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Central a/c installers in Islip Terrace

MST Mechanical

1127 Namdac Ave
5.00(
1
)
Approved Pro

MST Mechanical

1127 Namdac Ave
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

At MST 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 task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

""

John B on July 2021

At MST 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 task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

""

John B on July 2021


Avatar for All Weather Temperature Control, Inc.

All Weather Temperature Control, Inc.

35 Court Street
3.58(
6
)
Approved Pro

All Weather Temperature Control, Inc.

35 Court Street
3.58(
6
)
Approved Pro
56 years of experience
Free onsite estimate

At All Weather Temperature Control, Inc., we help you create and maintain a comfortable and healthy indoor climate in your home or commercial building, regardless of the season or temperature outside. Using our high efficiency and Energy Star rated HVAC, air purification and water filtration systems, you will use less energy, cut down on utility costs and live and work in comfort, year-round. Family owned and operated, we have been serving the heating and air conditioning needs of our customers in both Nassau and Suffolk counties on Long Island for 51 years!

"They price gouged me on a fan motor. The part coast about $700 and they charged me $1,700 I had bought 2 full AC units and a boiler from them and trusted that they would treat right on my repair. DON'T DO business with All Weather"

David S on September 2024

At All Weather Temperature Control, Inc., we help you create and maintain a comfortable and healthy indoor climate in your home or commercial building, regardless of the season or temperature outside. Using our high efficiency and Energy Star rated HVAC, air purification and water filtration systems, you will use less energy, cut down on utility costs and live and work in comfort, year-round. Family owned and operated, we have been serving the heating and air conditioning needs of our customers in both Nassau and Suffolk counties on Long Island for 51 years!

"They price gouged me on a fan motor. The part coast about $700 and they charged me $1,700 I had bought 2 full AC units and a boiler from them and trusted that they would treat right on my repair. DON'T DO business with All Weather"

David S on September 2024


Avatar for RVM Heating & Air Conditioning

RVM Heating & Air Conditioning

66 Orient Ave
4.93(
21
)
Approved Pro

RVM Heating & Air Conditioning

66 Orient Ave
4.93(
21
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
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!

"Rene and Maurico installed a new air conditioning unit in my home. They negotiated fairly and were responsive to my questions. A team of five arrived for the installation. They worked together like a well tuned machine. Everyone knew what they had to do and when to do it. There were no mistakes. They were here by 8:00 am and were finished by 4:30. They answered all my questioned and responded to my phone calls. They were polite and respectful. They cleaned up after themselves and left nothing damaged. More companies should operate like them. I would highly recommend them"

Delvis M on July 2025

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!

"Rene and Maurico installed a new air conditioning unit in my home. They negotiated fairly and were responsive to my questions. A team of five arrived for the installation. They worked together like a well tuned machine. Everyone knew what they had to do and when to do it. There were no mistakes. They were here by 8:00 am and were finished by 4:30. They answered all my questioned and responded to my phone calls. They were polite and respectful. They cleaned up after themselves and left nothing damaged. More companies should operate like them. I would highly recommend them"

Delvis M on July 2025


Avatar for 1-800-Plumber +Air of Central Long Island

1-800-Plumber +Air of Central Long Island

36 Gazza Boulevard
5.00(
6
)
Approved Pro

1-800-Plumber +Air of Central Long Island

36 Gazza Boulevard
5.00(
6
)
Approved Pro
Customers say: Quick response
41 local quotes requested
1 years of experience

1-800-Plumber + Air of Central Long Island is focused on being the BEST! It's not about being better than everyone else, instead our focus is on providing you with the fast, dependable plumbing and emergency services when you need it most. Our goal is to give you the BEST experience you have ever received from a service based business.

"Knowlegable. Excellent service."

Thomas B on August 2025

1-800-Plumber + Air of Central Long Island is focused on being the BEST! It's not about being better than everyone else, instead our focus is on providing you with the fast, dependable plumbing and emergency services when you need it most. Our goal is to give you the BEST experience you have ever received from a service based business.

"Knowlegable. Excellent service."

