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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

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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 7909 reviews
Anthony Donatich
19 hours ago
Danny was knowledgeable and responded quickly to my questions and concerns regarding the equipment they suggested for my project. Carlos reviewed the existing conditions at my home and discussed the pros and cons of the possible design options, from an installers perspective who services and maintains the equipment. Very helpful! Tommy and his crew conducted their business very professionally and got the have systems up and running, very courteous crew!
Naun D'Felipes
21 hours ago
Good and prompt service, happy to have Universe home services just in time to fix problems with home heating issues!
Andres
21 hours ago
Tony was amazing. Explained everything, from the financing to the equipment, work warranties etc. True gentleman and knowledgeable.
joe c.
1 day ago
Chris did a great job. On time, answered all our questions and highly recommend him to all.
Latoya Dennis
2 days ago
Tony is very knowledgeable and professional technician,will recommend to anyone who has an issue with Ac system.
Grace Jurek
2 days ago
Universe Home Services is GREAT! Adrian is wonderful! Thank You Very Much!! I really appreciate it!😁👌🤙
Donato Lamberti
2 days ago
Very pleasant
Lori Valenti
2 days ago
Tony was punctual, professional, knowledgeable and personable. He answered questions about any possible issues. My mother used Universe. And highly recommended them. I’m waiting on 2 more quotes before I make a decision. I’m leaning towards your company, part because of Tony, Cost is also a factor.
Sabrina Wani
2 days ago
I had such a great experience working with this company. Keith and Tim are amazing — professional, knowledgeable, and very helpful in explaining how everything worked regarding our radiant heating system. They were always on time, they kept my family informed through every step of the repair process, and they were incredibly kind. They even let my five year old tag along during some of the repair which made him feel very special (and cool 😂). I cannot recommend them enough. This repair was for a very specific service that not many companies specialize in that hasn’t worked in our house for 10+ years. They fixed it within three days! Thank you guys so much for everything 🙏
Tade Kashimawo
3 days ago
Great and knowledgeable professional staff . The service for the Hot water tank was well explained to us.
John Didden
3 days ago
Mike was great. He explained everything very clearly and made appropriate remedies for my refrigerator. Excellent work.
Mark Platania
3 days ago
Universe is pretty good, they were here the next day after calling them to repair my AC unit. The guy Steve is very good at what he does, he came out twice to fix the unit outside and each time he knew exactly what it was and fixed it in no time.
Scott Abel
3 days ago
Fabulous service! Called when my deep freezer wasn't working right. They were onsite within an hour and fixed my problem. A++++++!! Highly recommend! 11/6/26 – Dean from Universe is an outstanding tech! He diagnosed a problem that was mis diagnosed by the previous tech. Saved me thousands of dollars!
I responded immediately when you previously requested, and said that the service call was excellent and Jason was a pleasure to deal with.
Kenneth Askin
4 days ago
Easy to make an appointment. Came the next day within the projected time. Went the extra mile helping us with our original issue, and then some. Very satisfied.
Sulky Suero
4 days ago
Dylan was amazing, he fixed the air condition unit very fast. He made the process easy and smooth.
Lorine Seewald
4 days ago
I’ve been a customer for a few years now and anytime I call they are pleasant, courteous and prompt!! Every tech that has come to my house is exceptional! They take the time to explain what they did and what if anything I need to do going forward.
Joseph Rossi
4 days ago
Nick Samson is a personable and consummate professional. He was punctual arriving at the time he stated. Nick is a highly trained HVAC specialist and resolved the problem with the chimney exhaust duct the first time. He is an asset to the Universe service organization. Thank you Nick!
Paul Kolinsky
4 days ago
Great communication and quality work
kerry b
4 days ago
Nick my service agent was through in identifying the problem with my radiant heat issue and explained so I understood what the problem was & time needed to order parts and complete the repair
Shari Appollon
5 days ago
What a positive experience for a situation that could have been disastrous! Our Burnham from 1987 died and Universe Home Service were responsive, gave a fair quote and delivered all within 3 days. The guys were detailed about the process and time it would take and did a smooth job cleaning up afterwards. Positive experience
Diane Salyer
5 days ago
All four, Chris, Sean, Jake and Carl were all professional and personable. They all were on time and cleaned up after they were done. It was a pleasure to have them take care of our electrical nightmare and install the new plumbing. We would use your company if we have any future projects that need to be done.
Bob Morris
5 days ago
New combi boiler installed
Peter M was professional, helpful, and knowledgeable. I appreciate and trust him and Universe Home Services.
Lisa W
6 days ago
Wow, i appreciate the next day response time to my request for an estimate . Every person I spoke to was clear, and had awesome customer service skills…plus my call was not screened by robot, yay! The consultant from Universe Home Services Jeff M was courteous, knowledgeable and all my questions and concerns were handled.

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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