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Heating and air conditioning pros in West Sayville

REM Construction & Technical Service
59 Frog Hollow Road
New on HomeAdvisorNew on Angi
Approved Pro
REM Construction & Technical Service
59 Frog Hollow Road
New on AngiNew on HomeAdvisor
Approved Pro
18 years of experience
Free onsite estimate

REM Construction & Technical Service Corporation is dedicated to providing professional quality work and customer service to each client we work with!

REM Construction & Technical Service Corporation is dedicated to providing professional quality work and customer service to each client we work with!


Delia HVAC
37 Arbutus Court
5.00(
5
)
Approved Pro
Delia HVAC
37 Arbutus Court
5.00(
5
)
Approved Pro
Customers say: Quick response
11 years of experience
Free onsite estimate

We have the experience and we are committed to providing quality work and superior customer service. We at Delia HVAC strive to maintain our reputation as a high quality, service oriented company with our main focus being customer satisfaction. Customers are happy and satisfied with our work and trust us to recommend us to their friends and family. Great at communication with customers throughout the project. Over 9 years of experience

"Anthony did a great job. neat and on time The unit works great"

Dan T on January 2025

We have the experience and we are committed to providing quality work and superior customer service. We at Delia HVAC strive to maintain our reputation as a high quality, service oriented company with our main focus being customer satisfaction. Customers are happy and satisfied with our work and trust us to recommend us to their friends and family. Great at communication with customers throughout the project. Over 9 years of experience

"Anthony did a great job. neat and on time The unit works great"

Dan T on January 2025


Avatar for Energywise, Inc.
Energywise, Inc.
2231 5th Avenue
New on HomeAdvisorNew on Angi
Approved Pro
Energywise, Inc.
2231 5th Avenue
New on AngiNew on HomeAdvisor
Approved Pro
40 years of experience
Offers emergency service

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.

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.


Abreu’s A/C & Refrigeration
38 E Chestnut Street
New on HomeAdvisorNew on Angi
Approved Pro
Abreu’s A/C & Refrigeration
38 E Chestnut Street
New on AngiNew on HomeAdvisor
Approved Pro
5 years of experience

Abreu’s A/C & Heating Company is committed to excellence in 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.

Abreu’s A/C & Heating Company is committed to excellence in 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.


Avatar for Aces Plumbing Heating and Cooling, LLC
Aces Plumbing Heating and Cooling, LLC
60 Hudson Ave
4.91(
11
)
Approved Pro
Aces Plumbing Heating and Cooling, LLC
60 Hudson Ave
4.91(
11
)
Approved Pro
1 years of experience
Free onsite estimate

With over 25 years of experience Ace's Plumbing, Heating & Cooling is your trusted choice for all of your contracting needs. We take pride in our work and can assure your satisfaction with your project. Give us a call today for a free estimate!

"They were great! They responded so quickly and arrived within 1/2 hr! They kindly explained what is wrong with my bathtub faucet, replaced the part, and got everything done. Very nice people too! I highly recommend their services! "

Karolina W on February 2025

With over 25 years of experience Ace's Plumbing, Heating & Cooling is your trusted choice for all of your contracting needs. We take pride in our work and can assure your satisfaction with your project. Give us a call today for a free estimate!

"They were great! They responded so quickly and arrived within 1/2 hr! They kindly explained what is wrong with my bathtub faucet, replaced the part, and got everything done. Very nice people too! I highly recommend their services! "

Karolina W on February 2025


Avatar for i Riverdale Construction, Inc.
i Riverdale Construction, Inc.
31 Casino Street, Apartment 1F
4.39(
23
)
Approved Pro
i Riverdale Construction, Inc.
31 Casino Street, Apartment 1F
4.39(
23
)
Approved Pro
Customers say: True professional
24 local quotes requested
11 years of experience

iRiverdale Construction, Inc. is one of New York's elite general contractors, specializing in a diverse range of residential and commercial projects. As a family-owned and operated business with over a decade of experience, we are recognized as masters in our field. Whether you need a concept for your project or want to bring your vision to life, we create stunning works of art tailored to your needs. No matter the size or scope, we apply our unique skill set to ensure your project's success, treating your property with the same care and attention we give our own. Our satisfied repeat customers consistently return to us for new projects, and we are always eager to welcome new clients. Contact us today to schedule an initial consultation and discuss how we can help turn your project into a reality.

