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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon37
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Peconic

Avatar for MSD Heating & Cooling

MSD Heating & Cooling

4.92(
60
)
Approved Pro

MSD Heating & Cooling

4.92(
60
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
24 years of experience

NOTE I M SORRY FOR ALL , WE NOT DOING ANY TYPE OF PLUMBING, WORK. OIL FURNACE,OIL BOILER , OIL HOT WATER HEATER, WE ARE DOING GAS FURNACE, AND HEAT PUMP SYSTEM HEATING AND AIR CONDITIONING.THAT'S ALL , WE DONT DO BASEBOARD, RADIANT,ANY OIL APPLIANCE OR PLUMBING WORK . THANKS FOR UNDERSTANDING. MSD Heating and Cooling is now offering free estimates for all AC replacements and new installations. We have been in the business for over 18 years and we've been lucky enough to learn a thing or two over those years. We've even worked hard to make sure that our staff knows the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal!

"Reasonable price great work friendly and very clean staff"

Huseyin a on May 2022

NOTE I M SORRY FOR ALL , WE NOT DOING ANY TYPE OF PLUMBING, WORK. OIL FURNACE,OIL BOILER , OIL HOT WATER HEATER, WE ARE DOING GAS FURNACE, AND HEAT PUMP SYSTEM HEATING AND AIR CONDITIONING.THAT'S ALL , WE DONT DO BASEBOARD, RADIANT,ANY OIL APPLIANCE OR PLUMBING WORK . THANKS FOR UNDERSTANDING. MSD Heating and Cooling is now offering free estimates for all AC replacements and new installations. We have been in the business for over 18 years and we've been lucky enough to learn a thing or two over those years. We've even worked hard to make sure that our staff knows the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal!

"Reasonable price great work friendly and very clean staff"

Huseyin a on May 2022


Allined Mechanical

4.92(
74
)
Approved Pro

Allined Mechanical

4.92(
74
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
6 years of experience

Allined Mechanical, 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 project. We look forward to earning your business!

"Competent, professional, expert service. They did a very thorough, neat job in repairing my unit. Replaced what was necessary and cleaned up. Plus, they kept me in the loop the whole time. Very transparent, very fair, straight forward people. I highly recommend them—plus, they contacted me the next day after the job they did for us to make sure all was well!"

Dean P on August 2025

Allined Mechanical, 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 project. We look forward to earning your business!

"Competent, professional, expert service. They did a very thorough, neat job in repairing my unit. Replaced what was necessary and cleaned up. Plus, they kept me in the loop the whole time. Very transparent, very fair, straight forward people. I highly recommend them—plus, they contacted me the next day after the job they did for us to make sure all was well!"

Dean P on August 2025


Chortani Services HVAC

4.81(
177
)
Approved Pro

Chortani Services HVAC

4.81(
177
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
34 years of experience

Welcome to Chortani Services HVAC. We have been servicing the Brooklyn area for more than 20 years. If there is ever a problem with your heating or air conditioning, we can take care of it. Over the years we have seen just about everything and fixed it all. We always ensure great communication on every project we undertake so that there are never any issues that can't be quickly taken care of. Contact us today for an estimate.

"I had a really positive experience with Chortani. I needed a central air conditioning system totally replaced and Mongi did a professional, clean, thorough installation. He came when he said he would come, and performed the job on time and in the given time frame. The one thing that I appreciated was his honesty and integrity in performing this replacement. I have to say, Chortani did a wonderful job and I am really pleased. I recommend Chortani 100%."

Pat B on November 2025

Welcome to Chortani Services HVAC. We have been servicing the Brooklyn area for more than 20 years. If there is ever a problem with your heating or air conditioning, we can take care of it. Over the years we have seen just about everything and fixed it all. We always ensure great communication on every project we undertake so that there are never any issues that can't be quickly taken care of. Contact us today for an estimate.

"I had a really positive experience with Chortani. I needed a central air conditioning system totally replaced and Mongi did a professional, clean, thorough installation. He came when he said he would come, and performed the job on time and in the given time frame. The one thing that I appreciated was his honesty and integrity in performing this replacement. I have to say, Chortani did a wonderful job and I am really pleased. I recommend Chortani 100%."

Pat B on November 2025


Avatar for Pop Audio

Pop Audio

5.00(
19
)
Approved Pro

Pop Audio

5.00(
19
)
Approved Pro
Super Service Award
Customers say: Quality work
3 years of experience
Free onsite estimate

At POP Audio, we believe in keeping things real and straightforward. When it comes to your Residential A/V needs, we've got you covered with a no-nonsense approach. We take the time to understand your unique requirements and budget, ensuring you get the perfect audio and visual setup without any unnecessary frills. We're not about flashy sales pitches; we're about delivering top-notch products and services that fit seamlessly into your home, elevating your entertainment experience. With our reliable solutions, personalized guidance, and genuine passion for A/V, you can trust us to bring your home entertainment dreams to life without the hassle. Choose POP Audio and experience residential A/V done right.

