Top-rated thermostat installers and replacers.

Get matched with top thermostat installers and replacers in Los Angeles, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Thermostat installers and replacers in Los Angeles

Avatar for DNA Heating & Cooling, Inc.

DNA Heating & Cooling, Inc.

14833 Willard Ave
4.85(
52
)
Approved Pro

DNA Heating & Cooling, Inc.

14833 Willard Ave
4.85(
52
)
Approved Pro
Customers say: True professional
64 local quotes requested
9 years of experience

With nearly 15 years in the Heating and Cooling industry, DNA Heating & Cooling, Inc., proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

"Paid $1500 for drain job on our hvac system the previous folks of our place didnt do. Our ceiling was low so they had to make a makeshift drain. Overall the job was done and it works. Its not the best job, but it does work."

Albert C on August 2025

With nearly 15 years in the Heating and Cooling industry, DNA Heating & Cooling, Inc., proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

"Paid $1500 for drain job on our hvac system the previous folks of our place didnt do. Our ceiling was low so they had to make a makeshift drain. Overall the job was done and it works. Its not the best job, but it does work."

Albert C on August 2025


Avatar for Highland Air LLC

Highland Air LLC

638 Lindero Canyon Rd, CMB 273
4.97(
97
)
Approved Pro

Highland Air LLC

638 Lindero Canyon Rd, CMB 273
4.97(
97
)
Approved Pro
Customers say: True professional
14 local quotes requested
4 years of experience

We specialize in all your home heating and air conditioning needs, and guarantee you a job well done! Whether it be your furnace that needs to be repaired, or an air conditioner that needs serviced, we are your guys! We strive to exceed the homeowner's expectations each and every time, and get the job done the way you want it. We work in a timely fashion and always pay attention to detail. Proudly serving Oak Park and surrounding areas. Free estimates. Call today!

"ABSOLUTELY PAINLESS AND VERY FAIR PARTS & LABOR PRICING"

DAVID B on October 2025

We specialize in all your home heating and air conditioning needs, and guarantee you a job well done! Whether it be your furnace that needs to be repaired, or an air conditioner that needs serviced, we are your guys! We strive to exceed the homeowner's expectations each and every time, and get the job done the way you want it. We work in a timely fashion and always pay attention to detail. Proudly serving Oak Park and surrounding areas. Free estimates. Call today!

"ABSOLUTELY PAINLESS AND VERY FAIR PARTS & LABOR PRICING"

DAVID B on October 2025


"Outstanding"

Lee M on August 2022

Experience our Powerful, Professional, & Affordable services. Call Power Pro Plumbing Heating & Air for plumbing, heating, or AC needs. Call: 833-457-8415.

"Outstanding"

Lee M on August 2022


Avatar for Canyon City Air

Canyon City Air

615 Los Cerritos Rd
5.00(
12
)
Approved Pro

Canyon City Air

615 Los Cerritos Rd
5.00(
12
)
Approved Pro
Customers say: Quick response
73 local quotes requested
2 years of experience

Canyon City Air 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.

"Great customer service. Very professional."

Ken N on September 2025

Canyon City Air 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.

"Great customer service. Very professional."

Ken N on September 2025


Avatar for Trinity Heating and AC

Trinity Heating and AC

3148 E La Palma Avenue, Unit H
5.00(
27
)
Approved Pro

Trinity Heating and AC

3148 E La Palma Avenue, Unit H
5.00(
27
)
Approved Pro
Customers say: Quick response
49 local quotes requested
4 years of experience

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"They were prompt, professional and fairly priced. It was a very good experience. "

James H on September 2025

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"They were prompt, professional and fairly priced. It was a very good experience. "

James H on September 2025


Avatar for Pros 360 - Performance Contractor Inc.

Pros 360 - Performance Contractor Inc.

16789 Schoenborn Street
5.00(
4
)
Approved Pro

Pros 360 - Performance Contractor Inc.

