4.8
Based on 7338 reviews
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Boiler Replacement on Long Island. Universe Gets It Right.

A failing boiler in January is not a problem you can schedule around.

Your boiler replacement gets handled by a Nassau and Suffolk County team that sizes it correctly for your home and installs it right the first time.

You get a free in-home estimate, a technician who knows boiler systems, and pricing that is confirmed before any work is committed. Contact us online for a free estimate today.

(516) 473-0202


The Long Island Boiler Replacement Specialists

Nassau and Suffolk County homeowners have trusted Universe with their boiler replacements for decades.

Boilers in Nassau County are not all the same. You have cast iron gas boilers, oil boilers with burners that have been swapped out twice, steam systems in older homes that nobody touches anymore, and everything in between.

Universe technicians have worked on all of it. We have been replacing boilers in Levittown, Hicksville, and across the island since 1954. Long enough that we have done this work in some of the same homes twice over. As a BBB Accredited Business, PHCC member, and National Grid Value Plus Installer, we are also accountable to external standards and can connect you to rebate programs when your installation qualifies.

Years in Business

Satisfaction Guaranteed

Emergency Service

Homes Serviced Annually


(516) 473-0202

Fast Boiler Replacement Across Nassau and Suffolk County

Boiler heat is whole-home heat. When it stops, every room in the house feels it.

A boiler failure in January is not something you manage around. It is an emergency. Universe offers same-day replacement when heat is out and 24/7 availability when the failure happens at 11pm on a Saturday.

Your technician shows up knowing what boiler replacement in a Long Island home actually involves: the mechanical room assessment, the piping evaluation, the fuel source. Not a first look followed by a parts order.

(516) 473-0202

How Universe Handles Boiler Replacement

Boiler replacement is more involved than a simple swap, and Universe treats it that way. Here is what the replacement actually involves.

A technician comes to your home and evaluates your existing boiler, fuel source, piping configuration, baseboard or radiator condition, and your home’s actual heating load. Many Nassau County homes built in the postwar decades are running baseboard systems that have never been balanced, and that affects how the new boiler needs to be set up. We lay out every available option before anything is scheduled. You see what systems fit your home, what each costs, and why one makes more sense than another given your fuel source, home layout, and heating demands. No pressure, no upsell.

Licensed technicians remove your old boiler and install the replacement to manufacturer specifications and local codes, covering gas or oil connections, piping, controls, and expansion tank. We pressure-test the system and confirm there are no leaks before we move to startup.

Your new boiler goes through a complete startup sequence, and your technician balances the system across zones to confirm even heat distribution. You get a walkthrough of the controls and aquastat settings before the job is closed.


What Our Customers Are Saying

100% Satisfaction Guarantee

4.8
Based on 7338 reviews
The technicians Nick and Brian came on time, were knowledgeable and professional.
Universe was at my home for my annual air conditioning service. Johnson Pyram was the technician. He was friendly and efficient and performed a very thorough examination of my system. I would highly recommend this company.
The technician was very good.
James was professional and knowledgeable answered all questions. They use best quality materials which is important to me
Ver professional and helpful
Anthony Krachenfels from Universe Home Service was very professional and knowledgeable. He was honest about the situation and mentioned that he could have charged for opening up the ceiling to find out the problem, but since it wasnโ€™t a plumbing issue and not his area of specialty, he chose not to charge for that work. I really appreciate and respect his honesty.

He cleaned up really nicely afterwards.

