Top-rated heating and air conditioning pros.

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

There are 53 highly-rated local heating and air conditioning pros.

Matching on Angi

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

TRUSTED BY HOMEOWNERS

Average homeowner rating star icon4.5
Average homeowner rating
Verified reviews icon280
Verified heating and air conditioning services reviews

Heating and air conditioning pros in Smithtown

Avatar for Coolport Heating & Air Inc
Coolport Heating & Air Inc
PO BOX 1322
5.00(
6
)
Approved Pro
Coolport Heating & Air Inc
PO BOX 1322
5.00(
6
)
Approved Pro
Customers say: Quick response
25 years of experience
Free onsite estimate

Coolport Heating & Air Inc We Installed RUUD/ RHEEM, Fujitsu & Comfort maker System we service most brands

"I've been using cool port for over 20 years they have installed new air conditioner units in my old and new home. Vinnie and his staff are courteous and neat. They are very responsive to calls. I highly recommend them."

joe v on August 2021

Coolport Heating & Air Inc We Installed RUUD/ RHEEM, Fujitsu & Comfort maker System we service most brands

"I've been using cool port for over 20 years they have installed new air conditioner units in my old and new home. Vinnie and his staff are courteous and neat. They are very responsive to calls. I highly recommend them."

joe v on August 2021


Avatar for Just Chillin HVACR, LLC
Just Chillin HVACR, LLC
1227 Hyman Ave
4.93(
15
)
Approved Pro
Just Chillin HVACR, LLC
1227 Hyman Ave
4.93(
15
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

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.

"Not only done right but done more expeditiously than expected"

William W on May 2024

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.

"Not only done right but done more expeditiously than expected"

William W on May 2024


Avatar for ALL SEASONS PLUMBING SERVICES INC.
ALL SEASONS PLUMBING SERVICES INC.
755 Waverly Ave #217B
3.33(
6
)
Approved Pro
ALL SEASONS PLUMBING SERVICES INC.
755 Waverly Ave #217B
3.33(
6
)
Approved Pro
322 local quotes requested
31 years of experience

All Seasons Plumbing, LLC 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 the start to the 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.

"Sewer line replacement was a success. In February 2025, after a rain, a hole appeared in the area that was dug up, I called the plumber and they say "we will take care of it". I did not hear from them. Followed up on March 7 and texted updated pictures (hole was bigger) and left message. I texted and emailed a third group of pictures and left another message. As of 3/18/25, my calls have not been returned and no response has been made to my texts or email"

Homeowner on April 2025

All Seasons Plumbing, LLC 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 the start to the 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.

"Sewer line replacement was a success. In February 2025, after a rain, a hole appeared in the area that was dug up, I called the plumber and they say "we will take care of it". I did not hear from them. Followed up on March 7 and texted updated pictures (hole was bigger) and left message. I texted and emailed a third group of pictures and left another message. As of 3/18/25, my calls have not been returned and no response has been made to my texts or email"

Homeowner on April 2025


Avatar for The Electrical Wizard
The Electrical Wizard
PO Box 597
4.80(
513
)
Approved Pro
The Electrical Wizard
PO Box 597
4.80(
513
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
19 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.

" Very happy with the job, very professional And honest. I would highly recommend this company."

Jackie W on January 2025

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.

" Very happy with the job, very professional And honest. I would highly recommend this company."

Jackie W on January 2025


Avatar for 1-800-Plumber +Air of Central Long Island
1-800-Plumber +Air of Central Long Island
36 Gazza Boulevard
5.00(
5
)
Approved Pro
1-800-Plumber +Air of Central Long Island
36 Gazza Boulevard
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
117 local quotes requested

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.

"10/10"

Frank J on January 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.

"10/10"

Frank J on January 2025


Avatar for AA & JJ HVAC, Inc.
AA & JJ HVAC, Inc.
67 Winston Drive
5.00(
7
)
Approved Pro
AA & JJ HVAC, Inc.
67 Winston Drive
5.00(
7
)
Approved Pro

AA & JJ HVAC INC offers reliability, great communication, integrity, and quality work. We are experts in our trade. Our motto is to "treat every customer as we would a family member". We look forward to earning your business!

