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Thermostat installers and replacers in Fairfield

TBD!

"Bill was very efficient, affordable and a decent guy. I would use him again and recommend him!"

Sean F on June 2021


Fairfield County Heating and Cooling
40 Beechwood Lane
4.75(
151
)
Approved Pro
Fairfield County Heating and Cooling
40 Beechwood Lane
4.75(
151
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
12 years of experience

At Fairfield County Heating and Cooling, 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.

"Good experience."

Felix E on June 2023

At Fairfield County Heating and Cooling, 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.

"Good experience."

Felix E on June 2023


Avatar for Mister Sparky Electric
Mister Sparky Electric
100 Corporate Dr, Ste A206
5.00(
2
)
Approved Pro
Mister Sparky Electric
100 Corporate Dr, Ste A206
5.00(
2
)
Approved Pro
Customers say: Quick response
47 local quotes requested
1 years of experience

It isn’t easy finding the right company for your electrical services needs. Electricity is not just one of the most important parts of a home; it can also be one of the most dangerous if not handled by a professional electrician. At Mister Sparky® , we’re ready to provide the safe and reliable electrical services that you need. Our team receives some of the most thorough training in the industry. Importantly, they always adhere to the highest industry standards and obey all local codes and regulations. Whether you need a complete rewiring of your home or need a new light installed, we’re the team you should call!

"Outstanding reliable service. I was very impressed with their level of professionalism and customer service. They completed the job quickly and are detailed in ensuring everything was perfect. I would definitely recommend and hire again."

Wendy B on December 2024

It isn’t easy finding the right company for your electrical services needs. Electricity is not just one of the most important parts of a home; it can also be one of the most dangerous if not handled by a professional electrician. At Mister Sparky® , we’re ready to provide the safe and reliable electrical services that you need. Our team receives some of the most thorough training in the industry. Importantly, they always adhere to the highest industry standards and obey all local codes and regulations. Whether you need a complete rewiring of your home or need a new light installed, we’re the team you should call!

"Outstanding reliable service. I was very impressed with their level of professionalism and customer service. They completed the job quickly and are detailed in ensuring everything was perfect. I would definitely recommend and hire again."

Wendy B on December 2024


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
13 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 Aire Serv of Southwest Connecticut
Aire Serv of Southwest Connecticut
95 Reef Road
4.38(
152
)
Approved Pro
Aire Serv of Southwest Connecticut
95 Reef Road
4.38(
152
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
26 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!

"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


Avatar for Mister Sparky Electric
Mister Sparky Electric
100 Corporate Dr, Ste A206
New on HomeAdvisorNew on Angi
Approved Pro
Mister Sparky Electric
100 Corporate Dr, Ste A206
New on AngiNew on HomeAdvisor
Approved Pro
36 local quotes requested
1 years of experience

It isn’t easy finding the right company for your electrical services needs. Electricity is not just one of the most important parts of a home; it can also be one of the most dangerous if not handled by a professional electrician. At Mister Sparky® , we’re ready to provide the safe and reliable electrical services that you need. Our team receives some of the most thorough training in the industry. Importantly, they always adhere to the highest industry standards and obey all local codes and regulations. Whether you need a complete rewiring of your home or need a new light installed, we’re the team you should call!

It isn’t easy finding the right company for your electrical services needs. Electricity is not just one of the most important parts of a home; it can also be one of the most dangerous if not handled by a professional electrician. At Mister Sparky® , we’re ready to provide the safe and reliable electrical services that you need. Our team receives some of the most thorough training in the industry. Importantly, they always adhere to the highest industry standards and obey all local codes and regulations. Whether you need a complete rewiring of your home or need a new light installed, we’re the team you should call!


