Tankless water heaters provide hot water on demand while taking up less space and using energy only when you need it. Whether your current unit needs repairs, routine maintenance, or it’s time to install a new system, Harris provides professional tankless water heater services for homeowners throughout South Jersey. Since 1986, we’ve helped homeowners enjoy dependable hot water with solutions tailored to their home’s needs. A Harris home is a happy home.

If you’re searching for tankless water heater service near you, schedule service with Harris today. Our team installs, repairs, maintains, and replaces tankless water heaters from many of the industry’s leading manufacturers.

Harris Plumbing, Heating, Air & Electric team members discussing a tankless water heater installation with a homeowner outside a service vehicle before beginning the project.

Benefits of a Tankless Water Heater

Upgrading to a tankless water heater offers long-term advantages for comfort, efficiency, and performance. Unlike traditional storage tank systems, tankless units heat water only when you need it, providing reliable hot water while reducing energy use.

  • Endless hot water. Enjoy a continuous supply of hot water for showers, laundry, and dishes without waiting for a tank to refill.

  • Lower energy costs. Because water is heated on demand, tankless systems avoid the standby energy loss associated with storing hot water.

  • Longer system lifespan. With proper maintenance, many tankless water heaters last significantly longer than traditional tank models.

  • Consistent performance. Tankless systems deliver reliable hot water temperatures, even during periods of high demand.

  • Reduced risk of leaks. Without a large tank storing gallons of water, there’s less risk of a tank failure causing significant water damage.

  • Environmentally friendly. Improved energy efficiency helps reduce your home’s overall energy consumption and environmental impact.

Our Tankless Water Heater Services

Whether you need a repair, routine maintenance, or a complete system replacement, Harris provides comprehensive service for tankless water heaters. Our technicians work with many leading manufacturers and take the time to diagnose problems accurately, explain your options, and complete the work with quality craftsmanship.

Tankless Water Heater Installation

If you’re installing a tankless water heater for the first time or replacing an older unit, we’ll help you choose a system that matches your household’s hot water demand. Proper sizing and professional installation help maximize efficiency, performance, and long-term reliability.

Tankless Water Heater Repair

If your system isn’t producing enough hot water, displays an error code, or isn’t operating properly, our technicians can identify the cause and recommend the appropriate repair. We focus on restoring dependable performance while helping you avoid unnecessary replacement costs whenever practical.

Tankless Water Heater Maintenance

Routine maintenance helps keep your system operating efficiently and reduces the risk of unexpected breakdowns. During a maintenance visit, we’ll inspect the unit, flush mineral buildup, check critical components, and verify that your tankless water heater is operating safely.

Tankless Water Heater Replacement

When repairs are no longer the best long-term solution, we’ll explain your replacement options and install a new system that fits your home’s needs. If you’re considering a traditional system instead, our water heater services team can help you compare your options.

Our Tankless Water Heater Service Process

Every home has different hot water needs, so we begin each service with a complete evaluation of your system. Our goal is to provide clear recommendations, quality workmanship, and dependable hot water you can count on.

1. System Evaluation

We inspect your tankless water heater, discuss any performance concerns, and identify the source of the problem or maintenance needs.

2. Clear Recommendations and Upfront Pricing

After completing the inspection, we’ll explain our findings, answer your questions, and provide upfront pricing before any work begins.

3. Professional Service

Our technicians complete the recommended repair, maintenance, installation, or replacement using quality parts and proven service methods.

4. Final Testing

Before we finish, we test the system to verify it is operating safely, delivering consistent hot water, and performing as expected.

Tankless Water Heaters and Your Plumbing System

Your tankless water heater depends on the rest of your home’s plumbing system to deliver reliable hot water. Leaking pipes, failing shut-off valves, mineral buildup, and water pressure issues can all affect your system’s performance and efficiency. During your service appointment, our technicians inspect for related plumbing concerns that could impact your tankless water heater over time.

If we identify a problem elsewhere in your plumbing system, we can recommend the appropriate plumbing repair to help protect your tankless water heater and keep your home’s plumbing operating reliably.

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Need service? Our team is just a phone call away.

Why Choose Harris for Tankless Water Heater Services?

Choosing the right company for your tankless water heater service means working with technicians who understand these specialized systems. Since 1986, Harris has helped homeowners throughout South Jersey keep their hot water reliable with professional service and straightforward recommendations.

  • Since 1986. Serving South Jersey homeowners for nearly four decades.

  • Upfront Pricing. You’ll know the cost before work begins.

