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Thermostat installers and replacers in Dover

Avatar for Heritage Home Service
Heritage Home Service
179 Lafayette Road
4.54(
982
)
Approved Pro
Heritage Home Service
179 Lafayette Road
4.54(
982
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
71 local quotes requested

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Southern Maine. Bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service. Our namesake is about honoring those who came before us, and most importantly, it is about leaving a legacy of serving people extraordinarily well. For over 37 years in business, we have helped countless families across our community stay comfortable and healthy in their homes, and today we continue to evolve and find new ways to serve you even better.

"Good job"

Susan S on September 2024

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Southern Maine. Bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service. Our namesake is about honoring those who came before us, and most importantly, it is about leaving a legacy of serving people extraordinarily well. For over 37 years in business, we have helped countless families across our community stay comfortable and healthy in their homes, and today we continue to evolve and find new ways to serve you even better.

"Good job"

Susan S on September 2024


Angell Electric
283 High St
5.00(
7
)
Approved Pro
Angell Electric
283 High St
5.00(
7
)
Approved Pro
Customers say: Quality work
25 local quotes requested
6 years of experience

Angell Electric is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you! M-F 7-7 Sat 8-5

"Amazing service and a great guy"

Cory B on April 2025

Angell Electric is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you! M-F 7-7 Sat 8-5

"Amazing service and a great guy"

Cory B on April 2025


Avatar for Heritage Home Service
Heritage Home Service
179 Lafayette Rd
5.00(
9
)
Approved Pro
Heritage Home Service
179 Lafayette Rd
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
246 local quotes requested

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Maine – bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service.

"Ryan Boulanger was quite professional and comfortable to work with as he did the annual maintenance review of my Alpine burner. He explained the work he needed to do and what he did with knowledge and understanding and helped me to understand. Thanks for your work, Ryan."

David H on May 2023

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Maine – bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service.

"Ryan Boulanger was quite professional and comfortable to work with as he did the annual maintenance review of my Alpine burner. He explained the work he needed to do and what he did with knowledge and understanding and helped me to understand. Thanks for your work, Ryan."

David H on May 2023


Avatar for Heritage Home Service
Heritage Home Service
28 Commercial Ct
4.03(
454
)
Approved Pro
Heritage Home Service
28 Commercial Ct
4.03(
454
)
Approved Pro
Customers say: Super punctual
1099 local quotes requested
39 years of experience

We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!

"Paul, our service technician, was timely, knowledgeable, and efficient. I can highly recommend Heritage Home service on this account. However I am extremely unhappy with the company's new service plan offered. I will explore other providers for this reason, and may not use Heritage Home Service in the future."

Craig V on November 2024

We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!

"Paul, our service technician, was timely, knowledgeable, and efficient. I can highly recommend Heritage Home service on this account. However I am extremely unhappy with the company's new service plan offered. I will explore other providers for this reason, and may not use Heritage Home Service in the future."

Craig V on November 2024


Avatar for DeSantis Heating and Cooling
DeSantis Heating and Cooling
44 Hall Rd
5.00(
4
)
Approved Pro
DeSantis Heating and Cooling
44 Hall Rd
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
631 local quotes requested

***WE DO NOT SERVICE HOT WATER** DeSantis heating and cooling is a family owned business. We have 23 years of business and still going strong. We specialize in whole house hvac installs and mini split installs.

"DeSantis heating saved me over 8000 dollars. A previous company told me I needed a new furnace after 15 minutes DeSantis repaired it on the existing furnace costing me 79 dollars."

Gary B on December 2024

***WE DO NOT SERVICE HOT WATER** DeSantis heating and cooling is a family owned business. We have 23 years of business and still going strong. We specialize in whole house hvac installs and mini split installs.

"DeSantis heating saved me over 8000 dollars. A previous company told me I needed a new furnace after 15 minutes DeSantis repaired it on the existing furnace costing me 79 dollars."

Gary B on December 2024


davis construction
New on HomeAdvisorNew on Angi
Approved Pro
davis construction
New on AngiNew on HomeAdvisor
Approved Pro
260 local quotes requested
2 years of experience

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!


Avatar for Done Right Handyman Service
Done Right Handyman Service
3.77(
13
)
Approved Pro
Done Right Handyman Service
3.77(
13
)
Approved Pro
Customers say: Terrific value
590 local quotes requested
13 years of experience

Family owned handyman services. Licensed and fully insured. Quality workmanship. We guarantee it is done right the first time.

"I hired Daniel to replace a door and replace weatherstripping around two other doors. He also painted my back door. The weatherstripping soon failed and came off the doors, and the paint job was poorly executed. This spring, I was preparing to move and discovered that he had dumped all his construction debris, including the old door, behind my garage and onto my neighbor's property. I also discovered he had thrown scrap wood in my bushes next to the house. He also had issues with promptness."

