Should plumbers be certified or licensed?

<div>Yes, most states require plumbers to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations. As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: <ul><li>The owner, principal, or relevant manager passed a criminal background check</li><li>Required to have applicable state and local licenses</li><li>Maintain an average star rating of 3.0 or better on our network, if they have at least one review</li><li>Paying to advertise their services</li><li>Meeting any other eligibility criteria required by Angi</li></ul> Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.</div>

Should HVAC technicians be certified or licensed?

<div>Yes, most states require <a href="https://www.angi.com/articles/which-hvac-certifications-do-technicians-need.htm">HVAC technicians to be certified</a>, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations. As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: <ul><li>The owner, principal, or relevant manager passed a criminal background check</li><li>Required to have applicable state and local licenses</li><li>Maintain an average star rating of 3.0 or better on our network, if they have at least one review</li><li>Paying to advertise their services</li><li>Meeting any other eligibility criteria required by Angi </li></ul>Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.</div>

How much do plumbers typically charge?

<div><a href="https://www.angi.com/articles/plumber-cost.htm">The average cost to hire a plumber</a> is around $100 an hour but can vary between $45 and $200 an hour depending on the plumber’s experience and the repair that you need. It’s also important to note that these prices can go up on holidays, and emergency plumber rates average $150 per hour, in addition to a flat-rate trip fee of $100 to $350. </div>

Get matched with top boiler repair pros in Mount Sinai, NY

There are 47 highly-rated local boiler repair pros.

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TRUSTED BY MOUNT SINAI, NY HOMEOWNERS

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Verified boiler repairs reviews

Verified Reviews for Boiler Repair pros in Mount Sinai, NY

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

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

Last update on August 23, 2025

Reviewed in October 2021
Big Apple was great--they came when they said they would and managed to replace a broken boiler drain line without having to replace the low-water cutoff unit it was attached to, which would have been a much more expensive repair. I'd call them again.
Big Apple Plumbing and Heating Corp
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Reviewed in February 2015
Called at 8am with a broken boiler. It was 20* outside. They showed up at 10am. Serviced the boiler and got my heat back. He went out of his way to explain what was wrong. Price was very fair, especially for an emergency call.
ACCURATE UTILITIES
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Reviewed in November 2007
The company called us back immediately and it was a holiday. Joe showed up and was punctual and professional. He did the work to our satisfaction and was very knowledgeable. He gave us tips on how to maintain the boiler. The price was very reasonable. We will definitely call again.
A A L Gas & Oil Boiler Service Corp
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Reviewed in August 2014
Our boiler broke in the middle of winter. We were extremely fortunate that Mike was available to come to our rescue. He was punctual and professional and the work was completed in a timely manner. He was considerate to maintain a clean work environment. The price he quoted was the price we...
Mike Repairs
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Reviewed in February 2013
i awoke to no heat on a 20 degree day,after calling someone i had used before and received no return phone call, i checked Angies list and found Alcus. The woman who answered the phone was very nice and professional. and though i did not expect it, she said someone will be out that same...
Alcus Fuel Oil & Sons Inc
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Reviewed in December 2020
Bad! The 1st tech spilled rusty water & stained our white brick and left a boiler part on the grass which left a white burn mark . They came a week later to remove rust & then the boiler broke again ......after paying $900 for a part - a circulator . It was apparently a bad seal so the boiler...
NH Ross, Inc.
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Reviewed in December 2016
We woke up the day before Christmas Eve to discover a broken boiler. We called Green Apple based on recommendations here at Angie's List. We were not disappointed. Green Apple arrived promptly. They treated us courteously. Their communication---both on the phone and in person--- was excellent....
Green Apple Mechanical
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Reviewed in January 2019
It went great! Erik was quick to respond and communicative and was able to troubleshoot a multipronged issue successfully. So glad that he was able to help us! I would highly recommend him!
MECH Mechanical Engineering Cooling and Heating LLC
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Reviewed in July 2018
We called Mainstream plumbing at 6:30 am due to what we thought was a burst pipe. We had no water and had to get to work. Steve returned our call immediately, and was at our house by 8:15 am and fixed the issue on the spot. We are very grateful for his reponsiveness and will hire him again...
Mainstream Plumbing & Heating
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Reviewed in September 2012
After contacting Steve Basso Company to inspect my heating system they sent a technician on Friday 8/24/2012. Major problems with the boiler were detected and a meeting with one of the owners was scheduled for the same day. An inspection fee of $90 was paid. Scott came to the house the same day...
Steve Basso Plumbing Heating And Ac
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Boiler repair pros in Mount Sinai

