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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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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

We contracted Heritage to clean mold buildup from our split AC system. We had Owen from the company visit our home for the service and he was very thorough and professional. He made sure everything was clean and functioning properly.

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Saksham Soni

Saksham Soni

July 9, 2026

We had a water emergency in our basement that affected our electric panel. They were able to come within a couple of hours to check for fire Hazzards. They were great!! Very friendly and professional. He talked to us like we were long lost friends. I highly recommend.

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Amy Bates

Amy Bates

July 8, 2026

We called Heritage when our condenser failed. They were the first company we thought of. We called Sunday night and the automated system was able to secure us an appointment for Tuesday. Angel was the tech and he was amazingly helpful, professional and thorough. He provided us with three options for how to proceed. And he was able to secure us an appointment with the new installation team for Wednesday morning. Everyone communicated with us each step of the way – were exceedingly knowledgeable and professional. Service was top notch!

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Brooke Ten Eyck

Brooke Ten Eyck

July 8, 2026

Dennis did an awsome job. He was very professional and very prompt. Will call again for future jobs. Thank you

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Bill Childs

Bill Childs

July 7, 2026

I truly cannot thank Danny and Jordan enough for the absolutely exceptional service they provided. They were warm, unbelievably kind, so generous and so genuine. I could not be more happy with my new hot water heater, thank you, thank you, THANK YOU!!

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Brian Lowe

Brian Lowe

July 6, 2026

Nick was excellent at diagnosing our problem! He was very informative and knowledgeable offering solutions for every type of budget, which we appreciated. Would definitely use Heritage again!

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Kate Norris

Kate Norris

July 5, 2026

Called Saturday morning. 9.am 4 th of July central air conditioning stop Working Friday night at 9 pm 96 degrees out side very high humidity 61% humidity in side teck was here by 1pm ( angle ) very nice neat professional gentleman Went right to work trying to ignore my large two dogs. 1-@124 lbs Great Dane 1-@ 100 lbs boarder collie / lab mix. A barker With in an hour he had diagnose the problem replace the defective part packed up his truck , got paid and was gone to his next appointment Can’t ask 4 anything better then that Total cost $396.00 all my fault because I misplaced the original installers name and invoice It should have been under warranty because the entire system was less then a year old $4,600 Live an learn All in all Heritage gets 10 plus from Me

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Anthony Cordice

Anthony Cordice

July 4, 2026

I had a great experience. I had the misfortune of a water heater tank leak on the 4th of July and was able to have someone come out to address the issue first thing in the morning.

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Tom Breault

Tom Breault

July 4, 2026

I might have a new favorite home service company. Heritage knows their stuff. They installed a new electrical panel, and adapted well to minor challenges during install. They even took the time to do a the load calculations for future HVAC, rather than just tell me to upgrade my underground electrical service. Another company attempted rewiring my stove outlet and left without testing it. Looking forward to more work with Heritage

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Romeo Portillo

Romeo Portillo

July 3, 2026

Sam was amazing !!! This company goes up and beyond . Hottest day of the year and my central air broke. I knew I was going to have to get a new system furnace at some point. But today was that day!!! Sam was so helpful. He even went out and put ac units in for us to keep cool until they gone back in 2 days. Thank you soooo much

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Carol Buchanan

Carol Buchanan

July 3, 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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