Top-rated heating oil pros.

Get matched with top heating oil pros in Islip, NY

There are 13 highly-rated local heating oil pros.

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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon298
    Verified heating oil services reviews

Heating oil pros in Islip

Avatar for AR AIR CORP
AR AIR CORP
AR AIR CORP
4.92(
51
)
Approved Pro
AR AIR CORP
AR AIR CORP
4.92(
51
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
35 local quotes requested

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


Avatar for JB Comfort Heat and Air Conditions
JB Comfort Heat and Air Conditions
4.79(
39
)
Approved Pro
JB Comfort Heat and Air Conditions
4.79(
39
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
43 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

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


RVM Heating & Air Conditioning
48 Heyward St
New on AngiNew on Angi
Approved Pro
RVM Heating & Air Conditioning
48 Heyward St
New on AngiNew on Angi
Approved Pro
413 local quotes requested
5 years of experience

With over 5 years of experience, RVM Heating & Air Conditioning is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today! Free Estimates!

With over 5 years of experience, RVM Heating & Air Conditioning is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today! Free Estimates!


Avatar for Varsity Home Service
Varsity Home Service
1610 Ocean Ave
4.29(
82
)
Approved Pro
Varsity Home Service
1610 Ocean Ave
4.29(
82
)
Approved Pro
Customers say: Super punctual
209 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

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


Avatar for Charly normal plumbing & heating
Charly normal plumbing & heating
260 St John Street
5.00(
3
)
Approved Pro
Charly normal plumbing & heating
260 St John Street
5.00(
3
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Charly normal plumbing & heating is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Professional, reliable, timely, he performed his task and the customer had to be satisfied."

Frantz G on November 2023

Charly normal plumbing & heating is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Professional, reliable, timely, he performed his task and the customer had to be satisfied."

Frantz G on November 2023


Dan's Plumbing
13 Peters Blvd
5.00(
7
)
Approved Pro
Dan's Plumbing
13 Peters Blvd
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

At Dan Lezcano Plumbing we pride our ourselves in quality, value, and service! We are experts in our trade and will do our best to keep you as educated as we can on your particular project. We look forward to earning your business!

"Dan made this job so simple. Very professional and punctual. I would highly recommend this company. So nice to have hot water again!!! Thanks Dan!"

Sandra M on January 2023

At Dan Lezcano Plumbing we pride our ourselves in quality, value, and service! We are experts in our trade and will do our best to keep you as educated as we can on your particular project. We look forward to earning your business!

"Dan made this job so simple. Very professional and punctual. I would highly recommend this company. So nice to have hot water again!!! Thanks Dan!"

Sandra M on January 2023


Avatar for Carlos Home Improvement
Carlos Home Improvement
40 Ponder Lane
New on AngiNew on Angi
Approved Pro
Carlos Home Improvement
40 Ponder Lane
New on AngiNew on Angi
Approved Pro
15 years of experience
Free onsite estimate

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 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. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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 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. Our reputation is based on service, safety, and quality, regardless of how large or small the job.


Eyeris Industries LTD
PO Box 1112
New on AngiNew on Angi
Approved Pro
Eyeris Industries LTD
PO Box 1112
New on AngiNew on Angi
Approved Pro
19 years of experience

At Eyeris Industries LTD, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!

At Eyeris Industries LTD, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!


Avatar for Energywise, Inc.
Energywise, Inc.
2231 5th Avenue
New on AngiNew on Angi
Approved Pro
Energywise, Inc.
2231 5th Avenue
New on AngiNew on Angi
Approved Pro
40 years of experience
Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers 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. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers 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. Our reputation is based on service, safety, and quality, regardless of how large or small the job.