16789 Schoenborn Street
5.00(
4
)
Approved Pro
Customers say: Quick response
51 local quotes requested
18 years of experience

At Pros 360, we are proud of our reputation for providing exceptional customer service to our clients most of whom have been with us since we opened our doors. We have over 25 years of experience in the HVAC and construction industries, and we know what it takes to be in service and satisfy the diverse needs of our customers: efficient service that utilizes innovative solutions so that we are able to exceed expectations. When you choose our team, you can rest assured that you will be working with a company that prioritizes customers above all else. We hold an outstanding record with the Better Business Bureau, the Contractors State License Board, and, most importantly, the customers we serve every day. Additionally, we have proven time and time again that our professional technicians and installers are among the best in the industry, the reviews they get are top notch; most importantly they care and take pride in their work.

"Prompt and knowledgeable. I also appreciate them accommodating me last minute because the other HVAC company I scheduled didnâ t even have time to confirm my appointment. Pro 360 is now my go to for HVAC issues."

Jeff B on May 2024

At Pros 360, we are proud of our reputation for providing exceptional customer service to our clients most of whom have been with us since we opened our doors. We have over 25 years of experience in the HVAC and construction industries, and we know what it takes to be in service and satisfy the diverse needs of our customers: efficient service that utilizes innovative solutions so that we are able to exceed expectations. When you choose our team, you can rest assured that you will be working with a company that prioritizes customers above all else. We hold an outstanding record with the Better Business Bureau, the Contractors State License Board, and, most importantly, the customers we serve every day. Additionally, we have proven time and time again that our professional technicians and installers are among the best in the industry, the reviews they get are top notch; most importantly they care and take pride in their work.

"Prompt and knowledgeable. I also appreciate them accommodating me last minute because the other HVAC company I scheduled didnâ t even have time to confirm my appointment. Pro 360 is now my go to for HVAC issues."

Jeff B on May 2024


Avatar for Eddy's Handyman Service

Eddy's Handyman Service

1145 Cherry Ave
4.72(
108
)
Approved Pro

Eddy's Handyman Service

1145 Cherry Ave
4.72(
108
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
718 local quotes requested

We are a family-owned, owner-operated local company priding ourselves in being a prompt and reliable handyman service and making sure all of our customers are 100% satisfied. Our handymen are experienced in all trades and confident you will be pleased with the result! Get in touch today for a free quote, and get your project rolling as quickly as possible!

"He gave us an estimate then went to Home Depot to get supplies, for which we paid. He spread a drop cloth on entry pavement. He removed old pain pieces on frame, cut the screen he bought in half and screwed them to the bottom of each door. He then spray painted the doors white. The doors needed more paint, so he went to Home Depot again and bought additional cans of paint (12 in total). I got sick from the paint smell, so my sister took over. When he finished she paid him. When I was able to inspect the job, I saw a hole in one doors screen and long screws sticking out 3/4" on both screens. I sent hime a text message to his phone, but got no response, so I phoned him to discuss the matter. He said his drill slipped punching to hole in the screen and that's the only screws he had. He said the screen is too expensive to replace and the screws are it. He said he"

Jerry S on October 2025

We are a family-owned, owner-operated local company priding ourselves in being a prompt and reliable handyman service and making sure all of our customers are 100% satisfied. Our handymen are experienced in all trades and confident you will be pleased with the result! Get in touch today for a free quote, and get your project rolling as quickly as possible!

