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TRUSTED BY COMMACK, NY HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon3.6k+
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in Commack, NY

*The Angi rating for Boiler Installation companies in Commack, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

*The HomeAdvisor rating for Boiler Installation companies in Commack, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

Last update on February 08, 2026

Find Boiler installation pros in Commack

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)

Serving Commack, 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."
Additional Photos
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+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for AR AIR CORP
AR AIR CORP
4.9(
78
)

Serving Commack, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"Ralph was a very nice guy and informed me on exactly needed to be done with the boiler..I felt his price was fair and would hire him again"
Heating and Air Conditioning Project
Heating and Air Conditioning Project
Heating and Air Conditioning Project
Heating & A/C Project
Installation of Merv13 Pleated filters I’m order to comply with State regulations.

+173

Response time9 hrs
Response rate87%
7 neighbors recently requested a quote
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Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.6(
68
)

Serving Commack, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Tom was terrific....repaired boiler....cost reasonable.....explained everything so clearly so that even this 88year old understood it....experience with company from start to finish was a pleasure"
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+13

Response time3 days
12 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for N. H. Ross, Inc.
N. H. Ross, Inc.
4.7(
191
)

Serving Commack, 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
4 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Rapid Plumbing Service, Inc.
Rapid Plumbing Service, Inc.
4.5(
452
)

Serving Commack, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"they bent over backwards to explain all options, no surprises, cleaned up the work area and removed all the pieces they replaced ( heater, boiler, etc.)."
american standard tub
007 ciculators
kitchen faucet pull out spray
amican standard
american standard

+137

Response time5 hrs
3 neighbors recently requested a quote
Recommended by79%of homeowners
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Avatar for Varsity Home Service Company, Inc.
Varsity Home Service Company, Inc.
4.4(
242
)

Serving Commack, NY and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"I will have the new boiler installed in April 2021. We were visited by Eric from Varsity and he went into detail about the project. He is a wonderful person. I can't wait till April!"
Shower Fixtures
Installation
Truck
Best of L.I. Winner 2024
Angi 2022 Super Service Award Winner

+86

Response time11 hrs
91 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for Professor Pipes
Professor Pipes
5.0(
18
)

Serving Commack, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"We were fortunate enough that we had Mike, who assisted in completing the installation of an ACiQ HVAC system that had been attempted but failed by another business. He was able in getting this highly automated, fully computerized, next-generation modell ACiQ HVAC system up and running. Iâ d like to emphasize that multiple companies refused the installation claiming that this system was too complex and they have no experience. Mike took the time to look into it, understand it and make it work. Excellent job, I would highly recommend him."
Response time7 hrs
Response rate88%
2 neighbors recently requested a quote
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Avatar for JB Comfort Heat and Air Conditions
JB Comfort Heat and Air Conditions
4.6(
52
)

Serving Commack, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Thank you for your service I was very happy with the change of the thermostat and maintenance of the boiler, it was very punctual and organized in your work I would recommend it without problem, very good work."
Condenser cleaning
Condenser cleaning
Additional Photos
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+11

Response time9 hrs
4 neighbors recently requested a quote
Recommended by80%of homeowners
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Avatar for MassAir
MassAir
4.9(
64
)

Serving Commack, NY and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Joe and his crew installed a whole-house humidifier on my furnace. They got the job done quickly and at a fair price"
Furnace
Ductless mini-split
Air Handler
Condenser
Condenser

+9

Response time3 hrs
10 neighbors recently requested a quote
Recommended by96%of homeowners
Request Quote
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Install Boiler questions, answered by experts

Always consult your manual for specific pressure numbers. Many expansion tanks come pre-pressurized at a specific PSI range, anywhere from 12 to 40 PSI, designed for a range of home boilers. You should not have to pressurize an expansion tank yourself, only the boiler system. If your system has a tank that needs to be manually pressurized, this is generally a job for professionals and their tools.

Yes. Boilers need water to run without overheating, also known as dry firing. If you run it without a sufficient volume of water, either because of a burst pipe or a leak, you run the risk of damaging your machine or jeopardizing the safety of your home as a whole. When in doubt, shut off your boiler and repair any plumbing issues before turning it back on. Alternatively, consider installing a low-water cutoff (LWCO) before any issues arise. This gadget will protect your boiler by monitoring water levels and automatically shutting it off if it gets too low. 

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. 

If you go to turn it counterclockwise and it won’t turn anymore, it’s open. Like most other valves, you should be able to turn a radiator valve counterclockwise (to the left) to open it and clockwise (right) to close it. To close a radiator valve, turn it clockwise until you meet some resistance and can’t turn anymore, but do so carefully to avoid breaking the valve.

A home radiator works by using radiation and convection to transfer heat throughout your home. Electric radiators use metal to conduct heat and warm the air, which then rises to warm the room. Steam and hot water radiators work with a boiler and piping system to pump thermal energy throughout the home. Hot water radiators use a boiler to heat the water before circulating it to the radiator, while steam heating radiator systems convert the heated water to steam before circulating it out. When the water or steam cools, it travels back to the boiler to be heated again.

The Commack, NY homeowners’ guide to boiler installation services

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

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