Top-rated heating and air conditioning pros.

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

There are 27 highly-rated local heating and air conditioning pros.

TRUSTED BY SMITHTOWN, NY HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon282
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Smithtown, 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 Smithtown, 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 Smithtown

THERMOSOURCE MECHANICAL LLC

4.70(
5
)
•Approved Pro

THERMOSOURCE MECHANICAL LLC

4.70(
5
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

We're dedicated to providing our clients with the very best in installation, service, and repair for all of your Commercial HVAC 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.

"Great customer service. Friendly and knowledgeable staff."

Harish Y on January 2022

We're dedicated to providing our clients with the very best in installation, service, and repair for all of your Commercial HVAC 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.

"Great customer service. Friendly and knowledgeable staff."

Harish Y on January 2022

Avatar for Tedco Group, Inc.

Tedco Group, Inc.

4.54(
324
)
•Approved Pro

Tedco Group, Inc.

4.54(
324
)
•Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
61 local quotes requested

We are dedicated to providing our clients with the very best in service, installation, and repair for your heating and cooling needs. We are a locally owned and operated company that values 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 and look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Good service. Nice guys that got us back up and running. Communication could have been a little better but overall, it was a good experience. I will use them again for sure. "

Brian M on August 2025

We are dedicated to providing our clients with the very best in service, installation, and repair for your heating and cooling needs. We are a locally owned and operated company that values 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 and look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Good service. Nice guys that got us back up and running. Communication could have been a little better but overall, it was a good experience. I will use them again for sure. "

Brian M on August 2025

Avatar for Benitez Plumbing, Heating & Cooling Systems

Benitez Plumbing, Heating & Cooling Systems

5.00(
11
)
•Approved Pro

Benitez Plumbing, Heating & Cooling Systems

5.00(
11
)
•Approved Pro
60 local quotes requested
4 years of experience

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Five star work. Professional efficient and neat….highly recommended…..Price very reasonable and affordable….second to none…..I would give them repeat business……"

M S on October 2025

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Five star work. Professional efficient and neat….highly recommended…..Price very reasonable and affordable….second to none…..I would give them repeat business……"

M S on October 2025

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
371 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 Housitive Pbc

Housitive Pbc

5.00(
7
)
•Approved Pro

Housitive Pbc

5.00(
7
)
•Approved Pro
Customers say: Quick response
31 local quotes requested
2 years of experience

We are bringing our years of experience with mini-split heat pumps from Central New York to Long Island. Properly installed and maintained mini-splits are an efficient heating and cooling solution for most Long Island homes. At Housitive, we seek to serve our communities by providing the best mini-split installations and the best customer experience. We are committed to raising the bar for quality and efficiency and to creating a smooth, transparent process from first contact to completed project. We believe that mini-splits are a great choice for our homes, our communities, and our environment–and we want you to be as excited about them as we are, so we can together accelerate our transition away from fossil fuels!

"Communication and honestly was great from start to finish. They aligned to the vision we wanted with agreeable recommendations. They were clean and timely with the project and the final outcome was more than what was expected. I recommend them."

Christopher O on June 2025

We are bringing our years of experience with mini-split heat pumps from Central New York to Long Island. Properly installed and maintained mini-splits are an efficient heating and cooling solution for most Long Island homes. At Housitive, we seek to serve our communities by providing the best mini-split installations and the best customer experience. We are committed to raising the bar for quality and efficiency and to creating a smooth, transparent process from first contact to completed project. We believe that mini-splits are a great choice for our homes, our communities, and our environment–and we want you to be as excited about them as we are, so we can together accelerate our transition away from fossil fuels!

"Communication and honestly was great from start to finish. They aligned to the vision we wanted with agreeable recommendations. They were clean and timely with the project and the final outcome was more than what was expected. I recommend them."

Christopher O on June 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

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Heating and Air Conditioning questions, answered by experts

Many factors affect how much adding air conditioning will cost you, from the size of your home to the size, type, brand, and installation specifics of the system itself. Chances are, a new central air conditioning system for a 2,000-square-foot house will cost somewhere between $3,900 and $7,900 to install, with an average around $6,000. 

If your AC runs constantly, it could be due to a number of things, including a faulty thermostat, incorrect temperature settings, or broken equipment. Alternatively, you might have an airflow problem (for example, blocked vents or leaky ductwork). Either way, an HVAC pro can identify the specific problem and fix it for you.

If you have the luxury of waiting a bit to replace your unit, they can drop in price depending on the time of year. Air conditioning units often go on sale in the fall after they’re not as in demand when the temps drop outside. Same with furnaces—prices drop in the spring when it starts getting warmer.

Evaporator coils in HVAC systems typically last around 10 to 15 years. However, their life span can be longer or shorter based on factors like the frequency of your HVAC system usage, whether regular maintenance is performed, and environmental conditions. Regular maintenance, such as HVAC system cleaning and coil inspection, can extend the durability and efficiency of your evaporator coil.

No, it isn’t necessarily bad to turn your AC on and off frequently—contrary to popular belief. Even if you stop and start your AC throughout the day, it won’t use as much energy as it would if you ran it nonstop. 

If you’re concerned about your power consumption and energy costs, there are a few simple ways to use your AC more efficiently. Regularly cleaning the filters, scheduling routine maintenance, and using a programmable thermostat are all great choices.

The Smithtown, 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.

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