Customers say: Quality work

Recommended by 90% of Angi customers

108 local quotes requested

Since 1999, woman-owned and operated Triple H Insulation has been providing Long Island customers with the most comprehensive home evaluation services with the utmost integrity and professionalism. We specialize in all aspects of Insulation and Air Sealing, including open and closed-cell Spray Foam, blown in and dense-packed cellulose, crawl space encapsulation and dehumidification. We can perform a free evaluation of your home from your basement or crawlspace to your attic. As a woman-owned company, we are committed to treating everyone with equal respect and focus on direct communication with all the household decision makers so each person is engaged in the process. Our skilled comfort consultants use building science principles to help our clients reduce energy costs and improve their homes' comfort. We hold a Gold Star designation from the Building Performance Institute (BPI.org) and our staff is Gold Star BPI certified. Triple H has Home Improvement Licenses in Suffolk, Nassau and NYC. See our great before and after photos on triplehcontracting.com.

"They are supposed to come tomorrow, they agreed on that. They called and told me that the job is too small and they refused to do the job. Meanwhile I described the job to the woman, the dimensions and the specifics and she agreed but still cancelled it."

Benny C on December 2021

The Honest Cesspool Company

The Honest Cesspool Company

Customers say: Quick response

Recommended by 100% of Angi customers

41 local quotes requested

Please consider us for any of your cesspool or drain issues. Make sure to save our number our coupon never expires! Check us out on Instagram for specials, discounts and additional ⭐️⭐️⭐️⭐️⭐️ reviews @thehonestcesspoolco

"Joe and his team are competent and easy to deal with."

Dave P on August 2025

"Joe and his team are competent and easy to deal with."

Dave P on August 2025

Customers say: Quick response

Recommended by 100% of Angi customers

34 local quotes requested

With over 15 years of experience, cs mechanical, Inc. is your trusted partner for all your plumbing and home improvements needs -Pipe repairs -New installation -Water Heaters -shower body’s -faucet and sink repair -Toliet install - wash machine install - dishwasher install

"Chris was very professional. He was on time and did a good job. I would use his services again and I would definitely recommend him."

Frank M on August 2025

"Chris was very professional. He was on time and did a good job. I would use his services again and I would definitely recommend him."

Frank M on August 2025

Customers say: Quick response

Recommended by 100% of Angi customers

52 local quotes requested

Heating and A/C business is locally owned and operated. We feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today! 631-652-8910

"Really happy with the work performed. Great communication, they arrived when they said they would, and quickly and successfully repaired the issue!"

Steven G on June 2024

Heating and A/C business is locally owned and operated. We feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today! 631-652-8910

"Really happy with the work performed. Great communication, they arrived when they said they would, and quickly and successfully repaired the issue!"

Steven G on June 2024

Herber Plumbing & Heating Corp.

Herber Plumbing & Heating Corp.

Customers say: True professional

185 local quotes requested

54 years of experience

Herber Plumbing & Heating Corp. has been trusted and recommended since 1971, and recognized for our superb service. We are family owned and operated, with guaranteed great service. Our company specializes in all types of work, but especially: Plumbing, Gas Heating, Drain Cleaning, Oil to Gas Conversions, NYS RPZ Testing to name a few things. Call & schedule your appointment today! 631-666-9315

"Didn't show up on day scheduled, failed to call. Replaced ~$100 part in about a half hour. Charge was $595"

Bruce M on April 2025

"Didn't show up on day scheduled, failed to call. Replaced ~$100 part in about a half hour. Charge was $595"

Bruce M on April 2025

JB Comfort Heat and Air Conditions

JB Comfort Heat and Air Conditions

Customers say: Quick response

Recommended by 97% of Angi customers

41 local quotes requested

I’m a US veteran that continue serving to the community by providing the best service in home repairs. I’m honest man if I can’t do, it I will tell you on the spot. I can fix many things; plumbing, Electrical issues, Decks, heating and Air conditioner, Power washing, Roof patching., Fences repair and install. Text me for free estimates!!

