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Heating and air conditioning pros in Syosset

On Time Piping and Heating LTD.
9963 164th Ave
4.84(
90
)
Approved Pro
On Time Piping and Heating LTD.
9963 164th Ave
4.84(
90
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
12 local quotes requested

On Time Piping and Heating LTD. 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.

"Boiler broke down this week. Matty was first to respond. Told me would see me next day & he did. On time, literally, disciplined, caring & very clear in communicating expectations. He listens then tells you pros and cons. Although very busy, you do not feel shortchanged if he needs to run to another emergency. He makes sure to be the first one to arrive, sets up his crew (excellent crew too), tells them exactly what & how he wants things done, & patient answering probably redundant questions. He is fair in pricing & gives good advice. His crew is skilled, quiet and fast. Do more than what is expected. In my case, they secured loose pipes, replaced pieces that were old, & even bought a dead radiator back to life (had not worked in years). Doc, the electrician wrapped things afterwards. Very thorough & organized and again, arrived when he said he would. The place was left clean and all debris & boiler was taken by them. I hit the lotto with Matty, one in a million!"

Ginny V on December 2024

On Time Piping and Heating LTD. 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.

"Boiler broke down this week. Matty was first to respond. Told me would see me next day & he did. On time, literally, disciplined, caring & very clear in communicating expectations. He listens then tells you pros and cons. Although very busy, you do not feel shortchanged if he needs to run to another emergency. He makes sure to be the first one to arrive, sets up his crew (excellent crew too), tells them exactly what & how he wants things done, & patient answering probably redundant questions. He is fair in pricing & gives good advice. His crew is skilled, quiet and fast. Do more than what is expected. In my case, they secured loose pipes, replaced pieces that were old, & even bought a dead radiator back to life (had not worked in years). Doc, the electrician wrapped things afterwards. Very thorough & organized and again, arrived when he said he would. The place was left clean and all debris & boiler was taken by them. I hit the lotto with Matty, one in a million!"

Ginny V on December 2024


Avatar for Islandwide Plumbing and Heating, LLC
Islandwide Plumbing and Heating, LLC
170 Delaware Avenue
5.00(
1
)
Approved Pro
Islandwide Plumbing and Heating, LLC
170 Delaware Avenue
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

At Islandwide Plumbing and Heating LLC I pride my company on reliability, great communication, integrity, and quality work. I am an expert in my trade and will do my best to keep you as educated as I can on your particular task or project. I look forward to earning your business!

"He is an awesome guy to work with! I would highly recommend him!"

Todd Y on August 2020

At Islandwide Plumbing and Heating LLC I pride my company on reliability, great communication, integrity, and quality work. I am an expert in my trade and will do my best to keep you as educated as I can on your particular task or project. I look forward to earning your business!

"He is an awesome guy to work with! I would highly recommend him!"

Todd Y on August 2020


Avatar for Mr. Big Plumbing & Heating
Mr. Big Plumbing & Heating
38 Brefni Street
4.88(
13
)
Approved Pro
Mr. Big Plumbing & Heating
38 Brefni Street
4.88(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Big Plumbing and Heating, Inc., is your local contractor with over 20 years experience in taking care of all your needs. We do installs and service work for Suffolk and Nassau Counties. Call Today!

"Andre is very knowledgeable about the job. He not only fix the problem but also advise the necessary preventative action."

Victor P on April 2024

Big Plumbing and Heating, Inc., is your local contractor with over 20 years experience in taking care of all your needs. We do installs and service work for Suffolk and Nassau Counties. Call Today!

"Andre is very knowledgeable about the job. He not only fix the problem but also advise the necessary preventative action."

Victor P on April 2024


Avatar for M and L Appliance
M and L Appliance
29 Bedell Street
4.25(
40
)
Approved Pro
M and L Appliance
29 Bedell Street
4.25(
40
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
35 years of experience

At M and L Appliance, 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 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. Call us today!

"I was very pleased with their service. My washing machine had broken and was very expensive to repair. In purchasing my new machine through M and L, the service fee from the first visit was deducted, and the price of the machine completely reasonable. They took away my old machine, brought the new machine, hooked everything up, and showed me the differences between my old machine and my new machine. I was very pleased with their service and their promptness. Both of the gentleman who came to my house or a professional, polite, and friendly. I highly recommend this this company."

Tracy R on March 2020

At M and L Appliance, 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 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. Call us today!

"I was very pleased with their service. My washing machine had broken and was very expensive to repair. In purchasing my new machine through M and L, the service fee from the first visit was deducted, and the price of the machine completely reasonable. They took away my old machine, brought the new machine, hooked everything up, and showed me the differences between my old machine and my new machine. I was very pleased with their service and their promptness. Both of the gentleman who came to my house or a professional, polite, and friendly. I highly recommend this this company."

Tracy R on March 2020


MEL Modern Air Conditioning & Heating, Inc.
11 Munson St
New on HomeAdvisorNew on Angi
Approved Pro
MEL Modern Air Conditioning & Heating, Inc.
11 Munson St
New on AngiNew on HomeAdvisor
Approved Pro
12 years of experience
Free onsite estimate

MEL Modern Air Cond and Heating Inc. has the experience and knowledge necessary to make sure that your project is completed on time with quality service and workmanship. We strive to complete each project on time and at or under budget. Our many years of have given us the knowledge and skills needed to accomplish this from day one and throughout the duration of the project. Your satisfaction is important to us. Let us show you the difference true professionalism can mean to you. It?s all about the customer and what YOU want, plain and simple. Positive attitudes, responsible, reliable, fast and perfect! If you want professional work, positive attitudes, strive for perfection, clean work places, fast work and caring contractors, then you want MEL Modern Air Cond and Heating Inc. to do your work! Thank you for considering MEL Modern Air Cond and Heating Inc. and we look forward to impressing you!

