Professional and thorough workmanship while replacing boiler. Answered all of my questions and explained features of the new unit.

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There are 42 highly-rated local boiler repair pros.
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TRUSTED BY NESCONSET, NY HOMEOWNERS
4.5
Average homeowner rating1.2k+
Verified boiler repairs reviews
Verified Reviews for Boiler Repair pros in Nesconset, NY
Last update on October 13, 2025
- Douglas B.
- Jon G.
Installed tank incorrectly, refused to repair 2 months later
- Donald J.
Extremely satisfied with the service. I thought I would have needed a new water heater but the technician was able to find the leak on the heating element and then repaired. I also had them perform their complimentary walk through of the home and they did point out 2 toilets which had been...
- Christopher K.
Fantastic. Price was fair, Brad Decatur was prompt, polite, and knowledgeable. He completed the boiler install in 1 day as promised, including winterization and system testing. I highly recommend Decatur Heating Services, and WILL be using them again.
- David M.
3 months later it stopped working. The repair guy came and said there was air in the pump because the installers only put one oil line in where they were supposed to put two. The second line is literally hanging. He said the air might be a freak thing and that the second line might not be...
- Margaret S.
Sunday morning I turned the heat on . . . but there was no heat. I researched Angie's List and found Big Apple Plumbing & Heating in Middle Village. I called them Monday morning before 9a, and by 1:15p, the same day, they arrived, diagnosed the problem, fixed the problem, and left by 2:15p....
Find Boiler repair pros in Nesconset

Triple H Insulation
Triple H Insulation
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
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
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
"The Honest Cesspool Company was fantastic from start to finish. Joe answered my call within minutes, showed up right on time, and his team worked quickly while keeping everything clean and professional. He took the time to explain the process and made sure the job was done right — no surprises, no upselling, just honest, quality work. It’s nice to find a company that truly lives up to its name. I’ll definitely use them again and recommend him to anyone who wants reliable service they can trust."
TJ D on October 2025
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
"The Honest Cesspool Company was fantastic from start to finish. Joe answered my call within minutes, showed up right on time, and his team worked quickly while keeping everything clean and professional. He took the time to explain the process and made sure the job was done right — no surprises, no upselling, just honest, quality work. It’s nice to find a company that truly lives up to its name. I’ll definitely use them again and recommend him to anyone who wants reliable service they can trust."
TJ D on October 2025

Universe Home Services
Universe Home Services
Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!
"This was the worst experience i have ever had with a company. They came and damaged my house and kept us without AC for days. They admitted to the extensive damage and went weeks before attempting to repair it. The services were never fully completed and they were paid over 90% of the job. I disputed the last 10% and provided overwhelming evidence of their negligence. And after a year their last ditch effort was to send collections letters. Don't walk, RUN from this company. I will provide pics and my my experience to anyone who is planning on using this company. Used to be family owned and was amazing. Second they sold it went downhill fast."
Marshall R on June 2025
Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!
"This was the worst experience i have ever had with a company. They came and damaged my house and kept us without AC for days. They admitted to the extensive damage and went weeks before attempting to repair it. The services were never fully completed and they were paid over 90% of the job. I disputed the last 10% and provided overwhelming evidence of their negligence. And after a year their last ditch effort was to send collections letters. Don't walk, RUN from this company. I will provide pics and my my experience to anyone who is planning on using this company. Used to be family owned and was amazing. Second they sold it went downhill fast."
Marshall R on June 2025