"He gave us an estimate then went to Home Depot to get supplies, for which we paid. He spread a drop cloth on entry pavement. He removed old pain pieces on frame, cut the screen he bought in half and screwed them to the bottom of each door. He then spray painted the doors white. The doors needed more paint, so he went to Home Depot again and bought additional cans of paint (12 in total). I got sick from the paint smell, so my sister took over. When he finished she paid him. When I was able to inspect the job, I saw a hole in one doors screen and long screws sticking out 3/4" on both screens. I sent hime a text message to his phone, but got no response, so I phoned him to discuss the matter. He said his drill slipped punching to hole in the screen and that's the only screws he had. He said the screen is too expensive to replace and the screws are it. He said he"

Jerry S on October 2025


Avatar for Brody Pennell Heating & Air Conditioning

Brody Pennell Heating & Air Conditioning

8599 Venice Blvd.
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Brody Pennell Heating & Air Conditioning

8599 Venice Blvd.
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
25 local quotes requested
80 years of experience

In 1999, Pennell Air Conditioning and Brody Heating & Air Conditioning, both in West Los Angeles, merged and became Brody Pennell. Jack Pennell began serving Los Angeles area homeowners in 1945. Today, we carry on that great legacy of outstanding customer service as we continue to serve the next generation of our clientele. Our rapid response fleet is ready to serve you 24/7, when you need us the most. Our friendly technicians are knowledgeable and helpful, and we can fix most any problem you have. We look forward to adding you to the Brody Pennell family.

In 1999, Pennell Air Conditioning and Brody Heating & Air Conditioning, both in West Los Angeles, merged and became Brody Pennell. Jack Pennell began serving Los Angeles area homeowners in 1945. Today, we carry on that great legacy of outstanding customer service as we continue to serve the next generation of our clientele. Our rapid response fleet is ready to serve you 24/7, when you need us the most. Our friendly technicians are knowledgeable and helpful, and we can fix most any problem you have. We look forward to adding you to the Brody Pennell family.


Avatar for Just Be Cool Supply, LLC

Just Be Cool Supply, LLC

44255 62nd Street W
4.96(
26
)
Approved Pro

Just Be Cool Supply, LLC

44255 62nd Street W
4.96(
26
)
Approved Pro
Customers say: Quick response
17 local quotes requested
3 years of experience

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.

"They came out fixed it within a hour , respectful , professional, knowledgeable. Good pricing !!"

Lorraine C on October 2025

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.

"They came out fixed it within a hour , respectful , professional, knowledgeable. Good pricing !!"

Lorraine C on October 2025


Avatar for SO CAL BOYS HEATING & AIR INC

SO CAL BOYS HEATING & AIR INC

13397 Harlow Ave
4.96(
47
)
Approved Pro

SO CAL BOYS HEATING & AIR INC

13397 Harlow Ave
4.96(
47
)
Approved Pro
Customers say: True professional
74 local quotes requested
3 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"fantastic job. Professional. Provided advise on what needs be done in the future."

Sean O on October 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"fantastic job. Professional. Provided advise on what needs be done in the future."

Sean O on October 2025

...
Showing 1-10 of 1014
FAQs for thermostat installation and replacement projects in Los Angeles, 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 Los Angeles, 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.

  • Solar panel on the roof of a home

    HomeAdvisor's Solar Panel Price Guide gives the average home solar system and panel prices. Explore solar panel pricing per watt or square foot.

  • solar panels on roof in suburban neighborhood

    HomeAdvisor’s Virginia solar panel cost guide digs into the average cost of solar panels in Virginia and cost factors around the state. Find prices and pros for your solar project.

  • Solar panel system on single roof

    HomeAdvisor’s Solar Panel Cost Guide for Pennsylvania covers project costs in Philadelphia and Pittsburgh. Use this guide to find solar panel costs for PA.

  • A house with installed solar panels on the roof

    HomeAdvisor's guide to the cost of solar panels in Texas explores solar panel cost by type and location. Find out how much you'll pay to install solar panels on your Texas property.

  • Solar panels on shingle roof of Florida house

    HomeAdvisor's Guide to the Cost of Solar Panels in Florida explores solar panel costs by type and location. Find out how much you'll pay to install solar panels on your Florida property.

  • Solar panels on a flat roof of a mediterranean house

    HomeAdvisor’s Solar Panel Cost Guide looks at the average cost of solar panels in Arizona. Find out how much solar panels cost in your city.