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Thermostat installers and replacers in Seattle

Custom Electrical Contractors, Inc.

2215 Sumner Tapps Highway East
4.75(
38
)
Approved Pro

Custom Electrical Contractors, Inc.

2215 Sumner Tapps Highway East
4.75(
38
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our review from satisfied clients. Give us a call today so we can answer all of your questions. Satisfaction guaranteed.

"Very organized, very efficient!"

jaime a on August 2017

We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our review from satisfied clients. Give us a call today so we can answer all of your questions. Satisfaction guaranteed.

"Very organized, very efficient!"

jaime a on August 2017


Avatar for Alpina Mechanical, LLC

Alpina Mechanical, LLC

3229 156th Street SW
4.67(
3
)
Approved Pro

Alpina Mechanical, LLC

3229 156th Street SW
4.67(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Here at Alpina Mechanical we are a fully licenses and insured HVAC company working with commercial and residential customers. No job is out of our wheelhouse and we do repairs and installs on all HVAc systems. Call now for a free estimate.

"Because of their personnel; exceptional competence, efficiency, and attention to detail, every installation and repair was completed to the highest standards. They provided prompt service, transparent communication, and reasonable prices. Alpina Mechanical was a dependable option for HVAC needs because they continuously provided dependable and high-quality service, regardless of the nature of the work from routine maintenance to emergency repairs."

Cloe G on July 2024

Here at Alpina Mechanical we are a fully licenses and insured HVAC company working with commercial and residential customers. No job is out of our wheelhouse and we do repairs and installs on all HVAc systems. Call now for a free estimate.

"Because of their personnel; exceptional competence, efficiency, and attention to detail, every installation and repair was completed to the highest standards. They provided prompt service, transparent communication, and reasonable prices. Alpina Mechanical was a dependable option for HVAC needs because they continuously provided dependable and high-quality service, regardless of the nature of the work from routine maintenance to emergency repairs."

Cloe G on July 2024


Avatar for Belred Heating, Cooling & Plumbing, LLC

Belred Heating, Cooling & Plumbing, LLC

10733 47th Place West
4.55(
497
)
Approved Pro

Belred Heating, Cooling & Plumbing, LLC

10733 47th Place West
4.55(
497
)
Approved Pro
Super Service Award
Customers say: True professional
282 local quotes requested
39 years of experience

Since 1986, Bel-Red Energy Solutions, LLC, has been here to help you with products and services that improve your homes' efficiency and comfort, while providing a healthy and safe environment in which to live. Our focus on residential systems gives us one of the most skilled teams, with the best solutions for you and your home. Call today to schedule an appointment! We offer FREE comprehensive estimates on Heating, Air Conditioning or Heat Pump installations.

"Free quote. Quick response. Professional installation of a mini split. Would recommend."

Liz T on August 2025

Since 1986, Bel-Red Energy Solutions, LLC, has been here to help you with products and services that improve your homes' efficiency and comfort, while providing a healthy and safe environment in which to live. Our focus on residential systems gives us one of the most skilled teams, with the best solutions for you and your home. Call today to schedule an appointment! We offer FREE comprehensive estimates on Heating, Air Conditioning or Heat Pump installations.

"Free quote. Quick response. Professional installation of a mini split. Would recommend."

Liz T on August 2025


Avatar for Lake Sound Contracting LLC

Lake Sound Contracting LLC

2359 21st Ave. South
5.00(
9
)
Approved Pro

Lake Sound Contracting LLC

2359 21st Ave. South
5.00(
9
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
84 local quotes requested

I specialize in remodeling and home repairs for all aspects of the home. I will always take utmost care to make sure it is done right above industry standards. The customer will always be clearly informed what are the best options and understand the cost involved. I have been in business since 2013 and have many happy customers.

"Tom has completed several jobs for us, and each time, the end product was excellent. He is easy to work with, communicates clearly, gives fair prices, and completes the work as asked. Very trustworthy and punctilious. We would hire him again without reservations."

Jennifer M on January 2025

I specialize in remodeling and home repairs for all aspects of the home. I will always take utmost care to make sure it is done right above industry standards. The customer will always be clearly informed what are the best options and understand the cost involved. I have been in business since 2013 and have many happy customers.