He also recommended a reliable company for the necessary repairs, and they did a great job. If anything else comes up in the future, I will definitely be calling Universe Home Service again.
Great service, great technicians
Excellent service from start to finish. James Davan was professional, knowledgeable, and took the time to explain everything clearly. arrived on time, worked efficiently, and made sure everything was running perfectly before leaving. Pricing was fair and there were no surprises. Itโ€™s hard to find honest and reliable HVAC companies these days, but James definitely delivered. Highly recommend for anyone needing HVAC repair or installation!
it was one of the best experiences we have had as homeowners and we have been for 33 years and have had a few not so good. We were recommended and were told Universe was the best and we have to agree. Explained everything from the start, getting fininacing easy; they showed up when they were suppose to; cleaned up after it was definetly a 5 star experience. One more thing the workers could not have been more pleasant.
Very nice and knowledgeable. Frank went above and beyond!
Will was awesome!
Thank you for helping us replace our old system. Great job!
On time, professional and thorough.
A job well done!
Carl is the best He is efficient and clean very personable and comes quick and gets the job done with my oil burner
Nick was great. Above and beyond.
Bob Grillo the serviceman from Universe was very professional and found our issues with our AC unit rather quickly. I would absolutely ask Universe to send Bob Grillo to do any future repairs if ever needed. Universe kept us informed from the minute we made our appointment through completion. It is very helpful to give notice of the technician being on his way so we did not have to sit around waiting for him to arrive in a time window. Great service!
The technician was professional, friendly, knowledgable and informative.
David and Ryan and Bryan did a fantastic job with the rewiring of my house. They cleaned up and made things very easy
Frank B was on time, professional, very knowledgable and friendly. He examined my furnace and gave recommendations and options for an oil to gas conversion. I was happy with the service he provided and would highly recommend
Bob Grillo was a fantastic technician . Bob shared information about my air conditioning and heating systems that I was not aware of.
In general, Universe has been great. Highly recommended!!
We have a service contract with Universe for our burner and ductless air conditioners both of which universe installed. The install staff and maintenance are always prompt, knowledgeable and nice.
Ryan was very thorough and performed the included maintenance on my HVAC
System. Price was included in my warranty on installation.
Came within 6 hours from my initial phone call. Very knowledgeable about the ac unit. Repair was done. Very polite and professional.
The technician was on time and very patient to answered all my questions, and gave me some professional opinion/experience about our central AC.
Anthony explained the problem and how to avoid it going forward. He was very knowledgeable and professional, pleasant and kind!

Universe Home Services service vehicle for local home repairs

(516) 473-0202

What a New Boiler Changes in Your Home

A new boiler in a Long Island home does more than just heat reliably.

Oil prices on Long Island are among the highest in the country, and a boiler that has aged past its efficiency rating is burning more fuel per BTU than it should. A high-efficiency replacement produces the same heat for significantly less fuel. That difference shows up on every delivery invoice through the winter.

Older boilers that have lost pressure regulation or are working against corroded piping and clogged baseboards cannot distribute heat evenly. A replacement, combined with a system flush and balancing, restores consistent heat across every zone. The rooms that have always run cold get addressed at the source.

A boiler past 20 years with recurring failures is not a maintenance problem. It is a replacement problem that has not been solved yet. A new system with a manufacturer warranty behind it ends the annual guesswork about whether this is the winter it finally gives out for good.

Long Island still has a large stock of oil-heated homes, and boiler replacement is when most homeowners decide whether to stay on oil or convert to gas. Universe handles the full oil-to-gas conversion: new gas boiler, gas line connection, and removal of the old oil equipment. If gas is available on your street, replacement is the right time to evaluate the switch.

Why Nassau and Suffolk County Homeowners Choose Universe

Boiler replacement is not a job where you want to find out after the fact that something was done wrong.

Boilers are not a job to hand to someone unfamiliar. Here is why Nassau and Suffolk County homeowners keep calling Universe.

Cast iron boilers, gas boilers, oil boilers, steam systems in older homes: your technician has worked on all of it across Nassau and Suffolk County. Long Island’s older housing stock means unusual configurations come up regularly, and your technician is not encountering them for the first time.

Universe has been replacing boilers in Levittown, Hicksville, Massapequa, and across Nassau and Suffolk County since before most of the current housing stock was built. That history is not a marketing line. It is the reason homeowners call us back.

The estimate is free and covers your existing system, piping condition, fuel source, and all available replacement options. You know what you are looking at before you commit to anything.

Boiler replacements frequently surface related work: zone valve replacement, circulator pump issues, or electrical connections that need attention before the new system can run correctly. Universe covers all three trades. You do not need to bring in a second contractor.

