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Find Thermostat installers and replacers in Arlington

Mayday HVAC, LLC

5.00(
3
)
Approved Pro

Mayday HVAC, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Mayday HVAC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Provided great service when it was an emergency at my mothers house and got here AC back up and running right away and was also able to service my unit same day. He showed me exactly what was wrong and was very honest and fair with the pricing and repairs. Saved my mother a lot of money!!! He definitely has a customer for life with me. His knowledge and professionalism is excellent!!!! I would recommend him to anyone!"

Mesay B on March 2024

Mayday HVAC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Provided great service when it was an emergency at my mothers house and got here AC back up and running right away and was also able to service my unit same day. He showed me exactly what was wrong and was very honest and fair with the pricing and repairs. Saved my mother a lot of money!!! He definitely has a customer for life with me. His knowledge and professionalism is excellent!!!! I would recommend him to anyone!"

Mesay B on March 2024


Avatar for X&M Heating and Cooling

X&M Heating and Cooling

5.00(
5
)
Approved Pro

X&M Heating and Cooling

5.00(
5
)
Approved Pro
Customers say: Quick response
2 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.

"We had an absolutely fantastic experience with X&M Heating and Cooling! From start to finish, Richard was beyond responsive, professional, and genuinely a pleasure to work with. You don’t always expect replacing major home systems to feel stress-free, but Richard made the whole process smooth and even enjoyable. They replaced our AC/Furnace (Condenser, Coil Pack, and Heater) as well as our hot water tank—a big job—and the crew knocked it out of the park. Everything was installed with care, attention to detail, and a clear pride in their workmanship. Richard took the time to explain what was happening every step of the way, which gave us total peace of mind. What stood out most, though, was the responsiveness. Whenever I had a question, Richard was quick to answer, patient, and genuinely friendly—it felt like working with a trusted neighbor rather than just a contractor. If you’re looking for a team that does top-notch work - don't look any further."

Joe L on September 2025

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.

"We had an absolutely fantastic experience with X&M Heating and Cooling! From start to finish, Richard was beyond responsive, professional, and genuinely a pleasure to work with. You don’t always expect replacing major home systems to feel stress-free, but Richard made the whole process smooth and even enjoyable. They replaced our AC/Furnace (Condenser, Coil Pack, and Heater) as well as our hot water tank—a big job—and the crew knocked it out of the park. Everything was installed with care, attention to detail, and a clear pride in their workmanship. Richard took the time to explain what was happening every step of the way, which gave us total peace of mind. What stood out most, though, was the responsiveness. Whenever I had a question, Richard was quick to answer, patient, and genuinely friendly—it felt like working with a trusted neighbor rather than just a contractor. If you’re looking for a team that does top-notch work - don't look any further."

Joe L on September 2025


"I’ve been a loyal Snell customer for years, but this recent experience was deeply disappointing. After our AC failed in August, Snell diagnosed a leaking evaporator coil. We chose to replace the system through them, and the salesperson took time to evaluate the setup in advance. However, on installation day, the crew arrived without the correct ductwork and had to make adjustments on the fly. Unfortunately, the adjustments were poorly executed: • The Aprilaire humidifier was mounted on sloped ductwork rather than a level surface, contrary to manufacturer specifications. • The hole for the humidifier was cut inaccurately. • The drain line was left kinked in multiple places. Aprilaire support later confirmed the humidifier was not installed correctly and warned this could lead to water backing up into the system — a concern I had raised with the installers before they left. Despite multiple follow-up attempts, I received no meaningful response. I was told my concerns would be escalated, but no one followed through. This was a major investment, and I now feel I need to bring in another HVAC team to correct issues that should have been resolved from the start. I’ve recommended Snell in the past, but I can’t in good faith do so now after this experience."

Will H on September 2025

Family owned & operated. Financing available. Credit cards. All work done by experienced professionals to ensure consistent high quality. Award winning company at your service.

"I’ve been a loyal Snell customer for years, but this recent experience was deeply disappointing. After our AC failed in August, Snell diagnosed a leaking evaporator coil. We chose to replace the system through them, and the salesperson took time to evaluate the setup in advance. However, on installation day, the crew arrived without the correct ductwork and had to make adjustments on the fly. Unfortunately, the adjustments were poorly executed: • The Aprilaire humidifier was mounted on sloped ductwork rather than a level surface, contrary to manufacturer specifications. • The hole for the humidifier was cut inaccurately. • The drain line was left kinked in multiple places. Aprilaire support later confirmed the humidifier was not installed correctly and warned this could lead to water backing up into the system — a concern I had raised with the installers before they left. Despite multiple follow-up attempts, I received no meaningful response. I was told my concerns would be escalated, but no one followed through. This was a major investment, and I now feel I need to bring in another HVAC team to correct issues that should have been resolved from the start. I’ve recommended Snell in the past, but I can’t in good faith do so now after this experience."

