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Find Thermostat installers and replacers in Fairfield

Avatar for Elevated Comfort

Elevated Comfort

374 Blodgett Street, Unit 4
4.68(
39
)
Approved Pro

Elevated Comfort

374 Blodgett Street, Unit 4
4.68(
39
)
Approved Pro
Super Service Award
Customers say: True professional
129 local quotes requested
4 years of experience

Elevated Comfort is your local, family owned HVAC company. We specialize in heating and cooling optimization, whether you need diagnostics, repairs, or full system replacement. Our skilled technicians and comfort advisors put you first and will work to get you the best adapted solution for your home. We are trained and qualified on the newest generation of efficient A2L refrigerants, and specialize in all electric heat pump systems. Our estimates are always free and we stand behind our work. We hope to be of service to you soon for all your HVAC needs! Call us today so we can begin resolving your issue.

"Professional, thorough. Would re-hire."

Michael P on June 2025

Elevated Comfort is your local, family owned HVAC company. We specialize in heating and cooling optimization, whether you need diagnostics, repairs, or full system replacement. Our skilled technicians and comfort advisors put you first and will work to get you the best adapted solution for your home. We are trained and qualified on the newest generation of efficient A2L refrigerants, and specialize in all electric heat pump systems. Our estimates are always free and we stand behind our work. We hope to be of service to you soon for all your HVAC needs! Call us today so we can begin resolving your issue.

"Professional, thorough. Would re-hire."

Michael P on June 2025


Avatar for Perfect Star Heating and Air Conditioning

Perfect Star Heating and Air Conditioning

4415 Cowell Road
4.91(
249
)
Approved Pro

Perfect Star Heating and Air Conditioning

4415 Cowell Road
4.91(
249
)
Approved Pro
Super Service Award
Customers say: Quick response
956 local quotes requested
9 years of experience

With over 30 years of experience, Perfect Star Heating, Cooling, & Electrical is a locally owned and operated family business serving Alameda & Contra Costa County. We service all makes and models, offering top-quality comfort and energy efficiency solutions. Specializing in Furnace/Heating, Air Conditioning, and Ductless Mini-Split installation, we also provide repair and maintenance for Central HVAC systems, Ductwork, Indoor Air Quality, Electrical Repair & Installation, and Solar Installation. Free estimates are available for HVAC system replacement, new installations, and solar solutions. As a Lennox Premier Dealer, Daikin Comfort Pro, and WellAir Elite dealer, we are Diamond Certified, hold an A+ BBB Rating, and have been voted “The Best Heating & Air Company” and “The Most Community-Minded Company” by The Press in Brentwood, CA for two years. We are also SFGATE’s Best of the Bay Area Heating & A/C Service provider.

"Our technician Emanuel, was on time, delivered what he said he would and was professional, competent, and professional at all times. He ran into a challenging situation but in the end the project was completed to our satisfaction. Thanks Perfect Star, Robert Costa"

Robert C on October 2025

With over 30 years of experience, Perfect Star Heating, Cooling, & Electrical is a locally owned and operated family business serving Alameda & Contra Costa County. We service all makes and models, offering top-quality comfort and energy efficiency solutions. Specializing in Furnace/Heating, Air Conditioning, and Ductless Mini-Split installation, we also provide repair and maintenance for Central HVAC systems, Ductwork, Indoor Air Quality, Electrical Repair & Installation, and Solar Installation. Free estimates are available for HVAC system replacement, new installations, and solar solutions. As a Lennox Premier Dealer, Daikin Comfort Pro, and WellAir Elite dealer, we are Diamond Certified, hold an A+ BBB Rating, and have been voted “The Best Heating & Air Company” and “The Most Community-Minded Company” by The Press in Brentwood, CA for two years. We are also SFGATE’s Best of the Bay Area Heating & A/C Service provider.

"Our technician Emanuel, was on time, delivered what he said he would and was professional, competent, and professional at all times. He ran into a challenging situation but in the end the project was completed to our satisfaction. Thanks Perfect Star, Robert Costa"

Robert C on October 2025


Avatar for Peter Levi Plumbing LLC

Peter Levi Plumbing LLC

1818 2nd Street
4.83(
6
)
Approved Pro

Peter Levi Plumbing LLC

1818 2nd Street
4.83(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
55 local quotes requested

We are a family-oriented company that has been committed to taking care of our team, customers and community since 1993. Our highly trained technicians are focused on providing the right options, to make sure you are focused on providing the right options, to make sure that you are 100% satisfied with every solution we deliver. Our goal is to give you peace of mind in knowing, that it comes to plumbing, heating and air needs - we'll always take care of it, because we are here to take care of you.

