Get matched with top heating and air conditioning pros in Cornwall, CT
There are 7 highly-rated local heating and air conditioning pros.
TRUSTED BY CORNWALL, CT HOMEOWNERS
4.8 
10 Verified Reviews for Heating And Air Conditioning Service pros in Cornwall, CT
*The Angi rating for Heating And Air Conditioning Service companies in Cornwall, 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 Cornwall, 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 June 18, 2025
Heating and air conditioning pros in Cornwall
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
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
Connecticut's highest rated heating & air conditioning company. 1,200+ 5 star reviews. In business since 2004 with currently 18 experienced technicians and call center employees. Please call today to schedule your appointment at (860) 317-0244
"The team was super helpful and helped provide solutions to keep my family cool during the summer months. They were a pleasure to work with."
John S on October 2023
Connecticut's highest rated heating & air conditioning company. 1,200+ 5 star reviews. In business since 2004 with currently 18 experienced technicians and call center employees. Please call today to schedule your appointment at (860) 317-0244
"The team was super helpful and helped provide solutions to keep my family cool during the summer months. They were a pleasure to work with."
John S on October 2023
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
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
Tankfarm can service and install propane burning equipment including boilers, furnaces, hot water heaters, pool heaters, generators and more. We also specialize in conversions of heating and hot water systems from heating oil and electric. Service agreements and remote monitoring of equipment are also available.
"This was an all around fantastic experience! I needed furnace work done. From phone call to service was a quick turn around! Andre was incredibly knowledgeable. Any questions I asked he had an answer for and broke down it down for the average joe to understand! I won't use any other company. It's nice to see curtesy and a great work ethic! Everything was up and running the same day. On top of it all he cleaned up as he went progressed through the project."
Brett W on May 2025
Tankfarm can service and install propane burning equipment including boilers, furnaces, hot water heaters, pool heaters, generators and more. We also specialize in conversions of heating and hot water systems from heating oil and electric. Service agreements and remote monitoring of equipment are also available.
"This was an all around fantastic experience! I needed furnace work done. From phone call to service was a quick turn around! Andre was incredibly knowledgeable. Any questions I asked he had an answer for and broke down it down for the average joe to understand! I won't use any other company. It's nice to see curtesy and a great work ethic! Everything was up and running the same day. On top of it all he cleaned up as he went progressed through the project."
Brett W on May 2025
We specialize in residential and commercial air duct cleaning & dryer vent cleaning! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!
"A first class operation!"
Cheryl H on April 2025
We specialize in residential and commercial air duct cleaning & dryer vent cleaning! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!
"A first class operation!"
Cheryl H on April 2025
Air duct crew is one of the oldest company on the market. Started in 2001 as family owned. Still operating proudly as one of the leading air duct cleaning, dryer vent cleaning and chimney cleaning company. Our goal is to ensure the quality of service and best level of cleaning to our every customer. We are proudly servicing commercial and residential projects of every difficulty.
"Air Duct Crew did a great job and I REALLY appreciated the guys that showed up to do the job. Very nice and professional, had no concerns about them at all."
Abigail T on March 2021
Air duct crew is one of the oldest company on the market. Started in 2001 as family owned. Still operating proudly as one of the leading air duct cleaning, dryer vent cleaning and chimney cleaning company. Our goal is to ensure the quality of service and best level of cleaning to our every customer. We are proudly servicing commercial and residential projects of every difficulty.
"Air Duct Crew did a great job and I REALLY appreciated the guys that showed up to do the job. Very nice and professional, had no concerns about them at all."
Abigail T on March 2021
Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!
"They did fine"
Keavon R on May 2025
Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!
"They did fine"
Keavon R on May 2025
PlumbTech LLC is a quality-first installer of commercial and residential plumbing and heating systems. We specialize in custom construction and remodel jobs, equipment changeouts. - Fully licensed and insured contractor. - 1-year warrantee on all work
"Great communication with Ron! My boiler and HW heater were fire hazards that needed immediate replacement! I felt confident with Ron and trusted him the moment we met! He followed thru with financing, scheduled the install, and completed the install same day! I kid you not ... the new boiler (and all that goes with it) is absolutely beautiful !!! He followed thru to make sure all zones functioned and my basement was clean when he left! I will be calling PlumbTech (as needed) and highly recommend Ron to anyone needing exceptional service!!! Thanks Ron (Superman) !!!"
kim S on January 2021
PlumbTech LLC is a quality-first installer of commercial and residential plumbing and heating systems. We specialize in custom construction and remodel jobs, equipment changeouts. - Fully licensed and insured contractor. - 1-year warrantee on all work
"Great communication with Ron! My boiler and HW heater were fire hazards that needed immediate replacement! I felt confident with Ron and trusted him the moment we met! He followed thru with financing, scheduled the install, and completed the install same day! I kid you not ... the new boiler (and all that goes with it) is absolutely beautiful !!! He followed thru to make sure all zones functioned and my basement was clean when he left! I will be calling PlumbTech (as needed) and highly recommend Ron to anyone needing exceptional service!!! Thanks Ron (Superman) !!!"
kim S on January 2021
FAQs for heating and air conditioning service projects in Cornwall, CT
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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