MEL Modern Air Cond and Heating Inc. has the experience and knowledge necessary to make sure that your project is completed on time with quality service and workmanship. We strive to complete each project on time and at or under budget. Our many years of have given us the knowledge and skills needed to accomplish this from day one and throughout the duration of the project. Your satisfaction is important to us. Let us show you the difference true professionalism can mean to you. It?s all about the customer and what YOU want, plain and simple. Positive attitudes, responsible, reliable, fast and perfect! If you want professional work, positive attitudes, strive for perfection, clean work places, fast work and caring contractors, then you want MEL Modern Air Cond and Heating Inc. to do your work! Thank you for considering MEL Modern Air Cond and Heating Inc. and we look forward to impressing you!


Avatar for Varsity Home Service Company, Inc.
Varsity Home Service Company, Inc.
1610 Ocean Avenue
4.79(
183
)
Approved Pro
Varsity Home Service Company, Inc.
1610 Ocean Avenue
4.79(
183
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
50 local quotes requested

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!

"This is my first time using Varsity Plumbing and I will use them from now on! The technician, Marc, was top notch! He was professional, courteous, knowledgeable, thorough and caring. My experience with Varsity was excellent from start to finish. The office staff was courteous and professional. They followed up on my appointment and called me when they said they would to let me know the technician was on his way. The technician, Marc, arrived on time fully prepared for the job. I learned that Marc had even made sure to stop and get extra parts for my job so that he was making sure to be fully prepared and equipped for whatever he might need to get the job done. I am totally happy with the work they did. My toilets are running perfectly now. These guys are amazing. They can now count me as one of their loyal customers. I highly recommend them!"

Randy K 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!

"This is my first time using Varsity Plumbing and I will use them from now on! The technician, Marc, was top notch! He was professional, courteous, knowledgeable, thorough and caring. My experience with Varsity was excellent from start to finish. The office staff was courteous and professional. They followed up on my appointment and called me when they said they would to let me know the technician was on his way. The technician, Marc, arrived on time fully prepared for the job. I learned that Marc had even made sure to stop and get extra parts for my job so that he was making sure to be fully prepared and equipped for whatever he might need to get the job done. I am totally happy with the work they did. My toilets are running perfectly now. These guys are amazing. They can now count me as one of their loyal customers. I highly recommend them!"

Randy K on March 2025


Avatar for Baez HVAC
Baez HVAC
1281 William Floyd Parkway
5.00(
17
)
Approved Pro
Baez HVAC
1281 William Floyd Parkway
5.00(
17
)
Approved Pro
4 years of experience
Free onsite estimate

Baezhvac 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.

"The owner is so polite and knowledgeable. I felt at ease within a minute of speaking to him. My AC unit wasn’t working and they were there and fixed it within the day. It was a blown motor on the condenser. They also looked up the manufacturer warranty on the unit and found that the part was covered still and got me the money back for the part. Another company originally installed the unit a couple years prior and did a poor job wiring and didn’t level it properly so they cleaned that up and fixed it. Excellent job. Unbearable pricing. White glove service!"

Jake S on March 2025

Baezhvac 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.

"The owner is so polite and knowledgeable. I felt at ease within a minute of speaking to him. My AC unit wasn’t working and they were there and fixed it within the day. It was a blown motor on the condenser. They also looked up the manufacturer warranty on the unit and found that the part was covered still and got me the money back for the part. Another company originally installed the unit a couple years prior and did a poor job wiring and didn’t level it properly so they cleaned that up and fixed it. Excellent job. Unbearable pricing. White glove service!"

Jake S on March 2025


Avatar for Erskine Technical Services
Erskine Technical Services
266 E 91st ST
New on HomeAdvisorNew on Angi
Approved Pro
Erskine Technical Services
266 E 91st ST
New on AngiNew on HomeAdvisor
Approved Pro
6 years of experience
Free onsite estimate

Service Heating and Cooling equipment and Solar Energy Systems. We perform Consultancy and Inspections services for residential and commercial facilities.

Service Heating and Cooling equipment and Solar Energy Systems. We perform Consultancy and Inspections services for residential and commercial facilities.


C&A Mechanical
21 Mara Road
4.77(
68
)
Approved Pro
C&A Mechanical
21 Mara Road
4.77(
68
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
28 years of experience

Here at C&A Mechanical, we have more than 30 years of heating and air conditioning experience. We provide quality work and continue our education and knowledge about the industry. Give us a call.

"Punctual, professional and job well done."

Manny M on December 2022

Here at C&A Mechanical, we have more than 30 years of heating and air conditioning experience. We provide quality work and continue our education and knowledge about the industry. Give us a call.

"Punctual, professional and job well done."

Manny M on December 2022


Avatar for Joytech Mechanical
Joytech Mechanical
214-73 Jamaica Avenue
4.96(
51
)
Approved Pro
Joytech Mechanical
214-73 Jamaica Avenue
4.96(
51
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 local quotes requested

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Very professional service. Completed installing 1 condenser and 1 air handler unit in one day , Kenny and his technician group was phenomenal in their service, I absolutely recommend this company for their overall work ethics."

Khaled B on March 2024

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Very professional service. Completed installing 1 condenser and 1 air handler unit in one day , Kenny and his technician group was phenomenal in their service, I absolutely recommend this company for their overall work ethics."

Khaled B on March 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.  

The homeowners guide to heating and air conditioning services
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