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TRUSTED BY HOMEOWNERS

Average homeowner rating star icon4.3
Average homeowner rating
Verified reviews icon178
Verified heating and air conditioning services reviews

Heating and air conditioning pros in Sandy Hook

Avatar for N E Mitchell
N E Mitchell
7 Federal Rd
4.88(
52
)
Approved Pro
N E Mitchell
7 Federal Rd
4.88(
52
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
80 years of experience

Mitchell began in 1945, when Norbert Mitchell returned from Word War II and started his fuel delivery business serving our local Danbury, Connecticut neighbors. Over 75 years and three generations later, we’ve expanded our business to serve all of Western CT and into Westchester and Putnam Counties in NY and the surrounding areas without compromising our commitment to quality, reliability, and convenience. We deliver heating oil, propane, gasoline, diesel, and other fuel sources to our neighbors whenever necessary. Plus, we offer our customers HVAC service, service contracts and access to quality appliance installations, so they don’t have to worry about going anywhere else for their comfort needs. Call today to receive a free quote from a team that will treat you like family.

"They have been excellent, topnotch, and reliable. I would highly recommend them."

Kevin S on August 2020

Mitchell began in 1945, when Norbert Mitchell returned from Word War II and started his fuel delivery business serving our local Danbury, Connecticut neighbors. Over 75 years and three generations later, we’ve expanded our business to serve all of Western CT and into Westchester and Putnam Counties in NY and the surrounding areas without compromising our commitment to quality, reliability, and convenience. We deliver heating oil, propane, gasoline, diesel, and other fuel sources to our neighbors whenever necessary. Plus, we offer our customers HVAC service, service contracts and access to quality appliance installations, so they don’t have to worry about going anywhere else for their comfort needs. Call today to receive a free quote from a team that will treat you like family.

"They have been excellent, topnotch, and reliable. I would highly recommend them."

Kevin S on August 2020


Avatar for Sila Heating, Cooling and Plumbing
Sila Heating, Cooling and Plumbing
55 Lafayette Ave
4.49(
856
)
Approved Pro
Sila Heating, Cooling and Plumbing
55 Lafayette Ave
4.49(
856
)
Approved Pro
Customers say: Super punctual
272 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
PO Box 4382
4.26(
34
)
Approved Pro
Astacio Plumbing & Heating
PO Box 4382
4.26(
34
)
Approved Pro
Customers say: Super punctual
120 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 - tina@astacioplumbing.com.

"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 - tina@astacioplumbing.com.

"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 DME Ductless and HVAC
DME Ductless and HVAC
80 Pond View Drive
5.00(
16
)
Approved Pro
DME Ductless and HVAC
80 Pond View Drive
5.00(
16
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 local quotes requested

Specializing in Mitsubishi ductless spilt installations, DME Ductless and HVAC is built on a commitment to quality. Each job, may it be a single zone project or multi-zone projects, are carefully designed and expertly installed.

"Great service- clear explanations of what was wrong and how it was going to be fixed. I would hire again!"

Sarah S on May 2024

Specializing in Mitsubishi ductless spilt installations, DME Ductless and HVAC is built on a commitment to quality. Each job, may it be a single zone project or multi-zone projects, are carefully designed and expertly installed.

"Great service- clear explanations of what was wrong and how it was going to be fixed. I would hire again!"

Sarah S on May 2024


Avatar for R & R Heating & Cooling
R & R Heating & Cooling
169 Trumbull Ave
5.00(
17
)
Approved Pro
R & R Heating & Cooling
169 Trumbull Ave
5.00(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
40 local quotes requested

R & R Heating & Cooling at your service. We have over 20 years of industry experience and provide our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on honesty and integrity. Most contractors upsell, but I do not. If it can be fixed, I will fix it. We specialize in central A/C, heating and furnace systems in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. There is a 30-day warranty on all our services. We look forward to building long-term relationships with our clients and guarantee your satisfaction! **After 5pm, please leave a voicemail and we will get back to you on the same day for emergencies, or the next day for normal business requests You can also book online on our website**

"I absolutely love this company! They are so knowledgeable and efficient, with a great price! We have used them for 2 properties and will continue to hire again!"

Selina C on September 2024

R & R Heating & Cooling at your service. We have over 20 years of industry experience and provide our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on honesty and integrity. Most contractors upsell, but I do not. If it can be fixed, I will fix it. We specialize in central A/C, heating and furnace systems in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. There is a 30-day warranty on all our services. We look forward to building long-term relationships with our clients and guarantee your satisfaction! **After 5pm, please leave a voicemail and we will get back to you on the same day for emergencies, or the next day for normal business requests You can also book online on our website**

"I absolutely love this company! They are so knowledgeable and efficient, with a great price! We have used them for 2 properties and will continue to hire again!"

