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Water heater being installed

Heritage Home Service is the expert you need to install your new water heater. Since 1986, our team has served the New Hampshire area with water heater maintenance, repair, and installation services.

Our goal is to empower and educate our customers on the best home solution. We’ll always provide honest, transparent pricing and recommendations based on what’s best for your home’s future. You can count on us for all your water heater needs.

JUST CALL HERITAGE (603) 354-0092

FAQs

  • Water Heater Installation Services in NH

    New Hampshire Water Heater Services

    If you’re on the hunt for a new water heater, there are various options depending on what you’re looking for and how you use hot water in your home. When you work with Heritage, we’ll discuss how you currently use hot water and what you’re looking to get out of the new water heater. By working together to come up with the best option, we can make sure you find the right type of water heater to meet your energy needs and fit your budget, with upfront pricing and financing options.

  • Types of Water Heaters to Consider

    There are two main categories of water heaters: tank and tankless. A tank-based water heater uses a tank to store hot water all the time, whereas a tankless water heater heats hot water on-demand as you need it. For some, a tankless water heater is more than enough for their hot water needs, but for others, especially large families, a tank-based water heater is the way to go.

    Most homeowners choose to replace what they already have or go with a newer, more modern water heater. If you use electric, you’ll tend to stay with electric or go with an electric-hybrid. If you are currently using a gas water heater, you’d stay with a gas water heater. Heritage will consider the fuel source, how old your home is, and where your tank is located to give you all the options for your home’s new water heater.

    One of the final decisions you’ll make when choosing a new water heater is the size. Most homes use a 20 to an 80-gallon water tank, with the most common size being a 40-gallon tank.

Heritage Home Service is Your Water Heater Solution

When choosing a water heater for your home, we’ll work with you from start to finish to understand your needs and help you make the right choice for a new unit. We’ll explain how the unit works, what the installation process looks like, offer transparent pricing, and schedule a time and date that works for your schedule. Call today to schedule a water heater installation with your friends at Heritage.

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Financing Made Easy

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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FREE

Generator Estimates

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See associates for details, restrictions, timing and website for licensure. Selection varies by location. While supplies last. See associate for details. Special price is per system. Offers expire on 10/31/2026
*valid in New Hampshire/Maine.

$99

Drain Clearing w/ Free Camera Drain Inspection

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See associates for details, restrictions, timing and website for licensure. Selection varies by location. While supplies last. See associate for details. Special price is per system. Offers expire on 10/31/2026
*valid in New Hampshire/Maine.

$49

Comprehensive Smoke Alarm Assessment

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See associates for details, restrictions, timing and website for licensure. Selection varies by location. While supplies last. See associate for details. Special price is per system. Offers expire on 10/31/2026
*valid in New Hampshire/Maine.

$149

Furnace/Boiler Tune-Up

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See associates for details, restrictions, timing and website for licensure. Selection varies by location. While supplies last. See associate for details. Special price is per system. Offers expire on 10/31/2026
*valid in Massachusetts only.
*does not include oil or steam systems

$50 Off

Smoke & CO Detector Installation + Free Home Safety Evaluation

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*valid in Massachusetts only.

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What Our Customers Are Saying

Caleb was amazing, knowledgeable and solved our issue quickly. Will absolutely recommend him to anyone looking for sump pump or plumping issues.

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Sarah Reece

Sarah Reece

October 16, 2026

They came out the day after I called and Drew was very helpful and did a great job explaining what was wrong with our french drain. He fixed what was needed and quoted additional services. Highly recommend

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Svetlana Dukhon

Svetlana Dukhon

October 16, 2026

Jordan was my technician with Heritage Plumbing. He was super helpful, kept me informed, followed up with me over the phone, sent me quotes and did his best to help with my tankless water heater repair and warranty from Navien. Unfortunately Navien did not want to replace my unit even though the problem was due to a faulty part that caused a leak inside the unit and created really bad damage. Even though Jordan worked hard to advocate for me, Navien would only send parts for replacement so I decided to buy a new unit instead.

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Cartiana Downie

Cartiana Downie

October 16, 2026

Brandon did an excellent job of installing my Google Ring Doorbell and living room ceiling fan. He was very polite and pleasant to talk too. I will definitely have him do more work as I need it.

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Debra Bennett

Debra Bennett

October 16, 2026

Absolutely fantastic experience with these folks! I had to have a major overhaul of my electrical panel and hot water heater and they did both the same day! Service was very professional, timely, and really well done. I was extremely impressed!!

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Bethany

Bethany

October 16, 2026

We were able to get a same day appointment. It was good news in that our problems need attention but it may cost less than we originally thought. Prompt service, courteous and professional. The technician/plumber was able to evaluate the problems and make recommendations.

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Jaimy Friedrich

Jaimy Friedrich

October 16, 2026

Called Heritage to repair my hot water heater. They were there within 4 hours, had a great plumber.did a great job at a great price. Will definitely call them in the future.

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Kevin ritchie

Kevin ritchie

October 15, 2026

Sean and Angel did an exceptional job, very friendly, professional and fast. They cleaned up beautifully. I highly recommend Heritage!

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Liza

Liza

October 15, 2026

The reason I use Heritage is they always do an exceptional job. The technician we had do a service (Jake), went out of his way to explain what he was doing to my curious autistic 8 year old. He was very understanding of his questions. Lucky for our Tech our son makes all the decisions. We ended up needing a new furnace but Jake and his manager worked hard to find the best options for us and Jake was excellent at explaining everything. Very detailed. Heritage also installed my water heater in the past and we used them again because they respected my house and did neat work. You get what you pay for with them.

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Erik

Erik

October 15, 2026

I had a light installed. There was no power going to the wires. They found the problem and fixed it and installed the light. The Elections were great.

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michael coughlin

michael coughlin

October 15, 2026

Frequently Asked Questions

  • How do I know when it is time to replace my water heater?

    Most traditional tank water heaters last 8 to 12 years. Signs that replacement is needed include rusty or discolored hot water, rumbling or banging noises from the tank, visible leaks or corrosion around the base, inconsistent water temperatures, and rising energy bills. Heritage can inspect your water heater and recommend whether repair or replacement is the better option.

  • What types of water heaters does Heritage install?

    Heritage installs traditional tank water heaters, tankless water heaters, and hybrid heat pump water heaters in both gas and electric configurations. Our licensed plumbers will evaluate your household hot water demand, available space, and energy preferences to recommend the best option for your home.

  • How long does a water heater installation take?

    A standard water heater replacement typically takes a few hours to complete. If the installation requires changes to your plumbing, gas line, venting, or electrical connections, the job may take longer. Heritage provides a clear timeline during your estimate so you know what to expect.

  • Does Heritage offer financing for water heater installation?

    Yes. Heritage offers financing options to help New Hampshire homeowners manage the cost of a new water heater installation. We provide upfront pricing with no hidden fees so you can make an informed decision before work begins.

  • Should I choose a gas or electric water heater for my New Hampshire home?

    The right choice depends on your home’s existing infrastructure, energy costs, and hot water demand. Gas water heaters typically heat water faster and cost less to operate, while electric models are easier to install and do not require venting. Heritage can help you weigh the pros and cons based on your specific situation.

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Whether you need routine maintenance, repair, or new installation – we have you covered. 

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