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TRUSTED BY THORNWOOD, NY HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon205
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Thornwood

Avatar for Sila Heating, Cooling and Plumbing

Sila Heating, Cooling and Plumbing

4.49(
856
)
Approved Pro

Sila Heating, Cooling and Plumbing

4.49(
856
)
Approved Pro
Customers say: Super punctual
376 local quotes requested
36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Did a great job"

Susan S on March 2025

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Did a great job"

Susan S on March 2025


Astacio Plumbing & Heating

4.26(
34
)
Approved Pro

Astacio Plumbing & Heating

4.26(
34
)
Approved Pro
Customers say: Super punctual
251 local quotes requested
21 years of experience

What sets Astacio Plumbing and Heating apart from the rest of the field is the use of cutting edge technology to increase reliability, save you time and money, and improve safety on the job. Rich stays up-to-date on all the latest developments in plumbing and heating technology to determine how best to serve his customers. His trucks all carry the tools to get the job done on time and on budget, with as little disruption as possible. Astacio Plumbing and Heating has also spent years developing strong relationships with the best companies in the plumbing and heating business so that they can provide great service to you, quick delivery of replacement parts, and reasonable prices on excellent products. See website for additional service area. Additional email - [email protected].

"Dreadful experience. We had been customers of Astacio since 2015 when they installed our first tankless boiler which failed completely after 7 years and needed to be replaced in late 2022. ($10,000+) Their second one just stopped working; a dodgy board? The part is under warranty but they want almost $1,000 to replace it in the boiler; probably less than 2 hours work. I thought they used to be a good local business with ties to the community but be careful; their tankless boilers are unreliable and they'll try to rip you off when your heat goes out in the winter. So much for standing by their work. I'll never use them again."

CATHAL C on December 2024

What sets Astacio Plumbing and Heating apart from the rest of the field is the use of cutting edge technology to increase reliability, save you time and money, and improve safety on the job. Rich stays up-to-date on all the latest developments in plumbing and heating technology to determine how best to serve his customers. His trucks all carry the tools to get the job done on time and on budget, with as little disruption as possible. Astacio Plumbing and Heating has also spent years developing strong relationships with the best companies in the plumbing and heating business so that they can provide great service to you, quick delivery of replacement parts, and reasonable prices on excellent products. See website for additional service area. Additional email - [email protected].

"Dreadful experience. We had been customers of Astacio since 2015 when they installed our first tankless boiler which failed completely after 7 years and needed to be replaced in late 2022. ($10,000+) Their second one just stopped working; a dodgy board? The part is under warranty but they want almost $1,000 to replace it in the boiler; probably less than 2 hours work. I thought they used to be a good local business with ties to the community but be careful; their tankless boilers are unreliable and they'll try to rip you off when your heat goes out in the winter. So much for standing by their work. I'll never use them again."

CATHAL C on December 2024


Avatar for Petro Home Services

Petro Home Services

4.44(
98
)
Approved Pro

Petro Home Services

4.44(
98
)
Approved Pro
Customers say: True professional
580 local quotes requested
122 years of experience

With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

"Worst service I’ve ever have experienced. They wanted to sell me the product, never told me that there was an early termination fee and another penalty for an initial offer they gave me. Had double charges every month, once for the oil they provided (which they never told me they were going to provide before coming. They just came without my knowledge and then I find a high amount bill) and another for an “automatic payment” for 500 that they never could explain. The didn’t even fix this issue and it kept happening every month even after I cancelled the service. Then having to call them is a hastié for the refund of the 500. Stay away of this company"

Axel R on January 2023

With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

"Worst service I’ve ever have experienced. They wanted to sell me the product, never told me that there was an early termination fee and another penalty for an initial offer they gave me. Had double charges every month, once for the oil they provided (which they never told me they were going to provide before coming. They just came without my knowledge and then I find a high amount bill) and another for an “automatic payment” for 500 that they never could explain. The didn’t even fix this issue and it kept happening every month even after I cancelled the service. Then having to call them is a hastié for the refund of the 500. Stay away of this company"

Axel R on January 2023


Avatar for Fajardo Plumbing

Fajardo Plumbing

4.92(
6
)
Approved Pro

Fajardo Plumbing

4.92(
6
)
Approved Pro
Customers say: Quick response
38 local quotes requested
7 years of experience

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.

"Removed broken water heater and replaced all in the same day we contacted them- very satisfied with the experience Would strongly recommend them"

Tim L on August 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 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.

"Removed broken water heater and replaced all in the same day we contacted them- very satisfied with the experience Would strongly recommend them"

Tim L on August 2025


REM Construction & Technical Service

New on AngiNew on Angi
Approved Pro

REM Construction & Technical Service

New on AngiNew on Angi
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!


"Fixed the issue same day of call."

Charles L on October 2024

CNS Heating & Cooling, Inc., is a 3rd generation family owned and operated company. We service, repair and install all makes and models of heating and & air conditioning equipment. CNS Heating & Cooling, Inc., keeps you comfortable all year round!

"Fixed the issue same day of call."