Pelham Heating & Air Conditioning, LLC
52 Larkin Street
4.45(
22
)
Approved Pro
Pelham Heating & Air Conditioning, LLC
52 Larkin Street
4.45(
22
)
Approved Pro
Customers say: Quick response
13 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 Jireh Handyman LLC
Jireh Handyman LLC
36 Valley Rd
4.62(
271
)
Approved Pro
Jireh Handyman LLC
36 Valley Rd
4.62(
271
)
Approved Pro
Customers say: Quality work
675 local quotes requested
10 years of experience

Jireh Handyman LLC is a construction company in White Plains NY which also gives services all throughout the Westchester county area. Jireh Handyman LLC is a general construction company specializing in home remodeling. We are know for excellent customer service and making sure every detail is taken care of. We have a long list of other services as well. Our team is here to make sure your construction experience is a positive one!. No travel or material pickup charges. Additional phone - (914) 830-9714. All plumbing and electrical services are subcontracted.

"We had a grab rail professionally installed in our shower wall. We are very happy with work done. We would recommend to any one needing Repairs in home."

Caroline D on March 2025

Jireh Handyman LLC is a construction company in White Plains NY which also gives services all throughout the Westchester county area. Jireh Handyman LLC is a general construction company specializing in home remodeling. We are know for excellent customer service and making sure every detail is taken care of. We have a long list of other services as well. Our team is here to make sure your construction experience is a positive one!. No travel or material pickup charges. Additional phone - (914) 830-9714. All plumbing and electrical services are subcontracted.

"We had a grab rail professionally installed in our shower wall. We are very happy with work done. We would recommend to any one needing Repairs in home."

Caroline D on March 2025


Avatar for Nova Design Build
Nova Design Build
5.00(
18
)
Approved Pro
Nova Design Build
5.00(
18
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
462 local quotes requested

NOVA DESIGN BUILD is an innovative design-built firm distinguished by an integrated approach that goes beyond the limits of traditional interior design and home decoration or home remodeling practices. As a combined practice of a design studio, a general contracting team and a fabrication shop we pride ourselves on creating individually tailored interiors that feature unique design, solid construction and quality finishes. Our endeavor is driven to the pursuit of perfection and extreme attention to detail. We bring our extensive expertise in a range of disciplines to meet our client needs whether that means designing, building and renovating, creating bespoke custom cabinetry or decorating and furnishing your home. Our disciplines - Renovation, Custom Cabinetry, Interior Design & Decoration – can be approached as separate elements or as an integrated solution.

"Nova Design was professional, prompt, cost effective, competent, creative and courteous. I will use them again and absolutely recommend them."

Nariman T on June 2024

NOVA DESIGN BUILD is an innovative design-built firm distinguished by an integrated approach that goes beyond the limits of traditional interior design and home decoration or home remodeling practices. As a combined practice of a design studio, a general contracting team and a fabrication shop we pride ourselves on creating individually tailored interiors that feature unique design, solid construction and quality finishes. Our endeavor is driven to the pursuit of perfection and extreme attention to detail. We bring our extensive expertise in a range of disciplines to meet our client needs whether that means designing, building and renovating, creating bespoke custom cabinetry or decorating and furnishing your home. Our disciplines - Renovation, Custom Cabinetry, Interior Design & Decoration – can be approached as separate elements or as an integrated solution.

"Nova Design was professional, prompt, cost effective, competent, creative and courteous. I will use them again and absolutely recommend them."

Nariman T on June 2024


Avatar for Bell Mechanical, LLC
Bell Mechanical, LLC
200 Rte 6
4.16(
104
)
Approved Pro
Bell Mechanical, LLC
200 Rte 6
4.16(
104
)
Approved Pro
Customers say: Super punctual
784 local quotes requested
45 years of experience

Bell Mechanical, LLC is a customer focused heating and air-conditioning company that was originally started in 1980. Located in Mahopac, NY, we employ highly trained people whose goal is to make our company the best service company in Westchester, Dutchess, Putnam and Fairfield County. Our company specializes in designing, engineering, and installing complete comfort systems for owners of existing homes and buildings just like yours. We take special pride in the craftsmen we train and employ--a fact you'll notice immediately in the attitude and integrity they bring to your job site. Our entire company works hard to make your experience with us hassle-free and enjoyable. Should we make a mistake, we will do everything in our power to correct it to your satisfaction. From the professionalism of our sales engineers, to the dedication of our field personnel, we are dedicated to delivering you the best. We take our responsibility very seriously when you place your trust in us. We pledge to always tell you up front what your cost will be to complete your job correctly. We make it a point to go over any details or limitations of the proposed system that will affect your enjoyment of the end result. You are told exactly what to expect up front. This is why Bell Mechanical continues growing with more satisfied customers each and every year. Give us a call for your service needs and see what you've been missing!

