Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Ronkonkoma, NY

There are 26 highly-rated local heating and air conditioning pros.

TRUSTED BY RONKONKOMA, NY HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon117
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Ronkonkoma, NY

*The Angi rating for Heating And Air Conditioning Service companies in Ronkonkoma, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Ronkonkoma, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on November 29, 2025

Find Heating and air conditioning pros in Ronkonkoma

Avatar for Fix it Phil

Fix it Phil

4.83(
46
)
•Approved Pro

Fix it Phil

4.83(
46
)
•Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
113 local quotes requested

We have the experience to get everything on your honey-do list done! Since 2015, we have been specializing in handyman services, home repairs, home improvements, TV mounting, electrical, plumbing, painting, deck building, deck maintenance, and more! We won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! We also accept Venmo and Zelle, in addition to checks and cash. Call or click to schedule a free estimate today!

"Phil and his crew were excellent. Installed new drywall and fixed damage termite area. All work completed in 2days. Thanks"

Lino G on April 2025

We have the experience to get everything on your honey-do list done! Since 2015, we have been specializing in handyman services, home repairs, home improvements, TV mounting, electrical, plumbing, painting, deck building, deck maintenance, and more! We won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! We also accept Venmo and Zelle, in addition to checks and cash. Call or click to schedule a free estimate today!

"Phil and his crew were excellent. Installed new drywall and fixed damage termite area. All work completed in 2days. Thanks"

Lino G on April 2025

Avatar for Elm Air Conditioning Corp

Elm Air Conditioning Corp

4.45(
74
)
•Approved Pro

Elm Air Conditioning Corp

4.45(
74
)
•Approved Pro
Customers say: Super punctual
96 local quotes requested
73 years of experience

Residential heating and air conditioning. Additional email - [email protected]. Additional phone 631-589-7766

"They installed a new air handler and compressor,my old system,also installed by them,18 years ago,had some serious repair issues. i have dealt with them for 18 years,with maintenance and checkups,have always been tyreated with courtesy,respect and top notch serice,the team that came yesterday,was prepared,knowledgeable and took extra care to not damge my home.very satisfied with the crew,installation...and never in my 80 yeras have so many nice young man,called me sir."

Michael P on May 2024

Residential heating and air conditioning. Additional email - [email protected]. Additional phone 631-589-7766

"They installed a new air handler and compressor,my old system,also installed by them,18 years ago,had some serious repair issues. i have dealt with them for 18 years,with maintenance and checkups,have always been tyreated with courtesy,respect and top notch serice,the team that came yesterday,was prepared,knowledgeable and took extra care to not damge my home.very satisfied with the crew,installation...and never in my 80 yeras have so many nice young man,called me sir."

Michael P on May 2024

Avatar for ADVANCED AIR CONDITIONING, HEATING & REFRIGERATION

ADVANCED AIR CONDITIONING, HEATING & REFRIGERATION

4.49(
67
)
•Approved Pro

ADVANCED AIR CONDITIONING, HEATING & REFRIGERATION

4.49(
67
)
•Approved Pro
Customers say: Quality work
20 local quotes requested
1 years of experience

Advanced Air Conditioning, Heating & Refrigeration is a locally owned and family-operated HVAC company proudly serving Nassau and Suffolk Counties on Long Island. With 43 years of experience, our certified technicians provide expert AC repair, furnace repair, heating, cooling, and maintenance services to keep your home or business comfortable year-round. From emergency repairs to seasonal maintenance and energy-efficient upgrades, we deliver fast, reliable solutions backed by honesty and quality workmanship. Rated 4.7★ on Google Business and holding a BBB A- rating, we are a trusted local HVAC contractor committed to keeping your system operating safely, efficiently, and worry-free for years

"Trustworthy and No Drama Highly Recommended "

Rodelio S on October 2025

Advanced Air Conditioning, Heating & Refrigeration is a locally owned and family-operated HVAC company proudly serving Nassau and Suffolk Counties on Long Island. With 43 years of experience, our certified technicians provide expert AC repair, furnace repair, heating, cooling, and maintenance services to keep your home or business comfortable year-round. From emergency repairs to seasonal maintenance and energy-efficient upgrades, we deliver fast, reliable solutions backed by honesty and quality workmanship. Rated 4.7★ on Google Business and holding a BBB A- rating, we are a trusted local HVAC contractor committed to keeping your system operating safely, efficiently, and worry-free for years

"Trustworthy and No Drama Highly Recommended "

Rodelio S on October 2025

Avatar for All Weather Heating & Cooling

All Weather Heating & Cooling

4.68(
60
)
•Approved Pro

All Weather Heating & Cooling

4.68(
60
)
•Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
364 local quotes requested

All Weather Heating & Cooling has been serving Nassau & Suffolk County of Long Island since 1969. We are now celebrating 56 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

All Weather Heating & Cooling has been serving Nassau & Suffolk County of Long Island since 1969. We are now celebrating 56 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

Avatar for Mike’s Amazing Maintenance

Mike’s Amazing Maintenance

3.00(
2
)
•Approved Pro

Mike’s Amazing Maintenance

3.00(
2
)
•Approved Pro
Customers say: Quick response
77 local quotes requested
2 years of experience

Over 20 years of experience doing home maintenance. My specialities include: painting, woodwork, demolition and general home repairs. I work with every customer to ensure they are satisfied with every job!