Selina C on September 2024


Avatar for Tyler Heating, Air Conditioning and Refrigeration LLC
Tyler Heating, Air Conditioning and Refrigeration LLC
255 Hathaway Dr
4.63(
128
)
Approved Pro
Tyler Heating, Air Conditioning and Refrigeration LLC
255 Hathaway Dr
4.63(
128
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
42 local quotes requested

To a home or business owner in Connecticut, having an effective, efficient, and reliable HVAC system in place is vital. Our summers are hot, and the winters get plenty cold, and that means your equipment needs to be able to keep up if you intend to remain comfortable. That requires the attention and care of heating and cooling contractors that are a cut above. We strive to be absolutely exceptional in all regards! In order to do so, we offer Carrier® products as well as a customized and customer-focused approach to our services. We deliver a team that is knowledgeable, professional, friendly, and above all, one that puts you first. For complete HVAC repair, installation, and maintenance services call or message Tyler Heating, Air Conditioning, Refrigeration LLC!

"Arrived the same day, replaced leaking unit. Very professional and neat."

Paul H on September 2022

To a home or business owner in Connecticut, having an effective, efficient, and reliable HVAC system in place is vital. Our summers are hot, and the winters get plenty cold, and that means your equipment needs to be able to keep up if you intend to remain comfortable. That requires the attention and care of heating and cooling contractors that are a cut above. We strive to be absolutely exceptional in all regards! In order to do so, we offer Carrier® products as well as a customized and customer-focused approach to our services. We deliver a team that is knowledgeable, professional, friendly, and above all, one that puts you first. For complete HVAC repair, installation, and maintenance services call or message Tyler Heating, Air Conditioning, Refrigeration LLC!

"Arrived the same day, replaced leaking unit. Very professional and neat."

Paul H on September 2022


Avatar for Chernin HVAC & Refrigeration, LLC
Chernin HVAC & Refrigeration, LLC
Located In:
5.00(
22
)
Approved Pro
Chernin HVAC & Refrigeration, LLC
Located In:
5.00(
22
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

Seeking a reliable HVAC contractor? Look no further than Chernin HVAC & Refrigeration, LLC. Our commitment to quality, paired with years of industry experience, ensures your HVAC needs are in capable hands. From HVAC installation, HVAC maintenance & repairs, to commercial refrigeration, our team is ready to assist. Experience the unparalleled service and quality that only us can offer. Don’t delay; elevate your HVAC experience now!

"Extremely well. Eli responded very promptly to our inquiry. He came to the house and did appropriate assessments . He gave us several options for what we needed. He came as scheduled to install the system, and followed up on several minor details even after he had been paid in full. I give this business my full endorsement."

Cathy Z on December 2024

Seeking a reliable HVAC contractor? Look no further than Chernin HVAC & Refrigeration, LLC. Our commitment to quality, paired with years of industry experience, ensures your HVAC needs are in capable hands. From HVAC installation, HVAC maintenance & repairs, to commercial refrigeration, our team is ready to assist. Experience the unparalleled service and quality that only us can offer. Don’t delay; elevate your HVAC experience now!

"Extremely well. Eli responded very promptly to our inquiry. He came to the house and did appropriate assessments . He gave us several options for what we needed. He came as scheduled to install the system, and followed up on several minor details even after he had been paid in full. I give this business my full endorsement."

Cathy Z on December 2024


Avatar for J Thurston Fuel
J Thurston Fuel
130 Washington Ave
5.00(
1
)
Approved Pro
J Thurston Fuel
130 Washington Ave
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
139 local quotes requested

J. Thurston Fuel is a full-service fuel delivery company owned and operated by Jim Thurston and Jay Carter. Established in 1998, we service customers in New Haven and Fairfield counties and is one of the premier home heating oil distributors in the state. J. Thurston Fuel is devoted to satisfying the needs and wants of our customers. Our services range from heating oil & propane delivery, new equipment installation and equipment repairs. We are committed to providing the highest quality fast, efficient service, competitively priced to all our customers we serve. From our delivery drivers, to our office staff and service technicians, our employees are friendly, knowledgeable ready to assist you in saving energy and money regarding all your home services needs.

"Very respectful, efficient team. I had only limited time to get this done and they went above and beyond and also had the best price. Great communication throughout the process"

Donald S on September 2024

J. Thurston Fuel is a full-service fuel delivery company owned and operated by Jim Thurston and Jay Carter. Established in 1998, we service customers in New Haven and Fairfield counties and is one of the premier home heating oil distributors in the state. J. Thurston Fuel is devoted to satisfying the needs and wants of our customers. Our services range from heating oil & propane delivery, new equipment installation and equipment repairs. We are committed to providing the highest quality fast, efficient service, competitively priced to all our customers we serve. From our delivery drivers, to our office staff and service technicians, our employees are friendly, knowledgeable ready to assist you in saving energy and money regarding all your home services needs.

