4.8
Based on 7231 reviews
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Complete Gas Water Heater Services from Universe

Gas water heaters are a reliable choice for Long Island homes, heating water faster than electric models and holding up through power outages.

Universe Home Services has been serving Long Island homeowners since 1954, and our licensed plumbers work on standard and tankless gas water heaters from the major manufacturers, offering installation, replacement, and repair with same-day response across Nassau and Suffolk County.

We take the time to explain whatโ€™s going on with your gas water heater and what signs to watch for, like inconsistent hot water or unusual noises. With a well-staffed team and quick response times, we can get to you fast and complete installations sooner than most. Our gas water heater services include:

If you are considering a gas water heater for your Long Island home, contact Universe Home Services to help you choose the right model and handle the installation end to end.

(516) 473-0202


Long Island’s Gas Water Heater Team

Nassau and Suffolk County homeowners call Universe when the hot water is out and they want it back today, not next week.

We are well-equipped to provide same-day water heater solutions, often faster than most competitors.

Our licensed plumbers work on standard and tankless gas models, handle the gas line and plumbing side of the installation, and cover the full scope in-house so a water heater project does not turn into coordinating with a second contractor.

Years in Business

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Emergency Service

Homes Serviced Annually

Why Work With Universe Home Services?

Gas water heater installation and replacement requires a licensed plumber in Nassau and Suffolk County. We perform every job with licensed plumbers on staff, not unlicensed installers running work they cannot sign off on.

No hot water is not a problem that waits for next week. We offer same-day service across Long Island so a morning without hot water does not become a weekend without hot water.

Gas water heater installation touches the gas supply, the venting, and the plumbing side of the home. Universe handles all of it, so a water heater project that surfaces gas line work does not require calling a separate contractor.

If replacement is the right call, we provide free estimates on the work. You get real pricing and scope before making a decision that shapes your hot water for the next 8 to 12 years.

A water heater replacement is a significant investment. We offer financing with approved credit to make the upgrade more manageable for homeowners.

We offer discounts for military personnel, veterans, and seniors, along with seasonal offers that keep service affordable for the households we serve.

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

We live and work on Long Island. Homeowners across Nassau and Suffolk County rely on us because we know the homes here and we show up when we say we will.


An Easy, Stress-Free Scheduling Process

Getting gas water heater service 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 is offered for homes that have lost hot water or are dealing with an active water heater issue.

Your licensed plumber evaluates the water heater, the gas connection, the venting, and the plumbing side of the installation. You receive a clear recommendation and upfront pricing before any work begins.

Every installation, replacement, and repair is tested before the visit ends. Your water heater is confirmed to be heating correctly, holding pressure, venting properly, and operating safely before we leave.

(516) 473-0202

What Our Customers Are Saying

100% Satisfaction Guarantee

4.8
Based on 7231 reviews
Jake was very professional and provided great details regarding services. I really appreciate the time and attention to details that he took.
The service was great and friendly, doesnt seem like there is any bull. A little expensive but worth it for the service.
Chester, the Universe Home Services HVAC technician, and Anthony the plumber, did an excellent job. These folks are highly recommended.
Just had new HVAC system and water heater installed by Universe home services. It was a very smooth process. Frank from sales gave us different options for installation. Explaining everything clearly. Ms. Tara answered all my follow up questions over the phone. They gave us a date for the job within couple of days of signing the contract. Keith and his crew arrived on time and explained how the process will go. They did a clean job and halled away the old equipment . Trevor the electrician inspected all the electrical work before leaving. They finished in one day as promised. I will recommend them
David was great. Explained everything that had to be done . Also gave me several options and a honest opinion. Thanks Dave
Great service!! Jason was very nice and I felt confident with the service he did and the price was very reasonable.
I will absolutely use this service again!!
Chris did a great job. Very efficient and neat.
Jamie did an evaluation of my home for the purpose of installing an HVAC Ductless system – he was very thorough and professional- I recommend him to anyone who is looking for a new system
Alex riviera was fantastic. Super knowledgeable and was a great help. Definitely recommend! Marc Thompson- comfort advisor explained our options with knowledge and patience.The installation technicians John Mahnken, Matt Drury and Bryan Fiddler did a very good job. Cleaned everything after the job.
Both Melanie and Nick very professional. Hard workers, know their stuff. Iโ€™m very happy with them and will be calling them back for more work.
We are really happy with our service contract with Universe, it keeps our systems humming and costs reasonable. They come right away and are very clean and professional. It seems all plumbers make that claim but these guys actually are.
Very knowledgeable electrician. I needed to install the smart doorbell and I am satisfied neither the outcome.
Great service. Thank u
Mike from Universe has been to my home a few times for different issues. He has been able to take care of it every time. Heโ€™s very knowledgeable and does a great job. Thanks again.
First thank you for coming out! To help my family, great guys did great work plus gave us some information regarding upgrading
Universe service is punctual, knowledgeable and fast.
Chester was professional, efficient and courteous.
Knowledgeable, patient, and explained ductless AC clearly. Neat and tidy installation and clean up. Excellent job!
James did a great job, he brought up some issues that could pertain to a project I was getting a quote for. With his expertise he gave me that chance to talk about things I would have not realized could have had an impact on the work I needed to get done on the house. Thank you!
James was excellent! A calm presence during chaos. He explained the process and gave me a timeline.
Tony Ashmawi looked at my existing system. He didnโ€™t feel that I needed to replace the boiler and hot water heater now but there was some issues that I needed repaired now. Since both units were installed during super storm sandy I wanted to replace everything now.
Great service and very professional. My hot water heater broke down, and I contacted Universe. They arrived first thing in the morning to investigate and recommend a replacement since mine is already 10 years old. They returned on Monday and completed the job in a few hours. I love the job; it was well-organized and clean. The workers explained everything to me very clearly. Highly recommended!
Service tech Jeff was very professional and fast.
Really good service
Service was taken care of and well explained. Additional services will be taken care of in a timely fashion.