"Issue with Bell Mechanical This past August of 2024 we had a heat pump system installed in the house by Bell Mechanical. Unfortunately, we have had nothing but issues since with the biggest being no heat multiple times and now again today we are without heat in the majority of our house. It is freezing outside, we have a toddler and within the past week this is the 2nd time we have no heat (4th time since the system was put in). Not only is this a life safety issue, but it also is heart breaking to have your toddler tell you they are freezing. Looking for advice on next steps. We have never sued anyone or threatened to sue but this may be the time as we have had nothing but issues since the beginning. From the start we made it very clear that everything needed to be done to code and permitted. We were doing a lot of major renovations at our house and everything was being done to code and permitted. John (the salesman) at Bell said that was not a problem. John also told us that the only additional cost we could potentially incur outside of what he quoted us for the system and its installation would be a $500 fee for the installation of the heat strip. We accepted this and moved forward. After Bell removed our central air system and installed the new carrier system we got his with additional work needed at the tune of over 2k. Needless to say we were not happy. John told us the electrician they use and that if we used that electrician there would be no delay but if we used ours that it would cause a delay. So, we went with what John said as he was the expert. John got the electrician to come down a little in price which we were grateful for. Fast forward to when the building inspector came out to close out the permits for the work Bell did and other work being done at the house, the inspector told my contractor that the heat pump was not done to code. We were told that the electrical for it was not done to code and he could not close out the permit. My husband talked to the electrician Bell gave us who informed us that Bell told him to “cut corners” which was part of getting the cost down slightly. Reminder, we NEVER said to do this, we made it clear that everything needed to be permitted and even paid the permit fees to Bell. Back and forth with Bell and the electrician got the electrician to fix his work at no additional cost but Bell still needed to fix the outside plug which was not to code. Giovanni at Bell agreed that Bell would fix this issue at no additional cost. It has been 3 months now and Bell has still not rectified this issue and Giovanni and John are both nonresponsive to our follow-ups. Bell has also had to come out 4 additional times because our system was not working and again today, we have no heat. Today will be the 5th time they have to come out for issues on a system that is 4 months old. This is not OK. We have given Bell ample time to rectify the issues. Clearly they did not do the install properly and there is also the possibility we have a faulty system. We have never sued someone or went to court but then again, we have never had such large and costly issues."

Danielle G on December 2024

Bell Mechanical, LLC is a customer focused heating and air-conditioning company that was originally started in 1980. Located in Mahopac, NY, we employ highly trained people whose goal is to make our company the best service company in Westchester, Dutchess, Putnam and Fairfield County. Our company specializes in designing, engineering, and installing complete comfort systems for owners of existing homes and buildings just like yours. We take special pride in the craftsmen we train and employ--a fact you'll notice immediately in the attitude and integrity they bring to your job site. Our entire company works hard to make your experience with us hassle-free and enjoyable. Should we make a mistake, we will do everything in our power to correct it to your satisfaction. From the professionalism of our sales engineers, to the dedication of our field personnel, we are dedicated to delivering you the best. We take our responsibility very seriously when you place your trust in us. We pledge to always tell you up front what your cost will be to complete your job correctly. We make it a point to go over any details or limitations of the proposed system that will affect your enjoyment of the end result. You are told exactly what to expect up front. This is why Bell Mechanical continues growing with more satisfied customers each and every year. Give us a call for your service needs and see what you've been missing!

