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TRUSTED BY CENTRAL ISLIP, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon275
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Central Islip

"Cole was great - punctual, reasonably priced, professional and personable. Did a very excellent job in our home. Would highly recommend!"

Jeanette F on October 2025

About 16 years

"Cole was great - punctual, reasonably priced, professional and personable. Did a very excellent job in our home. Would highly recommend!"

Jeanette F on October 2025


Just Rite Heating and Cooling

4.93(
122
)
Approved Pro

Just Rite Heating and Cooling

4.93(
122
)
Approved Pro
Customers say: Quick response
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
31 years of experience

We�re dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"I am not a review writer at all, however, I felt it only fair to write a review for Eric and Just Rite HVAC after a wonderful experience. This company and Eric the owner are, in a word, the BEST! I needed main floorâ s central AC replaced. A friend recommended me to Eric. I texted him and he responded with a few hours. setting up an appointment was fast and easy. Eric was knowledgeable and timely. My job was extremely difficult based on the location of my air handler and there was a high chance the ceiling would need to be opened for access. When Eric arrived for the job he inspected further and said he was going to try not to have to open the ceiling for access. He and his crew went well beyond what anybody else would have done and meticulously dismantled the old air handler piece by piece. It was time consuming, difficult and energy consuming. But they were able to do and saved me from having a gaping hole in my ceiling. They did an excellent job setting up the new air handler in the same location and even fixed errors the previous installer had made! The entire crew were highly professional, courteous and clean. They put down drop cloths everywhere and cleaned up everything when they were done. I highly, highly, and without reservation, recommend Eric and Just Rite HVAC and will tell anybody I know about them."

Anne D on July 2024

We�re dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"I am not a review writer at all, however, I felt it only fair to write a review for Eric and Just Rite HVAC after a wonderful experience. This company and Eric the owner are, in a word, the BEST! I needed main floorâ s central AC replaced. A friend recommended me to Eric. I texted him and he responded with a few hours. setting up an appointment was fast and easy. Eric was knowledgeable and timely. My job was extremely difficult based on the location of my air handler and there was a high chance the ceiling would need to be opened for access. When Eric arrived for the job he inspected further and said he was going to try not to have to open the ceiling for access. He and his crew went well beyond what anybody else would have done and meticulously dismantled the old air handler piece by piece. It was time consuming, difficult and energy consuming. But they were able to do and saved me from having a gaping hole in my ceiling. They did an excellent job setting up the new air handler in the same location and even fixed errors the previous installer had made! The entire crew were highly professional, courteous and clean. They put down drop cloths everywhere and cleaned up everything when they were done. I highly, highly, and without reservation, recommend Eric and Just Rite HVAC and will tell anybody I know about them."

Anne D on July 2024


Avatar for Comfort Ductwork Systems, Inc.

Comfort Ductwork Systems, Inc.

4.97(
67
)
Approved Pro

Comfort Ductwork Systems, Inc.

4.97(
67
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
21 years of experience

Contact us for all of your heating and air conditioning installs or replacements. We also do install and repair of boilers and furnaces. We service all of Suffolk and Nassau counties. We are a member of the Better Business Bureau, EPA certified, and a member of PSEGLI Cool Homes Contractors.

"We just got a new AC unit and oil furnace installed. We couldn’t be happier ! They were very professional from the start. They were so good with all the details and took away our old units , very clean and organized and super nice guys. I already gave my family his info so they will be calling them in the future. The owner makes us his priority and does everything from start to finish. Gave us a great price and wonderful dealing with them. If we ever need anything in the future we will certainly call them. I highly recommend them. Nanci & franco "

franco f on July 2025

Contact us for all of your heating and air conditioning installs or replacements. We also do install and repair of boilers and furnaces. We service all of Suffolk and Nassau counties. We are a member of the Better Business Bureau, EPA certified, and a member of PSEGLI Cool Homes Contractors.

"We just got a new AC unit and oil furnace installed. We couldn’t be happier ! They were very professional from the start. They were so good with all the details and took away our old units , very clean and organized and super nice guys. I already gave my family his info so they will be calling them in the future. The owner makes us his priority and does everything from start to finish. Gave us a great price and wonderful dealing with them. If we ever need anything in the future we will certainly call them. I highly recommend them. Nanci & franco "

franco f on July 2025


"While I felt the pricing was high, they did a good job. "

Linda G on January 2026

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade, and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.

