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Thermostat installers and replacers in Ashburn

Avatar for X&M Heating and Cooling
X&M Heating and Cooling
24622 Cable Mill Terrace
5.00(
4
)
Approved Pro
X&M Heating and Cooling
24622 Cable Mill Terrace
5.00(
4
)
Approved Pro
Super Service Award
Customers say: Quick response
1 years of experience
Free onsite estimate

MASTER HVAC License We take great pride in offering the best possible experience with our expertise, quality, and customer service. In order to understand the needs and expectations of our clients; we take great care to work and communicate with everyone in a professional manner. It is our mission to exceed our clients expectations by providing excellent workmanship and complete customer satisfaction, from the start of each project to its completion. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"I wanted to express my utmost satisfaction with the outstanding service and experience I recently had with your team. From the initial consultation to the completion of the heating system installation, every step was handled with professionalism and efficiency. The technicians demonstrated extensive knowledge, ensuring that the system met my specific needs. The punctuality and attention to detail were remarkable, making the entire process seamless and stress-free. I highly recommend X&M to anyone in need of heating and cooling services. Thank you for your exceptional work !"

Kevin F on February 2024

MASTER HVAC License We take great pride in offering the best possible experience with our expertise, quality, and customer service. In order to understand the needs and expectations of our clients; we take great care to work and communicate with everyone in a professional manner. It is our mission to exceed our clients expectations by providing excellent workmanship and complete customer satisfaction, from the start of each project to its completion. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"I wanted to express my utmost satisfaction with the outstanding service and experience I recently had with your team. From the initial consultation to the completion of the heating system installation, every step was handled with professionalism and efficiency. The technicians demonstrated extensive knowledge, ensuring that the system met my specific needs. The punctuality and attention to detail were remarkable, making the entire process seamless and stress-free. I highly recommend X&M to anyone in need of heating and cooling services. Thank you for your exceptional work !"

Kevin F on February 2024


Avatar for Brooks Heating & Air, LLC
Brooks Heating & Air, LLC
9007 Center Street
4.65(
129
)
Approved Pro
Brooks Heating & Air, LLC
9007 Center Street
4.65(
129
)
Approved Pro
Customers say: Quick response
13 years of experience
Free onsite estimate

Brooks Heating & Air is dedicated to providing the best cooling, heating and air solutions for your home or business. If you need air conditioning or heating services from a well-established HVAC company in Northern VA, call Brooks Heating & Air for reliable heating and cooling services.

"satisfied"

Subbarao K on February 2023

Brooks Heating & Air is dedicated to providing the best cooling, heating and air solutions for your home or business. If you need air conditioning or heating services from a well-established HVAC company in Northern VA, call Brooks Heating & Air for reliable heating and cooling services.

"satisfied"

Subbarao K on February 2023


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
105 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


Air We Breathe LLC
97 Spoon Square
5.00(
18
)
Approved Pro
Air We Breathe LLC
97 Spoon Square
5.00(
18
)
Approved Pro
Customers say: Quick response
67 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.

"Gerald was very responsive and even went the extra mile to get additional parts to install my thermostat and replace the squirrel cage on my furnace. Price was reasonable too! Thanks Gerald! I’ll be calling you again.."

LaVaughn C on May 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.

"Gerald was very responsive and even went the extra mile to get additional parts to install my thermostat and replace the squirrel cage on my furnace. Price was reasonable too! Thanks Gerald! I’ll be calling you again.."

LaVaughn C on May 2025


Avatar for Elements Of Energy L.L.C.
Elements Of Energy L.L.C.
8913 Canberra Dr
5.00(
15
)
Approved Pro
Elements Of Energy L.L.C.
8913 Canberra Dr
5.00(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
38 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.

"They installed a chandelier. Did a great job, no issues. Very responsive. "

Dana O on July 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.

"They installed a chandelier. Did a great job, no issues. Very responsive. "

Dana O on July 2025


Avatar for SwiftPro
SwiftPro
11350 Random Hills Rd, Suite 886
5.00(
15
)
Approved Pro
SwiftPro
11350 Random Hills Rd, Suite 886
5.00(
15
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

When your business or home comfort system breaks down, you need a solution—fast. At SwiftPro, we help homeowners in Fairfax, VA and across Northern Virginia get back to comfort with reliable, professional service they can trust. As a local, family-owned business, we take pride in doing the job right—with clear communication, upfront pricing, and respect for your time and your home. Whether it's a quick AC repair, a new air conditioning installation, or help with water heaters, heating systems, or full HVAC replacements, we're here to guide you every step of the way. Our expert technicians deliver solutions that are fast, fair, and built to last—because your comfort and peace of mind matter. 📍 Serving Fairfax, Chantilly, Centreville, Herndon, Vienna, Burke, and surrounding Northern Virginia communities. 📅 Schedule your service today and experience the SwiftPro difference—where family values meet five-star service.

"We chose SwiftPro HVAC for our new Trane dual-fuel HVAC system and had an exceptional experience. The initial consultation with Alex was thorough and informative, with no sales pressure. He clearly explained our options, helping us make a confident choice. SwiftPro's pricing was transparent and highly competitive. They offered the best value out of several quotes and even helped us secure available tax credits. The installation team, Derek and Oscar, was fantastic. They arrived on time, worked efficiently, and completed the complex installation in just one day. They were incredibly professional, courteous, and left our home spotless. Our home is now significantly more comfortable, and we're excited about the future energy savings. For a reliable, knowledgeable, and fairly-priced HVAC company, we wholeheartedly recommend SwiftPro. They exceeded all expectations!"

