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Noritz Service & Repair

Noritz Boiler & Tankless Service, Repair and Installation on Long Island

Got a Noritz on the wall? You’re in good hands — and good luck finding many shops on Long Island who’ll say that.

Here’s the situation with Noritz around here: it’s a genuinely well-built Japanese machine — Noritz has been making tankless water heaters longer than almost anyone on the planet — but its installed base on Long Island is smaller than Navien’s. So when a Noritz owner in Nassau or Suffolk needs service, they start calling around and hear the same thing over and over: “we don’t really work on those.” The unit isn’t the problem. The bench is.

I’m Louie the Boiler Man, out of Baldwin. Condensing combi boilers and tankless water heaters are my specialty — it’s what I install, service and repair every single day. The combustion systems, the descaling, the condensate handling, the venting rules: this technology is the same discipline across brands, and my shop works on Noritz combi boilers and tankless units across all of Long Island — Nassau, Suffolk, and into Queens and Brooklyn.

For superior heating services on Long Island or in NYC, call us today at (516) 377-5200.

What we do for Noritz owners

Repair — no hot water, temperature swings, error codes, ignition problems, leaks, pump and valve issues on combi units
Annual maintenance and descaling — the full flush with descaling solution, filter cleaning, combustion check and condensate service every tankless on Long Island needs yearly
Error code diagnosis — call or text us the code and get a straight answer about whether it’s a cleaning, a part, or nothing to worry about
New installations — Noritz combi boilers and tankless water heaters, sized and vented to spec
Second opinions — if another shop told you the unit is dead or ‘can’t be worked on,’ let us look before you spend thousands

Long Island water and your Noritz

Whatever the logo on the front, every tankless and combi unit on Long Island fights the same enemy: minerals in the water. Scale builds up inside the heat exchanger year after year — quietly at first, then as temperature swings in the shower, weaker flow, kettling noises, and eventually error codes and lockouts. The fix is boring and effective: an annual descaling flush with proper solution, done with enough circulation time to actually dissolve the buildup. We do it as a complete service — flush, filters, burner inspection, combustion test, condensate trap, code history — so the unit leaves the visit running like it should, not just rinsed.

Noritz vs. Navien — the honest take

People ask, so here it is. Navien has the bigger footprint on Long Island — more units installed, more parts on more trucks. Noritz is every bit a serious manufacturer, with decades of tankless engineering behind it and a strong reputation, especially on the hot-water side. We install and service both, which means our answer isn’t loyalty to a logo — it’s what fits your house, your gas line, your venting and your budget. And if you own a Noritz today, the smart move is usually to keep it healthy, not to swap brands over a fixable problem.

If your Noritz is beyond saving

It happens — usually after years of skipped maintenance let scale do permanent damage. When a unit truly is done, we’ll show you why, then lay out both roads: a new Noritz that reuses your existing venting and piping where possible, or a switch to another brand if the math favors it. Real numbers for both, and the choice stays yours.

All of Long Island

Our shop is at 997 Merrick Road in Baldwin, and for Noritz work we cover the whole island — all of Nassau and Suffolk, plus Queens and Brooklyn. South Nassau calls are usually same-day; for the rest of the island we’ll give you an honest arrival window when you call. Call or text 516-377-5200, or text a photo of your unit and the error code to (917) 468-2325 — that photo usually cuts the diagnosis time in half.

Frequently asked questions

Do you repair Noritz combi boilers and tankless units on Long Island?

Yes — repair, annual maintenance with descaling, and full installations, across Nassau and Suffolk. Condensing combi and tankless technology is our daily work, and that expertise carries across brands.

How often does a Noritz need to be descaled on Long Island?

Once a year. Long Island water carries enough minerals that scale builds inside the heat exchanger every season, whatever the brand. An annual flush keeps the temperature steady, the flow strong, and the warranty conversation simple.

My Noritz is flashing an error code. What should I do?

