4.8
Based on 7705 reviews
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Complete Tankless Water Heater Services from Universe

Switching to a tankless water heater, often called a continuous water heater, delivers hot water on demand without the limits of a tank.

Universe provides complete tankless water heater services across Long Island:

Universe Home Services offers 24/7 emergency plumbing services when a tankless water heater fails. Contact us today for service anywhere in Long Island, Rockland County & Bergen County.

(516) 473-0202


Long Island, Rockland County & Bergen County’s Tankless Water Heater Team

Long Island, Rockland County & Bergen County homeowners call Universe for tankless water heaters because the systems need to be sized, installed, and serviced by a team that understands both the equipment and local water chemistry.

Tankless water heaters have grown in popularity as homeowners look for efficiency and space savings over traditional tank units.

Universe has been installing water heaters across Long Island since 1954 and understands how Long Island’s hard water affects tankless equipment in particular, where mineral scale on heat exchangers is a real maintenance consideration. Our plumbers size tankless units correctly for household demand and install them to support long service life.

Years in Business

Satisfaction Guaranteed

Emergency Service

Homes Serviced Annually

Why Work With Universe Home Services?

Tankless water heater installation requires a licensed plumber. We perform every job with licensed master plumbers on staff.

Since 1954, our team has been installing and servicing water heaters across Long Island. That history gives us working knowledge of the homes, the water chemistry, and the equipment that performs here.

When a water heater fails, the household feels it immediately. We offer same-day service and fast installation to get hot water restored without delay.

Know what you are paying upfront, with no surprises. We provide free installation quotes so you can make an informed decision without pressure.

A tankless installation is an investment. We offer manageable payment plans to suit your budget and make the upgrade more accessible.

Our Home Comfort Club includes annual service and priority scheduling. Tankless water heater maintenance fits naturally into the membership schedule.

We offer special pricing for military personnel, veterans, and seniors. That keeps quality service accessible across the customers we serve.

Universe is a BBB Accredited Business. Seven decades of plumbing work across Long Island stands behind every tankless water heater we install, repair, or maintain.


An Easy, Stress-Free Scheduling Process

Getting a tankless water heater installed or serviced should never feel complicated.

Universe Home Services makes the process easy from start to finish.

Call us or schedule service online at a time that works for you. Same-day availability and 24/7 emergency service are offered when you need it.

Your plumber evaluates your household’s hot water demand, the existing plumbing setup, and whether gas or electric is the right fit. You receive a clear recommendation before any work begins.

Every installation is tested and commissioned before the visit ends. Your tankless water heater is confirmed to be delivering hot water at the expected flow and temperature.

