4.8
Based on 7530 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

Satisfaction Guaranteed

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 7536 reviews
Barbara Nelson
6 hours ago
JP kept me informed while he serviced my heating system. He was professional and friendly. He was efficient and knowledgeable and let me k ow what was happening at each step of the repair.
Chris Natch
6 hours ago
Danny was prompt and on time. He was very professional and explained in detail the options I had as far as ac v. Mini splits, placement of the units and he was able go answer all of the questions my wife and I had
Chandra Singh
8 hours ago
Matt Cinquemani from Universe Home Service is the best. He replaced our AC unit and did any outstanding job. He went above and beyond. He is extremely pleasant and care about the customers. I highly recommend this company and their staff
Betty Amendola
8 hours ago
Nick was very friendly and personal. He fixed our central air when two prior technicians couldnโ€™t
Johanna Suazo
9 hours ago
Very professional and honest. Justin took tge time to explain the problem and provided several options that I can choose from. I felt really comfortable with my decision.
Marc came out to go over our options for adding central air or a hybrid ductless system. He took the time to walk through the entire house, inspect everything thoroughly, and explain all of our options in a way that was easy to understand. He was incredibly friendly, even taking the time to interact with our dog, which we appreciated. After the walkthrough, he sat down with us and carefully explained each system, even drawing a diagram to help us better understand how one of the options would work. We absolutely loved working with Marc and could immediately tell how knowledgeable and experienced he is. We never felt rushed and left the consultation feeling informed and confident about our next steps. Highly recommend!
Brett Topel
12 hours ago
Jimmy was terrific. A true pro who explained everything very clearly.
Fran Boccio
13 hours ago
I was pleased with the time that Johnnatan Marquez took to explain my issue
When our AC compressor decided to quit, Universe Home swooped in to save the day! ๐Ÿฆธโ€โ™‚๏ธ Our service tech, Chris, was absolutely fantastic and handled everything with such professionalism. It's always a relief when you find a company you can trust for those unexpected home emergencies. Big thanks to Chris for his quick and efficient work! Definitely recommending them to everyone. Feeling cool and cozy again, thank goodness! ๐Ÿ˜Œ #HomeRepair #ACService #TrustedProfessionals #CoolComfort
Randy Levin
2 days ago
With a plumbing emergency on a Saturday, finding a good plumber is impossible…. except for Universal Home Services. From the time I called to Brian's arrival was less than 30 minutes. He immediately put me at ease and knew exactly what needed to be done. I had a washing machine delivered but during installation, a pipe snapped and they were not qualified to fix it. Brian fixed everything within 20 minutes, then installed the washing machine and stayed to run through a cycle to make sure everything worked perfectly. Some might say the price was high but for a Saturday emergency….. and so promptly and efficiently, I can't complain.
The technician was very knowledgeable and helpful
Ann Fitzpatrick
2 days ago
technicians prompt, professional and explained details in full recommend highly
Helen Moran
3 days ago
Your technician was very helpful and very patient.
Tech was great and very helpful Keith was efficient and very professional Found the issue and addressed it immediately!
Latoya Dennis
3 days ago
Very informative and knowledgeable technician Johnnatan who explains what causes the issue and what can be done to resolve Ac issue.
John J Gallogly
3 days ago
My Electrician was Bryan. Did a great job diagnosing my immediate need of installing a dishwasher electrical component. however I also asked him for more general questions around my central AC thermostat that wasnโ€™t working properly and an outside Electrical unit for my barbecue. He did a great job of diagnosing and Give me a quote for those repairs as well. He also found a safety issue with my sub panel . He was a great communicator and will be back in my house in two weeks to do additional work. Based on Bryanโ€™s professionalism, I highly recommend universal Electric
Tom Malone
3 days ago
Universe did an excellent job on installing my gas boiler. Their employees were respectful, courteous, and very knowledgeable on the job they had to do I would highly recommend this company.
Theresa Reichel
4 days ago
Excellent service from start to finish! Excellent communication regarding appointments , always on time , friendly and professional service . Beautiful work and clean up , also very courteous of our home . Highly recommend!
Dylan Allen was a knowledgeable, professional technician. He explained all he was going to do in a way I coukd understand it. He was very helpful if something was needed. He was very personable. He has been to my home on two different occasions and each time I was very satisfied.
Addys Reilly
4 days ago
Danny was prompt to the appointment and explained everything in terms we could understand
Patty Costello
4 days ago
Expert review of our system Would definitely recommend
Bill W
5 days ago
Universe Home Services is a great company. A great one stop shop for all your A/C, Heating, Plumbing and Electric. Just had Chester here to check our A/C system and he was great. Very friendly and professional. Did a great job and gave us great advice on maintaining our system. We called this morning to try and get a technician here for tomorrow. They had Chester available and he showed up around 8:30. Always a great experience with Universe Home Services.
Rob Hammond
5 days ago
Bryan H. was excellent. He was prompt, courteous and explained all that he did. I would request him for future projects.
James Heine
5 days ago
Quan and Matt worked efficiently kept my house clean. They answered all of my questions
Joanne O'Kane
5 days ago
Brandon arrived right on time and fully explained every detail regarding the issue with my hot water heater-from best case scenario to worst. There was no pressure to go for the expensive fix immediately. He was a genuine guy who understands the idea of a budget. If I must do the big fix in the future, I would not hesitate to use him.

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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