"Tom has completed several jobs for us, and each time, the end product was excellent. He is easy to work with, communicates clearly, gives fair prices, and completes the work as asked. Very trustworthy and punctilious. We would hire him again without reservations."

Jennifer M on January 2025


Avatar for AireServ of Kitsap County

AireServ of Kitsap County

3500 Anderson Hill Rd. Unit 202
5.00(
2
)
Approved Pro

AireServ of Kitsap County

3500 Anderson Hill Rd. Unit 202
5.00(
2
)
Approved Pro
52 local quotes requested
1 years of experience

AireServ of Kitsap County is proud to be a locally and veteran-owned business. Since opening our doors, we have built our company on providing customers with the highest quality products and service at a fair price. From installation and replacement to service and repair, our customers know that they can count on us to provide the highest quality products and service at a fair price. Let us show you why AireServ customers become customers for life, get in touch today! -Veteran Owned Business -24/7 Emergency Calls Available

"The install team was quick and efficient. It took them about 4.5 hours, start to finish, which was far quicker than I thought it would take. They left the area clean and the install looks very professional. Unit works great; it was 90 degrees the day after the install and the unit did its job and kept the house cool."

Tammie D on July 2025

AireServ of Kitsap County is proud to be a locally and veteran-owned business. Since opening our doors, we have built our company on providing customers with the highest quality products and service at a fair price. From installation and replacement to service and repair, our customers know that they can count on us to provide the highest quality products and service at a fair price. Let us show you why AireServ customers become customers for life, get in touch today! -Veteran Owned Business -24/7 Emergency Calls Available

"The install team was quick and efficient. It took them about 4.5 hours, start to finish, which was far quicker than I thought it would take. They left the area clean and the install looks very professional. Unit works great; it was 90 degrees the day after the install and the unit did its job and kept the house cool."

Tammie D on July 2025


Avatar for Seattle Best Handyman

Seattle Best Handyman

15548 Bothell Way NE
4.51(
37
)
Approved Pro

Seattle Best Handyman

15548 Bothell Way NE
4.51(
37
)
Approved Pro
Customers say: True professional
87 local quotes requested
36 years of experience

Seattle Best Handyman is your one-stop shop for all your household repair needs! Here at Seattle Best Handyman we strive to provide you with quality service at affordable rates. We are located in the heart of Seattle and provide service throughout the Puget Sound. We are a “one call does it all” company. We can handle all big or small jobs efficiently and cost effectively.

"Bill and Luke were professional and efficient. They worked quickly and I could tell they had a lot of experience. They were very upfront about their hourly charge. They discussed potential solutions before implementing them to get my, and each other's input, and had me review and test items as they were completed. I was thrilled to get so much done in 5 hours and I wouldn't hesitate to hire them again."

Christa E on January 2024

Seattle Best Handyman is your one-stop shop for all your household repair needs! Here at Seattle Best Handyman we strive to provide you with quality service at affordable rates. We are located in the heart of Seattle and provide service throughout the Puget Sound. We are a “one call does it all” company. We can handle all big or small jobs efficiently and cost effectively.

"Bill and Luke were professional and efficient. They worked quickly and I could tell they had a lot of experience. They were very upfront about their hourly charge. They discussed potential solutions before implementing them to get my, and each other's input, and had me review and test items as they were completed. I was thrilled to get so much done in 5 hours and I wouldn't hesitate to hire them again."

Christa E on January 2024


Avatar for Arden Heating & Cooling

Arden Heating & Cooling

42316 264th Avenue Southeast
4.20(
5
)
Approved Pro

Arden Heating & Cooling

42316 264th Avenue Southeast
4.20(
5
)
Approved Pro
768 local quotes requested
Free onsite estimate

At Arden Heating & Cooling we specialize in the sales, installation, and repair of residential heating and air conditioning systems. Including Gas furnaces, Heat pumps, Ductless units, A/C, and Water Heaters. We are an owner operated business that has over 15 years in the HVAC trade. We take pride in the quality of our work and our ability to stay reasonably priced compared to others. We want to make you as comfortable in your home as possible. Here at Arden Heating & Cooling we offer free estimates and discounts for new systems, existing system upgrades, and maintenance plans. All of our work includes a manufacturers warranty and a 5yr labor warranty on any of the work that we do. Look forward to doing business with you.