"Overall, careless and sloppy. He had one guy that was dependable but he was constantly pulled to work at other locations. As result, my projects were put on hold. Mike tried to complete the jobs himself but simply made things worse. Had to find someone else to the job and clean up his mess. Not worth hiring. Do yourself a favor, save time and money and find someone else."

Trisha M on October 2025

Over 20 years of experience doing home maintenance. My specialities include: painting, woodwork, demolition and general home repairs. I work with every customer to ensure they are satisfied with every job!

"Overall, careless and sloppy. He had one guy that was dependable but he was constantly pulled to work at other locations. As result, my projects were put on hold. Mike tried to complete the jobs himself but simply made things worse. Had to find someone else to the job and clean up his mess. Not worth hiring. Do yourself a favor, save time and money and find someone else."

Trisha M on October 2025

Avatar for The Guy

The Guy

5.00(
2
)
•Approved Pro

The Guy

5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
90 local quotes requested

All types of home repairs , electric , plumbing , carpenter , painting I take your honey do list and turn it into a honey done list if you have a problem just call THE GUY to solve it

"Ed responded quickly! He stopped by & repaired the door. I now do not have to struggle to open, close & lock the door. Fantastic work! We will be hiring Ed again soon for sure!"

Joan B on April 2025

All types of home repairs , electric , plumbing , carpenter , painting I take your honey do list and turn it into a honey done list if you have a problem just call THE GUY to solve it

"Ed responded quickly! He stopped by & repaired the door. I now do not have to struggle to open, close & lock the door. Fantastic work! We will be hiring Ed again soon for sure!"

Joan B on April 2025

Avatar for Natural Breeze LLC.

Natural Breeze LLC.

5.00(
9
)
•Approved Pro

Natural Breeze LLC.

5.00(
9
)
•Approved Pro
Customers say: Quick response
60 local quotes requested
3 years of experience

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

"I will give Luis a 10 stars! Very knowledgeable and know what he is doing."

Frank L on November 2025

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

"I will give Luis a 10 stars! Very knowledgeable and know what he is doing."

Frank L on November 2025

Avatar for AR AIR CORP

AR AIR CORP

4.92(
51
)
•Approved Pro

AR AIR CORP

4.92(
51
)
•Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
115 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 KS Mechanical Services

KS Mechanical Services

5.00(
11
)
•Approved Pro

KS Mechanical Services

5.00(
11
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
153 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

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

Avatar for JB Comfort Heat and Air Conditions

JB Comfort Heat and Air Conditions

4.72(
43
)
•Approved Pro

JB Comfort Heat and Air Conditions

4.72(
43
)
•Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
44 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!!

"The technician is not familiar with fixing HVAC units . I wasted 2 days and $350 . Finally i got the navien tech came and fix the unit. If you are looking for tankless water heaters, go with a technician who is a certified installer."

Tito P on November 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!!

"The technician is not familiar with fixing HVAC units . I wasted 2 days and $350 . Finally i got the navien tech came and fix the unit. If you are looking for tankless water heaters, go with a technician who is a certified installer."

Tito P on November 2025

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Heating and Air Conditioning questions, answered by experts

Your air conditioner can temporarily run with a dirty filter, but it won’t work as efficiently. It will need to work harder to blow cool air throughout the room or house, and this can eventually cause the air conditioner to overheat or die prematurely. It’s much more cost-effective to clean or replace filters than to pay higher utility bills each month and replace the entire AC unit more often.

Air conditioners can stop working in the middle of the night for many reasons. Your local power grid might shut down late at night. Power surges can also trip your breakers if too much power is being used in the area at the time. If your AC is connected to a digital thermostat, it gets naturally cooler at night, so the outdoor temperature might dip below the automated setting to turn the cooling system off.

A power outage can damage your air conditioner, just like a power surge can damage any electrical device or appliance. In most cases, your circuit breaker or built-in surge protection on your AC unit protects your AC and just needs a reset. But in other cases, it might be that your AC compressor or capacitor was blown during the power surge. You’ll need to have an HVAC professional repair or replace any AC parts. 

Evaporator coils last between 10 and 15 years before they need to be replaced—as long as you stay up-to-date with routine maintenance. This is roughly the same life span as most AC units. So, if you have an older air conditioner and the evaporator coil goes out, it might be more cost-effective to replace the whole unit rather than just the coil.

There are a few factors to consider if you’re deciding between repairing and replacing your air conditioner. It’s probably worth fixing the AC unit if it’s less than 10 years old, you’re dealing with a one-off issue, and your warranty or maintenance plan will cover the repairs. On the other hand, if your air conditioner is dated, inefficient, out of warranty, and experiencing multiple problems, consider replacing it.

The Ronkonkoma, 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.

See all articles