Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Cos Cob, CT

There are 34 highly-rated local heating and air conditioning pros.

TRUSTED BY COS COB, CT HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon224
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Cos Cob

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
375 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


Avatar for J Thurston Fuel

J Thurston Fuel

5.00(
3
)
Approved Pro

J Thurston Fuel

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
138 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 accommodating to my schedule. Everything neatly done . The final copper work looks like a piece of art. These people know what they are doing make no mistake about that. If you want the best hire this company. They are very knowledgeable and answer all of your questions. They are very easy to work with every step of the way for your project"

Carole O on September 2025

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 accommodating to my schedule. Everything neatly done . The final copper work looks like a piece of art. These people know what they are doing make no mistake about that. If you want the best hire this company. They are very knowledgeable and answer all of your questions. They are very easy to work with every step of the way for your project"

Carole O on September 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
577 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 Candito Plumbing and HVAC, LLC

Candito Plumbing and HVAC, LLC

4.78(
25
)
Approved Pro

Candito Plumbing and HVAC, LLC

4.78(
25
)
Approved Pro
Customers say: True professional
46 local quotes requested
15 years of experience

Candito Plumbing and HVAC LLC, is a full service plumbing and HVAC company. Family owned and operated with over 20 years of combined experience we work with our customers to get the job done. From repairs to new installations we cover it all, no job is too big or too small for our team. Please give us a call today! We look forward to working with you!

"John and his team were great! The job was done professionally and on time. Highly recommend!"

Jim B on November 2025

Candito Plumbing and HVAC LLC, is a full service plumbing and HVAC company. Family owned and operated with over 20 years of combined experience we work with our customers to get the job done. From repairs to new installations we cover it all, no job is too big or too small for our team. Please give us a call today! We look forward to working with you!

"John and his team were great! The job was done professionally and on time. Highly recommend!"

Jim B on November 2025


Avatar for Schede Plumbing & Heating

Schede Plumbing & Heating

4.38(
85
)
Approved Pro

Schede Plumbing & Heating

4.38(
85
)
Approved Pro
Customers say: Super punctual
39 local quotes requested
103 years of experience

In business since 1922 offering heating & plumbing services. When you require plumbing services or installation and service of heating units, turn to Schede Plumbing & Heating. We are experts at plumbing repairs and installations as well as the set up and maintenance of heating control devices for maximum efficiency, longevity, and comfort. Why tolerate bone chilling cold in the winter or ineffective plumbing fixtures? Contact Schede Plumbing & Heating and feel the benefits of a home environment perfectly calibrated to both your personal satisfaction and your budget. Call us today to schedule your appointment.

"Toilet was not working PRO sent him a technician Mike he went to HO's home and the PRO did not finish the job and HO said that he was racist with and HO said that Mike should be not working with this Company"

Laverne L on February 2025

In business since 1922 offering heating & plumbing services. When you require plumbing services or installation and service of heating units, turn to Schede Plumbing & Heating. We are experts at plumbing repairs and installations as well as the set up and maintenance of heating control devices for maximum efficiency, longevity, and comfort. Why tolerate bone chilling cold in the winter or ineffective plumbing fixtures? Contact Schede Plumbing & Heating and feel the benefits of a home environment perfectly calibrated to both your personal satisfaction and your budget. Call us today to schedule your appointment.

"Toilet was not working PRO sent him a technician Mike he went to HO's home and the PRO did not finish the job and HO said that he was racist with and HO said that Mike should be not working with this Company"

Laverne L on February 2025


Avatar for Wa/ve Sound and Security, LLC

Wa/ve Sound and Security, LLC

4.93(
54
)
Approved Pro

Wa/ve Sound and Security, LLC

4.93(
54
)
Approved Pro
Customers say: True professional
24 local quotes requested
18 years of experience

Founded in 2007, Wa/ve Sound and Security, LLC has evolved as an industry leader in providing innovative solutions for the security, entertainment, and productivity of our customers. Our focus is to educate the customer so they can make the most informed decision on the products they are looking to purchase. We maintain a clean work environment, cleanup is important to us - we strive to leave the work site better than how we found it!

"Wes did an amazing job getting our dental practice music back up and running after a power surge took it out. His prompt attention brought the morality back up in the office while treating the patients. He was extremely communicative throughout the whole process. Thank you Wes!"

Samantha V on March 2025

Founded in 2007, Wa/ve Sound and Security, LLC has evolved as an industry leader in providing innovative solutions for the security, entertainment, and productivity of our customers. Our focus is to educate the customer so they can make the most informed decision on the products they are looking to purchase. We maintain a clean work environment, cleanup is important to us - we strive to leave the work site better than how we found it!

