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Thermostat installers and replacers in Leesburg

Air We Breathe LLC
97 Spoon Square
5.00(
17
)
Approved Pro
Air We Breathe LLC
97 Spoon Square
5.00(
17
)
Approved Pro
Customers say: Quick response
25 local quotes requested
15 years of experience

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Air We Breathe strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction. Emergency calls accepted.

"Top notch -"

Doug M on April 2025

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Air We Breathe strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction. Emergency calls accepted.

"Top notch -"

Doug M on April 2025


Avatar for Appleton Campbell, Inc.
Appleton Campbell, Inc.
285 Alwington Blvd
4.70(
46
)
Approved Pro
Appleton Campbell, Inc.
285 Alwington Blvd
4.70(
46
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
123 local quotes requested

Appleton Campbell is the local name you can count on for all of your plumbing, heating, cooling and electrical needs.

"Yes the job was completed and worked. The plumber that they sent out was not professional."

Gail D on February 2025

Appleton Campbell is the local name you can count on for all of your plumbing, heating, cooling and electrical needs.

"Yes the job was completed and worked. The plumber that they sent out was not professional."

Gail D on February 2025


Avatar for Elements Of Energy L.L.C.
Elements Of Energy L.L.C.
13700 Kenslow Court
5.00(
11
)
Approved Pro
Elements Of Energy L.L.C.
13700 Kenslow Court
5.00(
11
)
Approved Pro
Super Service Award
Customers say: Quick response
16 local quotes requested
3 years of experience

We provide services to homeowners and businesses throughout Northern Virginia, Washington D.C. and Maryland. We spend time during each call asking questions to fully assess the situation, and are usually able to determine the best course of action before we send a truck out to your home or business. We’ve been in the business of employing the most knowledgeable, professional, attentive, and courteous electricians in all of “DMV”. It’s our attention to service and quality, Each appointment made with one of our clients is set up by one of our experienced electricians.

"Kevin did very excellent and thorough installation of the EV charging outlet."

Yuhong W on March 2025

We provide services to homeowners and businesses throughout Northern Virginia, Washington D.C. and Maryland. We spend time during each call asking questions to fully assess the situation, and are usually able to determine the best course of action before we send a truck out to your home or business. We’ve been in the business of employing the most knowledgeable, professional, attentive, and courteous electricians in all of “DMV”. It’s our attention to service and quality, Each appointment made with one of our clients is set up by one of our experienced electricians.

"Kevin did very excellent and thorough installation of the EV charging outlet."

Yuhong W on March 2025


Leal Remodeling-Painting & Handyman Services
13006 St Charles Pl
4.64(
248
)
Approved Pro
Leal Remodeling-Painting & Handyman Services
13006 St Charles Pl
4.64(
248
)
Approved Pro
Customers say: Quality work
1090 local quotes requested
27 years of experience

We are a team of professionals in the area with ​​very high quality focused on solving their needs in an efficient way Whatever the service required in the remodeling of your bathroom, kitchen, remodeling in general or carpentry and painting. Our priority is that all our clients feel satisfied with our services from the beginning to the end, helping them during the process of remodeling or repair requested and helping you to take the best options in any doubt regarding your project. The sense of responsibility and compliance that characterizes us allow you to feel confident of the results in any of the categories requested. A work guaranteed by experience and honesty that ensures your investment. We are licensed and insured .

"Excellent service. Quick to respond to the Angi notification and quick to be out to our house for an estimate. It was a relatively small job reseating two sinks, but Ferney took the time to explain everything and make sure it was all done to the highest standard"

Jeremy E on March 2025

We are a team of professionals in the area with ​​very high quality focused on solving their needs in an efficient way Whatever the service required in the remodeling of your bathroom, kitchen, remodeling in general or carpentry and painting. Our priority is that all our clients feel satisfied with our services from the beginning to the end, helping them during the process of remodeling or repair requested and helping you to take the best options in any doubt regarding your project. The sense of responsibility and compliance that characterizes us allow you to feel confident of the results in any of the categories requested. A work guaranteed by experience and honesty that ensures your investment. We are licensed and insured .