AR AIR CORP
AR AIR CORP
AR Air has been proudly serving our community since 1999, providing top-quality heating, cooling, and appliance services. We specialize in AC, heating, and water heater solutions, and we’re a Fujitsu Elite contractor for ductless systems. Our expertise also includes rooftop package units, PTAC units, humidifiers, and WiFi thermostats, along with repairs and maintenance on all refrigeration systems.
"Ralph looked over everything thoroughly and gave us an estimate. He came to do the repairs in less than a week. Ralph explained everything concisely and was happy to answer any questions. He is very knowledgeable, reliable, and careful. We have older units that were difficult to take apart and put back together; however, Ralph knew exactly what to do and handled the problem easily. He was very professional, careful of his surroundings, and cleaned up afterwards. He even helped us move some of the furniture back, which was unexpected and kind. Both my wife and I were impressed by his superior service. To top it off, Ralph is a great person! We are delighted with the wonderful job that he did. Highly recommend!"
Gary L on August 2025
AR Air has been proudly serving our community since 1999, providing top-quality heating, cooling, and appliance services. We specialize in AC, heating, and water heater solutions, and we’re a Fujitsu Elite contractor for ductless systems. Our expertise also includes rooftop package units, PTAC units, humidifiers, and WiFi thermostats, along with repairs and maintenance on all refrigeration systems.
"Ralph looked over everything thoroughly and gave us an estimate. He came to do the repairs in less than a week. Ralph explained everything concisely and was happy to answer any questions. He is very knowledgeable, reliable, and careful. We have older units that were difficult to take apart and put back together; however, Ralph knew exactly what to do and handled the problem easily. He was very professional, careful of his surroundings, and cleaned up afterwards. He even helped us move some of the furniture back, which was unexpected and kind. Both my wife and I were impressed by his superior service. To top it off, Ralph is a great person! We are delighted with the wonderful job that he did. Highly recommend!"
Gary L on August 2025

Herber Plumbing & Heating Corp.
Herber Plumbing & Heating Corp.
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
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

JB Comfort Heat and Air Conditions
JB Comfort Heat and Air Conditions
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!!
"Joe is so helpful and easy to work with! Glad to have met him, will be using his services moving forward."
Taryn P on October 2025
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!!
"Joe is so helpful and easy to work with! Glad to have met him, will be using his services moving forward."
Taryn P on October 2025
Mr. Flushington
Mr. Flushington
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
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

Natural Breeze LLC.
Natural Breeze LLC.
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

Flush Busters
Flush Busters
Full service plumbing company doing new construction and home service including 24/7 emergency service. No hot water at 1am? Call us. No heat at 3am? Call us. Clogged toilet on a Sunday? Call us. Frozen pipe in a blizzard? Call us. Flooded house? Call us. Slab leak? Call us. "A hot shower no matter the hour" we love to say! All of our work is warrantied for 1 year (with longer warranties available) which includes bot only the work but the parts and material as well. We wear booties and/or remove shoes in your home, always! Call us for all of your plumbing problems if you want somebody that you can trust and can ask hundreds of questions without an impatient technician losing his cool. Because we are there to HELP and we are at your service!
"Victor responds quickly and gets the job done for a fair price. I would definitely use him again!"
Jerold M on September 2025
Full service plumbing company doing new construction and home service including 24/7 emergency service. No hot water at 1am? Call us. No heat at 3am? Call us. Clogged toilet on a Sunday? Call us. Frozen pipe in a blizzard? Call us. Flooded house? Call us. Slab leak? Call us. "A hot shower no matter the hour" we love to say! All of our work is warrantied for 1 year (with longer warranties available) which includes bot only the work but the parts and material as well. We wear booties and/or remove shoes in your home, always! Call us for all of your plumbing problems if you want somebody that you can trust and can ask hundreds of questions without an impatient technician losing his cool. Because we are there to HELP and we are at your service!
"Victor responds quickly and gets the job done for a fair price. I would definitely use him again!"
Jerold M on September 2025

Cs mechanical inc
Cs mechanical inc
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
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
FAQs for boiler repair projects in Nesconset, 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.
The Nesconset, NY homeowners’ guide to boiler repairs
From average costs to expert advice, get all the answers you need to get your job done.
Discover the factors influencing air duct replacement cost. Learn how to save money and make an informed decision for your home's comfort.
When it’s time to replace the furnace, review this guide for new furnace costs based on type, size, and efficiency, plus furnace installation costs.
Gas furnace replacement costs depend on the type of furnace you want and installation fees. Our guide explains all the factors involved in a new furnace cost.
Does your furnace need a tune up? Use this furnace maintenance checklist to keep things running smoothly.
Keeping your home cool all summer can be a challenge. Read on to learn the pros and cons of dual-home air conditioners.
If you use a heat pump for warming your home, you’ll want to understand when to use the different modes for emergency heat vs. heat.
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