"Ken and Nick were super professional and very nice/easy to work with! I will definitely be using them again :)."

Allison D on October 2025

At POP Audio, we believe in keeping things real and straightforward. When it comes to your Residential A/V needs, we've got you covered with a no-nonsense approach. We take the time to understand your unique requirements and budget, ensuring you get the perfect audio and visual setup without any unnecessary frills. We're not about flashy sales pitches; we're about delivering top-notch products and services that fit seamlessly into your home, elevating your entertainment experience. With our reliable solutions, personalized guidance, and genuine passion for A/V, you can trust us to bring your home entertainment dreams to life without the hassle. Choose POP Audio and experience residential A/V done right.

"Ken and Nick were super professional and very nice/easy to work with! I will definitely be using them again :)."

Allison D on October 2025


Avatar for Surefire Mechanical Corporation

Surefire Mechanical Corporation

4.68(
146
)
Approved Pro

Surefire Mechanical Corporation

4.68(
146
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 years of experience

Surefire Mechanical Corporation specializes in HVAC repair and is ready to be your go-to Long Island plumber as well! We install and service all forms of residential and light commercial heating and air conditioning equipment, as well as offering various plumbing and electrical services!

"I sent a message to the company in the late evening regarding my broken central AC and Jason was here Tuesday morning to look at it. He tried to repair it but was not able to due to the age of the unit and the damage. We needed a new unit and he was here to put it in first thing Wednesday morning. Took him two hours and our AC was working. He was nice and professional. We felt the price was reasonable. Would use him again and recommend his business."

Janelle L on August 2022

Surefire Mechanical Corporation specializes in HVAC repair and is ready to be your go-to Long Island plumber as well! We install and service all forms of residential and light commercial heating and air conditioning equipment, as well as offering various plumbing and electrical services!

"I sent a message to the company in the late evening regarding my broken central AC and Jason was here Tuesday morning to look at it. He tried to repair it but was not able to due to the age of the unit and the damage. We needed a new unit and he was here to put it in first thing Wednesday morning. Took him two hours and our AC was working. He was nice and professional. We felt the price was reasonable. Would use him again and recommend his business."

Janelle L on August 2022


Avatar for Mayjac Plumbing, Inc.

Mayjac Plumbing, Inc.

4.92(
13
)
Approved Pro

Mayjac Plumbing, Inc.

4.92(
13
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

At MayJac Plumbing Inc. we're dedicated to providing our clients with the very best service, installation, and repairs for all phases of their plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail we put into each of the projects we're involved with. Our goal at MayJac is to maintain a relationship with every customer for life. MayJac Plumbing Inc. is fully licensed and insured. We have over 18 years of experience. Call us today at (631) 909-1829 to discuss your all plumbing needs!

"Joe was great."

Nicholas U on June 2024

At MayJac Plumbing Inc. we're dedicated to providing our clients with the very best service, installation, and repairs for all phases of their plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail we put into each of the projects we're involved with. Our goal at MayJac is to maintain a relationship with every customer for life. MayJac Plumbing Inc. is fully licensed and insured. We have over 18 years of experience. Call us today at (631) 909-1829 to discuss your all plumbing needs!

"Joe was great."

Nicholas U on June 2024


Tri Seasonal Plumbing, Inc.

4.64(
14
)
Approved Pro

Tri Seasonal Plumbing, Inc.

4.64(
14
)
Approved Pro
1 years of experience
Free onsite estimate

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.

"I Had my new gas stove delivered, they installed my new appliance as requested. "

Tiffany M on December 2025

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.

"I Had my new gas stove delivered, they installed my new appliance as requested. "

Tiffany M on December 2025


Avatar for Neversweat Property Management

Neversweat Property Management

5.00(
4
)
Approved Pro

Neversweat Property Management

5.00(
4
)
Approved Pro
Customers say: Quick response
3 years of experience
Free onsite estimate

Neversweat Property Management specializes in the care and maintenance of properties in the picturesque East End of Long Island. Our dedicated team offers a comprehensive range of services, including property management, seasonal house care, and handyman repairs. With a passion for excellence and a commitment to property owners, we ensure that each property thrives, allowing our clients to enjoy peace of mind and the full experience of East End living. At Neversweat, we take care of your property as if it were our own, making your investment our responsibility.

"Everything went great, went over and above to make sure that we were pleased with the job."

carlos f on November 2023

Neversweat Property Management specializes in the care and maintenance of properties in the picturesque East End of Long Island. Our dedicated team offers a comprehensive range of services, including property management, seasonal house care, and handyman repairs. With a passion for excellence and a commitment to property owners, we ensure that each property thrives, allowing our clients to enjoy peace of mind and the full experience of East End living. At Neversweat, we take care of your property as if it were our own, making your investment our responsibility.