"Mr. Joe Buleje gave us Outstanding Service and Professionalism We want to take a moment to recognize Mr. JOE BULEJE for providing truly outstanding professional and exceptional service during our recent air conditioning repair. From start to finish, he was extremely helpful, friendly, and approachable, taking the time to explain everything clearly and answer all of our questions with patience and professionalism. What impressed us most was his deep knowledge and expertise, he diagnosed the issue, offered clear solutions, and ensured the system was running perfectly before leaving. It’s rare to encounter a technician who combines technical skill, attention to detail, and outstanding customer care at such a high level. His professionalism and dedication made what could have been a stressful situation feel completely manageable. He is a true asset to your company, and because of his service, we would gladly recommend your company to anyone in need of reliable heating and air conditioning support. Mr. JOE BULEJE is an excellent technician, and he went above and beyond to make sure our AC was working properly. He was prompt, polite, very skilled, and answered all our questions without getting frustrated. Truly a 10-star professional! My husband and I had a fantastic experience with this skilled technician. He provided top-notch service with a friendly attitude and really the quality of his work and professionalism deserves more than 5 stars so therefore we are giving him 10 STARS. If anyone is looking for an AIR AND HEATING TECHNICIAN HIRE MR JOE BULEJE. He is the BEST!!!! Ask for him by his name. We thank you Mr. Buleje ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐"

MARY A on August 2025

Customers say: Super punctual

203 local quotes requested

63 years of experience

Practice makes perfect, and Varsity has been at it for over half a century! What began with a Navy veteran’s simple dream — to teach the value of honest, hands-on work to his children — has grown into one of Long Island’s most trusted resource for plumbing, heating and air conditioning services. Varsity’s mission has always been clear: to serve our neighbors with integrity, solve home service challenges with innovative solutions, and provide lasting results. Our dedicated crew is background-checked, rigorously trained in the latest technology, and excited to exceed your expectations. Above all Varsity is here to EARN your trust—not just for today, but for years to come. Let’s tackle your home service needs with the quality and care you deserve!

"Varsity was super professional and wasted no time to resolve the problem will absolutely be using Varsity again and will be requesting Conner the man know his job thank you again Conner and varsity for the above and beyond service."

Vladimir S on July 2025

Customers say: Quick response

Recommended by 90% of Angi customers

35 local quotes requested

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Can't say enough good things about Nick. Fast communication, professional, friendly, honest advice (pointed out a few things while he was there, not upselling, just letting us know about potential future issues). Reasonable prices (more of a rarity these days). HIGHLY RECOMMEND!!!"

Edward H on February 2025

KS Mechanical Services

KS Mechanical Services

Customers say: Quick response

Recommended by 91% of Angi customers

219 local quotes requested

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

"Excellent! Exuded confidence a dedication.Lance did a great job. Very kind as well."

Sarah P on May 2025

"Excellent! Exuded confidence a dedication.Lance did a great job. Very kind as well."

Sarah P on May 2025

All Weather Heating & Cooling

All Weather Heating & Cooling

Customers say: Super punctual

Recommended by 91% of Angi customers

484 local quotes requested

All Weather Heating & Cooling has been serving Nassau & Suffolk County of Long Island since 1969. We are now celebrating 54 years of exceeding customer expectations. All Weather provides sales, installation, service and maintenance of residential and commercial heating, air conditioning & water filtration systems.

"They installed a minisplit cooling system, with 3 exchanges June 2021. Since then it is not operating the way it should. In my bedroom with the door closed at night on cool at 70 degrees the humidity goes up to 80%. I wake up uncomfortable, change it from cool to dry mode. The humidity will go down into the 50% range but the temperature drops down to 62 or less! So in cool or dry mode I can't get a good nights sleep! They come and look at it and tell me everything is fine. I'm going to buy a window air conditioner tomorrow which seems insane because i spent $10,000 on this minisplit AC system!"

JIM G on June 2023

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FAQs for boiler repair projects in Mount Sinai, NY

The average cost to install a new water heater is around $1,300, but you can expect to pay between $875 and $1,750, depending on the kind of water heater, the size of the unit, and the professional chosen to complete the work. Tankless water heaters can push your price higher, as installation is more complicated, with prices as high as $3,500. The location and accessibility of your water heater will play a role in the project cost, as those sitting in tight spaces like a crawl space will drive up your labor costs.

Yes, most states require plumbers to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations.

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:

The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:

The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

It is very difficult and dangerous to install your own water heater, so we strongly recommend against tackling this as a DIY project. Not only will you need to wire your water heater, but you’ll also need to connect plumbing to the intake and outlet. Sweating copper pipes and connecting wiring properly are skills most DIYers don’t have, and even if you do feel confident you can do it, working with water and electricity always leaves the potential for electrocution. Hiring a local water heater installer is well worth the investment.

The average cost to hire a plumber is around $100 an hour but can vary between $45 and $200 an hour depending on the plumber’s experience and the repair that you need. It’s also important to note that these prices can go up on holidays, and emergency plumber rates average $150 per hour, in addition to a flat-rate trip fee of $100 to $350.

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