Thomas B on August 2025


Avatar for Ringer Mechanical

Ringer Mechanical

105 Awixa Ave
5.00(
1
)
Approved Pro

Ringer Mechanical

105 Awixa Ave
5.00(
1
)
Approved Pro
34 years of experience
Emergency services offered

Expert HVAC Installations and Service to the Long Island Community for over 30 years. Ruud Pro Partner Certified. Superior Support, 24/7 Emergency Service Available. Licensed and Insured. 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!

"They were on time to make an evaluation and followed up with a detailed quote. They were able to complete the job in one day (as promised) and then they explained everything that was installed. Very nice people. efficient and cost-effective. Highly recommended! "

robert r on May 2025

Expert HVAC Installations and Service to the Long Island Community for over 30 years. Ruud Pro Partner Certified. Superior Support, 24/7 Emergency Service Available. Licensed and Insured. 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!

"They were on time to make an evaluation and followed up with a detailed quote. They were able to complete the job in one day (as promised) and then they explained everything that was installed. Very nice people. efficient and cost-effective. Highly recommended! "

robert r on May 2025


Avatar for N. H. Ross, Inc.

N. H. Ross, Inc.

120 Middle Country Road
4.79(
164
)
Approved Pro

N. H. Ross, Inc.

120 Middle Country Road
4.79(
164
)
Approved Pro
Customers say: True professional
49 years of experience
Warranties offered

N H Ross, Inc. is proud to be a locally owned and operated business serving Middle Island and the surrounding community. Since 1971, we’ve been providing expert heating and cooling solutions to keep homes comfortable in every season. From heat pumps and oil-to-gas conversions to new system replacements, mini split installations, and preventative maintenance, we deliver upfront pricing, timely service, and a 100% satisfaction guarantee.

"I have used N.H. Ross in the past, and will continue to use them in the future. They are very professional, extremely well-trained, and knowledgeable in their trades -- As well as genuinely great down-to-earth human beings. Every time I invite them into my house to complete work, they always pay attention to the smallest details and clean up after themselves. I am thoroughly impressed that this company can find such great men and women to represent their brand. This time around, I had a ductless mini-split system installed. Eli and Bryan were able to walk me through every step that they were taking and made sure that any questions I had were thoroughly answered. They care -- they took time to make sure that the exterior lines were routed in a manner that was visually appealing and functional. 10/10 service and I would (and will) call them again for ANY home improvement that they cover."

Ryan K on August 2025

N H Ross, Inc. is proud to be a locally owned and operated business serving Middle Island and the surrounding community. Since 1971, we’ve been providing expert heating and cooling solutions to keep homes comfortable in every season. From heat pumps and oil-to-gas conversions to new system replacements, mini split installations, and preventative maintenance, we deliver upfront pricing, timely service, and a 100% satisfaction guarantee.

"I have used N.H. Ross in the past, and will continue to use them in the future. They are very professional, extremely well-trained, and knowledgeable in their trades -- As well as genuinely great down-to-earth human beings. Every time I invite them into my house to complete work, they always pay attention to the smallest details and clean up after themselves. I am thoroughly impressed that this company can find such great men and women to represent their brand. This time around, I had a ductless mini-split system installed. Eli and Bryan were able to walk me through every step that they were taking and made sure that any questions I had were thoroughly answered. They care -- they took time to make sure that the exterior lines were routed in a manner that was visually appealing and functional. 10/10 service and I would (and will) call them again for ANY home improvement that they cover."

Ryan K on August 2025


Avatar for Varsity Home Service Company, Inc.

Varsity Home Service Company, Inc.

1610 Ocean Avenue
4.78(
191
)
Approved Pro

Varsity Home Service Company, Inc.

1610 Ocean Avenue
4.78(
191
)
Approved Pro
Customers say: Quality work
502 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!

"Alexis and his crew were great, from start to finish."

Nick A on August 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!

"Alexis and his crew were great, from start to finish."