"While I felt the pricing was high, they did a good job. "

Linda G on January 2026


Rizzo Heating & Cooling, Inc.

4.87(
82
)
Approved Pro

Rizzo Heating & Cooling, Inc.

4.87(
82
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade, and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Ii found them to be reliable, experienced in all my plumbing needs. Always returns calls. Found to be fair. Would hire again when needed."

J l on February 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade, and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Ii found them to be reliable, experienced in all my plumbing needs. Always returns calls. Found to be fair. Would hire again when needed."

J l on February 2024


Avatar for MassAir

MassAir

4.90(
62
)
Approved Pro

MassAir

4.90(
62
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
19 years of experience

With over 30 years industry experience we are dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. As the owner I personally design and install each system with my experienced employees. We take pride in the quality of our work and our commitment to outstanding results and look forward to building long-term relationships with our clients, and guarantee your satisfaction. FREE estimates. Licensed and Insured. FINANCING available.

"We had an ac unit put in two years ago. It never worked quite right. He came to check situation a couple times last summer - being it was a new unit - said to leave on auto/70 and should be fine. Still would not work correctly, hot days wouldn't work at all. This year was not working at all, only HOT air would come out. Once again came this summer, added more freon, stating there must be a leak somewhere. They couldn't find leak, told us we need to replace all the copper piping to fix the not even found leak. Wanted to charge insane amount money to fix a recent unit they installed that never worked in the first place! I tried calling the business a few times with not a single call back to speak with me. Thankfully i was forced to get it checked by someone else - it was an EASY fix! The flares were never tightened and there was a welded area that we were never told was done in first place. Do not trust this place; horrible customer service, unreliable, and afraid i was almost scammed!"

Emily O on June 2025

With over 30 years industry experience we are dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. As the owner I personally design and install each system with my experienced employees. We take pride in the quality of our work and our commitment to outstanding results and look forward to building long-term relationships with our clients, and guarantee your satisfaction. FREE estimates. Licensed and Insured. FINANCING available.

"We had an ac unit put in two years ago. It never worked quite right. He came to check situation a couple times last summer - being it was a new unit - said to leave on auto/70 and should be fine. Still would not work correctly, hot days wouldn't work at all. This year was not working at all, only HOT air would come out. Once again came this summer, added more freon, stating there must be a leak somewhere. They couldn't find leak, told us we need to replace all the copper piping to fix the not even found leak. Wanted to charge insane amount money to fix a recent unit they installed that never worked in the first place! I tried calling the business a few times with not a single call back to speak with me. Thankfully i was forced to get it checked by someone else - it was an EASY fix! The flares were never tightened and there was a welded area that we were never told was done in first place. Do not trust this place; horrible customer service, unreliable, and afraid i was almost scammed!"

Emily O on June 2025


Avatar for AR AIR CORP

AR AIR CORP

5.00(
51
)
Approved Pro

AR AIR CORP

5.00(
51
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
27 years of experience

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.

"great service.excellent and timely work completed by a professional service manager'"

Charles I on November 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.

"great service.excellent and timely work completed by a professional service manager'"

Charles I on November 2025


Avatar for I & M Handyman and Cleaning Services

I & M Handyman and Cleaning Services

4.97(
37
)
Approved Pro

I & M Handyman and Cleaning Services

4.97(
37
)
Approved Pro
Super Service Award
Customers say: Quick response
7 years of experience
Free onsite estimate

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"Extremely patient with working with my work schedule. He was on time, respect my home by taking shoes off at front door, very professional, polite, and didn’t mind my pets running around. Would definitely hire him again and also refer him to friends and family."

Dorise E on January 2026

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"Extremely patient with working with my work schedule. He was on time, respect my home by taking shoes off at front door, very professional, polite, and didn’t mind my pets running around. Would definitely hire him again and also refer him to friends and family."