Boilers fail in the coldest weather. Universe provides same-day boiler replacement when heat cannot wait, with emergency availability around the clock across Nassau and Suffolk County. Farmingdale, Bellmore, Huntington, Babylon: same response time everywhere.

National Grid rebates apply to many boiler installations on Long Island, particularly oil-to-gas conversions and high-efficiency upgrades. Universe identifies what your installation qualifies for and handles the paperwork. You do not track down the forms yourself.

After your boiler is in and running, Universe is still your contact. Seasonal questions, service needs, zone balancing adjustments: the same company that did the installation is the one you call.


Keep Your Boiler Running with the Home Comfort Club

A new boiler is a significant investment in your home’s heating system.

Boiler problems that become mid-winter emergencies usually start small: a pressure relief valve showing early wear, a circulator pump running louder than it should, sediment in the system that has not been flushed.

The Home Comfort Club schedules a heating system visit every fall, before the season begins, so those issues get caught before they become failures. Members also get priority scheduling, a discount on service work, a credit toward a new system installation, and no dispatch fee when work is performed.

Contact us to learn what the membership covers.

Green Universe Van parked on the side of residential street


(516) 473-0202

When Boiler Replacement Makes More Sense Than Repair

Boilers last. But not forever. Here is what tells you the end is close.

Boilers on Long Island typically last 20 to 25 years, though oil boilers in homes near the coast often show accelerated wear from salt air and variable oil quality. A boiler past that window is not simply less efficient. Every winter it runs, the risk of a failure during the coldest stretch of the season increases.

A boiler that requires frequent pressure top-offs has a problem that a repair is unlikely to solve permanently. It points to a failing expansion tank, a compromised pressure relief valve, or a leak somewhere in the system. At a certain age, fixing one component leads directly to the next failure.

Uneven heat in a home with baseboard hot water heat usually traces back to the boiler or the distribution system. Corroded or air-locked zones, a boiler that can no longer maintain adequate water temperature, or a circulator pump that has lost capacity all produce the same result. A replacement, done correctly, addresses the root cause.

When oil consumption goes up with no change in how the home is heated, the boiler’s combustion efficiency has degraded. On Long Island, where oil prices swing significantly and deliveries are a fixed cost of the season, that inefficiency compounds quickly.


Other Services You May Need


Schedule Your Boiler Replacement

Replacement on your schedule beats replacement in an emergency. Contact Universe Home Services to schedule your free boiler replacement consultation.

We evaluate your existing boiler and distribution system, explain every replacement option, and confirm pricing before the job is scheduled. Contact us online or call to get on the schedule.

Universe Home Services Technician near open van doors


Frequently Asked Questions

How is a boiler replacement different from a furnace replacement?

A boiler heats water and distributes it through baseboards or radiators throughout your home. A furnace heats air and moves it through ductwork. Replacing a boiler involves working with the piping, circulator pumps, zone valves, and expansion tank in addition to the unit itself. It requires a technician who knows hydronic heating systems specifically, not just general HVAC equipment.

How long does a boiler last on Long Island?

Most boilers last 20 to 25 years under normal conditions. Oil boilers in coastal Nassau and Suffolk County areas can show wear sooner due to salt air exposure and the variability of heating oil quality. A boiler that has been maintained consistently on an annual schedule will generally reach the upper end of that range.

Should I convert from oil to gas when I replace my boiler?

For most Long Island homeowners, replacement is the right time to evaluate the switch. Natural gas eliminates oil delivery schedules, removes the storage tank from your home, and removes your exposure to oil price volatility. Universe handles the complete conversion: new gas boiler, gas line connection, and coordination on removing the old oil equipment. If gas service is available on your street, the economics of converting almost always favor making the change.

Will my baseboards and radiators work with a new boiler?

In most cases, yes. Your existing distribution system is evaluated during the in-home assessment. Baseboards that are in good condition and properly sized will work with a new boiler. If zones have corroded, air-locked, or are undersized for the new system’s output, that gets identified before the installation so there are no surprises after the new boiler is in.

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