Avatar for Modern Home Improvement Services, Inc.
Modern Home Improvement Services, Inc.
31 Goshen Street
4.88(
4
)
Approved Pro
Modern Home Improvement Services, Inc.
31 Goshen Street
4.88(
4
)
Approved Pro
Customers say: True professional
15 years of experience
Emergency services offered

Modern Home Improvement Services, Inc. is committed to excellence in every aspect of our business. We strive to exceed customers expectations on every project. .With over 15 years of experience in the HVAC and Home Remodeling business MHIS Inc is a company you can trust to get the job done right at a fair price. MHIS is your one stop shop for all your home repair and maintenance needs IMPORTANT INFO ABOUT R22 AC SYSTEMS!!!! MOST HVAC companies will tell you incorrect information, not on purpose, but because they may not be familiar with all the available options. If you currently have an R22 HVAC system, 9/10 contractors will tell you, you need to replace the whole system because R22 is being phased out in 2020. They are correct about R22 being phased out BUT what they are not telling you is your system CAN be CONVERTED to the new R410A Refrigerant opposed replacing your entire HVAC System. We offer New System Installation, And Existing Retrofits to help fit every budget

"From town permit application to installation and even cleaning up, the process went smoothly and 100% on schedule. They explained everything to us in detail and made us feel at ease. I can recommend their work to any friends!! Thanks Jimmy"

Misa K on November 2024

Modern Home Improvement Services, Inc. is committed to excellence in every aspect of our business. We strive to exceed customers expectations on every project. .With over 15 years of experience in the HVAC and Home Remodeling business MHIS Inc is a company you can trust to get the job done right at a fair price. MHIS is your one stop shop for all your home repair and maintenance needs IMPORTANT INFO ABOUT R22 AC SYSTEMS!!!! MOST HVAC companies will tell you incorrect information, not on purpose, but because they may not be familiar with all the available options. If you currently have an R22 HVAC system, 9/10 contractors will tell you, you need to replace the whole system because R22 is being phased out in 2020. They are correct about R22 being phased out BUT what they are not telling you is your system CAN be CONVERTED to the new R410A Refrigerant opposed replacing your entire HVAC System. We offer New System Installation, And Existing Retrofits to help fit every budget

"From town permit application to installation and even cleaning up, the process went smoothly and 100% on schedule. They explained everything to us in detail and made us feel at ease. I can recommend their work to any friends!! Thanks Jimmy"

Misa K on November 2024

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FAQs for heating oil service projects in Islip, NY

To buy heating oil for your house, contact local heating oil companies to compare prices and place an order once you decide on a supplier. The company will have to deliver your heating oil in a truck designed to carry and dispense heating oil safely. Call and order your heating oil early enough to have your oil delivered before you need to start using it for home heating.

On average, you’ll need about two gallons of oil per day to heat your house when it’s 50 degrees Fahrenheit outside. Most oil tank capacity is about 275 gallons, and heating your house with two gallons of oil per day will last about four and a half months. This consumption will vary depending on the climate and average temperature in your location. For example, if the winters are longer and colder where you live, you’ll probably need to refill your oil tank at least once to get through the winter.

You save money on heating oil in a few ways:

  • Make sure your home is well insulated and sealed against drafts and heat leakage.

  • Use a thermostat that’s working properly and calibrated accurately.

  • Increase energy efficiency by insulating your basement and attic.

  • Turn down your thermostat a few degrees.

  • Program your thermostat to lower the heat when you’re not home.

  • Order heating oil during the off-season when prices are likely to be lower.

Summer months tend to be when heating oil prices are lowest because of decreased demand. Buying heating oil during the off-season also prepares you for when the weather gets cold, and you need to start using the oil to heat your home. Although heating oil prices will fluctuate, it’s best to avoid purchasing between September and April, as that's the peak season for heating oil demand.

Overall, heating your home with an oil furnace tends to be less expensive than heating your home with an electric heating system. Oil heating systems stay warm for longer periods of time without drawing a constant electrical current to maintain a temperature. Plus, heating oil systems typically have a longer lifespan and lower price tag than their electrical counterparts, resulting in short- and long-term savings.

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