Dorise E on January 2026


Avatar for MSD Heating & Cooling

MSD Heating & Cooling

4.92(
60
)
Approved Pro

MSD Heating & Cooling

4.92(
60
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
24 years of experience

NOTE I M SORRY FOR ALL , WE NOT DOING ANY TYPE OF PLUMBING, WORK. OIL FURNACE,OIL BOILER , OIL HOT WATER HEATER, WE ARE DOING GAS FURNACE, AND HEAT PUMP SYSTEM HEATING AND AIR CONDITIONING.THAT'S ALL , WE DONT DO BASEBOARD, RADIANT,ANY OIL APPLIANCE OR PLUMBING WORK . THANKS FOR UNDERSTANDING. MSD Heating and Cooling is now offering free estimates for all AC replacements and new installations. We have been in the business for over 18 years and we've been lucky enough to learn a thing or two over those years. We've even worked hard to make sure that our staff knows the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal!

"Reasonable price great work friendly and very clean staff"

Huseyin a on May 2022

NOTE I M SORRY FOR ALL , WE NOT DOING ANY TYPE OF PLUMBING, WORK. OIL FURNACE,OIL BOILER , OIL HOT WATER HEATER, WE ARE DOING GAS FURNACE, AND HEAT PUMP SYSTEM HEATING AND AIR CONDITIONING.THAT'S ALL , WE DONT DO BASEBOARD, RADIANT,ANY OIL APPLIANCE OR PLUMBING WORK . THANKS FOR UNDERSTANDING. MSD Heating and Cooling is now offering free estimates for all AC replacements and new installations. We have been in the business for over 18 years and we've been lucky enough to learn a thing or two over those years. We've even worked hard to make sure that our staff knows the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal!

"Reasonable price great work friendly and very clean staff"

Huseyin a on May 2022


Allined Mechanical

4.92(
74
)
Approved Pro

Allined Mechanical

4.92(
74
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
6 years of experience

Allined Mechanical, we pride our company on reliability, great communication, integrity, and quality work. 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!

"Competent, professional, expert service. They did a very thorough, neat job in repairing my unit. Replaced what was necessary and cleaned up. Plus, they kept me in the loop the whole time. Very transparent, very fair, straight forward people. I highly recommend them—plus, they contacted me the next day after the job they did for us to make sure all was well!"

Dean P on August 2025

Allined Mechanical, we pride our company on reliability, great communication, integrity, and quality work. 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!

"Competent, professional, expert service. They did a very thorough, neat job in repairing my unit. Replaced what was necessary and cleaned up. Plus, they kept me in the loop the whole time. Very transparent, very fair, straight forward people. I highly recommend them—plus, they contacted me the next day after the job they did for us to make sure all was well!"

Dean P on August 2025

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Heating and Air Conditioning questions, answered by experts

To make the most out of your AC, consider implementing the following best practices: 

  • Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

  • Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

  • Clean or replace the filter at least every two months. 

  • Inspect the AC’s fan and straighten it if necessary. 

  • Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

  • Turn off (or adjust the temperature) when you leave the house.

A few drips here and there should not be cause for concern, but if your unit is leaking a large amount of water, then it’s advised that you stop using it until the problem is identified and a solution is determined. The more you use it during a leak, the more issues it will cause.

Usually, ductwork is not included when you purchase a new HVAC system; it needs to be purchased separately. As far as installation, you’d need to speak with your local duct installer or HVAC technician directly to learn what their services include, but having your entire ductwork system replaced is likely to be more expensive than simply having your new AC unit installed without ductwork replacement.

The average life span of an HVAC system is 15 to 20 years. Even if your old air conditioner is still functional, it isn't as energy-efficient as a newer system (especially one with an Energy Star designation). Older HVAC systems aren't as efficient, and the 10-year mark is when you should start making full system replacement plans. Twenty years in, that plan should be well underway rather than waiting for the unit to die.

While spending money once or twice a year to tuneup your AC and furnace might seem like a waste of money, think again. The cost of HVAC maintenance is far less than the cost of replacing your furnace or AC unit, regardless of the type of HVAC system you have. Paying this smaller fee now will help you avoid paying much more significant costs in the future. Not to mention, having a serviced AC and heating system will help keep your home comfortable, no matter the season. 

The Central Islip, NY homeowners’ guide to heating and air conditioning services

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

What do you need done? We’ll find top pros.
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