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

(609) 799-3434

Advantages of Gas Water Heaters

Gas water heaters deliver benefits that standard electric models cannot match, especially in homes with existing gas service.

Standard and tankless gas water heaters both take advantage of natural gas for faster heating, lower operating costs, and continued operation during power outages.

Gas water heaters heat water faster than electric models, which means quicker recovery times and a steady supply of hot water for busy households that run multiple fixtures at once.

Natural gas typically costs less than electricity on a monthly basis for water heating, which means a gas unit often costs less to run over time and shows up as lower utility bills across the life of the system.

Standard gas water heaters do not rely on electricity to operate, so they continue to deliver hot water when the utility goes down. That matters on Long Island, where nor’easters and summer storms can take the power out for extended stretches.

If your home already has a gas line, installing a gas water heater is typically quick and less disruptive than you might expect, especially when replacing an existing gas unit with a new one of the same type.

Signs You Need a New Gas Water Heater

Most gas water heaters last 8 to 12 years, and the unit usually tells you it is nearing the end of its service life before it fails completely.

Recognizing the signs of a failing water heater helps you replace it on your schedule instead of during an emergency.

Unusual noises during operation typically indicate sediment buildup at the bottom of the tank, which reduces efficiency and stresses the burner. A quiet water heater that has started making noise is telling you something has changed.

Water at the base of the tank, at the fittings, or from the relief valve points to either a plumbing-side repair or a tank failure. A leaking tank is rarely something to defer, and confirming the source quickly is how a small repair stays small.

Hot water that runs out faster than it used to, takes longer to recover, or arrives at an inconsistent temperature points to a failing burner, a worn thermocouple, or sediment that is insulating the tank from the heat source.

Rust-colored or cloudy hot water usually means the tank’s interior is corroding or the anode rod has failed. Once corrosion reaches this stage, replacement is typically the right call.

Gas Water Heater Services

Universe provides the full range of gas water heater services across Nassau and Suffolk County.

Whether you are installing a new unit, replacing an aging one, or diagnosing a specific issue, we handle the scope with licensed plumbers who work on standard and tankless gas systems. We can help with:

We install gas water heaters safely and correctly so your home has hot water when you need it. That includes sizing the unit to your home’s demand, handling the gas line connection, confirming venting, and testing the system before we leave.

If your old unit is not working like it used to, we replace it with a new, energy-efficient gas water heater, including free replacement estimates so you see the scope before committing.

We fix common issues like inconsistent heating, leaks, pilot and ignition problems, and strange noises to get your system running smoothly again, with same-day response for homes that have lost hot water entirely.

Family dancing together in living room


Green Universe Van parked on the side of residential street

(516) 473-0202

Other Types of Water Heaters

If you are considering a switch from gas, Universe installs and services electric and tankless water heaters across Long Island.

Gas is the right answer for many homes, but electric and tankless systems have their own advantages that may fit your home better depending on your hot water demand, fuel availability, and installation space.

Electric water heaters are a strong option for homes without a gas connection or for homeowners who want to avoid combustion equipment entirely. We handle electric water heater installation, replacement, and repair across Nassau and Suffolk County.

Tankless water heaters heat water only when you need it, which means endless hot water and no stored tank taking up basement space. Tankless is available in both gas and electric configurations, and we help homeowners evaluate which fits the home’s demand and infrastructure.

Other Solutions for Your Home from Universe Home Services


Schedule Gas Water Heater Service on Long Island

No hot water does not have to mean waiting a week for a plumber.

Universe Home Services provides gas water heater installation, replacement, and repair across Nassau and Suffolk County, with same-day response for homes that have lost hot water. Contact us online or call to get on the schedule.

Universe Home Services Technician near open van doors

Gas Water Heater FAQs

How long does a gas water heater last?

A gas water heater typically lasts between 8 and 12 years, depending on maintenance and water quality. On Long Island’s hard water, scale buildup inside the tank shortens that life at the bottom of the range, which is why we recommend periodic flushing for standard tank units.

How do I turn off a gas water heater?

To turn off a gas water heater, set the thermostat to off and shut off the gas supply valve near the unit. If you smell gas or have any other safety concern, leave the home and call the gas company and a licensed plumber.

Does a gas water heater need electricity?

Most standard gas water heaters do not need electricity to operate, which is why they continue working during power outages. Some newer models use electricity for ignition or digital displays but still operate through short outages on their own.

How can I tell if I have a gas or electric water heater?

Check for a gas line and burner at the bottom of the unit. If you see a gas line running to the unit and a burner assembly underneath, it is a gas unit. If there is no gas line and you see heating elements with a power cord instead, it is electric.

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