Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Sandy Hook, CT

There are 39 highly-rated local heating and air conditioning pros.

Matching on Angi

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Heating and air conditioning pros in Sandy Hook

Avatar for Pelletier Heating & Air
Pelletier Heating & Air
81 RIVER ST
5.00(
6
)
Approved Pro
Pelletier Heating & Air
81 RIVER ST
5.00(
6
)
Approved Pro
Customers say: Quick response
21 years of experience
Free onsite estimate

Pelletier Heating & Air is proud to be a locally owned and operated business that has been serving the community since 2004. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. With years of experience and unmatched expertise, we can help with any and all of your heating and cooling installation, replacement and service needs. Our customers can count on our techs being timely, tidy and when the job is done, that they will be 100% satisfied with the work completed. Let us show you the Pelletier difference, get in touch today!

"Scott Williams has been servicing my units for years. Very knowledgeable and professional!"

Vic N on January 2024

Pelletier Heating & Air is proud to be a locally owned and operated business that has been serving the community since 2004. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. With years of experience and unmatched expertise, we can help with any and all of your heating and cooling installation, replacement and service needs. Our customers can count on our techs being timely, tidy and when the job is done, that they will be 100% satisfied with the work completed. Let us show you the Pelletier difference, get in touch today!

"Scott Williams has been servicing my units for years. Very knowledgeable and professional!"

Vic N on January 2024


Steve Martin Electric, LLC
6 Greenfield Court
4.90(
550
)
Approved Pro
Steve Martin Electric, LLC
6 Greenfield Court
4.90(
550
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
14 local quotes requested

Steve Martin Electric, LLC is happy to help you with all of your electrical needs. Towns that we service are: New Milford, Sherman, Bridgewater, Brookfield, Danbury, Bethel, Newtown, Ridgefield, Redding, and Southbury. Contact us today for quick services and quality work.

"second time I used his services. nuff sed"

Padric K on January 2025

Steve Martin Electric, LLC is happy to help you with all of your electrical needs. Towns that we service are: New Milford, Sherman, Bridgewater, Brookfield, Danbury, Bethel, Newtown, Ridgefield, Redding, and Southbury. Contact us today for quick services and quality work.

"second time I used his services. nuff sed"

Padric K on January 2025


Avatar for Aire Serv of Shelton
Aire Serv of Shelton
41 Clifton Ave
4.42(
187
)
Approved Pro
Aire Serv of Shelton
41 Clifton Ave
4.42(
187
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
27 local quotes requested

We are a locally owned and operated Franchise. Our dispatching and operations are run from our Ansonia office but we do service all of southern and central Connecticut. There are many reasons to confidently choose Aire Serv as your provider of heater and air conditioning services—both commercial and residential. With more than 200 locations throughout the United States and Canada, Aire Serv is a trusted name in the field of heating and air conditioning installation, maintenance, and repair. We are proud of our reputation for putting clients first and getting the job done right the first time, every time. When your AC goes out in a heat wave or your furnace breaks down in an ice storm, you need emergency service fast! Call our live dispatchers any time. We offer prompt service, trained technicians and flat rate pricing so there is no surprise after the service. It’s good to know Aire Serv is always just a phone call away!

"Great communication and quick turnaround"

Joelvito V on February 2025

We are a locally owned and operated Franchise. Our dispatching and operations are run from our Ansonia office but we do service all of southern and central Connecticut. There are many reasons to confidently choose Aire Serv as your provider of heater and air conditioning services—both commercial and residential. With more than 200 locations throughout the United States and Canada, Aire Serv is a trusted name in the field of heating and air conditioning installation, maintenance, and repair. We are proud of our reputation for putting clients first and getting the job done right the first time, every time. When your AC goes out in a heat wave or your furnace breaks down in an ice storm, you need emergency service fast! Call our live dispatchers any time. We offer prompt service, trained technicians and flat rate pricing so there is no surprise after the service. It’s good to know Aire Serv is always just a phone call away!

"Great communication and quick turnaround"

Joelvito V on February 2025


Avatar for Cangianni Electric, LLC
Cangianni Electric, LLC
2 Pasture Way
4.91(
171
)
Approved Pro
Cangianni Electric, LLC
2 Pasture Way
4.91(
171
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
35 years of experience

I am a Fully Licensed and Insured, Owner operated company serving the State of Connecticut and Westchester County since 1990. Quality work, personable and reliable services all for an affordable price. When you call you get me ! I look at the job, I do the job and I guarantee the job! Thank you !

"He came out quickly, worked quickly was very friendly and helpful! Would definitely recommend."

Laura M on March 2025

I am a Fully Licensed and Insured, Owner operated company serving the State of Connecticut and Westchester County since 1990. Quality work, personable and reliable services all for an affordable price. When you call you get me ! I look at the job, I do the job and I guarantee the job! Thank you !

"He came out quickly, worked quickly was very friendly and helpful! Would definitely recommend."

Laura M on March 2025


Belair Mechanical
271 Eagle Street
4.58(
57
)
Approved Pro
Belair Mechanical
271 Eagle Street
4.58(
57
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
12 local quotes requested

Belair Mechanical, is your complete residential heating and air conditioning service company. Belair Mechanical, is locally owned and operated, we pride ourselves on honesty and reliability and we guarantee satisfaction. We are dedicated to providing the best possible service for you and your family. You can count on us to provide you with a system and solution that fits your family's unique needs. Please give us a call today for a free estimate.

