
Get matched with top nest installation pros in Litchfield, CT
There are 9 highly-rated local nest installation pros.
Need a pro for your nest installation project in Litchfield, CT?
TRUSTED BY LITCHFIELD, CT HOMEOWNERS
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Average homeowner rating50
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Verified Reviews for Nest Installation pros in Litchfield, CT
*The Angi rating for Nest Installation companies in Litchfield, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
*The HomeAdvisor rating for Nest Installation companies in Litchfield, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
Last update on October 30, 2025
Find Nest installation pros in Litchfield

N E Mitchell
N E Mitchell
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

ADT
ADT
ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.
"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."
Luke W on October 2025
ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.
"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."
Luke W on October 2025

SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
For 140 years, ADT has been the leading home security provider in the country. SafeStreets, ADT's Authorized Provider, sells and installs ADT-monitored home security systems. Our team consists of 300+ trained consultants, covering more than 90% of the United States across 44 states. We are experts on the latest smart-home technology, and highly focused on giving all customers a 5-Star Experience™. SafeStreets is committed to bringing high-tech security equipment, backed by 24/7 professional monitoring, to the place that matters most - your home. We have same day and next day appointments available, all scheduled within a one hour window. Call us anytime for a custom home security assessment and free quote! Comprehensive Security System ADT 24/7 Monitoring Touch Screen Control Panel Motion Detectors, Glass Break Sensors, & Point-of-Entry Sensors Indoor, Outdoor, & Doorbell Cameras Smart Home Automation Smoke, Carbon Monoxide, & Flood Sensors Mobile App Control Cellular Connection Back-up Battery Supply Maintenance/Extended Warranty Homeowners Insurance Certificate Theft Protection Guarantee
"Biggest thing we love about this alarm package is that there are flexible options and complex options available. We are simple people so we don’t need anything fancy but its nice knowing we can upgrade if our needs ever change. They’ve been terrific to work with and get this job done for us."
Camille C on October 2025
For 140 years, ADT has been the leading home security provider in the country. SafeStreets, ADT's Authorized Provider, sells and installs ADT-monitored home security systems. Our team consists of 300+ trained consultants, covering more than 90% of the United States across 44 states. We are experts on the latest smart-home technology, and highly focused on giving all customers a 5-Star Experience™. SafeStreets is committed to bringing high-tech security equipment, backed by 24/7 professional monitoring, to the place that matters most - your home. We have same day and next day appointments available, all scheduled within a one hour window. Call us anytime for a custom home security assessment and free quote! Comprehensive Security System ADT 24/7 Monitoring Touch Screen Control Panel Motion Detectors, Glass Break Sensors, & Point-of-Entry Sensors Indoor, Outdoor, & Doorbell Cameras Smart Home Automation Smoke, Carbon Monoxide, & Flood Sensors Mobile App Control Cellular Connection Back-up Battery Supply Maintenance/Extended Warranty Homeowners Insurance Certificate Theft Protection Guarantee
"Biggest thing we love about this alarm package is that there are flexible options and complex options available. We are simple people so we don’t need anything fancy but its nice knowing we can upgrade if our needs ever change. They’ve been terrific to work with and get this job done for us."
Camille C on October 2025

HARP Home Services LLC
HARP Home Services LLC
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

Swanson Electric LLC
Swanson Electric LLC
Swanson Electric is operating out of Litchfield CT providing service to Litchfield county. I offer the following services, General lighting, troubleshooting, switch/outlet repair and installation, tv mounting, smart devices, radio RA and programming, homeworks panels, service upgrades, remodels, new construction, portable generator installs and much more!
"Troy communicates well. He gave me several options on how to complete the work I needed done. The work was properly completed as discussed. Troy and his assistant cleaned up after themselves. I will hire Troy to do additional electrical work as needed. Thanks"
Richard H on September 2025
Swanson Electric is operating out of Litchfield CT providing service to Litchfield county. I offer the following services, General lighting, troubleshooting, switch/outlet repair and installation, tv mounting, smart devices, radio RA and programming, homeworks panels, service upgrades, remodels, new construction, portable generator installs and much more!
"Troy communicates well. He gave me several options on how to complete the work I needed done. The work was properly completed as discussed. Troy and his assistant cleaned up after themselves. I will hire Troy to do additional electrical work as needed. Thanks"
Richard H on September 2025

Chernin HVAC & Refrigeration, LLC
Chernin HVAC & Refrigeration, LLC
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

MGT Electrical Services inc
MGT Electrical Services inc
We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"It went very well. He said it would take about 5-6 hours, the job was done in three hours. Great comunication. Very happy with the work and outcome. They cleaned up very good when done. I will be calling them again to drop a few more line for me soon."
Richard N on August 2024
We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"It went very well. He said it would take about 5-6 hours, the job was done in three hours. Great comunication. Very happy with the work and outcome. They cleaned up very good when done. I will be calling them again to drop a few more line for me soon."
Richard N on August 2024

J Thurston Fuel
J Thurston Fuel
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

OnTheGrid Electric , LLC
OnTheGrid Electric , LLC
Family run electrical contractor since 2009. We provide electrical Installation, Maintenance, Troubleshooting, Service and Repair in Residential, Commercial and Industrial properties. Free estimates. Previous contractors unreliable? We arrive on time and clean up before leaving. Latest projects include full and partial home rehabs, EV level 2 charger installation, new house or room addition wiring and inspection repairs.
"Everything went well!"
Matthew C on March 2025
Family run electrical contractor since 2009. We provide electrical Installation, Maintenance, Troubleshooting, Service and Repair in Residential, Commercial and Industrial properties. Free estimates. Previous contractors unreliable? We arrive on time and clean up before leaving. Latest projects include full and partial home rehabs, EV level 2 charger installation, new house or room addition wiring and inspection repairs.
"Everything went well!"
Matthew C on March 2025

FO Electric LLC
FO Electric LLC
FO Electric LLC is a trusted and professional electrical services provider, dedicated to delivering top-quality solutions. We offer reliable, safe, and efficient services. We are committed to ensuring customer satisfaction through timely service, transparent pricing, and high standards of workmanship. Let us power your home or business with confidence and peace of mind.
FO Electric LLC is a trusted and professional electrical services provider, dedicated to delivering top-quality solutions. We offer reliable, safe, and efficient services. We are committed to ensuring customer satisfaction through timely service, transparent pricing, and high standards of workmanship. Let us power your home or business with confidence and peace of mind.
The Litchfield, CT homeowners’ guide to nest installation services
From average costs to expert advice, get all the answers you need to get your job done.

Regularly replacing your HVAC filter regularly is vital for a healthy system. Learn how much an HVAC filter replacement costs with this informative guide.

A blower door test can identify air leaks in your home and help boost energy efficiency. Use this blower door test cost guide to see what your test will total.

The average cost of an electric furnace ranges between $1,700 and $7,000, depending on the size, ductwork, and complexity.

If your window AC needs some TLC, learn who to hire to clean and repair window AC units. Check out what you can do as a DIYer and what’s best left to a pro.

Review the disadvantages of mini-split systems as well as the benefits before buying. Review our breakdown of the mini-split pros and cons.

Ventilation systems (like HRV and ERV systems) keep fresh air circulating throughout newly-built homes—but what is an HRV system exactly? Find out here.
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