Will H on September 2025


Avatar for DHL Handyman

DHL Handyman

5.00(
5
)
Approved Pro

DHL Handyman

5.00(
5
)
Approved Pro
Super Service Award
Customers say: Quick response
6 years of experience

I’m David, your trusted handyman in Annandale, VA. I came to this profession from a different angle than most. Prior to getting into handyman work, I spent fifteen years working in the engine rooms of cargo ships. Being in the middle of the ocean taught me to face problems head-on: I was an electrician, plumber, machinist, welder, and even an appliance repairman. If the right part was missing, I adapted—fixing what was at hand, crafting a new part, or finding an alternative solution. This drive to find solutions has not changed. While today’s world often leans towards a “throw out-and-replace” mindset, I have always gravitated towards mending and restoring. My commitment is simple: to deliver the best service possible. And if a task is beyond my scope of expertise or needs specialized knowledge, I will always be honest about it. In my opinion, it is better to steer you in the right direction than to lead you off course.

"Good, was pleased"

David L on August 2025

I’m David, your trusted handyman in Annandale, VA. I came to this profession from a different angle than most. Prior to getting into handyman work, I spent fifteen years working in the engine rooms of cargo ships. Being in the middle of the ocean taught me to face problems head-on: I was an electrician, plumber, machinist, welder, and even an appliance repairman. If the right part was missing, I adapted—fixing what was at hand, crafting a new part, or finding an alternative solution. This drive to find solutions has not changed. While today’s world often leans towards a “throw out-and-replace” mindset, I have always gravitated towards mending and restoring. My commitment is simple: to deliver the best service possible. And if a task is beyond my scope of expertise or needs specialized knowledge, I will always be honest about it. In my opinion, it is better to steer you in the right direction than to lead you off course.

"Good, was pleased"

David L on August 2025


Avatar for M.E. Flow

M.E. Flow

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

M.E. Flow

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
35 local quotes requested
75 years of experience

M.E. Flow offers FREE in-home consultations for replacement HVAC systems and we are an authorized dealer of most major brands. Established in 1951 by Millard Edward Flow we remain family owned. Replacing your HVAC system and water heater is a big investment. When you go with M.E. Flow your satisfaction is guaranteed. We do not install customer supplied equipment, do new construction, or give quotes over the phone. We send a professional home comfort advisor to your home--even meet you after hours. During your home visit we will design you the perfect system, answer all your questions, and get your system in the family budget. Financing and/or rebates are typically available. Qualified Staff: You get a team of professionals, NATE certification means your getting the best. Company employees are required to pass a background investigation which include a criminal records check and drug testing. We also offer the best guarantees.

M.E. Flow offers FREE in-home consultations for replacement HVAC systems and we are an authorized dealer of most major brands. Established in 1951 by Millard Edward Flow we remain family owned. Replacing your HVAC system and water heater is a big investment. When you go with M.E. Flow your satisfaction is guaranteed. We do not install customer supplied equipment, do new construction, or give quotes over the phone. We send a professional home comfort advisor to your home--even meet you after hours. During your home visit we will design you the perfect system, answer all your questions, and get your system in the family budget. Financing and/or rebates are typically available. Qualified Staff: You get a team of professionals, NATE certification means your getting the best. Company employees are required to pass a background investigation which include a criminal records check and drug testing. We also offer the best guarantees.


Avatar for CIC

CIC

5.00(
18
)
Approved Pro

CIC

5.00(
18
)
Approved Pro
Super Service Award
Customers say: Quick response
13 local quotes requested
2 years of experience

Our mission is to be a handyman 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. We won't leave until the job is done right! Call or click to schedule an estimate today!

"They applied great due diligence in finding the right spot on the wall to fix my wooden wall mount for bike. Job done quick and efficiently. "

Mahesh p on January 2026

Our mission is to be a handyman 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. We won't leave until the job is done right! Call or click to schedule an estimate today!

"They applied great due diligence in finding the right spot on the wall to fix my wooden wall mount for bike. Job done quick and efficiently. "

Mahesh p on January 2026


Avatar for Home Sweet Home Services

Home Sweet Home Services

4.93(
29
)
Approved Pro

Home Sweet Home Services

4.93(
29
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
6 years of experience

With over 15 years in service and our in-house appliance experts. Home Sweet Home Hvac Services has been a go-to for our neighbors in the community for years. We aim to treat each of our customers to the best service to make their appliance repair process as easy as possible! Please reach out for a free quote today at 571-242-3890 or info@hshhvac.com

"I recently had an issue with my heating and AC system, and I'm so glad I called Home Sweet Home Services . From the very first interaction, their professionalism was outstanding. Sam arrived on time, was very polite, and clearly knew his stuff. What really impressed me was his honesty and commitment to helping me understand the problem. Other companies I've dealt with seemed more interested in selling me expensive repairs. Home Sweet Home took the time to explain exactly what was going on with my system in simple terms. Sam didn't push for unnecessary work and instead focused on the most effective and affordable solution. Sam truly treated me like he was helping a friend or family member or even protecting his own wallet. This approach saved me money and gave me incredible peace of mind. It's rare to find a company that genuinely prioritizes the customer's best interest over their own profit. I highly recommend Home Sweet Home Services and they have earned a customer for life. "

