Tankless Water Heaters

Tankless Water Heater Installation in Nashua

On-Demand Hot Water from a Family-Owned Plumbing Team Serving Nashua Since 1993

When a Nashua homeowner is ready to make the switch to on-demand water heating, DiBacco Plumbing, Heating and Cooling is the local team to call. We’ve been serving the Nashua area and the broader Merrimack Valley since 1993, and our team brings forty-one years of total hands-on plumbing and heating experience to every installation. As a family-owned business with no corporate franchise structure behind us, every project gets personal oversight from people who live and work in this community.

We’re licensed and insured, and we handle the full scope of tankless water heater installation for Nashua-area homes, from the initial sizing assessment through final testing and homeowner walkthrough. Estimates are free. A $160 service fee applies per visit and is credited toward the cost of work when you proceed. Financing and flexible payment plans are also available so upfront cost doesn’t stand in the way of getting the right system installed.

Ready to get started? Call DiBacco Plumbing, Heating and Cooling at (978) 961-4865 to schedule your free estimate for tankless water heater installation in Nashua, NH.

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Upgrade Now, Pay Over Time
Flexible Financing Options Available

Unexpected repairs? No problem! Invest in your home’s comfort with budget-friendly financing. Our easy payment plans make upgrades and repairs more manageable. Contact our team today to learn more about our financing plans and get started today.

Let's Get to Work!

To provide the best service and schedule efficiently, we charge a $160 service fee per visit. If you proceed with the recommended work, the fee is applied toward your total.

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Get a Free Estimate on Tankless Water Heater Installation in Nashua

If you’re ready to move forward or just want honest answers before you decide, DiBacco Plumbing, Heating and Cooling is here to help. We’ve served the Nashua area since 1993, and we can give you a straightforward assessment of what your home needs, what it will cost, and whether NHSaves rebates of up to $500 may apply to your installation. Senior and veteran discounts are available on all service calls, and financing options are there if you need them.

Call DiBacco Plumbing, Heating and Cooling today at (978) 961-4865 or reach us through our online contact form to schedule your free estimate. We’re your neighbors, and we’ll treat your home that way.

Why Choose DiBacco Plumbing, Heating and Cooling?

  • Insured for Your Peace of Mind
    We make it easy for you to have confidence in the team you call.
  • Contact Us for a Free Estimate
    We make it easy to get started with a completely free quote.
  • Ask About Our Warranty

    We back our services with a warranty for your peace of mind.

  • Affordable Financing Options

    Our financing options support you however you'd like to pay.

What Sets DiBacco Plumbing, Heating and Cooling Apart for Tankless Installation

Choosing an installer is as important as choosing the unit itself. Forty-one years of plumbing and heating field experience shapes how we approach every tankless installation, from sizing the unit to match your household’s simultaneous hot water demand to confirming the gas line has the capacity the new unit requires. Our team operates with Master Plumber precision, and all work meets or exceeds current New Hampshire building codes.

Gas line hookups for tankless units get the same rigorous treatment as any gas piping project we take on. We perform pressure testing on all gas work and follow strict local utility regulations, so the installation is safe and code-compliant from day one. Southern NH water can carry enough mineral content to accelerate scale buildup inside tankless heat exchangers, and we can walk you through water quality considerations during the assessment.

Every installation with us includes:

  • A pre-installation evaluation of your home’s hot water demand, plumbing layout, and gas or electric supply
  • Arrival in a clearly marked vehicle with the tools and parts needed to complete most jobs in one visit
  • A clean, protected workspace throughout the job
  • A final walkthrough so you understand how to operate and maintain your new system
  • Honest estimates with no jargon and no pressure
  • Senior citizen and military veteran discounts on all service calls

NHSaves Rebates & Financing for Nashua Homeowners

Nashua homeowners who are customers of Liberty or Unitil may qualify for the NHSaves rebate program, which currently offers up to $500 on qualifying high-efficiency tankless water heater models. Rebate amounts and funding availability are subject to change, and installation by a licensed contractor is required to qualify. We’ll review your eligibility as part of the free estimate so you know what savings may apply before any work begins.

If you’d rather spread the cost over time, we offer financing and flexible payment plans to fit a range of budgets. Current program details are available on our rebates page at dibaccoplumbing.com/hvac-plumbing-rebates/. Between potential rebates and financing options, a tankless upgrade is more accessible than many homeowners expect.

Our Reviews

Hear From Your Friends & Neighbors
    “Great Work”
    “I felt they were very honest and was comfortable with them being in my home when I couldn’t be there... I will definitely see them again in the future! Great guys, great work! Thank you!”
    - LouAnne D.
    “Wonderful Service”
    “Couldn’t recommend them enough. We are so happy to go into our first winter in our home confident in our heat!”
    - Abigail H.
    “Prompt and Efficient”
    “Excellent service! They were very patient and very helpful in working with getting my condominium association to approve it.. They completed the project promptly on the date promised. I trust them and will be delighted to do business with them again.”
    - George B.
    “Exceptional Customer Service”
    “These guys are exceptional at what they do. They fixed my water fixtures promptly. They are the hardest blue collar workers I’ve seen. Their motto is hard work, honesty, and transparency. Great prices, efficient, and passion is their motto.”
    - Noah M.
    “Fantastic Company”
    “DiBacco Plumbing is a fantastic company to deal with! Very reasonable pricing, clean and reliable, no long waits to get your project done. Do yourself a favor, contact DiBacco for all of your plumbing, heating and cooling needs.”
    - Dean A.
    “Highly Recommend”
    “DiBacco Plumbing and Heating installed high efficiency heat pump units to my home. His team were very professional and neat/clean. I was very satisfied with their work. I would highly recommend to anyone! Thanks”
    - Mike P.
    “Extremely Responsive”
    “I always know I am going to get an honest assessment, a quick and expert solution and a fair price done with smile and great conversation. Thank you so much!”
    - Michele L.
    “Outstanding Job”
    “They came in and took care of the whole removal and installation in a day. The whole process was well managed, with the personal touch that you get from a family run business.. I would not hesitate to recommend DiBacco Plumbing to anybody!”
    - M. A.

Contact Us Today

Let’s Get Started—Request a Free Estimate Today!

To provide the best service and schedule efficiently, we charge a $160 service fee per visit. If you proceed with the recommended work, the fee is applied toward your total.

  • Please enter your first name.
  • Please enter your last name.
  • Please enter your phone number.
    This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please lookup your address.
  • Please make a selection.
  • Please enter a message.
  • By submitting, you agree to receive text messages from DiBacco Plumbing, Heating and Cooling at the number provided, including those related to your inquiry, follow-ups, and review requests, via automated technology. Consent is not a condition of purchase. Msg & data rates may apply. Msg frequency may vary. Reply STOP to cancel or HELP for assistance. Acceptable Use Policy