"A prompt and thorough response, unlike simply informing me that there was nothing they could do, they actively researched the warranty on my current system (expired and void due to builder installation) before discussing a replacement option. I was then presented with several options, each accompanied by a quote. When asked, they recommended that I opt for a more economical quote that better suited my usage and requirements. I highly recommend this company. They were punctual and worked diligently, even during the peak summer months in the hottest room in my house (the attic). I will certainly recommend them to any of my friends and will utilize their services for any future needs related to air conditioning or furnace repair, as well as routine maintenance."

Chris P on November 2024

At Arden Heating & Cooling we specialize in the sales, installation, and repair of residential heating and air conditioning systems. Including Gas furnaces, Heat pumps, Ductless units, A/C, and Water Heaters. We are an owner operated business that has over 15 years in the HVAC trade. We take pride in the quality of our work and our ability to stay reasonably priced compared to others. We want to make you as comfortable in your home as possible. Here at Arden Heating & Cooling we offer free estimates and discounts for new systems, existing system upgrades, and maintenance plans. All of our work includes a manufacturers warranty and a 5yr labor warranty on any of the work that we do. Look forward to doing business with you.

"A prompt and thorough response, unlike simply informing me that there was nothing they could do, they actively researched the warranty on my current system (expired and void due to builder installation) before discussing a replacement option. I was then presented with several options, each accompanied by a quote. When asked, they recommended that I opt for a more economical quote that better suited my usage and requirements. I highly recommend this company. They were punctual and worked diligently, even during the peak summer months in the hottest room in my house (the attic). I will certainly recommend them to any of my friends and will utilize their services for any future needs related to air conditioning or furnace repair, as well as routine maintenance."

Chris P on November 2024


Avatar for Blue Flame Heating and Air Conditioning

Blue Flame Heating and Air Conditioning

7116 220th St SW
4.61(
812
)
Approved Pro

Blue Flame Heating and Air Conditioning

7116 220th St SW
4.61(
812
)
Approved Pro
Customers say: Super punctual
782 local quotes requested
31 years of experience

As COVID-19 continues to impact the global community, we at Blue Flame want to update you on the steps we have taken to ensure the safety of our employees and customers, please visit our website at www.blueflamecomfort.com for a detailed statement. Blue Flame Comfort specializes in residential install, service as well as maintenance with a 100% satisfaction guarantee. Ask us about tankless water heaters, high-efficiency furnaces, and heat pumps! Our office and standard hours are listed but our dedicated team of background-checked and thoroughly trained technicians are ready and willing to assist you 24 hours a day, 7 days a week for emergency services.

"A tech "Graham" came out for an annual maintenance visit on a reliable 15 year old York Furnace with a 20 year guarantee on the heat exchanger which Blue Flame installed in 2010. He could not explain why he was here, and when I told him "routine annual maintenance" he said, "Let's see what we can find". That was the first sign we had opposite agendas. It went south from there. After lots of loud grinding noises, he supposedly found a shiny jagged gash which he showed me on a scope. I am extremely suspicious he created it himself with a power tool. The end result was the furnace was no longer usable and cost me $8K to have them replace. To add insult to injury that guy ruined my screen door, which won't close anymore. I have ended my 15 year relationship with this company, since I no longer trust them."

Dai M on June 2025

As COVID-19 continues to impact the global community, we at Blue Flame want to update you on the steps we have taken to ensure the safety of our employees and customers, please visit our website at www.blueflamecomfort.com for a detailed statement. Blue Flame Comfort specializes in residential install, service as well as maintenance with a 100% satisfaction guarantee. Ask us about tankless water heaters, high-efficiency furnaces, and heat pumps! Our office and standard hours are listed but our dedicated team of background-checked and thoroughly trained technicians are ready and willing to assist you 24 hours a day, 7 days a week for emergency services.