"Fast. Knew the job. Nice people"

louis b on July 2024

Belair Mechanical, is your complete residential heating and air conditioning service company. Belair Mechanical, is locally owned and operated, we pride ourselves on honesty and reliability and we guarantee satisfaction. We are dedicated to providing the best possible service for you and your family. You can count on us to provide you with a system and solution that fits your family's unique needs. Please give us a call today for a free estimate.

"Fast. Knew the job. Nice people"

louis b on July 2024


Avatar for Celco Heating & Air Conditioning
Celco Heating & Air Conditioning
467 Bishop Avenue
4.78(
103
)
Approved Pro
Celco Heating & Air Conditioning
467 Bishop Avenue
4.78(
103
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
34 local quotes requested

CONSISTENCY * DEDICATION TO QUALITY WORK * CUSTOMER SERVICE CELCO Heating and Air Conditioning is a mechanical firm built on 40 years of steadfast ethics and unrivaled attention to detail. The skill sets we possess, allow us to serve our customers in a top-notch manner. The ability to offer Design Build, Installation, Retrofitting and Service Work in a meticulous and enthusiastic fashion - sets us apart from other outfits. We hope you will consider giving CELCO heating and air conditioning the chance to earn your trust.

"Thorough explanation, great service, neat installation and competitive pricing. Would hire again."

Andy S on March 2024

CONSISTENCY * DEDICATION TO QUALITY WORK * CUSTOMER SERVICE CELCO Heating and Air Conditioning is a mechanical firm built on 40 years of steadfast ethics and unrivaled attention to detail. The skill sets we possess, allow us to serve our customers in a top-notch manner. The ability to offer Design Build, Installation, Retrofitting and Service Work in a meticulous and enthusiastic fashion - sets us apart from other outfits. We hope you will consider giving CELCO heating and air conditioning the chance to earn your trust.

"Thorough explanation, great service, neat installation and competitive pricing. Would hire again."

Andy S on March 2024


AIR, Inc.
171 Short Beach Rd.
4.40(
292
)
Approved Pro
AIR, Inc.
171 Short Beach Rd.
4.40(
292
)
Approved Pro
Customers say: Quick response
82 local quotes requested
34 years of experience

Since 1991 AIR, Inc. has been installing heating and Air Conditioning systems for thousands of satisfied clients. Our Ratings and Reviews prove why most people choose AIR, Inc. We offer our services to residential homeowners, if you own a home and need help call us today!

"fast and efficient"

SHERI L B on April 2024

Since 1991 AIR, Inc. has been installing heating and Air Conditioning systems for thousands of satisfied clients. Our Ratings and Reviews prove why most people choose AIR, Inc. We offer our services to residential homeowners, if you own a home and need help call us today!

"fast and efficient"

SHERI L B on April 2024


Avatar for Onofreo Home Comfort Systems, LLC
Onofreo Home Comfort Systems, LLC
85 Waverly Ave
4.97(
33
)
Approved Pro
Onofreo Home Comfort Systems, LLC
85 Waverly Ave
4.97(
33
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 local quotes requested

Onofreo Home Comfort Systems LLC, is your very best option for all your HVAC needs. We always offer the very best pricing, excellent customer service and superior workmanship on every job we do. Call us now!

"work was done on time and right. The price was excellent"

thomas m on June 2024

Onofreo Home Comfort Systems LLC, is your very best option for all your HVAC needs. We always offer the very best pricing, excellent customer service and superior workmanship on every job we do. Call us now!

"work was done on time and right. The price was excellent"

thomas m on June 2024


Thomaston Comfort Control, Inc.
401 McMahon Drive
4.52(
42
)
Approved Pro
Thomaston Comfort Control, Inc.
401 McMahon Drive
4.52(
42
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
39 years of experience

Thomaston Comfort Control, Inc., brings an unmatched commitment to excellence to your HVAC project. We deliver unsurpassed professionalism, expertise and value. Call today.

"Very responsive to questions all along the project. Brought in installer to pre-check and make sure plan would work. Very respectful of property and very timely completion of project. I recommend this company!"

Michael R on May 2022

Thomaston Comfort Control, Inc., brings an unmatched commitment to excellence to your HVAC project. We deliver unsurpassed professionalism, expertise and value. Call today.

"Very responsive to questions all along the project. Brought in installer to pre-check and make sure plan would work. Very respectful of property and very timely completion of project. I recommend this company!"

Michael R on May 2022

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
From average costs to expert advice, get all the answers you need to get your job done.
A family relaxing in the living room
Mar 10, 2025
Mar 10, 2025
Regularly replacing your HVAC filter regularly is vital for a healthy system. Learn how much an HVAC filter replacement costs with this informative guide.
Man removing heat duct
Mar 12, 2025
Mar 12, 2025
Your leaky ductwork may be hiking up your energy bills. We explore the cost of checking air ducts for leaks, which may be worth it for your home.
man doing an inspection on gas boiler
Mar 12, 2025
Mar 12, 2025
If you need to repair a gas boiler or radiator heating system, you should first talk to a pro. Here are the top radiator repair questions you should ask.
A HVAC unit outside a red brick house
Mar 12, 2025
Mar 12, 2025
Wondering if you can use flexible ducts for your HVAC system? Learn the pros and cons of flexible ducts with this guide.
ac ductless mini split system
Mar 12, 2025
Mar 12, 2025
Adding a ductless mini split can be the right choice for a home addition or small space. Review these ductless mini split questions to prep for talking with a pro.
Mom and son playing in the living room
Mar 12, 2025
Mar 12, 2025
HVAC dampers are crucial for maintaining comfortable and consistent temperatures in zoned systems. Learn what a damper is and how it works in this guide.