4.8
Based on 7597 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 7597 reviews
Excellent work by Patrick for a light fixture and hard wiring for a video doorbell with chime.
Michael Greer
7 days ago
Universe responded promptly to my service call and the technician was very friendly and knowledgeable. We had to wait a few days for the parts, but when it arrived (new sewage ejector pump) the repair was done quickly and everything worked perfectly.
howard valan
1 week ago
Tim the technician answered all my questions to my satisfaction and explained all my options thoroughly. His work solved my issue and he offered some insight into a replacement unit if I opted to do so.
Desiree Boucher
1 week ago
I had a great experience with Universe Home Services. I initially left a message on their call system and received a call back with 30 minutes from Laurie. I explained my concern and issue we were having with out Central AC and she was able to schedule service for that same day. I received text messages with arrival time, when the technician was on their way, and when they arrived at my home. Our service technician was Bob Grillo. He was super personable, kind and very thorough in his process. He answered all my questions and explained exactly what he was doing as he was troubleshooting. I had a great experience overall with the customer service as well as the job completion and would highly recommend Universe Home Services and Bob as the technician.
Danny Sutton from Sales was amazing.without him this was not possible.so kind and empathetic towards customer amazing service From the crew who was here to install the air condition Sean Dany Jared Brian Very professional polite and extremely knowledgeable They worked so efficiently and kept the area clean that you could not feel that a big job was completed after they left. I will recommend Universe home service to everyone out there who is looking for a reliable company.
shelly bansal
2 weeks ago
VERY. GOOD. SERVICES. THEY. COVER. GAURENTEE. FOR 5. YEARS. GOOD PRICE. TONY. ASHMAVI. THE. BEST. WHO. EXPLAINED. ALL DETAILS. AND. GIVE. GOOD PRICE. TOP. RATED. THANKS TO. UNIVERSAL. HOME. SERVICES
Scott Faucheux
2 weeks ago
We have used Universe now for a few installations, Anthony recently swapped out a toilet for us, cleared out a major blockage on a sewer line and Vidal just installed a whole house filtration system for us after our previous system failed on our 1929 house. They have been very polite, knowledgeable and efficient and have always given us fair and tiered options with pricing. We would highly recommend their services.
Justin Bridges
2 weeks ago
Micheal was a great technician, perfectly on time, fast detailed diagnosis, made quick work of the repair work, communicated everything. Universal did all my installations of all new HVAC and I always trust them with the maintenance.
Mario Sesso
3 weeks ago
Ac repair
Donna Cincotta
3 weeks ago
Kevin came to my home, evacuated the problem and detailed the situation to me. He ordered the new ductless equipment and installed it the next day. Kevin was professional, honest, neat and made sure the air conditioning was working properly. For my air conditioning units and repairs, I wouldnโ€™t go anyplace else.
The team was incredibly professional, friendly and worked efficiently to get the job done. I had a great experience
fran lucher
3 weeks ago
Came within reasonable time, fixed problem & checked for other possible issues.
William Funcheon
4 weeks ago
Dean, your technician is definitely an asset to your company. He was so thorough and kind. I canโ€™t say enough about him!
Laurence Andrews
4 weeks ago
I am pleased with the the service man that came out. He is very knowledgeable and professional
Donna Mckeon
4 weeks ago
Our service person Sean was great. Very knowledgeable and friendly. Answered all questions we had. Definitely will use Universe home services again
I canโ€™t say enough good things about Universe home services and repairs. We have been a customer of Universe for years. Recently we had a plumbing issue and they were wonderful. Jeff the plumber was very professional and a pleasure to work with. We have also worked with Marc on a gas conversion. He was very knowledgeable, professional, and helpful. Great company with quality people! Update June 2026 – another 5 stars for Universe Home Services and electrician Dawid Boroch. Dawid was very professional, knowledgeable, and his work is exceptional. He explained the scope of the job and answered our questions before beginning his work and walked us through the results afterwards. Dawid was an absolute pleasure to work with and we highly recommend him!
Marie kopczynski
4 weeks ago
Very professional Answer all my questions Did a great job
Ronald Goebel
4 weeks ago
Chester was the best service tech we ever had. A real credit to Universe-friendly, knowledgeable and thorough in his work
Elise Puig
4 weeks ago
From sales to installation I was confident that this was the company that would deliver!
Wendy Fiedler
4 weeks ago
Very informative introduction, stated work was performed very efficiently and timely, cleaned up after work was completed, workmen were all very polite and respectful. Great job!
Brenda Cohen
4 weeks ago
Ac repair
Quick response time, fixed issues within an hour and good communication from beginning to end. Will use Universe again and would recommend
Stephen Sacco
4 weeks ago
Very good. JP is terrific – an asset to Universe Bob also did a great djob with Sean was excellent at problem solving But why did he put this over surge ?
Patrick Hoey
4 weeks ago
Professional advice and good information provided. Peter was on time, called a few minutes in advance and is a very nice guy!
Helene Sherman
4 weeks ago
Chris was very nice took his time going through a very large house, explained a lot of things, and was very honest. He did not try to โ€˜sell usโ€™ on anything we didnโ€™t need.

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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