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New Hampshire Tankless Water Heater Services | JustCallHeritage.com

Whether you have a tankless water heater or need one installed, Heritage Home Service is New Hampshire’s expert in water heaters. We work with most residential makes and models and continually educate ourselves on what’s new in the world of tankless water heaters. We want to make sure that when we come to your home, we give you everything you need to make the right decisions for repairs, maintenance, and new installations.

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FAQs

  • Heritage Home Service Tankless Water Heater Services

    With its unique design that improves efficiency, a tankless water heater can save on your home’s overall fuel costs. A traditional tank-style water heater continually heats water stored in a large reservoir (tank). As you use this supply, the tank has to constantly reheat the same reserve regardless of how much water you use. It does this slowly, and you may often find yourself in a situation where a shower runs cold after too much use at one time. With a tankless water heater, the water is heated only as you use it, and it does so nearly instantaneously. This essentially gives you an endless supply of hot water, in a more efficient package.

    If you’re looking to make the switch, or already own a tankless system, Heritage offers tankless water heater repairs, new installation, and maintenance for New Hampshire residents. Read on to find out more about our tankless services.

    Tankless Water Heater Maintenance
    Owning a tankless water heater means routine annual maintenance is required to keep it running properly throughout the year. Many New Hampshire towns tend to have a lot of minerals in their water, which can cause build-up, hurting efficiency if not flushed out annually. When we install a tankless water heater for homeowners, we install a service port on all units to ensure it’s easier to maintain in the future. Unfortunately, many companies opt not to install a service port, which requires the unit to be taken apart and one installed before it can be serviced in the future.

    Tankless Water Heater Repair
    With proper maintenance, most repair issues can be avoided or caught before they become too severe, however, due to the high-efficiency nature of a tankless system, even small issues if not addressed soon enough can lead to major problems down the line. If you’re looking for a repair on your tankless water heater, we have certified experts to help you get back to enjoying your hot water as soon as possible.

    Tankless Water Heater Installation
    Whether you’re replacing an existing tankless water heater or looking to make the switch, Heritage takes away the guessing when it comes to choosing the right system for your needs. In most instances, we can even have your new system installed and up and running the same day. We’ll also pull any necessary permits required by your town so you can be sure you received a job done right.

Let Heritage Home Service Tackle Your Tankless Water Heater Needs

Call us today and let us know how we can help with your tankless water heater needs. We can schedule you for annual maintenance, repairs, or a new installation. We’ll treat your home like our own, presenting the options you need for a new tankless water heater or what you need for ongoing maintenance.

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When you choose Heritage, you can rest easy knowing that we provide straightforward options to help you budget for a complete solution that will last you for decades to come.

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Home Advantage Membership

With Home Advantage Membership, enjoy peace of mind knowing your home’s plumbing, heating, cooling, and electrical needs are handled year after year—hassle-free, with added benefits.

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What Our Customers Are Saying

My service call from Ian, an electrician from Heritage was excellent! He was incredibly thorough and detailed with the work. Thankfully he was highly knowledgeable regarding electrical service and home safety. He answered all the many questions i had. I would definitely call Heritage again because of the professional and timely service they provided. The value was absolutely enhanced by the service person and his ability to converse with and understand the customer and the specific electricity issues.

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Annie Craig

Annie Craig

October 20, 2026

Kenny was great. He was professional and punctual. He explained everything thoroughly and answered all of my questions. He took the time to get it right and I appreciate that.

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Shannan A.

Shannan A.

October 20, 2026

Brendan arrived within an hour of my call to fix a tripped breaker, provided quick and excellent service, and was very knowledgeable.

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Michael Sayward

Michael Sayward

October 20, 2026

The tech Jake that came out is a solid guy. He went above and beyond and got our furnace sorted. Will absolutely be getting any of my hvac work done with these guys.

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chris derosier

chris derosier

October 20, 2026

I called Heritage Home Service in a panic thinking my house was about to burn down. I called them after the first company I called told me it would be two weeks for them to come out. The woman who answered the phone was very nice and helped settle my nerves. She made it a point to say she’d put me on “early arrival” to get someone out quickly. About 20 minutes later, David was on his way. David was very friendly and professional and most importantly made me feel like I wasn’t crazy for calling them over a fishy smell on my basement stairs. He did a thorough safety check for me and figured out what the problem was. It was fully explained to me and he replaced our melting water heater breaker and enclosure. I had mentioned before the check that the baseboards in our basement weren’t working and maybe that had something to do with it, so he looked at those as well and fixed that too! David was very courteous, going out of his way to make his arrival less noisy, as I had a sleeping baby upstairs. He was fast, efficient and kind and I’d recommend him and Heritage to anyone!

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Kimberly Parquette

Kimberly Parquette

October 19, 2026

Service was superb! Mike knew just what the problem was, explained it and possible causes. It was repaired and he assisted me with warranty issues. He came out the same day I called, is polite and very knowledgeable.

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Thomas Salvo

Thomas Salvo

October 19, 2026

They showed up when they said they would were friendly/respectful and did great work! I would definitely recommend them/work with them again!

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Sam Modzelewski

Sam Modzelewski

October 19, 2026

We had a clogged pipe in the basement. Caleb was very professional, knowledgeable and very efficient and was able to unclog it. We are very happy with Hertiage Home Service! Ty Caleb :)

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Ann Blake

Ann Blake

October 19, 2026

I cannot recommend Luis A. and Heritage Home Service enough! Having a completely clogged shower drain on a Sunday is every homeowner’s nightmare, but Luis arrived promptly and handled the situation with total professionalism. He quickly diagnosed the issue, worked efficiently, and had our drain flowing like brand new in no time at all. His expertise and friendly demeanor made a stressful situation completely effortless for us. If you ever need plumbing help, Luis is definitely the person you want to call!

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Patrick Kelly

Patrick Kelly

October 18, 2026

Jason from Heritage was an awesome choice! He gave us an accurate estimate, and he knew his stuff! He was also very quick with the recessed light and outlet installation. We have found our go to electrician.

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Antonio J. Sanchez

Antonio J. Sanchez

October 17, 2026

Frequently Asked Questions

  • What are the benefits of a tankless water heater over a traditional tank?

    Tankless water heaters heat water on demand rather than storing hot water in a tank, which means you never run out during back-to-back showers or heavy usage. They are more energy efficient because they only heat water when you need it, they take up significantly less space, and they typically last longer than traditional tank water heaters.

  • How much does a tankless water heater installation cost in New Hampshire?

    The cost of a tankless water heater installation depends on the unit size, fuel type (gas or electric), and the complexity of the installation. Heritage provides upfront pricing and free estimates so you know exactly what to expect before work begins. We also offer financing options to help manage the investment.

  • Can my New Hampshire home switch from a tank to a tankless water heater?

    In most cases, yes. Heritage can retrofit your home to accommodate a tankless water heater. The installation may require upgrades to your gas line, venting, or electrical supply depending on your current setup. Our licensed plumbers will assess your home and explain exactly what is needed before any work begins.

  • How long does a tankless water heater last?

    Tankless water heaters typically last 20 years or more with proper maintenance, which is significantly longer than the 8 to 12 year lifespan of a traditional tank water heater. Regular descaling and filter cleaning help maximize the unit’s efficiency and lifespan.

  • Does Heritage service and repair tankless water heaters?

    Yes. Heritage provides complete tankless water heater services including installation, maintenance, descaling, and repair. Whether your tankless unit is not producing hot water, displaying an error code, or due for its annual maintenance, our licensed plumbers can help.

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