(516) 473-0202

What Our Customers Are Saying

100% Satisfaction Guarantee

4.8
Based on 7705 reviews
Fast response, good information on products and options, efficient work, nicely done and clean.
The technician was professional, friendly, knowledgable and informative.
The Universe Home Service has been working on this project replacing all water pipes with an excelente and very clean way. The technician J Henry has been very polite and did excelente job. I really recommend his working way.
Ronald Muhammad
2 days ago
Weโ€™re happy with the service Anthony provided.
Mary Schneider
2 days ago
Chester was professional, efficient and courteous.
Ivy Spilberg
2 days ago
On time completed all work quickly and quietly
Michael Voges
2 days ago
On time, polite, no mess, explained everything.
Antonio Velez
2 days ago
Jamie Bonifazio was professional and super knowledgeable. I appreciate the time he spent explaining details of project. Makes a huge difference, helps a lot with my understanding of what needed to be done. Now I can use the information to make an informed decision. Great advisor.
Peter Lo Russo
2 days ago
Was pleasant and resolved our problem pretty quickly.
Virgilio Viray
2 days ago
Having a problem on freezing outdoor pipe in the winter. Given clear alternatives on how to permanently solve the issue. Have to contact the tile guy first.
Regina Boyd
2 days ago
I was referred to Iniversr by a coworker when I mentioned I wanted to transfer from oil to gas. From my first call to schedule a appointment to meeting Jake the procrss has been flawless. The text introducing Jake with photo is a great pre introduction. Jake explained the process throughly and answered all of our questions. We have been met with several companoes and have decided to go with Universal for our transfer from oil to gas. Jake thank you for making our experience exceptional upto thos point in the process.
Shaulene Wright
3 days ago
This company has a fast response time.The technician was punctual and very knowledgeable. I will definitely use them again if needed
Universal came to the rescue! Lol, Christopher Seppe came for an estimate for a conversion, and as we walked down to the basement, we both stepped onto a puddle. My basement was literally flooding, the boiler overheated, and it was releasing massive amounts of water; it was a mess!! Chris jumped on it, stopped the boiler from leaking, and walked me through the conversion process. The price was right, the contract signed, and I got a temporary water heater the next day. Long story short, I am very thankful for the service and how everything worked out.
I hate calling an electrician, but Universe Home Services more than changed my mind. First, I needed service that day and they did it, no questions asked. When the technician Jimmy arrived, he explained what was needed and gave me a fair price. From the woman who took my call to Jimmy who did the repairs, everyone was friendly and very customer focused. Very happy with them and would absolutely recommend!
frank scherz
3 days ago
Steve Usher from Universe Home Services is very polite and knowledgeable and he is also very professional and I would highly recommend Universe Home Services
Johnson was just here to fix a problem with my gas furnace! Thank you so much Johnson! I was nervous w the loud noise, he found the problem and fixed it, efficiently, professionally, and so timely! I called last night, he was here early this morning. Thank you, Universe!! You still get 5 stars, even though you had to come back!! Peter was pleasant, kind and came early! The new part should be great. The fix was worth a try. Thank you, Universe!!
Christopher was very professional and very thorough I just became a customer of this company and I was extremely pleased with the boiler maintenance performed.
Steve P
5 days ago
The company Universe were professional, knowledgeable and accommodating from estimate to install of my new AC system. The comfort consultant was patient with explaining what we needed and competitive and fair with pricing. The install team arrived exactly on time and got right to work. They were curtious and clean throughout the day, answered every question we had and explained the new system in detail before leaving. They also didn't leave a spec of debris behind from the house to the yard to the driveway. I would definitely recommend and use them again for any issue from HVAC to plumbing. It seems like they can do it all.
Brian siegel
6 days ago
Great
Phillip Matassa
6 days ago
Rich was knowledgeable about our AC system and he explained clearly what he was doing and gave tips on ways to keep it running soundly. I would definitely want Rich to come back for future maintenance to our AC & heating systems.
Lynn Katz
6 days ago
Chester the technician was extremely professional. Clean and knowledgeable.
Carlos reviewed the existing conditions and discussed the pros and cons of the possible design options, from an installers perspective who services and maintains the equipment. Very helpful!
Professional, funny and politeness
Adam
1 week ago
Had water heater and furnace serviced, Nick Sperlazza and Nick Samson are great techs, very friendly and knowledgeable and helpful. Thanks Nicks!
Grace Noll
1 week ago
Yes, the Service person, Nick S. Lwas efficient, knowledgeable, professional and courteous

Universe Home Services truck stocked for HVAC, plumbing, and electrical repairs

(609) 799-3434

Tankless Water Heater Installation

Installing a tankless water heater is a meaningful upgrade for Long Island, Rockland County & Bergen County homes looking to save space and reduce energy usage.

Universe installs tankless water heaters across Long Island, Rockland County & Bergen County, including gas and electric models.

Tankless units are significantly more compact than traditional tank water heaters. That compact size frees up valuable space in your utility room, basement, or closet.

Tankless water heaters only heat water when it is needed, which eliminates the standby losses of a traditional tank. That efficiency shows up as lower utility bills month after month.