Charles L on October 2024


Avatar for Abel Air Conditioning & Heating Systems

Abel Air Conditioning & Heating Systems

4.52(
23
)
Approved Pro

Abel Air Conditioning & Heating Systems

4.52(
23
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
36 years of experience

We are a father-son owned HVAC business established in 1989. Our work stands out because of a few reasons. First, our attention to detail is of uttermost importance, not only aesthetically, but our heating/cooling calculations are double and triple checked. Secondly, we listen to our customer's needs and customize solutions based upon their specs and bottom line. By far, the best part of the job is getting to know our clientele!

"very satisfied with the work. friendliness and reasonable prices. highly recommended"

Dilia M on December 2022

We are a father-son owned HVAC business established in 1989. Our work stands out because of a few reasons. First, our attention to detail is of uttermost importance, not only aesthetically, but our heating/cooling calculations are double and triple checked. Secondly, we listen to our customer's needs and customize solutions based upon their specs and bottom line. By far, the best part of the job is getting to know our clientele!

"very satisfied with the work. friendliness and reasonable prices. highly recommended"

Dilia M on December 2022


Antonio Massa Company

5.00(
3
)
Approved Pro

Antonio Massa Company

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 local quotes requested

Antonio Massa Company is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 25 years of experience serving New City, NY and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"null"

Mark S on January 2019

Antonio Massa Company is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 25 years of experience serving New City, NY and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"null"

Mark S on January 2019


Avatar for Hammer Time Construction

Hammer Time Construction

5.00(
5
)
Approved Pro

Hammer Time Construction

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
256 local quotes requested

We are providers of construction services in the New York/New Jersey area. Our mission is to maintain the highest quality and professionalism from start to finish. We are confident in our results because all our jobs are custom for the needs of each home. We strive for the highest degree of quality products and workmanship. During the years in business, Salomon has satisfied many customers. It is our reputation of quality work, professionalism, and customer service our customers continue to rely on us for their needs. To understand the expectations of our customers, we take great care to work and communicate with every customer professionally. We base our reputation on service, safety, and quality. Call us today and find out how we can meet all your construction needs!

"Excellent work. On time"

Laurie G on February 2025

We are providers of construction services in the New York/New Jersey area. Our mission is to maintain the highest quality and professionalism from start to finish. We are confident in our results because all our jobs are custom for the needs of each home. We strive for the highest degree of quality products and workmanship. During the years in business, Salomon has satisfied many customers. It is our reputation of quality work, professionalism, and customer service our customers continue to rely on us for their needs. To understand the expectations of our customers, we take great care to work and communicate with every customer professionally. We base our reputation on service, safety, and quality. Call us today and find out how we can meet all your construction needs!

"Excellent work. On time"

Laurie G on February 2025


Avatar for Royal Comfort

Royal Comfort

4.72(
25
)
Approved Pro

Royal Comfort

4.72(
25
)
Approved Pro
Customers say: True professional
13 local quotes requested
13 years of experience

As proud Westchester-based experts, we deliver unrivaled care and service. With two decades of mastery, we specialize in a wide variety of residential and commercial HVAC services. Need assistance day or night? We've got your back, 24/7! Embrace our royal mission: providing top-notch quality for every job. We look forward to providing you with the Royal Comfort treatment you deserve!

"still waiting for service call which is today"

Stephen I on September 2025

As proud Westchester-based experts, we deliver unrivaled care and service. With two decades of mastery, we specialize in a wide variety of residential and commercial HVAC services. Need assistance day or night? We've got your back, 24/7! Embrace our royal mission: providing top-notch quality for every job. We look forward to providing you with the Royal Comfort treatment you deserve!

"still waiting for service call which is today"

Stephen I on September 2025

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Heating and Air Conditioning questions, answered by experts

One of the fastest ways to unfreeze an AC unit is to turn off the unit and, if it’s warm outside, use the fan-only mode to help blow warmer air through the unit to speed up the defrosting process. While it may be tempting to use a hair dryer to defrost the air conditioner, that high heat can damage the coils.

After defrosting, if you can safely solve the issue with a fix like changing the filter, go ahead and do so. Otherwise, call in a pro before turning your AC back on.

Is mold in an air conditioner dangerous? Running an air conditioner with mold isn’t safe because it can spread harmful mold spores throughout your home. These spores may cause respiratory problems, allergies, or aggravate asthma in household members and guests. If you suspect there is mold hiding in your air conditioner, it’s best to stop using the HVAC system until the mold is cleaned to avoid health risks and further contamination.

No. HVAC, which stands for heating, ventilation, and air conditioning, includes all of the systems that work together to regulate a building’s temperature and humidity levels. In comparison, air conditioners only provide cooling. You can have an air conditioner as part of your HVAC system, but not all HVAC systems include air conditioners.

When an evaporator coil becomes faulty, it can result in various problems within your HVAC system. These problems could include reduced cooling or heating capabilities due to ice formation and obstructed airflow, along with increased energy consumption and higher bills. Additionally, a damaged coil may lead to refrigerant leaks, which are environmentally harmful and decrease overall system efficiency.

Ultimately, if not addressed right away, a bad evaporator coil can even lead to a complete failure of your HVAC system. That’s why timely repair or replacement is crucial to maintaining your family’s comfort and your HVAC’s efficiency.

When a compressor gets overheated in central air systems or heat pumps, it can still cool your home for a while until it eventually gives out. If the compressor is chronically overheated and no one addresses the root cause, it will create an incredibly expensive problem when your entire HVAC system breaks down and stops working altogether.

The Thornwood, 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.