Top-rated heating and air conditioning pros.

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

There are 6 highly-rated local heating and air conditioning pros.

TRUSTED BY NASSAU, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon273
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Nassau, 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 Nassau, 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 September 04, 2025

Heating and air conditioning pros in Nassau

Avatar for Crisafulli Bros. Home Services

Crisafulli Bros. Home Services

119 Warren Street
4.59(
61
)
•Approved Pro

Crisafulli Bros. Home Services

119 Warren Street
4.59(
61
)
•Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
237 local quotes requested

At Crisafulli Bros., we provide expert plumbing, heating, cooling, and electrical services throughout Upstate New York. Since 1939 our technicians combine the craftsmanship you’d expect from a locally owned family business with the resources and knowledge available from a large national company to ensure your home is safe, comfortable and efficient.

"Technician Jordan Thomas was on time, professional, friendly. Performed furnace cleaning quickly and removed all replaced filters. Explained work performed. Work was done under a service contract so no charge."

Jim D on October 2024

At Crisafulli Bros., we provide expert plumbing, heating, cooling, and electrical services throughout Upstate New York. Since 1939 our technicians combine the craftsmanship you’d expect from a locally owned family business with the resources and knowledge available from a large national company to ensure your home is safe, comfortable and efficient.

"Technician Jordan Thomas was on time, professional, friendly. Performed furnace cleaning quickly and removed all replaced filters. Explained work performed. Work was done under a service contract so no charge."

Jim D on October 2024

John Ray & Sons

2900 6th Avenue
New on AngiNew on Angi
•Approved Pro

John Ray & Sons

2900 6th Avenue
New on AngiNew on Angi
•Approved Pro
121 years of experience
Free onsite estimate

We're 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. With over 100 years of industry experience, 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 & look forward to building long-term relationships with our clients, and guarantee your satisfaction.

We're 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. With over 100 years of industry experience, 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 & look forward to building long-term relationships with our clients, and guarantee your satisfaction.

Highline Quality Services

298 4th Avenue
4.83(
3
)
•Approved Pro

Highline Quality Services

298 4th Avenue
4.83(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

We take great pride in our 3 years of 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.

"Hired Lewis to check out electrical in my older mobile home had to update panel box spent numerous hours here trying to troubleshoot electrical problems. Went over and above to try to solve the problem"

Sharon W on December 2024

We take great pride in our 3 years of 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.

"Hired Lewis to check out electrical in my older mobile home had to update panel box spent numerous hours here trying to troubleshoot electrical problems. Went over and above to try to solve the problem"

Sharon W on December 2024

Avatar for Capital Region Plumbing and Heating Services, LLC

Capital Region Plumbing and Heating Services, LLC

12 Grant Ave
4.47(
88
)
•Approved Pro

Capital Region Plumbing and Heating Services, LLC

12 Grant Ave
4.47(
88
)
•Approved Pro
Customers say: True professional
36 local quotes requested
6 years of experience

With nearly 20 years experience, capital region plumbing and heating services proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

"Excellent Service! I highly recommend the Capitol Region Plumbing and Heating Services LLC! Avi, and Sean came to my home immediately when I needed their help with bathroom plumbing and a water pump system. They were courteous, knowledgeable, and thoroughly evaluated the problems. Their excellent assessment and quality of work were evident as I looked at their pictures of before and after replacements of PVC pipes for main sewer lines, sink and shower drains, and water lines for the toilet. Also, Avi and Sean installed a new well pump and pressure tank system. They even came to my home on a holiday to assure me that I'd have water. As true professionals, Avi, and Sean are efficient, punctual, and reputable. Their work ethic is commendable and gracious manners are exceptional. This was an incredible plumbing service that everyone expects and appreciates!"

Brenda M on September 2025

With nearly 20 years experience, capital region plumbing and heating services proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

"Excellent Service! I highly recommend the Capitol Region Plumbing and Heating Services LLC! Avi, and Sean came to my home immediately when I needed their help with bathroom plumbing and a water pump system. They were courteous, knowledgeable, and thoroughly evaluated the problems. Their excellent assessment and quality of work were evident as I looked at their pictures of before and after replacements of PVC pipes for main sewer lines, sink and shower drains, and water lines for the toilet. Also, Avi and Sean installed a new well pump and pressure tank system. They even came to my home on a holiday to assure me that I'd have water. As true professionals, Avi, and Sean are efficient, punctual, and reputable. Their work ethic is commendable and gracious manners are exceptional. This was an incredible plumbing service that everyone expects and appreciates!"

Brenda M on September 2025

Avatar for Revenge Plumbing, LLC

Revenge Plumbing, LLC

8A Petra Lane
4.70(
461
)
•Approved Pro

Revenge Plumbing, LLC

8A Petra Lane
4.70(
461
)
•Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
325 local quotes requested

At Revenge Plumbing we take pride in our ability to make our customers happy. From providing clearly explained work scopes prior to commencing any work, to our service and follow up after the project, we work to ensure your satisfaction for years to come. Whether it’s a project as small as a clogged drain, or as large as re-piping your water and sewer systems, we have you covered. We specialize in prompt, affordable residential and commercial services to meet all of your plumbing needs. We offer a one year labor warranty and our vendors have many lifetime warranties on their products.

