Get matched with top heating and air conditioning pros in West Sayville, NY
There are 50 highly-rated local heating and air conditioning pros.
TRUSTED BY HOMEOWNERS
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181 Verified Reviews for Heating And Air Conditioning Service pros in West Sayville, NY
*The Angi rating for Heating And Air Conditioning Service companies in West Sayville, 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 West Sayville, 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 May 28, 2025
Heating and air conditioning pros in West Sayville
Since 1999, woman-owned and operated Triple H Insulation has been providing Long Island customers with the most comprehensive home evaluation services with the utmost integrity and professionalism. We specialize in all aspects of Insulation and Air Sealing, including open and closed-cell Spray Foam, blown in and dense-packed cellulose, crawl space encapsulation and dehumidification. We can perform a free evaluation of your home from your basement or crawlspace to your attic. As a woman-owned company, we are committed to treating everyone with equal respect and focus on direct communication with all the household decision makers so each person is engaged in the process. Our skilled comfort consultants use building science principles to help our clients reduce energy costs and improve their homes' comfort. We hold a Gold Star designation from the Building Performance Institute (BPI.org) and our staff is Gold Star BPI certified. Triple H has Home Improvement Licenses in Suffolk, Nassau and NYC. See our great before and after photos on triplehcontracting.com.
"They are supposed to come tomorrow, they agreed on that. They called and told me that the job is too small and they refused to do the job. Meanwhile I described the job to the woman, the dimensions and the specifics and she agreed but still cancelled it."
Benny C on December 2021
Since 1999, woman-owned and operated Triple H Insulation has been providing Long Island customers with the most comprehensive home evaluation services with the utmost integrity and professionalism. We specialize in all aspects of Insulation and Air Sealing, including open and closed-cell Spray Foam, blown in and dense-packed cellulose, crawl space encapsulation and dehumidification. We can perform a free evaluation of your home from your basement or crawlspace to your attic. As a woman-owned company, we are committed to treating everyone with equal respect and focus on direct communication with all the household decision makers so each person is engaged in the process. Our skilled comfort consultants use building science principles to help our clients reduce energy costs and improve their homes' comfort. We hold a Gold Star designation from the Building Performance Institute (BPI.org) and our staff is Gold Star BPI certified. Triple H has Home Improvement Licenses in Suffolk, Nassau and NYC. See our great before and after photos on triplehcontracting.com.
"They are supposed to come tomorrow, they agreed on that. They called and told me that the job is too small and they refused to do the job. Meanwhile I described the job to the woman, the dimensions and the specifics and she agreed but still cancelled it."
Benny C on December 2021
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
"Really happy with the work performed. Great communication, they arrived when they said they would, and quickly and successfully repaired the issue!"
Steven G on June 2024
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
"Really happy with the work performed. Great communication, they arrived when they said they would, and quickly and successfully repaired the issue!"
Steven G on June 2024
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
"The job was done quickly and so far the system works great. We are happy we went with KS Mechanical."
Stacey S on March 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
"The job was done quickly and so far the system works great. We are happy we went with KS Mechanical."
Stacey S on March 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!!
"Joe was great! Put my sofas together. Cleaned up boxes, debris. I had a question and he came back (he was nearby) to help me :)"
Eve S on January 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!!
"Joe was great! Put my sofas together. Cleaned up boxes, debris. I had a question and he came back (he was nearby) to help me :)"
Eve S on January 2025
We are an owner operated Heating & A/C company. We offer installation, repair, and maintenance of various HVAC Systems. The company is staffed by experienced and knowledgeable professionals who are certified and licensed to perform these jobs.
"Jason is professional, responsive and works cleanly. Have used his services many times and have recommended him to family."
Brendon L on July 2024
We are an owner operated Heating & A/C company. We offer installation, repair, and maintenance of various HVAC Systems. The company is staffed by experienced and knowledgeable professionals who are certified and licensed to perform these jobs.
"Jason is professional, responsive and works cleanly. Have used his services many times and have recommended him to family."
Brendon L on July 2024
Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!