A correctly sized tankless system delivers hot water on demand, without the wait for a tank to reheat. That makes simultaneous fixture use possible in homes where the tank used to be the bottleneck.

Reduced energy usage makes tankless a meaningfully greener choice than a traditional tank. Homeowners focused on long-term environmental impact appreciate the efficiency.

Tankless Water Heater Replacement

Tankless water heaters are known for their durability, and they often last more than 20 years. When a unit does reach the end of its service life, replacement is the right call.

Universe handles tankless water heater replacement across Long Island, Rockland County & Bergen County.

Tankless systems typically last 20 years or more. A unit past that window is a candidate for replacement, particularly if performance has declined or repair costs are mounting.

When the cost of a significant repair approaches what a new unit costs installed, replacement is the better investment. A new unit comes with manufacturer warranty and updated efficiency.

A tankless water heater sized for a smaller household or different fixture count may struggle to keep up as usage changes. Replacement with a correctly sized unit restores reliable flow.

Major plumbing work or a kitchen or bathroom renovation is a natural time to replace and reintegrate the tankless water heater. We coordinate the work as part of the larger project.

Tankless Water Heater Repair

Tankless water heaters can develop common issues including mineral buildup and ignition problems, which may require professional attention.

Universe diagnoses and repairs tankless water heaters across Long Island, Rockland County & Bergen County. We can help with:

Long Island’s hard water deposits mineral scale on tankless heat exchangers, which reduces efficiency and eventually affects flow. We descale the unit and restore performance.

A tankless unit that will not fire or cuts out mid-use has an ignition system, gas supply, or flame sensor issue. We diagnose the cause and complete the repair.

Temperature swings or a unit that delivers only lukewarm water has a flow sensor issue, a gas supply problem, or a component that needs attention. We identify the cause and correct it.

Modern tankless units display error codes when they shut down. We interpret the codes and resolve the underlying issue before the unit cycles through the same failure again.

Family dancing together in living room


Green Universe Van parked on the side of residential street

(516) 473-0202

Tankless Water Heater Maintenance

Tankless water heaters require routine maintenance to continue performing at the efficiency and flow they were installed to deliver.

Universe provides tankless water heater maintenance across Long Island, Rockland County & Bergen County.

Flushing a tankless water heater prevents mineral buildup and keeps the system running efficiently. On Long Island, where water is hard, annual flushing is the standard recommendation.

Inlet filters, sensors, and valves need periodic inspection to keep the system performing. Maintenance catches early wear before it becomes a no-hot-water event.

Gas tankless units require proper combustion and venting for safe, efficient operation. We verify both as part of the annual maintenance visit.

Scheduling maintenance before peak heating season or heavy-use periods confirms the unit is ready for the demand. That proactive service reduces the chance of a failure when hot water is needed most.

Other Solutions for Your Home from Universe Home Services


Choose Universe Home Services for Tankless Water Heater Services

When it comes to tankless water heater services on Long Island, Rockland County & Bergen County, Universe Home Services brings over 70 years of experience to every visit.

As your trusted partner, we combine rapid response with quality service. Contact us online or call to get on the schedule.

Universe Home Services Technician near open van doors

Tankless Water Heater FAQs

How long does a tankless water heater last?

Most tankless water heaters last more than 20 years with proper maintenance. That is significantly longer than a traditional tank, which typically lasts 10 to 12 years.

Will a tankless water heater supply enough hot water for my home?

A correctly sized tankless unit supplies plenty of hot water for the household. Sizing depends on flow rate demand and simultaneous fixture use, which we evaluate during the consultation.

Is it expensive to switch from a tank to a tankless water heater?

Switching to tankless involves equipment and installation costs that are typically higher than a straight tank replacement, but the efficiency gains and longer service life often offset the difference over time. Financing options are available.

How often does a tankless water heater need maintenance?

Annual maintenance is the standard recommendation, especially on Long Island where hard water accelerates scale buildup. Flushing and inspection keep the unit performing at the level it was installed to deliver.

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