  • Same-Day Service When Available. We work to restore your hot water as quickly as possible.

  • Friendly Technicians. Our team takes the time to answer your questions and explain your options.

  • Satisfaction Guarantee. We stand behind the quality of our workmanship.

Schedule tankless water heater service with Harris today. A Harris home is a happy home.

Schedule Tankless Water Heater Service in South Jersey

Whether you need routine maintenance, a repair, or a new tankless water heater, Harris is ready to help. Our technicians provide dependable service designed to keep your hot water flowing efficiently and reliably. Since 1986, homeowners throughout South Jersey have trusted Harris for quality plumbing solutions backed by upfront pricing and a satisfaction guarantee.

Schedule your tankless water heater service with Harris today and experience why A Harris home is a happy home.

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Tankless Water Heater
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Expires: Nov 30, 2026

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Our Reviews

Hear From Our Happy Customers

Immediate concern when I woke up to the smoke detector beeping. Made the wise decision to call Harris, whom I have called once before with a plumbing issue. SO GLAD I DID! Not only were they there within the hour the problem was diagnosed and fixed within another hour of being there. Had to have both smoke detectors replaced and hard wired. Was told my electrical system was old and needs to be replaced, wasn't sure he could even fix the breaker that was the root problem, but he did!
I am just amazed at the service this company provides. Everything needed was on the truck and the technician, Scott, I believe, was very knowledgeable. Scared me but then put my mind at ease being able to fix everything then and there. Will definitely call Harris for any plumbing, heating, air or electrical issues I may have from now on!!
Lauren Chambers
2 days ago
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Although it took a couple of rescheduled appointments the wait was worth it. After recovering from a fire we have had many contractors and technicians in our home. Our technician, Colson, was incredible. First of all he treated our home with respect. Booties were put on at the front door and floor coverings were supplied and used during the moving of appliances. (We had a dishwasher installed which took a little extra work on his part.) Everything was explained in full and he did not leave until we knew the dishwasher worked and we were satisfied. If we ever need a plumber again we will be sure to ask for him. Great Job!
Edward Breland
3 days ago
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Pascual was professional and courteous. He knew exactly what to do to solve our problem. A pleasure to work with.
Gail Fiske
3 days ago
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Kevin was very professional and courteous. Fixed our problems.
Karla Rhodes
3 days ago
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Needed a plumber desperately. Only one toilet completely clogged! Harris Plumbing was there in a jiffy and problem solved! Thank you to a most wonderful team and especially our plumber who, in spite of our toilet being unusually made, fixed the problem without additional problems, with total explanation, with only a short wait, and without totally taxing our budget. Thanks so very much. Difficult to be without facilities...
Suzann Panichello
4 days ago
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We had the need for a plumber today. Colson, from Harris, arrived promptly after our call; he immediately presented with a professional and friendly demeanor.
He explained everything without trying to upsell us on anything - that was very much appreciated!
Most importantly, he correctly diagnosed and corrected the issues and even offered suggestions on how we could mitigate future problems on our own.
HIGHLY recommended!
Rusty Williams
4 days ago
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Thanks to Harris Plumbing and Heating and their service technician Andrew Knorr I had another great experience with Harris Plumbing and Heating today.
Candeis Ramseur
4 days ago
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All the technicians who came over today were very friendly, professional, timely.
Mike Altmann
6 days ago
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It was just what I ask for. Also informative on my maintenance needs. Very friendly and I can’t believe the job was done and completed so soon after I called.
Wanda Campanella
6 days ago
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Josh was excellent, arrived on time, did the work quickly and efficiently, cleaned up and kept us informed of everything. Would and do recommend Harris to everyone we know looking for your type of business.
Allen Lane
1 week ago
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    4.8

    Google Rating

    Based on 13,162+ reviews

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    Our Service Area

    Serving South Jersey, Including Woodbury, Salem & Surrounding Communities

    Harris Plumbing, Heating, Air, & Electric has been serving the communities in New Jersey for over 40 Years. Even if you don’t see your county listed, give us a call to find out if we can make it out to your home.
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      Camden County
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      Burlington County
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      Gloucester County
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      Cumberland County
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      Salem County
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      Atlantic County
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      Cape May County
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      Mercer County
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      Ocean County
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      Monmouth County
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      Middlesex County
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    A harris home is a happy home!

    From routine maintenance to emergency repairs and complete system replacements, Harris Plumbing, Heating, Air, & Electric is here to keep your home safe, comfortable, and running smoothly. Schedule your service today or give our friendly team a call to get started.
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