4.8
Based on 7605 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 7605 reviews
Paul Reh
1 day ago
I received a quote on replacing an older existing central air conditioning for my home last summer from Frank Barczik. I didnโ€™t decide to purchase at that time. Last week an emergency situation developed and I called Frank. He quickly and professionally sent me a new quote. I decided to go ahead with the replacement. He stopped by to double check everything. Universe was able to have an installation crew at my home the next day. The crew worked neatly and diligently throughout the day to install the system by 5 pm. Frank stopped by midday to check on everything. The installers were polite and knew what they were doing. I am very satisfied with the work that was done. If you want a professional job done right the first time with a great company that stands behind their work, choose Universe.
Mary Vargas
4 days ago
Connor Tomaszewski is one of the best technicians out there and the only one who truly knows Navien boilers inside and out. His work is outstanding, and he is always professional, knowledgeable, and reliable. I highly recommend him to anyone looking for top-quality service!
We recently hired Universe for our oil to gas conversion, along with some related work. Everyone who worked on these projects was professional and a pleasure to deal with. In particular, Nikki LaCava did a wonderful job coordinating the work and assisting with our permits and other required paperwork. Brian Gerle and Hayden Muttee did a fantastic job installing the gas piping for the project, while Sal Tarantino and his crew (Hayden Muttee and Nick DiGiacomo) also did fantastic and efficient work removing our old furnace and hot water heater and installing the new equipment. Additionally, Christopher Martin did a great job fixing an interim problem with our old hot water heater before the final conversion was completed. Thanks to you all for a job very well done – each one of you deserves a five-star review! Thank you again for everything, Craig and Claudine Livingston
Paula Condit
6 days ago
Dawid Boroch and Tyler Quintero came to upgrade my electric, replace box inside and outside. Fantastic job done. Neat clean and knowledgeable. Explained all! Very happy with Universe
JG
1 week ago
June 2026 The pump from my washing machine decided to stop working a few nights ago. What a disaster! Thank goodness I had the gizmo on the floor that starts beeping when water hits it because it could have been a lot worse. The water in the pump kept pouring out until it was empty. I called Universe and Melanie F. came over. She evaluated the situation and made plans to come back the following day to install a new pump. I was so impressed with Melanie. Her recommendations on the new pump worked out great. I was so pleased with Melanie's professionalism and knowledge that she's coming back soon to install the automatic water main shut off when it senses a leak. Once again I highly recommend Universe and Melanie F.! April 2026 Nick S. came to do the yearly service for my air conditioning. Nick is great and very up front which I like. After almost 17 years I need a new system. Ugh! He brought me outside and showed me all the reasons why it should be replaced. I could wait & see but didnโ€™t want to risk it so Saturday Iโ€™ll be getting a new system. It just needs to be done. I was very happy Nick explained everything to me. Heโ€™s very knowledgeable & friendly. I would also like to acknowledge the following employees from Universe who all had some part of the installation of my furnace, compressor and humidifier. Everyone who came to my house were so friendly and respectful. The guys all explained what was being done. They also installed an Air Scrubber which purifies my system of spores, etc. The employees are Tommy Ercolano, Matt Drury, Carlos Caceros, Justin Quan-Soon, Jamell Smith and Karl Rindfleisch. All were fabulous. And I can't forget Chester Sacknievich who came back to fix an issue I was having and figured out the solution. Chester is great. I highly recommend Universe. Their employees go above and beyond!!
Vanessa Arnone
2 weeks ago
Our water heater unexpectedly had to be replaced after National Grid identified it as a safety concern before reconnecting our gas service. Needless to say, it was a very stressful and completely unexpected situation. From my very first phone call, everyone at Universe Home Services was kind, patient, and incredibly helpful. They understood the urgency and had a technician at my home much sooner than I expected. Jeff Madonia was outstanding. He took the time to thoroughly inspect everything, patiently answered every question I had, and never made me feel rushed or like I was inconveniencing him. He explained my options clearly, walked me through the estimates on his tablet, and made sure I understood everything before moving forward. Initially, it looked like the installation might have to wait until the following morning. I asked if there was any chance it could be done the same day, and Jeff immediately went to see what he could do. A few minutes later, he came back and told me they were going to make it happen that day. That level of customer service meant so much during a stressful situation. I also appreciated how respectful Jeff was while working in my home. Even when I had left the door unlocked while he was moving equipment in and out, he always knocked before coming back inside. That level of professionalism and respect stood out to me and made a stressful situation much easier. The entire experience, from the first phone call through the completed installation, was professional, efficient, and reassuring. Jeffโ€™s kindness, knowledge, and willingness to go the extra mile made all the difference. Thank you, Jeff, and thank you to the Universe Home Services team.
I had an issue with my HVAC, and Universal was able to send someone out very quickly. Both Chester and Dawid were knowledgeable, professional, efficient, and very respectful of my home. They diagnosed and fixed the problem promptly, and the entire experience was smooth from start to finish. Thank you for your excellent service! I will definitely use Universal again in the future and highly recommend them.
Anthony Hartmann
3 weeks ago
Excellent work by Patrick for a light fixture and hard wiring for a video doorbell with chime.
Michael Greer
3 weeks 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
3 weeks 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
3 weeks 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
3 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
4 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
4 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
1 month ago
Ac repair
Donna Cincotta
1 month 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
1 month ago
Came within reasonable time, fixed problem & checked for other possible issues.
William Funcheon
1 month 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
1 month ago
I am pleased with the the service man that came out. He is very knowledgeable and professional
Donna Mckeon
1 month 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
1 month ago
Very professional Answer all my questions Did a great job
Ronald Goebel
1 month ago
Chester was the best service tech we ever had. A real credit to Universe-friendly, knowledgeable and thorough in his work

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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