"Issue with Bell Mechanical This past August of 2024 we had a heat pump system installed in the house by Bell Mechanical. Unfortunately, we have had nothing but issues since with the biggest being no heat multiple times and now again today we are without heat in the majority of our house. It is freezing outside, we have a toddler and within the past week this is the 2nd time we have no heat (4th time since the system was put in). Not only is this a life safety issue, but it also is heart breaking to have your toddler tell you they are freezing. Looking for advice on next steps. We have never sued anyone or threatened to sue but this may be the time as we have had nothing but issues since the beginning. From the start we made it very clear that everything needed to be done to code and permitted. We were doing a lot of major renovations at our house and everything was being done to code and permitted. John (the salesman) at Bell said that was not a problem. John also told us that the only additional cost we could potentially incur outside of what he quoted us for the system and its installation would be a $500 fee for the installation of the heat strip. We accepted this and moved forward. After Bell removed our central air system and installed the new carrier system we got his with additional work needed at the tune of over 2k. Needless to say we were not happy. John told us the electrician they use and that if we used that electrician there would be no delay but if we used ours that it would cause a delay. So, we went with what John said as he was the expert. John got the electrician to come down a little in price which we were grateful for. Fast forward to when the building inspector came out to close out the permits for the work Bell did and other work being done at the house, the inspector told my contractor that the heat pump was not done to code. We were told that the electrical for it was not done to code and he could not close out the permit. My husband talked to the electrician Bell gave us who informed us that Bell told him to “cut corners” which was part of getting the cost down slightly. Reminder, we NEVER said to do this, we made it clear that everything needed to be permitted and even paid the permit fees to Bell. Back and forth with Bell and the electrician got the electrician to fix his work at no additional cost but Bell still needed to fix the outside plug which was not to code. Giovanni at Bell agreed that Bell would fix this issue at no additional cost. It has been 3 months now and Bell has still not rectified this issue and Giovanni and John are both nonresponsive to our follow-ups. Bell has also had to come out 4 additional times because our system was not working and again today, we have no heat. Today will be the 5th time they have to come out for issues on a system that is 4 months old. This is not OK. We have given Bell ample time to rectify the issues. Clearly they did not do the install properly and there is also the possibility we have a faulty system. We have never sued someone or went to court but then again, we have never had such large and costly issues."

Danielle G on December 2024

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Thermostat installations and replacements FAQs

It's often worth replacing your old thermostat with a newer model that can enhance your home's comfort and energy efficiency. Upgrading to a programmable or smart thermostat can save you up to $200 per year on energy bills. Plus, smart thermostats offer convenient features like remote control and learning capabilities, making your home more comfortable and easier to manage.

Signs of a bad thermostat include your HVAC system not turning on when it's supposed to or failing to reach the desired temperature. If the thermostat's display is blank or not functioning properly, it could be malfunctioning. Another indicator is the HVAC system running continuously without shutting off or cycling on and off too frequently. You might also notice uneven temperatures throughout your home, with some rooms being too warm or too cold. These issues suggest that the thermostat is failing and may need repair or replacement to ensure your HVAC system operates efficiently.

A thermostat should last between 10 to 20 years, depending on its quality and how well it's maintained. Over time, dust, wiring issues, and general wear can affect its performance. Even if a thermostat is still functioning after 10 years, you might choose to replace it to take advantage of newer energy-saving technologies and smart home integrations. Upgrading to a modern thermostat can improve efficiency, offer more control over your home's climate, and potentially lower energy bills.

The number of thermostats you need depends on your home's size, layout, and heating and cooling zones. In a standard single-zone HVAC system, one thermostat controls the temperature for the entire home. However, larger homes or those with multiple floors might benefit from multiple thermostats linked to a multi-zone HVAC system. This setup can offer better comfort and energy efficiency: It lets you customize the temperature in different areas, so you're only heating or cooling the spaces you're using.

Replacing a thermostat typically takes a professional technician about one to two hours to complete. If you're swapping out an existing thermostat for a similar model with compatible wiring, the process can be done in less than an hour. However, installing a new thermostat that requires additional wiring, such as a smart thermostat, or moving the thermostat to a new location can extend the time to two hours or more. Complex installations may also involve cutting into drywall or integrating with other home systems, which can add to the duration.

There are a few things that can cause your home thermostat to fail. The most simple one is age and cleanliness. Dirt, grease, dust, and other small particles can clog sensors and cause malfunctions in readings. You may also have a failing power supply and loose connections, and the simplest cause is that it isn't installed in the right place in your home so it can't properly sense air temperature. Repairing a thermostat costs around $210.

The homeowners guide to thermostat installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
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