"This is your HVAC guy!! Accept no substitutes! Mr Ryan not only installed a new thermostat, he made new filter rails for my furnace and cleaned out the carbon build up in the jets. A+ performance and reliability. On time and professional!! This is the guy!! I will definitely be calling him for my yearly maintenance. "

Chris M on March 2025

AA & JJ HVAC INC offers reliability, great communication, integrity, and quality work. We are experts in our trade. Our motto is to "treat every customer as we would a family member". We look forward to earning your business!

"This is your HVAC guy!! Accept no substitutes! Mr Ryan not only installed a new thermostat, he made new filter rails for my furnace and cleaned out the carbon build up in the jets. A+ performance and reliability. On time and professional!! This is the guy!! I will definitely be calling him for my yearly maintenance. "

Chris M on March 2025


Just Rite Heating and Cooling
17 Lake Grove Street
4.93(
122
)
Approved Pro
Just Rite Heating and Cooling
17 Lake Grove Street
4.93(
122
)
Approved Pro
Customers say: Quick response
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
30 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 MassAir
MassAir
26 Johnston Avenue
4.96(
61
)
Approved Pro
MassAir
26 Johnston Avenue
4.96(
61
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
27 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.

"The guys at MassAir made having to get new central AC units installed, repairs on older units, new vents and ductwork, etc., actually a pleasurable experience! It is a family owned business, and I found Joe and his son Michael to be a real pleasure to work with. They are an extremely professional, proficient, knowledgeable, honest and hardworking team, and I trust them with any HVAC related projects that I have in the future. I 100% recommend giving these guys a call for your HVAC needs! -Mike Vedder"

Mike V on April 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.

"The guys at MassAir made having to get new central AC units installed, repairs on older units, new vents and ductwork, etc., actually a pleasurable experience! It is a family owned business, and I found Joe and his son Michael to be a real pleasure to work with. They are an extremely professional, proficient, knowledgeable, honest and hardworking team, and I trust them with any HVAC related projects that I have in the future. I 100% recommend giving these guys a call for your HVAC needs! -Mike Vedder"

Mike V on April 2025


Top Gun Kitchen & Cabinets
5.00(
11
)
Top Gun Kitchen & Cabinets
5.00(
11
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Full service Kitchen Remodeling company. Specializing in cabinet painting and kitchen face lifts with over 25 years experience. Free consultations. ZERO pressure sales. Let us save you thousands. Call today.

"The work went very well Robert was pleasant, easy to to talk to and very skilled!. He repaired and touched up cabinet doors. They matched perfectly. He is vey dependable. I highly recommend him. I was really thrilled with the work he did!"

Alice C on April 2025

Full service Kitchen Remodeling company. Specializing in cabinet painting and kitchen face lifts with over 25 years experience. Free consultations. ZERO pressure sales. Let us save you thousands. Call today.

"The work went very well Robert was pleasant, easy to to talk to and very skilled!. He repaired and touched up cabinet doors. They matched perfectly. He is vey dependable. I highly recommend him. I was really thrilled with the work he did!"

Alice C on April 2025


...
Showing 21-30 of 220

Heating and air conditioning services FAQs

Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.

While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.  

The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations. 

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.  

The 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.
woman on couch using remote to adjust air conditioner
Apr 28, 2025
Apr 28, 2025
When your window AC isn’t cutting it, but central AC is too expensive, installing a new ductless mini-split AC may be the cooling solution you’re looking for. Find out what a mini-split costs and how to hire the right pros to get the job done.
Father and son playing at home
Apr 24, 2025
Apr 24, 2025
Heating and cooling system on the fritz? Discover the factors that go into HVAC repair costs and how you can save money on this crucial home update.
new furnace blower motor closeup
Apr 29, 2025
Apr 29, 2025
When your HVAC system is acting up, it could be the blower motor to blame. See how much blower motor replacement costs and what impacts the price here.
A woman covered in a blanket reading a book
Apr 23, 2025
Apr 23, 2025
Whether you’ve lost heat or your furnace is making strange sounds, stay calm. Use this guide to determine the source of the problem and your next steps.
Bedroom interior with big bed and a sunny window
Apr 25, 2025
Apr 25, 2025
If you’re asking, “Why is my upstairs so hot?” we’re here to help. Read on and learn why it isn’t just poor air circulation causing a toasty top floor.
A woman covered in a blanket drinking some coffee
Apr 22, 2025
Apr 22, 2025
Why are some rooms colder than others? If your living room is toasty but the bedroom is freezing, here are a few reasons why and how to fix it.
Share project details to get started.