"Everything went great, went over and above to make sure that we were pleased with the job."

carlos f on November 2023


"Too expensive and they want people to live in that house help him and charge a lot money for small project no good."

Roberto P on May 2020

Over 18 years of experience makes Handy Hubby your one stop shop for all handyman needs. We are a client-focused company that strives for customer satisfaction.

"Too expensive and they want people to live in that house help him and charge a lot money for small project no good."

Roberto P on May 2020


Avatar for Long Island HVAC

Long Island HVAC

3.67(
3
)
Approved Pro

Long Island HVAC

3.67(
3
)
Approved Pro
Customers say: Quick response
14 years of experience
Free onsite estimate

Long Island HVAC Inc., where service meets integrity. We are the company that treats you right even after the work is completed. Contact us for a free estimate! With so many contractor companies to choose from choose the one that was built on the belief system of integrity. We know that one of the most important aspects of your home is the quality and performance of your heating and cooling system. Whether during the hot-humid summer or the bitter-cold winter, making sure that the inside of your home stays at a constant, comfortable temperature is of paramount importance. It is our goal to provide all of our customers with the courteous attention they deserve, any time of the day, every day of the year. Long Island HVAC, Inc. is gearing up for winter. Contact us for a free Heating estimate today!

"where do i start .. from a good company being honorable 7 years ago to a shady sketchy company... called the owner RAY recently as my minisplit crashed and died asked if he could come and replace it if i got a new one he said yes he would schedual it ... in conversation all they were to do was replace inside unit outside unit and recharge and be gone/done.. they showed up LATE they chose on their own to rip out the entire system and rewire it leaving holes in the siding that was not discussed (meanwhile i was here on site and so was family member that could call me and facetime if there was a concern) they route the drain line over a casement window as opposed to running it to the drain that was there so now i have possibly water damage issues called the owner he said they told him i told them what to do which was NOT the case (on video) they left a wire hanging out exposed to elements for no reason at all the owner comes by a few days later to 'fix' the issue says not fixing it "

Oren S on July 2025

Long Island HVAC Inc., where service meets integrity. We are the company that treats you right even after the work is completed. Contact us for a free estimate! With so many contractor companies to choose from choose the one that was built on the belief system of integrity. We know that one of the most important aspects of your home is the quality and performance of your heating and cooling system. Whether during the hot-humid summer or the bitter-cold winter, making sure that the inside of your home stays at a constant, comfortable temperature is of paramount importance. It is our goal to provide all of our customers with the courteous attention they deserve, any time of the day, every day of the year. Long Island HVAC, Inc. is gearing up for winter. Contact us for a free Heating estimate today!

"where do i start .. from a good company being honorable 7 years ago to a shady sketchy company... called the owner RAY recently as my minisplit crashed and died asked if he could come and replace it if i got a new one he said yes he would schedual it ... in conversation all they were to do was replace inside unit outside unit and recharge and be gone/done.. they showed up LATE they chose on their own to rip out the entire system and rewire it leaving holes in the siding that was not discussed (meanwhile i was here on site and so was family member that could call me and facetime if there was a concern) they route the drain line over a casement window as opposed to running it to the drain that was there so now i have possibly water damage issues called the owner he said they told him i told them what to do which was NOT the case (on video) they left a wire hanging out exposed to elements for no reason at all the owner comes by a few days later to 'fix' the issue says not fixing it "

Oren S on July 2025

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Heating and Air Conditioning questions, answered by experts

No, you should not run an air conditioner with a Freon leak. If you think your AC unit is leaking refrigerant, shut it off immediately. When you keep using a leaky air conditioner, it could damage the unit and release more refrigerant. After turning off the AC, have an HVAC pro come take a look at the unit.

Yes, it’s best to turn off an AC unit that’s blowing hot air to prevent system damage and avoid expensive energy bills. If you let the AC continue running, it will put more strain on the condenser coil and compressor. Plus, if the AC is blowing hot air because of a refrigerant leak, it can also lead to a frozen evaporator coil.

When the capacitor fails, the AC unit can’t operate at all. The most common sign is the thermostat forcing the blower to turn on, but it only circulates room-temperature air. The AC unit also won’t make any noise or indication that it’s on. Sometimes, the compressor might hum as it attempts to work, but without any results.

Before a full shutdown, a faulty capacitor can cause your AC to struggle while turning on. The unit might also shut down in the middle of a cooling cycle.

There are several steps you can take to prevent your AC drain from clogging. This includes cleaning the drain line at least every three months, changing the filter every one to three months, and getting your AC serviced annually. Also, if any problems arise with your AC, hire an HVAC technician to deal with them ASAP.

The difference between a home surge protector and an HVAC surge protector is that an HVAC surge protector is designed to protect the components inside your HVAC unit while a home surge protector is installed near appliances and meant to protect your entire home. There are three tiers of whole-house surge protectors, and they are more expensive to install than HVAC surge protectors.

The Peconic, 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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