"?I couldn't be happier with my new water heater installation. The team was professional, punctual, and incredibly efficient. They took the time to explain the new unit's features and ensured the workspace was spotless before leaving. ?It?s a relief to have hot water back with zero stress. If you need a reliable install, I highly recommend Expedition!"
55 neighbors recently requested a quote
Avatar for A Really Good Plumber
A Really Good Plumber
4.5(
46
)

Serving Merrimack, NH and surrounding areas

Approved

In business since 2007

Emergency services offered

Credit card accepted

"He was very knowledgeable and very friendly and his prices are very reasonable compared to other contractors and he did a great job installing wyn well tank I would definitely recommend him for any repairs"
Additional Photos
Additional Photos
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Priority Plumbing And Heating, LLC.
Priority Plumbing And Heating, LLC.
5.0(
6
)

Serving Merrimack, NH and surrounding areas

Approved

In business since 2024

Free estimates

Offers commercial services

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n\n

On the job
On the job
On the job
On the job
On the job

+2

Recommended by16%of homeowners
Showing 1-10 of 50
FAQs for water heater repair or service projects in Merrimack, 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 Merrimack, 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.