"Elsy ( I believe she was the plumber from your company via Angi) arrived as scheduled, on Saturday, 09/28/2024. She attempted to repair my garbage disposal unit but was unable to do so as the unit's wiring was worn out. I advised the unit is 40 yrs old. She recommended to purchase a new one. We made a trip together to the local Home Depot store and I purchased the same brand s she recommended. She installed it in record time (within the 2.5 hrs) and completed the job. She also cleaned the work space and carried the old one to my recycling bin. Very satisfied with her work. Also, I want to know if I will receive a billing statement for my records? Thank you for your time & assistance."

Lillian E on October 2024

We are a family-oriented company that has been committed to taking care of our team, customers and community since 1993. Our highly trained technicians are focused on providing the right options, to make sure you are focused on providing the right options, to make sure that you are 100% satisfied with every solution we deliver. Our goal is to give you peace of mind in knowing, that it comes to plumbing, heating and air needs - we'll always take care of it, because we are here to take care of you.

"Elsy ( I believe she was the plumber from your company via Angi) arrived as scheduled, on Saturday, 09/28/2024. She attempted to repair my garbage disposal unit but was unable to do so as the unit's wiring was worn out. I advised the unit is 40 yrs old. She recommended to purchase a new one. We made a trip together to the local Home Depot store and I purchased the same brand s she recommended. She installed it in record time (within the 2.5 hrs) and completed the job. She also cleaned the work space and carried the old one to my recycling bin. Very satisfied with her work. Also, I want to know if I will receive a billing statement for my records? Thank you for your time & assistance."

Lillian E on October 2024


Kazen Custom Heating & Air

307 Robin Circle
4.79(
120
)
Approved Pro

Kazen Custom Heating & Air

307 Robin Circle
4.79(
120
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
13 local quotes requested

With years of experience, Kazen Custom Heating & Air will take care of all your heating and air needs. Call us for service or repair work or if you have an install. We can handle that as well! We look forward to working with you.

"Great experience"

Cory H on October 2023

With years of experience, Kazen Custom Heating & Air will take care of all your heating and air needs. Call us for service or repair work or if you have an install. We can handle that as well! We look forward to working with you.

"Great experience"

Cory H on October 2023


Avatar for Bell Brother's Heating and Air, Inc.

Bell Brother's Heating and Air, Inc.

10555 Norden Ave.
4.67(
89
)
Approved Pro

Bell Brother's Heating and Air, Inc.

10555 Norden Ave.
4.67(
89
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
85 local quotes requested

At Bell Brothers, we’re The No Surprise Guys™—the price we quote is the price you pay, with no hidden fees. With 30+ years of experience, 4,700+ 5-star Google reviews, and 9 written guarantees, we’re Sacramento’s trusted choice for heating and cooling. Whether it’s A/C repair, furnace installation, or ductwork, our certified, background-checked technicians—The World’s Friendliest Technicians℠—show up on time, in uniform, and ready to help. For honest HVAC service and year-round comfort, count on Bell Brothers.

"Price was best around, quick friendly service.installed a suction in master bedroom at no charge."

lynne s on September 2025

At Bell Brothers, we’re The No Surprise Guys™—the price we quote is the price you pay, with no hidden fees. With 30+ years of experience, 4,700+ 5-star Google reviews, and 9 written guarantees, we’re Sacramento’s trusted choice for heating and cooling. Whether it’s A/C repair, furnace installation, or ductwork, our certified, background-checked technicians—The World’s Friendliest Technicians℠—show up on time, in uniform, and ready to help. For honest HVAC service and year-round comfort, count on Bell Brothers.

"Price was best around, quick friendly service.installed a suction in master bedroom at no charge."

lynne s on September 2025


Avatar for Beutler Air Conditioning & Plumbing

Beutler Air Conditioning & Plumbing

855 National Dr., Ste 109
5.00(
2
)
Approved Pro

Beutler Air Conditioning & Plumbing

855 National Dr., Ste 109
5.00(
2
)
Approved Pro
286 local quotes requested
69 years of experience

Beutler Air Conditioning and Plumbing is a premier provider of heating, air conditioning and plumbing services to residential, new construction and commercial customers in the Greater Sacramento area. Part of the ARS/Rescue Rooter Network, Beutler proudly serves both residential and light commercial customers through a knowledgeable team of trained specialists who undergo background checks and drug screening. Available 7 days a week, Beutler Air Conditioning and Plumbing offers products that are energy-efficient, environmentally aware and support new Green technology.

"No issues. Everything worked out great."

David C on August 2025

Beutler Air Conditioning and Plumbing is a premier provider of heating, air conditioning and plumbing services to residential, new construction and commercial customers in the Greater Sacramento area. Part of the ARS/Rescue Rooter Network, Beutler proudly serves both residential and light commercial customers through a knowledgeable team of trained specialists who undergo background checks and drug screening. Available 7 days a week, Beutler Air Conditioning and Plumbing offers products that are energy-efficient, environmentally aware and support new Green technology.

"No issues. Everything worked out great."

David C on August 2025


Avatar for Tyndall HVAC, Inc.

Tyndall HVAC, Inc.