"Excellent service. Quick to respond to the Angi notification and quick to be out to our house for an estimate. It was a relatively small job reseating two sinks, but Ferney took the time to explain everything and make sure it was all done to the highest standard"

Jeremy E on March 2025


Avatar for Zee Servicing LLC
Zee Servicing LLC
New on HomeAdvisorNew on Angi
Approved Pro
Zee Servicing LLC
New on AngiNew on HomeAdvisor
Approved Pro
9 years of experience
Free onsite estimate

We are specialized in all type of maintenance, repairs, and remodeling, plumbing, drywall, painting and carpentry projects in DMV area. Our expert handyman are always ready around the clock to handle all of your needs on timely and professional manner. Zee Servicing LLC also do basement framing, kitchen and bathroom remodeling too.

We are specialized in all type of maintenance, repairs, and remodeling, plumbing, drywall, painting and carpentry projects in DMV area. Our expert handyman are always ready around the clock to handle all of your needs on timely and professional manner. Zee Servicing LLC also do basement framing, kitchen and bathroom remodeling too.


Avatar for Appleton Campbell
Appleton Campbell
285 Alwington Blvd
4.64(
319
)
Approved Pro
Appleton Campbell
285 Alwington Blvd
4.64(
319
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1062 local quotes requested

Call today for FREE Estimates for new heating and cooling systems, water heaters, water filtration and electrical panels and whole home generators. Founded in 1976 by Jim Appleton, grandfather of current President Mike Appleton—Appleton Campbell has remained a locally owned and operated business dedicated to their customers, employees and communities. Honesty, integrity, and experience are the cornerstones on which Appleton Campbell was built and on which it continues to grow today. Committed to outstanding customer service Appleton Campbell provides: - Highly trained technicians who treat you and your home with courtesy and respect - Flat-rate pricing—the price you are quoted up front is the price you will pay—there are no surprises - Guaranteed service and customer satisfaction

"The Stapleton Team. Made quick contact, scheduled around my time frame, and delivered a skilled tech to solve a basic problem that I couldn't fix. They also recommended additional settings at no cost and proposed other services the company has as a separate fee for service."

Aqeel K on May 2024

Call today for FREE Estimates for new heating and cooling systems, water heaters, water filtration and electrical panels and whole home generators. Founded in 1976 by Jim Appleton, grandfather of current President Mike Appleton—Appleton Campbell has remained a locally owned and operated business dedicated to their customers, employees and communities. Honesty, integrity, and experience are the cornerstones on which Appleton Campbell was built and on which it continues to grow today. Committed to outstanding customer service Appleton Campbell provides: - Highly trained technicians who treat you and your home with courtesy and respect - Flat-rate pricing—the price you are quoted up front is the price you will pay—there are no surprises - Guaranteed service and customer satisfaction

"The Stapleton Team. Made quick contact, scheduled around my time frame, and delivered a skilled tech to solve a basic problem that I couldn't fix. They also recommended additional settings at no cost and proposed other services the company has as a separate fee for service."

Aqeel K on May 2024


Avatar for The Doctor House, LLC
The Doctor House, LLC
9290 Towerside Dr
4.56(
126
)
Approved Pro
The Doctor House, LLC
9290 Towerside Dr
4.56(
126
)
Approved Pro
Customers say: Quality work
775 local quotes requested
19 years of experience

The Doctor House, Handyman, we can do almost everything, using good materials, no job is to small if we can't do we have a business partners and we can help you with your Home Improvement or your HONEY DO LIST, also we am do interior and exterior painting, drywall repair and hanging, finishing, roof repair, light electric, and light pluming, deck repair, kitchen, basements, laundry rooms, and much more.

"Carlos was very friendly and knowledgeable. I will use him for a future project."

Liam T on April 2025

The Doctor House, Handyman, we can do almost everything, using good materials, no job is to small if we can't do we have a business partners and we can help you with your Home Improvement or your HONEY DO LIST, also we am do interior and exterior painting, drywall repair and hanging, finishing, roof repair, light electric, and light pluming, deck repair, kitchen, basements, laundry rooms, and much more.

"Carlos was very friendly and knowledgeable. I will use him for a future project."