"Wes did an amazing job getting our dental practice music back up and running after a power surge took it out. His prompt attention brought the morality back up in the office while treating the patients. He was extremely communicative throughout the whole process. Thank you Wes!"

Samantha V on March 2025


Pelham Heating & Air Conditioning, LLC

4.45(
22
)
Approved Pro

Pelham Heating & Air Conditioning, LLC

4.45(
22
)
Approved Pro
Customers say: Quick response
17 local quotes requested
39 years of experience

Pelham Heating & Air Conditioning, LLC, is a locally owned company proudly serving Stamford and the surrounding area. We offer multiple decades of industry experience and believe in the motto "do it right, do it once". Call us today to discuss your next project.

"gas furnace not working. tested heating element, found faulty. fixed on return call. works great now."

Dick M on December 2023

Pelham Heating & Air Conditioning, LLC, is a locally owned company proudly serving Stamford and the surrounding area. We offer multiple decades of industry experience and believe in the motto "do it right, do it once". Call us today to discuss your next project.

"gas furnace not working. tested heating element, found faulty. fixed on return call. works great now."

Dick M on December 2023


Avatar for Pack-Timco Heating & Cooling

Pack-Timco Heating & Cooling

New on AngiNew on Angi
Approved Pro

Pack-Timco Heating & Cooling

New on AngiNew on Angi
Approved Pro
195 local quotes requested
58 years of experience

Pack-Timco, LLC Heating and Cooling is one of the oldest and most reputable HVAC companies for over 50 years. Starting in 1967, Pack-Timco, LLC Heating and Cooling begun as a one-man, one-truck service operation by Lawrence C. Pack. Pack-Timco is a full-service heating and cooling company serving residential and light commercial customers throughout Fairfield and Westchester counties. We understand the demands of high-end residential design: discreet elegance, architectural harmony, and absolute performance. That’s why we specialize in tailor-made HVAC systems that integrate flawlessly into even the most ambitious homes.

Pack-Timco, LLC Heating and Cooling is one of the oldest and most reputable HVAC companies for over 50 years. Starting in 1967, Pack-Timco, LLC Heating and Cooling begun as a one-man, one-truck service operation by Lawrence C. Pack. Pack-Timco is a full-service heating and cooling company serving residential and light commercial customers throughout Fairfield and Westchester counties. We understand the demands of high-end residential design: discreet elegance, architectural harmony, and absolute performance. That’s why we specialize in tailor-made HVAC systems that integrate flawlessly into even the most ambitious homes.


"Hired this company to replace two water heaters in my rental. Contractor responded quickly and got job done within few days from initial contact. Highly recommend."

Alex T on March 2025

For more than 78 years, we have been providing superior residential plumbing. We do comprehensive work -- and deliver great customer service. Our reputation in Fairfield County is second to none.

"Hired this company to replace two water heaters in my rental. Contractor responded quickly and got job done within few days from initial contact. Highly recommend."

Alex T on March 2025

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Heating and Air Conditioning questions, answered by experts

In most cases, homeowners insurance will cover an AC replacement if it was damaged due to a covered peril—such as theft, fire, or storms. So, if your air conditioner needs replacing due to regular wear and tear, your insurance company probably won’t pay for a new one. However, home warranties often cover HVAC repairs and replacements.

Turn your system off when you're toasty or when you're out to prevent unnecessary wear. Using the timer on your thermostat so that it switches off when it reaches a certain temperature or turns on just before you get back from work is best. An annual maintenance contract can be helpful to ensure your system receives these important services at regular intervals.

Yes, you can put an AC unit on the roof of your home or commercial building. For proper installation, you’ll need to ensure the roof surface is flat, it’s accessible for maintenance and cleaning, and an AC installation pro agreed that your home is a candidate for package units. Don’t forget to consider the climate in your area, as homes that experience frequent tropical storms or hurricanes may not benefit from this type of system.

A dual evaporator coil is a specific design that allows the AC system to cool different compartments at different levels. It’s usually seen in refrigerators and similar appliances, but not in whole-house air conditioning systems. Talk with your AC technician about the best uses for a dual evaporator coil.

While spending money once or twice a year to tuneup your AC and furnace might seem like a waste of money, think again. The cost of HVAC maintenance is far less than the cost of replacing your furnace or AC unit, regardless of the type of HVAC system you have. Paying this smaller fee now will help you avoid paying much more significant costs in the future. Not to mention, having a serviced AC and heating system will help keep your home comfortable, no matter the season. 

The Cos Cob, CT 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.