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Best boiler installation pros near Lloyd Harbor, NY

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    Average homeowner rating
  • Verified reviews icon2.2k+
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Lloyd Harbor - Updated Nov 2026

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Lloyd Harbor, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"I was very happy with my experience using this company. In the middle of a heat wave, right before the July 4th holiday, my AC stopped working. The man who installed it and had been servicing it was too busy to come for a week. I called MSD and was given an appointment for 8 AM the next morning. They were prompt and courteous, fixed my problem, and were reasonably priced. I will be calling them in the future."
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+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Heating & Cooling Pros, LLC
Heating & Cooling Pros, LLC
4.8(
117
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - Install+2 more

Serving Lloyd Harbor, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Mo is an up and coming Plumber but knows as much as someone whoâ s been in the industry for 30+ years. I had an old boiler that was 30 years old and While other plumbers tried to swindle me into purchasing a new boiler, Mo was â more than happy to take on a challenge.â To my surprise, he took on that challenge at very short notice and completed the work that same day. Some plumbers might claim that they canâ t work on the electrical part of the boiler but Mo can do both. I couldnâ t be happier. Thank you Mo!"
Response time4 hrs
20 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Arvada Mechanical Corp.
Arvada Mechanical Corp.
4.8(
18
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+1 more

Serving Lloyd Harbor, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"This Company is top notch! They quickly responded to my urgent message in regard to no heat in the house and had the service guy arrive to the door right after completing another job. They were very professional and did the repair in no time and price quoted over the phone was exactly what was charged for the service. We will definitely call this Company again for any boiler repairs. Thank you!"
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+4

Response time8 hrs
Recommended by87%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Lloyd Harbor, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Kevin was great! The rest of the company not so much. Kevin diagnosed the problem immediately as the thermostat, had a replacement in the truck, and completed the installation of the new unit quickly. He showed me how to program the updated version, and everything seemed to be fine - until the next morning. Turned out the replacement was defective. When I called, I was told that they might not be able to get back to me that day, but Kevin interrupted his schedule to come back and put in a new (and working) unit at no charge."
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+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Just Chillin HVACR, LLC
Just Chillin HVACR, LLC
4.9(
16
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Lloyd Harbor, NY and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Frank Green provided me an estimate for the installation of a mini-split single unit at my parentâ s home in Farmingdale. His two employees did a professional job. My parents are seniors who live with a full-time aide. They were respectful and accommodating. A day or two after the unit was installed, I reached out to Frank with questions on how to operate the unit and possibly moving it several feet. That same day, he had his employee return to my parentâ s home to discuss the matter further and to drop off another manual considered to be more user friendly which solved our issue. I would definitely recommend Just Chillinâ to other consumers."
West Islip
West Islip
West Islip
Farmingdale
Farmingdale

+7

Response time10 hrs
Response rate85%
Recommended by100%of homeowners
Avatar for N. H. Ross, Inc.
N. H. Ross, Inc.
4.7(
191
)
Gas Boiler or Radiator Heating System - Install

Serving Lloyd Harbor, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1976

Warranties offered

Small jobs welcome

"Vincent, the technician, arrived wearing a mask (pandemic times), observed social distancing, and was skillful and quick at performing the job. He took the time to explain the new thermostats to me and set them for me after I requested it. He cleaned up, left no mess. NH Ross installed my new boiler which is working great!"
Bathroom Makeover
Bosch Combination Boiler
Gas Conversion
Rinnai Gas Combi Boiler
Old conventional gas boiler

+2

Response time30 mins
3 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Varsity Home Service Company, Inc.
Varsity Home Service Company, Inc.
4.4(
244
)
Gas Boiler or Radiator Heating System - Install

Serving Lloyd Harbor, NY and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"We are very satisfied with the work done by Varsity. They showed up on time both times, clean work and very conscientious workers. Knowledgeable of our boiler. Highly recommended by us."
Shower Fixtures
Installation
Truck
Best of L.I. Winner 2024
Angi 2022 Super Service Award Winner

+86

Response time11 hrs
131 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Professor Pipes
Professor Pipes
5.0(
18
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install - For Business

Serving Lloyd Harbor, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Highly knowledgeable and extremely professional company with great customer service!! Mike was such a pleasure to work with His team of experts were always so helpful and skilled. Very, very easy to recommend this company to family and friends, as the entire two day project was a seamless and positive experience! It was a true pleasure in every aspect of this HVAC job Kudos to Mike and the Professor Pipes crew!"
Response time7 hrs
Response rate91%
1 neighbors recently requested a quote
Avatar for Benitez Plumbing, Heating & Cooling Systems
Benitez Plumbing, Heating & Cooling Systems
5.0(
13
)
Oil Boiler or Radiator Heating System - Install

Serving Lloyd Harbor, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Benitez Plumbing did an outstanding job on my oil hot water heater. The workers who came were professional neat and clean. Pricing for the work was very fair, I highly recommend this company to hire. I will continue using them going forward. What a great find in this company."
Response time8 hrs
Response rate89%
1 neighbors recently requested a quote
Avatar for MassAir
MassAir
4.9(
64
)
Gas Boiler or Radiator Heating System - Install

Serving Lloyd Harbor, NY and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"The company was very punctual and the owner of the company was hands on and involved to ensure the job is done right. They show years of expert experience in the field of HVAC. We replaced the central air unit and the difference in cold air output was unbelievably better after the install. They were very clean both doing the installation of the inside unit as well as the outside condenser unit. I will recommend them to all my friends who need their AC/Heating units replaced!"
Furnace
Ductless mini-split
Air Handler
Condenser
Condenser

+9

Response time3 hrs
15 neighbors recently requested a quote
Recommended by96%of homeowners
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Install Boiler FAQs, answered by experts

Many utility companies and government programs offer rebates or incentives for the installation of high-efficiency propane boilers. These can offset upfront costs and improve your return on investment. Check with your local utility or installer for current offers. Incentives vary by state and provider, so exploring regional programs can help maximize your savings.

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

The average cost to replace or install a new HVAC system is around $7,500. However, the price can range from $5,000 to $12,500, depending on factors like the size of your home, the type and brand of the unit, and your specific heating and cooling needs. If you only need to replace certain components, the cost will be lower; for example, a new AC unit can cost between $2,200 and $5,500, while a new furnace costs $3,200 to $6,000. If additional work like new ductwork is required, the total cost could be as high as $22,000. It's best to contact a local HVAC company for an accurate quote.

All modern boilers are condensing boilers because they’re the most efficient type. Instead of extra heat leaving through the flue, these boilers trap the heat and use it to heat the house. Whether you choose a combi boiler, system boiler, or regular boiler, you can opt to get a condensing system. If you have an old boiler that’s not a condensing boiler, it’s a good idea to get an upgrade.

Coolant and antifreeze are technically not the same thing. The difference between the two is the ratio of water to other chemicals. True antifreeze is mainly made up of either ethylene glycol or propylene glycol, while coolant comprises one part antifreeze and one part water. However, the terms coolant and antifreeze are often used interchangeably, even by pros.

The Lloyd Harbor, NY homeowners’ guide to boiler installation services

From average costs to expert advice, get all the answers you need to get your job done.