Liam T on April 2025


Avatar for JW Home Improvement
JW Home Improvement
849 Quince Orchard Blvd
4.39(
5,499
)
Approved Pro
JW Home Improvement
849 Quince Orchard Blvd
4.39(
5,499
)
Approved Pro
Customers say: Quality work
6015 local quotes requested
24 years of experience

JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!

"Fine it was fine"

Jonathan S on April 2025

JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!

"Fine it was fine"

Jonathan S on April 2025


Avatar for King General Contracting
King General Contracting
P.O. Box 1904
4.78(
36
)
Approved Pro
King General Contracting
P.O. Box 1904
4.78(
36
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1111 local quotes requested

Our services include: painting (interior & exterior), shingles (repair and replace), siding, vinyl, drywall, fencing, decks and more! We accept credit cards and also have coupons on our web site. We have 3 crews to cover a 100 mile radius. For the most prompt service, please call us directly at our main number. We look forward to hearing from you! Please visit us at https://kingconstructions.com/

"I liked Oscar and was happy with the finished product, he did additional work/fixes when I requested and at reasonable costs. I would hire them again. Make sure you have a detailed scope and discuss on site prior to starting, that would have saved both of us time on this project."

justin f on October 2022

Our services include: painting (interior & exterior), shingles (repair and replace), siding, vinyl, drywall, fencing, decks and more! We accept credit cards and also have coupons on our web site. We have 3 crews to cover a 100 mile radius. For the most prompt service, please call us directly at our main number. We look forward to hearing from you! Please visit us at https://kingconstructions.com/

"I liked Oscar and was happy with the finished product, he did additional work/fixes when I requested and at reasonable costs. I would hire them again. Make sure you have a detailed scope and discuss on site prior to starting, that would have saved both of us time on this project."

justin f on October 2022


Avatar for Modern Mechanical
Modern Mechanical
21730 Red Rum Dr
4.33(
43
)
Approved Pro
Modern Mechanical
21730 Red Rum Dr
4.33(
43
)
Approved Pro
Customers say: Super punctual
770 local quotes requested
16 years of experience

Modern Mechanical is your trusted partner for all your heating and A/C needs in Washington D.C. With our Virginia Class A License 2705 134143A, we are committed to providing top-notch service and expertise. Contact us today for all your home comfort needs.

"I have been a customer for a very long time and this scheduled maintenance and dryer vent cleaning was done by Cesar. I have to say he is one very thorough technician and I was very pleased with his inspection and vent cleaning. His service was so different than some of the ones I've had before. I even had one inspector tell me he didn't need to check in my attic which houses one of our two units. Let me tell you about Cesar, he even cleaned up behind my dryer for me. This is something that is rare in customer service. I have my HVAC seasonally maintenanced and never had a inspector be as thorough as him. The pictures he took and explained to me and the one problem he found that no other inspector had found in all this time. I tried to spare him from the attic heat for the repair and have him return on another day in the morning but he didn't mind going back in there to fix the problem for us although it was in the dead heat of the day. I just hope the company sees this review and knows what a good technician they have in Cesar."

Deborah M on August 2023

Modern Mechanical is your trusted partner for all your heating and A/C needs in Washington D.C. With our Virginia Class A License 2705 134143A, we are committed to providing top-notch service and expertise. Contact us today for all your home comfort needs.

"I have been a customer for a very long time and this scheduled maintenance and dryer vent cleaning was done by Cesar. I have to say he is one very thorough technician and I was very pleased with his inspection and vent cleaning. His service was so different than some of the ones I've had before. I even had one inspector tell me he didn't need to check in my attic which houses one of our two units. Let me tell you about Cesar, he even cleaned up behind my dryer for me. This is something that is rare in customer service. I have my HVAC seasonally maintenanced and never had a inspector be as thorough as him. The pictures he took and explained to me and the one problem he found that no other inspector had found in all this time. I tried to spare him from the attic heat for the repair and have him return on another day in the morning but he didn't mind going back in there to fix the problem for us although it was in the dead heat of the day. I just hope the company sees this review and knows what a good technician they have in Cesar."

Deborah M on August 2023

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Showing 1-10 of 894

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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