Note the code, then call or text it to 516-377-5200. Some codes point to scale or a dirty filter and clear with a proper service; others mean a component needs attention. Either way you get a straight answer before anyone touches the unit.

Noritz vs Navien — which is better?

Both are serious tankless manufacturers with strong condensing combi lines. Navien has the bigger installed base and parts network on Long Island; Noritz is a quality machine with a loyal following, especially for hot water. We work on both, so our recommendation depends on your home — not on which brand a shop happens to sell.

Do you install new Noritz systems?

Yes — combi boilers and tankless water heaters, sized properly, vented to spec, with the gas line and condensate handled right. Text a photo of your current setup for a same-day ballpark.

Can you replace my old Noritz with a different brand?

If that’s the right move, yes. Sometimes reusing the existing venting and piping makes staying with Noritz the economical choice; sometimes a swap wins. We lay out both paths with real numbers and you pick.

Our Long Island heating experts service, repair, maintain, and install Noritz tankless water heaters and combi boilers throughout Nassau, Suffolk, Queens, and Brooklyn. Contact us today to schedule a convenient appointment for your Noritz system.

WE DON'T LIKE TO BRAG

Read reviews from our satisfied customers.

Esteban I.
Esteban I.
Committed to doing the job well

Excellent professionals, committed to doing the job well. I am satisfied with their work and would recommend their services.
Satisfied Customer
Satisfied Customer
5 Star Company!

Thank you so much for showing up on-time and taking care and fixing my air conditioner! Very efficient company from appointment confirmations to easy bill pay notification. 5 Star Company!!
RoseAnn V.
RoseAnn V.
Very very happy

Wonderful company Great. Service. I would recommend this company to everyone. They did an awesome, amazing job. Very very happy
Daniel G.
Daniel G.
Next time I have an issue, he will be the first I call

Luis and company were absolute lifesavers today. AC died on me and with one quick call, was able to meet him at his office for the vital part I needed. He was nice enough to walk me through the easy ...
Edwin P.
Edwin P.
Looking forward to being a long time customer!

Great first experience!! Technician was knowledgeable & friendly. Took his time checking my system & explained things so that I could understand. Looking forward to being a long time customer!

WE DON'T LIKE TO BRAG

Read reviews from our satisfied customers.

Esteban I.
Esteban I.
Committed to doing the job well

Excellent professionals, committed to doing the job well. I am satisfied with their work and would recommend their services.
Satisfied Customer
Satisfied Customer
5 Star Company!

Thank you so much for showing up on-time and taking care and fixing my air conditioner! Very efficient company from appointment confirmations to easy bill pay notification. 5 Star Company!!
RoseAnn V.
RoseAnn V.
Very very happy

Wonderful company Great. Service. I would recommend this company to everyone. They did an awesome, amazing job. Very very happy
Daniel G.
Daniel G.
Next time I have an issue, he will be the first I call

Luis and company were absolute lifesavers today. AC died on me and with one quick call, was able to meet him at his office for the vital part I needed. He was nice enough to walk me through the easy ...
Edwin P.
Edwin P.
Looking forward to being a long time customer!

Great first experience!! Technician was knowledgeable & friendly. Took his time checking my system & explained things so that I could understand. Looking forward to being a long time customer!

RELIABILIABLE & QUALITY HVAC SERVICES

Our team always has your best interest in mind!

Guaranteed Quality

We aren't happy unless all of our customers are happy. We always stand behind our work, and don't leave the job until it's done right!

Fast, On Time Arrival

We pride ourselves on getting to you in a timely manner, every time! We aim to minimize stress so you can get back to your day.

24/7 Service

Seven days a week, our team is available for you in case of an HVAC or plumbing emergency! Call now to see how we can help.

Ask Us About Our Financing Options

We understand that some projects require additional assistance. Contact us for more information about our options. Assistance is available for new install and repair.

Ask Us About Our Financing Options

We understand that some projects require additional assistance. Contact us for more information about our options. Assistance is available for new install and repair.