Nicole M on January 2026

With over 15 years in service and our in-house appliance experts. Home Sweet Home Hvac Services has been a go-to for our neighbors in the community for years. We aim to treat each of our customers to the best service to make their appliance repair process as easy as possible! Please reach out for a free quote today at 571-242-3890 or info@hshhvac.com

"I recently had an issue with my heating and AC system, and I'm so glad I called Home Sweet Home Services . From the very first interaction, their professionalism was outstanding. Sam arrived on time, was very polite, and clearly knew his stuff. What really impressed me was his honesty and commitment to helping me understand the problem. Other companies I've dealt with seemed more interested in selling me expensive repairs. Home Sweet Home took the time to explain exactly what was going on with my system in simple terms. Sam didn't push for unnecessary work and instead focused on the most effective and affordable solution. Sam truly treated me like he was helping a friend or family member or even protecting his own wallet. This approach saved me money and gave me incredible peace of mind. It's rare to find a company that genuinely prioritizes the customer's best interest over their own profit. I highly recommend Home Sweet Home Services and they have earned a customer for life. "

Nicole M on January 2026


Avatar for Elements Of Energy L.L.C.

Elements Of Energy L.L.C.

5.00(
17
)
Approved Pro

Elements Of Energy L.L.C.

5.00(
17
)
Approved Pro
Super Service Award
Customers say: Quick response
10 local quotes requested
4 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.

"Job well done. Reasonable prices, I will keep using for future projects."

Red B on December 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.

"Job well done. Reasonable prices, I will keep using for future projects."

Red B on December 2025


Avatar for Zee Servicing LLC

Zee Servicing LLC

5.00(
1
)
Approved Pro

Zee Servicing LLC

5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

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.

"Did work in a timely fashion."

Roz S on July 2025

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.

"Did work in a timely fashion."

Roz S on July 2025


Avatar for Jim the Handyman

Jim the Handyman

4.87(
486
)
Approved Pro

Jim the Handyman

4.87(
486
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
20 local quotes requested

Jim The Handyman is a family run handyman business established in 1984 in Northern Virginia. We offer a wide range of services and free estimates, so we can get your home to-do list checked off, and your house in tip top shape! Jim The Handyman specializes in the home improvement and repair industry with our core competencies being carpentry, drywall, door installation and repair, screen and window repair, tiling and tile repair, caulking, painting, pressure washing, furniture repair and assembly, light bulb and filter replacement, odd jobs, and small jobs. We pride ourselves on our quality work, cleanliness, and trustworthy service. We’re licensed and insured, and have references on hand for your peace of mind. Give us a call so we can get your house in tip-top shape!

"Jim the Handyman is fantastic! We recently had several small repairs done (we waited to bundle them into one job to make it easier for everyone). The crew they sent out did all of them in less time than I expected, and for less than half of what I expected to pay. The work was top notch (something we've seen in the other things they've done for us) and we are very pleased. In fact, I have to call them to schedule some other work. Jim the Handyman should be your go-to provider for anything you need done."

Ed H on December 2025

Jim The Handyman is a family run handyman business established in 1984 in Northern Virginia. We offer a wide range of services and free estimates, so we can get your home to-do list checked off, and your house in tip top shape! Jim The Handyman specializes in the home improvement and repair industry with our core competencies being carpentry, drywall, door installation and repair, screen and window repair, tiling and tile repair, caulking, painting, pressure washing, furniture repair and assembly, light bulb and filter replacement, odd jobs, and small jobs. We pride ourselves on our quality work, cleanliness, and trustworthy service. We’re licensed and insured, and have references on hand for your peace of mind. Give us a call so we can get your house in tip-top shape!

"Jim the Handyman is fantastic! We recently had several small repairs done (we waited to bundle them into one job to make it easier for everyone). The crew they sent out did all of them in less time than I expected, and for less than half of what I expected to pay. The work was top notch (something we've seen in the other things they've done for us) and we are very pleased. In fact, I have to call them to schedule some other work. Jim the Handyman should be your go-to provider for anything you need done."

Ed H on December 2025

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FAQs for thermostat installation and replacement projects in Arlington, VA

Smart thermostats may be worth it for many homeowners. They come with various features, including voice control and smartphone apps. Vacation mode can help lower energy usage when you’re out of town for an extended period. Alert warnings let you know about major spikes or drops in temperature. Smartphone apps can track energy usage, and smart thermostats can learn your routine over time to adjust your temperature and reduce wasted energy consumption automatically.

You typically do not need more than one smart thermostat. While it’s common to see multiple mechanical thermostats throughout a large home, multiple smart thermostats may try to override each other. This can lead to problems with the HVAC system. Ensure the unit you buy has the option for dual- or multi-zoned systems to avoid compatibility issues.

Installing a programmable or smart thermostat may save you $180 per year in utility costs. A big part of this comes from a smart thermostat’s ability to learn and adapt to your regular routines. With smartphone apps or web-based interfaces, you also have the option to control your thermostat when you’re not home.

The Arlington, VA homeowners’ guide to thermostat installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.