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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon2.3k+
    Verified boiler installation services reviews

Find Boiler installation pros in Smithtown

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 Smithtown, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Everything went great. The crew arrived right on time and was very polite and professional. Ali explained everything beforehand and the work was done exactly as described. After installation there were some minor adjustments to be made and Ali responded right away and took care of the problem. He was also able to get the ducting corrected to a part of the house that hasn't had ac for many years. I was very pleased with Ali and his crew."
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+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.6(
68
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Smithtown, 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."
Additional Photos
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+13

Response time3 days
12 neighbors recently requested a quote
Recommended by94%of homeowners
C&A Mechanical
4.4(
77
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Smithtown, NY and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"I would highly recommend C&A Mechanical. They were efficient, polite & professional. The quote given was exactly what we paid, which was very reasonable and competitive to other quotes. Craig actually offered to come assess our leaky water heater before our scheduled appointment, which was so helpful and definitely a huge factor for this job being done sooner than it would have been. We will absolutely call them again for service if anything else in our house needs attention that they specialize in."
Response time10 hrs
2 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for RDS Plumbing and Heating
RDS Plumbing and Heating
4.7(
129
)
Oil Boiler or Radiator Heating System - Install

Serving Smithtown, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Small jobs welcome

Offers commercial services

"This plumber had taken over accounts from our previous plumber that moved out of State. Rich was a great help. He took initiative to start the warranty process for a Boiler that was totally corroded within 4yrs. Rich also did the demolition removal of the old unit and installed the new unit. All done in 1 day. Great customer service. We would absolutely use this guy again."
Response time7 hrs
Response rate85%
Recommended by56%of homeowners
Avatar for Elite Piping Solutions
Elite Piping Solutions
4.8(
49
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessElectric Boiler or Radiator Heating System - Install+2 more

Serving Smithtown, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"Billy and his crew were an absolutely pleasure to work with. They exceeded my expectation to replace my boiler and hot water heater along with associated piping in record time working in concert with the GC to complete all work in 3 days. The finished work was neat and clean correcting errors with my original installation. All debris was removed each day. He ensured I was satisfied, kept me informed of the progress and what to expect. Upon leaving he made recommendations to have all my air valves replaced in my radiators and encouraged me to call with any questions. I appreciate the care he and his crew took with my home."
Response time6 hrs
Response rate88%
7 neighbors recently requested a quote
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 Smithtown, 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 Varsity Home Service Company, Inc.
Varsity Home Service Company, Inc.
4.4(
242
)
Gas Boiler or Radiator Heating System - Install

Serving Smithtown, 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
96 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 Smithtown, 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 rate88%
3 neighbors recently requested a quote
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Install Boiler questions, answered by experts

No, boilers and water heaters are not interchangeable because they serve different primary functions. Boilers are used for central heating systems, providing hot water or steam to heat your home. In contrast, a water heater's purpose is to supply hot water for daily household use, such as for faucets and showers. A water heater alone cannot supply the warm water or steam needed for a central heating system.

While they are not interchangeable, it is common to have both a boiler and a water heater. In fact, a conventional boiler often works best when a water heater system is already in place. The two systems can be combined to provide both heating and hot water, either by pairing a boiler with an indirect water heater or by installing a premade combination boiler-water heater unit. For home heating, some homeowners may also opt for a furnace instead of a boiler.

Due to fuel line connections and venting complexity, professional installation is required for safety and efficiency.

Safety concerns with propane boilers include proper venting to prevent carbon monoxide buildup, secure gas line connections, and regular inspection of safety controls. Professional boiler installation and annual maintenance are essential to minimize risks. Having a carbon monoxide detector installed in your home is essential for early detection of any leaks or ventilation issues.

While you’ll pay more upfront for a brand-new HVAC unit, you can save money in the long run. Here’s how to save on your new HVAC system:

  • When purchasing a high-efficiency system, your energy bills will be lower in the future.

  • You may be eligible for special offers from your local energy company.

  • Depending on the system, you may be eligible for HVAC rebates and tax credits.

  • Choose to replace your air conditioning unit and furnace simultaneously to save on labor and installation costs. 

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 Smithtown, NY homeowners’ guide to boiler installation services

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