Nick A on August 2025


Absolute Zero Air Conditioning & Heating

14 Fuller Dr
4.89(
79
)
Approved Pro

Absolute Zero Air Conditioning & Heating

14 Fuller Dr
4.89(
79
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

With over 10 years experience the HVAC industry, we are the experts you need to take care of your home or business. We handle everything from Central A/C to Gas Furnace installation. We will treat your home as we would treat our own. Give Absolute Zero Air Conditioning & Heating a call today, we look forward to working with you! Do not do Ductless Air Conditioning.

"You will not be disappointed with Kyle and company. Replaced old AC unit with a new AC/heat pump system. After the deposit Kyle didn't ask for any money until the job was DONE! AND...while other companies jacked up the price for a heat pump system, Kyle was on the nose. You won't be disappointed at all!!!!"

Frank Y on October 2022

With over 10 years experience the HVAC industry, we are the experts you need to take care of your home or business. We handle everything from Central A/C to Gas Furnace installation. We will treat your home as we would treat our own. Give Absolute Zero Air Conditioning & Heating a call today, we look forward to working with you! Do not do Ductless Air Conditioning.

"You will not be disappointed with Kyle and company. Replaced old AC unit with a new AC/heat pump system. After the deposit Kyle didn't ask for any money until the job was DONE! AND...while other companies jacked up the price for a heat pump system, Kyle was on the nose. You won't be disappointed at all!!!!"

Frank Y on October 2022


New York HVAC Corporation

PO Box 2234
4.75(
45
)
Approved Pro

New York HVAC Corporation

PO Box 2234
4.75(
45
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
13 years of experience

Thank you for visiting we have over 30 years of experience in the business. Here at New York HVAC Corporation 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! We are fully licensed and insured.

"I never leave bad reviews but feel compelled to warn people not to use this man's service. The most unprofessional, short tempered and hostile man. I am a young mother with a 3 month old infant, so getting our hvac fixed is crucial. Vinny canceled on us last minute and rescheduled twice, he bad mouthed other companies who had worked on our system previously, he told us to run our own wires, and then called my father in law stupid for doing it wrong. When I interjected saying that that wasn't very nice and asked my father if we should call someone else, he became irate, yelled at me for saying something, said i ?should mind my business? in my own home, raised his voice loud enough to startle my infant and made him cry, said he ?should have pushed us down the stairs?, and stormed out of the house like a disgruntled prima-donna. The whole situation left me and my baby rattled. This man thinks that the demand for his trade entitles him to speak down to and mistreat customers.Go elsewhere."

amy m on April 2025

Thank you for visiting we have over 30 years of experience in the business. Here at New York HVAC Corporation 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! We are fully licensed and insured.

"I never leave bad reviews but feel compelled to warn people not to use this man's service. The most unprofessional, short tempered and hostile man. I am a young mother with a 3 month old infant, so getting our hvac fixed is crucial. Vinny canceled on us last minute and rescheduled twice, he bad mouthed other companies who had worked on our system previously, he told us to run our own wires, and then called my father in law stupid for doing it wrong. When I interjected saying that that wasn't very nice and asked my father if we should call someone else, he became irate, yelled at me for saying something, said i ?should mind my business? in my own home, raised his voice loud enough to startle my infant and made him cry, said he ?should have pushed us down the stairs?, and stormed out of the house like a disgruntled prima-donna. The whole situation left me and my baby rattled. This man thinks that the demand for his trade entitles him to speak down to and mistreat customers.Go elsewhere."

amy m on April 2025


Avatar for MassAir

MassAir

26 Johnston Avenue
4.90(
62
)
Approved Pro

MassAir

26 Johnston Avenue
4.90(
62
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
11 local quotes requested

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

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The Islip Terrace, NY homeowners’ guide to central a/c installations

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

  • Technician repairing air conditioner

    HomeAdvisor's Air Conditioning Repair Cost Guide gives the average price to fix an AC unit in your house. Find the cost of recharging the AC or fixing a freon leak. Get the price to repair or replace a compressor, handler, thermostat, duct, and more.

  • An AC system in the backyard of a house

    This guide explores the average cost of replacing your AC compressor and all of the factors that go into it, including size, type, and brand.

  • Detail of a HVAC system outside a brick house

    The cost of replacing an AC unit fan motor depends on warranties, labor, season, and more. This cost guide covers everything you need to know about this HVAC part.