"Very respectful, efficient team. I had only limited time to get this done and they went above and beyond and also had the best price. Great communication throughout the process"

Donald S on September 2024


Avatar for Busy Bee Services LLC
Busy Bee Services LLC
16 Ventres Way
5.00(
7
)
Approved Pro
Busy Bee Services LLC
16 Ventres Way
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 local quotes requested

Busy Bee Services proudly serves Connecticut's home owners and businesses. Our goal is to deliver the best HVAC, plumbing, and electrical services in the state. We'll meet & exceed your needs to ensure your 100% satisfaction. Call us today!

"I was very pleased they help me out."

Bernie R on November 2021

Busy Bee Services proudly serves Connecticut's home owners and businesses. Our goal is to deliver the best HVAC, plumbing, and electrical services in the state. We'll meet & exceed your needs to ensure your 100% satisfaction. Call us today!

"I was very pleased they help me out."

Bernie R on November 2021


Avatar for HARP Home Services LLC
HARP Home Services LLC
863 Marshall Phelps Rd
4.57(
444
)
Approved Pro
HARP Home Services LLC
863 Marshall Phelps Rd
4.57(
444
)
Approved Pro
Customers say: Super punctual
156 local quotes requested
33 years of experience

We joined Angie's List in August of 2007 and have earned their Super Service Award every year since 2009 when they started that program. HARP Home Services, LLC is here to take care of all your heating and air conditioning needs. Whether you are looking for a free quote on a new central air conditioning system or are ready to install radiant floor heating or a new boiler for those chilly winter months, we're just a phone call (or e-mail) away. Residential & Commercial.

"We had a furnace installed by Harp on July 8th 2024 after it being diagnosed by their technician as to the reason our ac system was not functioning properly. That’s when our troubles with Harp began. The installation was not done properly, we needed 3 service calls to get the ac to work properly. The installers were sloppy. We cleaned up screws and wire and parts from the old furnace for weeks. When heating season began we noticed that the humidifier installed with the furnace was not operating. We scheduled an appointment to have it repaired and they called the day of the appointment and told us they couldn’t come that day and we had to reschedule, so reluctantly we did. They finally came and repaired it. From what the technician told me it was not wired properly. On January 21st 2025( the coldest night of the year) the furnace stopped working. We called Harp to get someone to come to repair it as we had no heat in below 0º weather I was told the best they could do is to come the next day between 2 and 6 pm. I tried to explain that this was an emergency but to no avail. I called my local oil company and they were at my door within 30 minutes( which I would’ve expected from the company who sold us the furnace) the repaired it quickly and told us that one f the wires on the control panel was not attached properly. It cost me $300. I would NOT recommend Harp to anyone. They are not reliable and do not stand behind their promises of service 24/7. Stay as far away from this company as possible. We are sorry we ever started with them."

john j on January 2025

We joined Angie's List in August of 2007 and have earned their Super Service Award every year since 2009 when they started that program. HARP Home Services, LLC is here to take care of all your heating and air conditioning needs. Whether you are looking for a free quote on a new central air conditioning system or are ready to install radiant floor heating or a new boiler for those chilly winter months, we're just a phone call (or e-mail) away. Residential & Commercial.

"We had a furnace installed by Harp on July 8th 2024 after it being diagnosed by their technician as to the reason our ac system was not functioning properly. That’s when our troubles with Harp began. The installation was not done properly, we needed 3 service calls to get the ac to work properly. The installers were sloppy. We cleaned up screws and wire and parts from the old furnace for weeks. When heating season began we noticed that the humidifier installed with the furnace was not operating. We scheduled an appointment to have it repaired and they called the day of the appointment and told us they couldn’t come that day and we had to reschedule, so reluctantly we did. They finally came and repaired it. From what the technician told me it was not wired properly. On January 21st 2025( the coldest night of the year) the furnace stopped working. We called Harp to get someone to come to repair it as we had no heat in below 0º weather I was told the best they could do is to come the next day between 2 and 6 pm. I tried to explain that this was an emergency but to no avail. I called my local oil company and they were at my door within 30 minutes( which I would’ve expected from the company who sold us the furnace) the repaired it quickly and told us that one f the wires on the control panel was not attached properly. It cost me $300. I would NOT recommend Harp to anyone. They are not reliable and do not stand behind their promises of service 24/7. Stay as far away from this company as possible. We are sorry we ever started with them."

john j on January 2025

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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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