Eric S on July 2025

When your business or home comfort system breaks down, you need a solution—fast. At SwiftPro, we help homeowners in Fairfax, VA and across Northern Virginia get back to comfort with reliable, professional service they can trust. As a local, family-owned business, we take pride in doing the job right—with clear communication, upfront pricing, and respect for your time and your home. Whether it's a quick AC repair, a new air conditioning installation, or help with water heaters, heating systems, or full HVAC replacements, we're here to guide you every step of the way. Our expert technicians deliver solutions that are fast, fair, and built to last—because your comfort and peace of mind matter. 📍 Serving Fairfax, Chantilly, Centreville, Herndon, Vienna, Burke, and surrounding Northern Virginia communities. 📅 Schedule your service today and experience the SwiftPro difference—where family values meet five-star service.

"We chose SwiftPro HVAC for our new Trane dual-fuel HVAC system and had an exceptional experience. The initial consultation with Alex was thorough and informative, with no sales pressure. He clearly explained our options, helping us make a confident choice. SwiftPro's pricing was transparent and highly competitive. They offered the best value out of several quotes and even helped us secure available tax credits. The installation team, Derek and Oscar, was fantastic. They arrived on time, worked efficiently, and completed the complex installation in just one day. They were incredibly professional, courteous, and left our home spotless. Our home is now significantly more comfortable, and we're excited about the future energy savings. For a reliable, knowledgeable, and fairly-priced HVAC company, we wholeheartedly recommend SwiftPro. They exceeded all expectations!"

Eric S on July 2025


Avatar for Appleton Campbell
Appleton Campbell
285 Alwington Blvd
4.64(
320
)
Approved Pro
Appleton Campbell
285 Alwington Blvd
4.64(
320
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1286 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

"Being a MVP customer was time for Heating/Cooling safety inspections. Kevin Stanley was the HVAC Service Tech assigned to the job. He went over a few issues on our older unit he found during his inspection. I never felt pressured to have the work done and so glad he resolved them on the same day. He definitely went out of his way doing a great job. He explained everything to me that he was doing and also answering all the questions I had. The price was reasonable. Will definitely call Appleton Campbell when needing home repairs, this is our 3rd project they’ve taken care of. Thanks again"

cindy s on May 2025

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

"Being a MVP customer was time for Heating/Cooling safety inspections. Kevin Stanley was the HVAC Service Tech assigned to the job. He went over a few issues on our older unit he found during his inspection. I never felt pressured to have the work done and so glad he resolved them on the same day. He definitely went out of his way doing a great job. He explained everything to me that he was doing and also answering all the questions I had. The price was reasonable. Will definitely call Appleton Campbell when needing home repairs, this is our 3rd project they’ve taken care of. Thanks again"

cindy s on May 2025


Avatar for SwiftPro HVAC
SwiftPro HVAC
11350 Random Hills Rd
5.00(
17
)
Approved Pro
SwiftPro HVAC
11350 Random Hills Rd
5.00(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1033 local quotes requested

SwiftPro is a local, family-owned HVAC and plumbing company proudly serving Fairfax and Northern Virginia. Our expert technicians provide efficient solutions for heating, cooling, water heaters, and more—with clear communication, upfront pricing, and respect for your time and home. Whether it’s a quick AC repair or full system install, wether it's Trane, Goodman, American Standard or any other brand; we deliver fast, reliable service rooted in family values. Call us now! Or send a message!

"Great job. Technician was solid, professional & friendly. Resolved the issue efficiently."

Eric S on July 2025

SwiftPro is a local, family-owned HVAC and plumbing company proudly serving Fairfax and Northern Virginia. Our expert technicians provide efficient solutions for heating, cooling, water heaters, and more—with clear communication, upfront pricing, and respect for your time and home. Whether it’s a quick AC repair or full system install, wether it's Trane, Goodman, American Standard or any other brand; we deliver fast, reliable service rooted in family values. Call us now! Or send a message!

"Great job. Technician was solid, professional & friendly. Resolved the issue efficiently."

Eric S on July 2025


Avatar for McCrea Heating & Air Conditioning Services of VA
McCrea Heating & Air Conditioning Services of VA
5083 Lee Hwy
4.57(
363
)
Approved Pro
McCrea Heating & Air Conditioning Services of VA
5083 Lee Hwy
4.57(
363
)
Approved Pro
Customers say: Super punctual
1749 local quotes requested
89 years of experience

McCrea is a family owned business that has served our area since 1936. Financing and rebates are available on Trane systems installed by McCrea. Resistrictions apply and these are limited time offers call for details. "Its hard to stop a Trane"

"McCrea has been servicing my home unit for 9 years and every service appointment has been timely and informative. Scott has been the technician on-site for this period of time and he is outstanding; knowledgeable, personable, interactive and thorough with his inspections."

Tom S on April 2024

McCrea is a family owned business that has served our area since 1936. Financing and rebates are available on Trane systems installed by McCrea. Resistrictions apply and these are limited time offers call for details. "Its hard to stop a Trane"

"McCrea has been servicing my home unit for 9 years and every service appointment has been timely and informative. Scott has been the technician on-site for this period of time and he is outstanding; knowledgeable, personable, interactive and thorough with his inspections."

Tom S on April 2024


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
1146 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 902
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