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Best boiler installation pros near Shoreham, NY

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TRUSTED BY SHOREHAM, NY HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.2k+
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Shoreham - 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 Shoreham, 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

3 neighbors recently requested a quote
Recommended by96%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 Shoreham, 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 KS Mechanical Services Corp
KS Mechanical Services Corp
4.8(
18
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Shoreham, NY and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

At KS Mechanical Services we take great pride in our experience, expertise, quality and customer service we provide to meet the consumer?s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. KS Mechanical's expertly trained staff will work with you to design new systems for your home or office to keep within your budget. Our reputation is based on service, safety and quality, regardless of how large or small the job. **10% SENIOR CITIZEN DISCOUNT **FREE ESTIMATES FOR NEW INSTALLATIONS AND REPLACEMENTS **FINANCING AVAILABLE

1 neighbors recently requested a quote
Recommended by64%of homeowners
Absolute Zero Air Conditioning & Heating
4.8(
100
)
Gas Boiler or Radiator Heating System - Install

Serving Shoreham, NY and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"I highly recommend Absolute Zero. Kyle didnâ t try to sell me upgraded equipment, he sold me what works sufficiently and what he would install in his house. I got a few quotes for the central AC and his price was the lowest. Installed in the attic that will be renovated into a room, he worked with me and planned and installed the air handler unit and all the ductwork where heâ d leave the center of the room open and did a great, clean job. He said the AHU upstairs and condenser unit outside would be quiet, I was shocked at how quiet everything was. He protected furniture and floors while they worked and left the house clean and tidy after leaving. Iâ m extremely pleased with the work and have already referred him to others."
Response time7 hrs
8 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Elm Air Conditioning Corp
Elm Air Conditioning Corp
4.4(
82
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+1 more

Serving Shoreham, NY and surrounding areas

Approved

In business since 1952

Free estimates

Warranties offered

"As a Full-Service Contractor and Residential Builder in Nassau County, we at HOMEREDI have relied on the Expert Team of Technicians and Installers from ELM Air Conditioning in Freeport Long Island for all of our discerning Clients HVAC requirements. The entire staff from the Operating Owners to every individual member are always willing to push the envelope forward when it comes to meeting our deadlines and delivering a superb product in a timely fashion. Not only we team up with ELM but we also capitalize on their vast reach and knowledge for our own residential air conditioning Service installation and continued maintenance Service. We highly recommend ELM Air conditioning not only to our Clients but to our Neighbors across the Island."
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14 neighbors recently requested a quote
Recommended by77%of homeowners
Samsons Plumbing Heating & Air
4.7(
9
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Shoreham, NY and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

With over 20 years experience, Samsons Plumbing Heating & Air has the knowledge and expertise for all of your heating and cooling needs. We pride ourselves in quality work and pay close attention to details. Call today for an estimate.

Recommended by100%of homeowners
Tri Seasonal Plumbing, Inc.
New to Angi
Oil Boiler or Radiator Heating System - Install

Serving Shoreham, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n

Avatar for The Boiler Guy, Inc.
The Boiler Guy, Inc.
4.1(
31
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Shoreham, NY and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"I've had Dave service our home heating system for many years now, and certainly agree that the service / combined with the experience Dave provides is outstanding. I highly recommend Dave and the "The Boiler Guy"!"
Response time4 hrs
Recommended by84%of homeowners
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Install Boiler FAQs, answered by experts

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

The radiators closest in proximity to the boiler heating system will heat up first. Radiators in rooms farther away from the boiler will take longer to heat up and may be the coolest rooms in the house. The radiator unit itself should heat up evenly; otherwise, there may be trapped air inside it.

It can take anywhere from four hours to three days to replace a boiler with a new one. How long your particular boiler installation takes will depend on whether you need a gas line installed and if you’re switching to a new boiler system. 

Replacing a combination boiler or standard boiler with the same system should only take four to six hours. Meanwhile, switching from a conventional boiler system to a combination boiler system could take a few days.

A furnace is a big unit where gas, heating oil, or electricity heats the air. The warmed air is then pushed back out through ducts and vents. 

A boiler uses electricity, heating oil, or gas to heat water that is pushed into the room through a radiator. This is one of the oldest and most effective ways to heat a house, but radiators can also be unsightly and leave hot and cold spots in the room.

Heat pumps use a refrigerant to move heat from outside into the house and return it to the room through ducts and vents.

If you're often struggling with radiator issues like chilly spots, leaks, or annoying noises, those are common indications that your radiator may need to be replaced. Corrosion, uneven heating, and persistent hissing sounds are common issues as well. When repairs become a regular chore and your home’s energy bills start to rise, a new radiator will bring the comfort and savings you need.

The Shoreham, NY homeowners’ guide to boiler installation services

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