2825 Mayflower Drive
4.62(
91
)
Approved Pro

Tyndall HVAC, Inc.

2825 Mayflower Drive
4.62(
91
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
22 years of experience

Tyndall HVAC is founded on principles of quality and integrity, boasting an impressive legacy that spans over 25 years. At the heart of our operations lies a steadfast commitment to excellence, a guiding principle that influences every aspect of our service, from the initial consultation to the finalization of each project. Our primary goal is to enhance homeowners' and business proprietors' living and working environments, ensuring their comfort and satisfaction. We pride ourselves on our transparent and fair pricing model, which features a flat-rate system to eliminate the possibility of unforeseen expenses. At Tyndall HVAC, we offer complimentary, no-obligation proposals for new installations, affirming our position as a trusted and reliable partner in HVAC solutions.

"My AC stopped working last November, and since then i had 4 contractors i called to fix it, i was turned down by everyone. i called Tyndall and peter came out and talked about it with me, actually troubleshot it, and 2 days later had parts and fixed it. i would give them 6 stars if i could. im so glad to have my ac running again. my recommendation, if you want something done, call Tyndall, because the rest of the contractors seem to just say its not fixable and leave without even looking at it. these guys were the first people that listened, then looked at the unit before declining service, and then actually fixed it. 10/10 great job and thank you."

Saabi A on June 2025

Tyndall HVAC is founded on principles of quality and integrity, boasting an impressive legacy that spans over 25 years. At the heart of our operations lies a steadfast commitment to excellence, a guiding principle that influences every aspect of our service, from the initial consultation to the finalization of each project. Our primary goal is to enhance homeowners' and business proprietors' living and working environments, ensuring their comfort and satisfaction. We pride ourselves on our transparent and fair pricing model, which features a flat-rate system to eliminate the possibility of unforeseen expenses. At Tyndall HVAC, we offer complimentary, no-obligation proposals for new installations, affirming our position as a trusted and reliable partner in HVAC solutions.

"My AC stopped working last November, and since then i had 4 contractors i called to fix it, i was turned down by everyone. i called Tyndall and peter came out and talked about it with me, actually troubleshot it, and 2 days later had parts and fixed it. i would give them 6 stars if i could. im so glad to have my ac running again. my recommendation, if you want something done, call Tyndall, because the rest of the contractors seem to just say its not fixable and leave without even looking at it. these guys were the first people that listened, then looked at the unit before declining service, and then actually fixed it. 10/10 great job and thank you."

Saabi A on June 2025


Avatar for Golden Bay Electric

Golden Bay Electric

111 Poppy Ct
4.91(
27
)
Approved Pro

Golden Bay Electric

111 Poppy Ct
4.91(
27
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
4 years of experience

Golden Bay Electric is dedicated to providing our customers with the best quality work and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"Job was quoted so quickly and was onsite within 90 minutes. I have rarely received such quick service for a small job. Electrician was courteous, clean and professional. No price gouging with this company, they will now be my go to all my electrical needs going forward. Thanks Golden Bay Electric!"

Steve C on March 2025

Golden Bay Electric is dedicated to providing our customers with the best quality work and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"Job was quoted so quickly and was onsite within 90 minutes. I have rarely received such quick service for a small job. Electrician was courteous, clean and professional. No price gouging with this company, they will now be my go to all my electrical needs going forward. Thanks Golden Bay Electric!"

Steve C on March 2025


ACP Mechanical

457 Cedar River Wy
5.00(
9
)

ACP Mechanical

457 Cedar River Wy
5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We take credit cards. Located in Sacramento, CA, we specialize in Heating, Ventilation and Air Conditioning (HVAC) installation, repair and maintenance. We work with you to make sure you have the most efficient and comfortable system for your home. A proper system can not only help improve air comfort and quality, but it can also help save you money on your energy bills. We are your one stop source that delivers quality work with a service oriented attitude. We service the greater Sacramento Area and neighboring cities. Emergency services available Call 916-704-8556. Ask about our Financing Options!

"Work was done promptly and efficiently."

James C on November 2019

We take credit cards. Located in Sacramento, CA, we specialize in Heating, Ventilation and Air Conditioning (HVAC) installation, repair and maintenance. We work with you to make sure you have the most efficient and comfortable system for your home. A proper system can not only help improve air comfort and quality, but it can also help save you money on your energy bills. We are your one stop source that delivers quality work with a service oriented attitude. We service the greater Sacramento Area and neighboring cities. Emergency services available Call 916-704-8556. Ask about our Financing Options!

"Work was done promptly and efficiently."

James C on November 2019


Avatar for Same Day Plumbing, Heating, Cooling

Same Day Plumbing, Heating, Cooling

600 American Way
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Same Day Plumbing, Heating, Cooling

600 American Way
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
1085 local quotes requested
2 years of experience

Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.

Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.

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FAQs for thermostat installation and replacement projects in Fairfield, CA

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 Fairfield, CA 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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