"I was looking for a contractor, I was on home advisors and I came across Iriverdale construction. They are #1 on Long Island . The president of Iriverdale construction Raquel Diamond reached out the same day. Came to my home. Wrote me an estimate on site. I wanted customed details renovations . The windows were ordered and installed beautiful . Her team is very professional, hardworking, and polite. I am so happy with the full service I received. Raquel is a joy to work with . She will make your house look beautiful. I want to buy land or another property so Raquel can put her beautiful touch to it . Thank you Iriverdale construction, especially Raquel Diamond . I will recommend to everyone I know"

Adriana V on November 2024

iRiverdale Construction, Inc. is one of New York's elite general contractors, specializing in a diverse range of residential and commercial projects. As a family-owned and operated business with over a decade of experience, we are recognized as masters in our field. Whether you need a concept for your project or want to bring your vision to life, we create stunning works of art tailored to your needs. No matter the size or scope, we apply our unique skill set to ensure your project's success, treating your property with the same care and attention we give our own. Our satisfied repeat customers consistently return to us for new projects, and we are always eager to welcome new clients. Contact us today to schedule an initial consultation and discuss how we can help turn your project into a reality.

"I was looking for a contractor, I was on home advisors and I came across Iriverdale construction. They are #1 on Long Island . The president of Iriverdale construction Raquel Diamond reached out the same day. Came to my home. Wrote me an estimate on site. I wanted customed details renovations . The windows were ordered and installed beautiful . Her team is very professional, hardworking, and polite. I am so happy with the full service I received. Raquel is a joy to work with . She will make your house look beautiful. I want to buy land or another property so Raquel can put her beautiful touch to it . Thank you Iriverdale construction, especially Raquel Diamond . I will recommend to everyone I know"

Adriana V on November 2024


RVM Heating & Air Conditioning
48 Heyward St
New on HomeAdvisorNew on Angi
Approved Pro
RVM Heating & Air Conditioning
48 Heyward St
New on AngiNew on HomeAdvisor
Approved Pro
1285 local quotes requested
5 years of experience

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!


Avatar for KS Mechanical Services
KS Mechanical Services
481 Johnson Ave
4.60(
10
)
Approved Pro
KS Mechanical Services
481 Johnson Ave
4.60(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
473 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

"we are a happy customers Lance knew our situation and tried his best to helped us to save our boiler We had a few emergencies and he was there for us. He also gave us reasonable price. He is very professional. It was a pleasure to have your services."

Mónica C on July 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

"we are a happy customers Lance knew our situation and tried his best to helped us to save our boiler We had a few emergencies and he was there for us. He also gave us reasonable price. He is very professional. It was a pleasure to have your services."

Mónica C on July 2024


Avatar for JACCEL & HEAT MECHANICAL
JACCEL & HEAT MECHANICAL
Based In
5.00(
5
)
Approved Pro
JACCEL & HEAT MECHANICAL
Based In
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

Over at Jaccel & Heat Mechanical we specialize on installs for heating, cooling and refrigeration systems for residential and commercial customers. I have been in the trades for over 22 years. My goal is to provide professionalism, workmanship, efficiency accompanied by competitive pricing that will guarantee customer satisfaction upon job completion.

"We recently had the pleasure of working with JACCEL & HEAT MECHANICAL and we couldn't be happier with the results. From start to finish, their team demonstrated a remarkable level of skill, professionalism, and attention to detail."

Angela P on December 2024

Over at Jaccel & Heat Mechanical we specialize on installs for heating, cooling and refrigeration systems for residential and commercial customers. I have been in the trades for over 22 years. My goal is to provide professionalism, workmanship, efficiency accompanied by competitive pricing that will guarantee customer satisfaction upon job completion.

"We recently had the pleasure of working with JACCEL & HEAT MECHANICAL and we couldn't be happier with the results. From start to finish, their team demonstrated a remarkable level of skill, professionalism, and attention to detail."

Angela P on December 2024


Avatar for Varsity Home Service
Varsity Home Service
1610 Ocean Ave
4.30(
77
)
Approved Pro
Varsity Home Service
1610 Ocean Ave
4.30(
77
)
Approved Pro
Customers say: Super punctual
1715 local quotes requested
63 years of experience

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!

"Excellent caring by Marc. Unfortunately the purpose of the visit was resolved by itself, somehow without Marc’s interference. The issue was with the sink faucet which was not dispensing water, but somehow it reconciled by itself. Marc was very kind and thorough in explaining an action should a recurrence with the faucet exit. We were pleased with his recommendation and would definitely keep Varsity as our contact for future matters."

Fuad W on November 2024

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!

"Excellent caring by Marc. Unfortunately the purpose of the visit was resolved by itself, somehow without Marc’s interference. The issue was with the sink faucet which was not dispensing water, but somehow it reconciled by itself. Marc was very kind and thorough in explaining an action should a recurrence with the faucet exit. We were pleased with his recommendation and would definitely keep Varsity as our contact for future matters."

Fuad W on November 2024

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Heating and air conditioning services FAQs

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an uncertified HVAC pro could lead to poor quality work, costly future expenses, and potential code violations. A certified HVAC technician tackling your home projects protects you as a homeowner.

As you browse our pro listings, take note of the “Angi Certified” badge. Angi Certified 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

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.

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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