"Initially, working with Universe went very well when we replaced a central air unit and installed a single-head and triple-head ductless unit... for about 1 season. After that, numerous issues arose (under warranty) from full line-replacement on the ductless units to having to come back to repair a wired connection that was reversed. This caused the AC to not work and have lots of moisture leak through our units. Additionally, pretty much EVERY season we have had an issue with our "brand new efficient systems" not working or failing. We leveraged the warranty and figured all the "kinks" of the installation were worked out over the first few years. Now, with the warranty expired for a year, we have had to have them back to our house several times with a service charge with absolutely zero consideration for the large project we have done with them and our dedicated customer history. We paid for those, thinking we would be done with repairs, as the tech said... Two days ago, with one single-head unit not powering up, they wanted to charge $285 just to show up to take a look at the issue... couldn't even send someone over when convenient to take a quick look... Severely disappointed in this "family business" that treats loyal/dedicated customers as a number. Their installation of ductless systems seems mediocre at best."
Keith M on August 2022
Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!
"Initially, working with Universe went very well when we replaced a central air unit and installed a single-head and triple-head ductless unit... for about 1 season. After that, numerous issues arose (under warranty) from full line-replacement on the ductless units to having to come back to repair a wired connection that was reversed. This caused the AC to not work and have lots of moisture leak through our units. Additionally, pretty much EVERY season we have had an issue with our "brand new efficient systems" not working or failing. We leveraged the warranty and figured all the "kinks" of the installation were worked out over the first few years. Now, with the warranty expired for a year, we have had to have them back to our house several times with a service charge with absolutely zero consideration for the large project we have done with them and our dedicated customer history. We paid for those, thinking we would be done with repairs, as the tech said... Two days ago, with one single-head unit not powering up, they wanted to charge $285 just to show up to take a look at the issue... couldn't even send someone over when convenient to take a quick look... Severely disappointed in this "family business" that treats loyal/dedicated customers as a number. Their installation of ductless systems seems mediocre at best."
Keith M on August 2022
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! Free Estimates!
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! Free Estimates!
We have been in the Real Estate business for over 25 years. Owner of the company has extensive experience in every aspect of a home building and maintainance process. As an HVAC services provider we have helped countless customers to get their needs met and or exceeded their expectations. We are approved by NYSERDA ( NYS) Special financing offer for Heat Pump through which we are able to offer loans up to $25,000 with interest rates as low as 4% with terms up to 15 years! keep the payments Affordable and low. We are also Approved Contractor for Con Edison Rebate program, Saving our customers Thousands. Most of our jobs are completed in One Day! Call us today and lets get your Heating & Cooling issues resolved. We do not offer Boiler services.
"Was happy with the work and product installed"
Anthony I on February 2025
We have been in the Real Estate business for over 25 years. Owner of the company has extensive experience in every aspect of a home building and maintainance process. As an HVAC services provider we have helped countless customers to get their needs met and or exceeded their expectations. We are approved by NYSERDA ( NYS) Special financing offer for Heat Pump through which we are able to offer loans up to $25,000 with interest rates as low as 4% with terms up to 15 years! keep the payments Affordable and low. We are also Approved Contractor for Con Edison Rebate program, Saving our customers Thousands. Most of our jobs are completed in One Day! Call us today and lets get your Heating & Cooling issues resolved. We do not offer Boiler services.
"Was happy with the work and product installed"
Anthony I on February 2025
All Weather Heating & Cooling has been serving Nassau & Suffolk County of Long Island since 1969. We are now celebrating 54 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 54 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
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!
"Varsity is an exceptional company. I highly recommend them to anyone seeking water filtration or general plumbing services. What truly sets Varsity apart is their honesty, kindness, and hard work. Their dedication to their craft is evident in the meticulousness of their work. Thank you for another job well done!"
Kayla G on March 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!
"Varsity is an exceptional company. I highly recommend them to anyone seeking water filtration or general plumbing services. What truly sets Varsity apart is their honesty, kindness, and hard work. Their dedication to their craft is evident in the meticulousness of their work. Thank you for another job well done!"
Kayla G on March 2025
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.
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