"A tech "Graham" came out for an annual maintenance visit on a reliable 15 year old York Furnace with a 20 year guarantee on the heat exchanger which Blue Flame installed in 2010. He could not explain why he was here, and when I told him "routine annual maintenance" he said, "Let's see what we can find". That was the first sign we had opposite agendas. It went south from there. After lots of loud grinding noises, he supposedly found a shiny jagged gash which he showed me on a scope. I am extremely suspicious he created it himself with a power tool. The end result was the furnace was no longer usable and cost me $8K to have them replace. To add insult to injury that guy ruined my screen door, which won't close anymore. I have ended my 15 year relationship with this company, since I no longer trust them."

Dai M on June 2025


Avatar for Seatown Electric Plumbing Heating & Air

Seatown Electric Plumbing Heating & Air

4200 78th St SW
4.80(
1,336
)
Approved Pro

Seatown Electric Plumbing Heating & Air

4200 78th St SW
4.80(
1,336
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
4865 local quotes requested

As a provider of essential services here in the Puget Sound Region, Seatown Electric Plumbing Heating & Air remains open to serve you. To ensure the safety of our customers our technicians' health is monitored closely and we are following the highest safety recommendations, including the use of masks and protective gloves. The health and wellness of our customers and employees will always come first. We are here for you! Seatown provides Electrical, Plumbing, Heating, and A/C services in the Greater Puget Sound region, concentrating in King and Snohomish county. With our customer satisfaction guarantee, you can rest assured that your system will outlast industry standards, providing safety, and comfort for your home, for many years to come. You will never have to search for a new electrical, plumbing or heating and air contractor again. That is our promise. Seatown continues to lead Angie's List, with overall "A" reviews, by serving one customer at a time and giving top-notch service. We hope to build long-lasting customer relationships, throughout Washington State. Our world-class technicians will show up to your door in clean uniforms, with visible ID and state certification, trained to over-exceed your expectations, and never leaving a mess behind. We are Seatown Electric Plumbing Heating And Air, Washington's all in one contractor.

"They will tell you that you are in good hands but as soon as they get the work done, their hands turn over and dump you onto the ground. We had a heat pump installed by them that has issues but getting them back to fix those issues is impossible. They already got paid. What do they care? They were expensive to begin with but we fell for their untruths about quality and service. Don’t let yourself fall into that same trap."

David B on August 2025

As a provider of essential services here in the Puget Sound Region, Seatown Electric Plumbing Heating & Air remains open to serve you. To ensure the safety of our customers our technicians' health is monitored closely and we are following the highest safety recommendations, including the use of masks and protective gloves. The health and wellness of our customers and employees will always come first. We are here for you! Seatown provides Electrical, Plumbing, Heating, and A/C services in the Greater Puget Sound region, concentrating in King and Snohomish county. With our customer satisfaction guarantee, you can rest assured that your system will outlast industry standards, providing safety, and comfort for your home, for many years to come. You will never have to search for a new electrical, plumbing or heating and air contractor again. That is our promise. Seatown continues to lead Angie's List, with overall "A" reviews, by serving one customer at a time and giving top-notch service. We hope to build long-lasting customer relationships, throughout Washington State. Our world-class technicians will show up to your door in clean uniforms, with visible ID and state certification, trained to over-exceed your expectations, and never leaving a mess behind. We are Seatown Electric Plumbing Heating And Air, Washington's all in one contractor.

"They will tell you that you are in good hands but as soon as they get the work done, their hands turn over and dump you onto the ground. We had a heat pump installed by them that has issues but getting them back to fix those issues is impossible. They already got paid. What do they care? They were expensive to begin with but we fell for their untruths about quality and service. Don’t let yourself fall into that same trap."

David B on August 2025


Ares Comfort Systems

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Ares Comfort Systems

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
414 local quotes requested
1 years of experience

Family owned business with over 20 plus years experience. Heating & A/C -

Family owned business with over 20 plus years experience. Heating & A/C -

...
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FAQs for thermostat installation and replacement projects in Seattle, WA

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 Seattle, WA 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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