Get matched with top heating and air conditioning pros in Old Greenwich, CT
There are 48 highly-rated local heating and air conditioning pros.
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Verified Reviews for Heating And Air Conditioning Service pros in Old Greenwich, CT
*The Angi rating for Heating And Air Conditioning Service companies in Old Greenwich, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Old Greenwich, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on March 18, 2025
Heating and air conditioning pros in Old Greenwich
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
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
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
At Mike's Plumbing Services LLC we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.
"Very quick response, everything got done same day."
Stanislav K on January 2025
At Mike's Plumbing Services LLC we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.
"Very quick response, everything got done same day."
Stanislav K on January 2025
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
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!
"Very professional and knowledgeable and very fast service. "
Jose O on January 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!
"Very professional and knowledgeable and very fast service. "
Jose O on January 2025
At Coastal Mechanical Services, we've been the trusted HVAC experts serving Connecticut for over 27 years. As a family-owned business, we take pride in offering a comprehensive range of heating, ventilation, and air conditioning solutions tailored to meet the unique needs of our coastal community. From installation and maintenance to repairs and upgrades, we prioritize customer satisfaction above all else. Our team of experienced technicians is dedicated to providing top-notch service and ensuring your indoor comfort year-round. When you choose Coastal Mechanical Services, you're choosing reliability, expertise, and a commitment to excellence.
At Coastal Mechanical Services, we've been the trusted HVAC experts serving Connecticut for over 27 years. As a family-owned business, we take pride in offering a comprehensive range of heating, ventilation, and air conditioning solutions tailored to meet the unique needs of our coastal community. From installation and maintenance to repairs and upgrades, we prioritize customer satisfaction above all else. Our team of experienced technicians is dedicated to providing top-notch service and ensuring your indoor comfort year-round. When you choose Coastal Mechanical Services, you're choosing reliability, expertise, and a commitment to excellence.
We are a fully licensed and insured plumbing and heating service offering comprehensive services for plumbing and heating in Westchester NY, Putnam NY, Southern Dutchess and the surrounding areas. Our services include toilet repair, hot water heaters, leak repair, drain cleaning, boiler services and much more. A complete listing of the services offered by our professional plumbers can be found on our website. In addition to plumbing and heating services for existing homes and new construction, we offer 24-hour emergency service for plumbing emergencies. Check our website www.cassidyplumbinginc.com for our specials.
"Great, job was done in a efficient manner, would hire again"
Dino F on October 2024
We are a fully licensed and insured plumbing and heating service offering comprehensive services for plumbing and heating in Westchester NY, Putnam NY, Southern Dutchess and the surrounding areas. Our services include toilet repair, hot water heaters, leak repair, drain cleaning, boiler services and much more. A complete listing of the services offered by our professional plumbers can be found on our website. In addition to plumbing and heating services for existing homes and new construction, we offer 24-hour emergency service for plumbing emergencies. Check our website www.cassidyplumbinginc.com for our specials.
"Great, job was done in a efficient manner, would hire again"
Dino F on October 2024
Here at Climate Care LLC, we take pride in providing the best services and satisfying our customer needs. We specialize in HVAC Contractor, Furnace Repair Service, Heating Contractor, Furnace And Humidifier Repair, Central Humidifier Installation, Air Conditioning Contractor, Residential Air Conditioning Contractor, Central Air Conditions, Indoor Air Purification System, Air Conditioning Repair Service and much more. We look forward to your business and serving you. Contact us today 203-354-2020
"Guys were great, competitive pricing and extremely thorough on my job even though it was a complicated install."
James B on February 2025
Here at Climate Care LLC, we take pride in providing the best services and satisfying our customer needs. We specialize in HVAC Contractor, Furnace Repair Service, Heating Contractor, Furnace And Humidifier Repair, Central Humidifier Installation, Air Conditioning Contractor, Residential Air Conditioning Contractor, Central Air Conditions, Indoor Air Purification System, Air Conditioning Repair Service and much more. We look forward to your business and serving you. Contact us today 203-354-2020
"Guys were great, competitive pricing and extremely thorough on my job even though it was a complicated install."
James B on February 2025
DAVID HEATING AND COOLING INC. is a leading and reputable HVAC Contractor Company serving the New York and Westchester area. Ever since we opened for business, we’ve taken a comprehensive approach to project management, providing our clients with a wide range of services to cover their needs. Get in touch today to learn more about what we can offer you and to receive your free estimate. A/C Installation. Heating and cooling repairs, maintenance, installation. Heat pump conversion. Ductless installation. Boiler maintenance & repairs. Facebook - https://www.facebook.com/people/David-Heating-Cooling-Inc/100088929177193/ Website - https://www.davidheatingcooling.com/
"Kevin es un buen técnico honesto y realizó un buen trabajo en mi casa."
Lucy S on June 2024
DAVID HEATING AND COOLING INC. is a leading and reputable HVAC Contractor Company serving the New York and Westchester area. Ever since we opened for business, we’ve taken a comprehensive approach to project management, providing our clients with a wide range of services to cover their needs. Get in touch today to learn more about what we can offer you and to receive your free estimate. A/C Installation. Heating and cooling repairs, maintenance, installation. Heat pump conversion. Ductless installation. Boiler maintenance & repairs. Facebook - https://www.facebook.com/people/David-Heating-Cooling-Inc/100088929177193/ Website - https://www.davidheatingcooling.com/
"Kevin es un buen técnico honesto y realizó un buen trabajo en mi casa."
Lucy S on June 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
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
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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