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Long Island’s Trusted Boiler Installation & Replacement Experts

Long Island’s Trusted Boiler Installation & Replacement Experts

Louie The Boilerman AKA HVAC Papi has been keeping Long Island homes and businesses warm for over two decades.

From Nassau to Suffolk, families and property managers count on Louie’s certified team for reliable boiler installation, boiler replacement, and oil-to-gas conversions done right the first time.

When your heat matters most, you want the crew that shows up, knows the system, and stands behind the work — that’s Louie’s team.

Full-Service Boiler Installation — Any Brand, Any Type

Whether you need a high-efficiency condensing boiler, a traditional steam system, or a combi boiler for heat and hot water, Louie and his crew handle it all:

  • Gas, oil, or electric systems
  • Steam and hydronic (hot-water) boilers
  • Condensing and modulating high-efficiency units
  • Combi boilers for compact homes and apartments
  • Complete oil-to-gas conversions with all permits and venting handled
  • Residential and commercial installations throughout Long Island

Every project meets code, passes inspection, and is backed by workmanship you can trust.

Why Long Island Homeowners Choose Louie The Boilerman

  • Local experience: Over 20 years serving Long Island communities from Baldwin to Montauk.
  • Certified expertise: Licensed & insured, Navien-certified installer familiar with every major boiler brand — Weil-McLain, Burnham, Buderus, Peerless, Lochinvar, and more.
  • Personal attention: Louie personally oversees each installation — no call-center scheduling or rotating techs.
  • Speed & reliability: Same-day emergency installs available during heating season.
  • Clean, code-compliant work: Every install inspected, permitted, and guaranteed safe.

The Difference You Can Feel

Choosing the right installer isn’t just about hardware — it’s about peace of mind.

Louie’s mission is simple: get your heat running perfectly and keep it that way.

No upsells, no run-around, just clear answers and honest service from start to finish.

Common Reasons Long Islanders Call Louie

  • My boiler keeps shutting off or leaking
  • My heating bills are too high
  • I want to switch from oil to gas
  • My hot water runs out too fast
  • My old boiler is loud, inefficient, or failing
  • If any of these sound familiar, Louie’s team can help — fast.

What Customers Say

Satisfied Customer
Satisfied Customer
“They replaced our old oil boiler in one day. Clean, professional, and friendly service.”
Satisfied Customer
Satisfied Customer
“Louie and his team are the only ones I trust with my heating system.”
Satisfied Customer
Satisfied Customer
“Prompt, honest, and knowledgeable. They treat you like family.”
Satisfied Customer
Satisfied Customer
Real Long Island homeowners. Real results.

Ready to Stay Warm This Winter?

Ready to Stay Warm This Winter?

Don’t risk another cold night or a boiler breakdown.

Call Louie The Boilerman — your HVAC Papi for expert boiler installation, boiler replacement, and full oil-to-gas conversion across Long Island.

Serving: Nassau County • Suffolk County • Brooklyn border communities

CONTACT US

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.