" Quick to schedule me, called to give me updates on ETA, and walked me through my HVAC system while repairs were happening. "

Damon C on July 2025

At Revenge Plumbing we take pride in our ability to make our customers happy. From providing clearly explained work scopes prior to commencing any work, to our service and follow up after the project, we work to ensure your satisfaction for years to come. Whether it’s a project as small as a clogged drain, or as large as re-piping your water and sewer systems, we have you covered. We specialize in prompt, affordable residential and commercial services to meet all of your plumbing needs. We offer a one year labor warranty and our vendors have many lifetime warranties on their products.

" Quick to schedule me, called to give me updates on ETA, and walked me through my HVAC system while repairs were happening. "

Damon C on July 2025

Avatar for Stream HVAC, LLC

Stream HVAC, LLC

627 Maple Lane
4.97(
31
)
•Approved Pro

Stream HVAC, LLC

627 Maple Lane
4.97(
31
)
•Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
31 local quotes requested

Stream HVAC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Great experience"

Lori D on February 2025

Stream HVAC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Great experience"

Lori D on February 2025

IndigoSky Construction

No reviews

IndigoSky Construction

No reviews
4 years of experience

Indigo Sky Construction, let us help you have a stress-free experience! *Fences-Install or repairs *Decks-Install or repairs *Porches-Install or repairs *Concrete work-all types (including stamp work), installs or repairs *Inground pools-including concrete work, installing the pool and liner or tile. *Interior renovations (Kitchens, bathrooms, flooring) *AND MORE, just ask us! We are owner-operated and have been in business since 2021. What makes us stand out are our competitive prices, pride in our work, our professionalism, willingness to work with customers, and our quick response to customer inquiries. As well as our backgrounds in construction, real estate, flipping, customer service and more! We love helping people make their dreams, ideas, or repairs come to life as stress free and smooth as possible.

Indigo Sky Construction, let us help you have a stress-free experience! *Fences-Install or repairs *Decks-Install or repairs *Porches-Install or repairs *Concrete work-all types (including stamp work), installs or repairs *Inground pools-including concrete work, installing the pool and liner or tile. *Interior renovations (Kitchens, bathrooms, flooring) *AND MORE, just ask us! We are owner-operated and have been in business since 2021. What makes us stand out are our competitive prices, pride in our work, our professionalism, willingness to work with customers, and our quick response to customer inquiries. As well as our backgrounds in construction, real estate, flipping, customer service and more! We love helping people make their dreams, ideas, or repairs come to life as stress free and smooth as possible.

Exclusive sweeps

5.00(
5
)

Exclusive sweeps

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Over 10 years of experience, chimney/stove cleaning and repairs. Chimney masonry repairs Chimney liner installs Chimney caps Cleanings- Fireplaces Wood stoves Furnace flues Pellet stoves Gas stoves

"Rich came out and cleaned our chimney. He was very respectful and had fair pricing. Highly recommend Exclusive Sweeps for any chimney services."

Jayden L on June 2024

Over 10 years of experience, chimney/stove cleaning and repairs. Chimney masonry repairs Chimney liner installs Chimney caps Cleanings- Fireplaces Wood stoves Furnace flues Pellet stoves Gas stoves

"Rich came out and cleaned our chimney. He was very respectful and had fair pricing. Highly recommend Exclusive Sweeps for any chimney services."

Jayden L on June 2024

High Tech Central Air Conditioning Services

No reviews

High Tech Central Air Conditioning Services

No reviews
32 years of experience

High Tech Central Air Conditioning Services has been in the business of keeping your home comfortable. From our expert air conditioning and heating installation to our speedy repairs, we provide top-notch services for your entire home comfort system. It is our belief that your home deserves the very best; that is why we strive for 100% customer satisfaction. We promise you will be happy with our services and our pricing! Contact us today at (631) 488-1200 for a free estimate on our top-quality services. visit our website http://www.hightechcentralairconditioning.com/ #hvac #plumbing #airconditioning #cooling #hvaclife #plumber #heatingandcooling #hvacservice #furnace #ac #hvactechnician #boiler #hvactech #plumbinglife #heatingengineer #airconditioner #construction #maintenance #plumbers #hvacinstall #hvacrepair #home #service #boilers #refrigeration #heatingsystem #hvacr #gas #contractor

High Tech Central Air Conditioning Services has been in the business of keeping your home comfortable. From our expert air conditioning and heating installation to our speedy repairs, we provide top-notch services for your entire home comfort system. It is our belief that your home deserves the very best; that is why we strive for 100% customer satisfaction. We promise you will be happy with our services and our pricing! Contact us today at (631) 488-1200 for a free estimate on our top-quality services. visit our website http://www.hightechcentralairconditioning.com/ #hvac #plumbing #airconditioning #cooling #hvaclife #plumber #heatingandcooling #hvacservice #furnace #ac #hvactechnician #boiler #hvactech #plumbinglife #heatingengineer #airconditioner #construction #maintenance #plumbers #hvacinstall #hvacrepair #home #service #boilers #refrigeration #heatingsystem #hvacr #gas #contractor

Mike Northrup

No reviews

Mike Northrup

No reviews

General handyman, landscaping, plumbing,light electrical, appliance repair, no job too small

General handyman, landscaping, plumbing,light electrical, appliance repair, no job too small

...
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FAQs for heating and air conditioning service projects in Nassau, NY

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 Nassau, 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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