
Tankless Water Heater Services on Long Island
Tankless water heaters are compact, efficient, and designed to deliver hot water on demand without the wait or the standby losses of a traditional tank.
For many Long Island homeowners, switching to tankless water heater is a straightforward path to lower utility bills and reclaimed space. Universe Home Services installs, replaces, repairs, and maintains tankless water heaters across Nassau and Suffolk County. Contact us online for a free estimate today.
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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 Nassau and Suffolk County.
Long Island’s Tankless Water Heater Team
Nassau and Suffolk 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 Nassau County’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.
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Call (516) 473-0202 to schedule tankless water heater services.
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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.
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Call (516) 473-0202 to schedule tankless water heater services.
Questions?
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 Nassau and Suffolk County. We can help with:
Nassau County’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.


Universe Home Comfort Club Service Plans Starting at
$49.99 / mo
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 Nassau and Suffolk 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, 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.
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.