Lundy S on April 2025

Family owned handyman services. Licensed and fully insured. Quality workmanship. We guarantee it is done right the first time.

"I hired Daniel to replace a door and replace weatherstripping around two other doors. He also painted my back door. The weatherstripping soon failed and came off the doors, and the paint job was poorly executed. This spring, I was preparing to move and discovered that he had dumped all his construction debris, including the old door, behind my garage and onto my neighbor's property. I also discovered he had thrown scrap wood in my bushes next to the house. He also had issues with promptness."

Lundy S on April 2025


Avatar for Busby Home Services
Busby Home Services
8 Abundance Way
5.00(
7
)
Approved Pro
Busby Home Services
8 Abundance Way
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
281 local quotes requested

Owned and operated by Ryan Busby in Alfred, Maine, Busby Home Services is dedicated to keeping your house looking and functioning great. I pride myself on clear communication, attention to detail, and caring for your home like it was my own. I will ensure your task is done with care in a timely manner. Don’t risk damage to your home or injury to yourself trying to DIY. Contact us today to schedule an appointment and enjoy the peace of mind that comes with a clean, well-maintained home!

"Ryan did excellent work! He is meticulous in his approach to his work, diligently paying attention to details. He is an excellent craftsman and a great individual! He presents as highly professional and genuine!"

Carole S on April 2025

Owned and operated by Ryan Busby in Alfred, Maine, Busby Home Services is dedicated to keeping your house looking and functioning great. I pride myself on clear communication, attention to detail, and caring for your home like it was my own. I will ensure your task is done with care in a timely manner. Don’t risk damage to your home or injury to yourself trying to DIY. Contact us today to schedule an appointment and enjoy the peace of mind that comes with a clean, well-maintained home!

"Ryan did excellent work! He is meticulous in his approach to his work, diligently paying attention to details. He is an excellent craftsman and a great individual! He presents as highly professional and genuine!"

Carole S on April 2025


Avatar for Freedom Air Mechanical
Freedom Air Mechanical
150 Mount Hope Rd
4.77(
13
)
Approved Pro
Freedom Air Mechanical
150 Mount Hope Rd
4.77(
13
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
565 local quotes requested

As a Veteran owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. With attention to detail and a great work ethic your project is in good hands. We work with you to make sure the end result meets your needs. Our work is done with integrity, and it will show in the completion of your project. We are an Efficiency Maine Registered Contractor and are also a contractor for the NEIF. We install heat pumps low temp or standard temp applications. We use manufacturers such as Mitsubishi, Gree or Daikin. These systems can provide low temp heating options down to -22 degrees! We provide installations of Hybrid Water Heaters, Gas and or Oil fired boiler replacements. We also offer Warm air furnace replacements and central ac replacements. Anything hvac/r related we can do. With over 23 years in the field residential/commercial our techs can handle any project. Give us a call at 207-849-0238 or check out our website freedomairhvacr.com to schedule a free estimate today!

"Diagnosed the problem and repaired in a timely manner"

Jim H on July 2024

As a Veteran owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. With attention to detail and a great work ethic your project is in good hands. We work with you to make sure the end result meets your needs. Our work is done with integrity, and it will show in the completion of your project. We are an Efficiency Maine Registered Contractor and are also a contractor for the NEIF. We install heat pumps low temp or standard temp applications. We use manufacturers such as Mitsubishi, Gree or Daikin. These systems can provide low temp heating options down to -22 degrees! We provide installations of Hybrid Water Heaters, Gas and or Oil fired boiler replacements. We also offer Warm air furnace replacements and central ac replacements. Anything hvac/r related we can do. With over 23 years in the field residential/commercial our techs can handle any project. Give us a call at 207-849-0238 or check out our website freedomairhvacr.com to schedule a free estimate today!

"Diagnosed the problem and repaired in a timely manner"

Jim H on July 2024


Avatar for Granite Guardian Property Maintenance
Granite Guardian Property Maintenance
60 Hunter Drive
5.00(
7
)
Approved Pro
Granite Guardian Property Maintenance
60 Hunter Drive
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
551 local quotes requested

We are a full service Property Management and Maintenance company with over 50 Years of experience. We can help out with any handyman and home maintenance needed. Call -or- click to schedule a free estimate today!

"Chad and his crew are the best. They went above and beyond to fix my house. The crew did an excellent job on a really challenging project at the same time were polite, kind and addressed all my needs I will never hire anyone else for any work I may need."

Marie F on March 2024

We are a full service Property Management and Maintenance company with over 50 Years of experience. We can help out with any handyman and home maintenance needed. Call -or- click to schedule a free estimate today!

"Chad and his crew are the best. They went above and beyond to fix my house. The crew did an excellent job on a really challenging project at the same time were polite, kind and addressed all my needs I will never hire anyone else for any work I may need."

Marie F on March 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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